JP2001049530A - Thermo-adhesive conjugate fiber, non-woven fabric and processed non-woven fabric using the same - Google Patents
Thermo-adhesive conjugate fiber, non-woven fabric and processed non-woven fabric using the sameInfo
- Publication number
- JP2001049530A JP2001049530A JP21923599A JP21923599A JP2001049530A JP 2001049530 A JP2001049530 A JP 2001049530A JP 21923599 A JP21923599 A JP 21923599A JP 21923599 A JP21923599 A JP 21923599A JP 2001049530 A JP2001049530 A JP 2001049530A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- heat
- nonwoven fabric
- conjugate fiber
- superabsorbent resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 179
- 239000000853 adhesive Substances 0.000 title claims abstract description 68
- 239000004745 nonwoven fabric Substances 0.000 title claims description 77
- 229920005989 resin Polymers 0.000 claims abstract description 79
- 239000011347 resin Substances 0.000 claims abstract description 79
- 238000002844 melting Methods 0.000 claims abstract description 43
- 230000008018 melting Effects 0.000 claims abstract description 34
- 229920000098 polyolefin Polymers 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 6
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- -1 acrylic ester Chemical class 0.000 claims description 13
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000000306 component Substances 0.000 description 33
- 239000002250 absorbent Substances 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 17
- 229920000642 polymer Polymers 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 238000009987 spinning Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000002788 crimping Methods 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 238000009960 carding Methods 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 150000008065 acid anhydrides Chemical class 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 101001034314 Homo sapiens Lactadherin Proteins 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 102100039648 Lactadherin Human genes 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
(57)【要約】
【課題】 高吸水性樹脂と混合し、熱処理を行うことで
高吸水性樹脂と強固に接着し、脱落防止が可能な熱接着
性複合繊維及びそれを用いた成形体を提供すること。
【解決手段】 高吸水性樹脂粉末もしくは高吸水性樹脂
からなる繊維と併用して用いられる熱接着性複合繊維で
あって、該熱接着性複合繊維は不飽和カルボン酸および
不飽和カルボン酸無水物から選ばれた少なくとも１種を
含むビニルモノマーでグラフト重合された変成ポリオレ
フィンで構成される低融点成分と、該低融点成分より１
５℃以上高い融点を有する高融点成分とからなる熱接着
性複合繊維であって、該低融点成分は該熱接着性複合繊
維表面の少なくとも一部を長さ方向に連続して形成して
おり、且つ該熱接着性複合繊維は単糸繊度０．５〜５０
デニールであることを特徴とする熱接着性複合繊維。PROBLEM TO BE SOLVED: To provide a thermoadhesive conjugate fiber which is mixed with a superabsorbent resin and heat-treated to be firmly adhered to the superabsorbent resin and capable of preventing falling off, and a molded article using the same. To provide. SOLUTION: This is a heat-adhesive conjugate fiber used in combination with a superabsorbent resin powder or a fiber made of a superabsorbent resin, wherein the heat-adhesive conjugate fiber is an unsaturated carboxylic acid and an unsaturated carboxylic anhydride. A low-melting component composed of a modified polyolefin graft-polymerized with a vinyl monomer containing at least one selected from the group consisting of:
A heat-adhesive conjugate fiber comprising a high-melting component having a melting point higher than 5 ° C., wherein the low-melting component forms at least a part of the surface of the heat-adhesive conjugate fiber continuously in a length direction. And the heat-adhesive conjugate fiber has a single yarn fineness of 0.5 to 50.
A heat-adhesive conjugate fiber characterized by being denier.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高吸水性樹脂粉末
もしくは高吸水性樹脂からなる繊維（以下これらを単に
高吸水性樹脂と云うことがある）との熱接着性の良好な
ポリオレフィン系複合繊維、繊維集合体及びそれを用い
た不織布に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyolefin-based composite having good thermal adhesion with a superabsorbent resin powder or a fiber comprising a superabsorbent resin (hereinafter, these may be simply referred to as a superabsorbent resin). The present invention relates to a fiber, a fiber aggregate, and a nonwoven fabric using the same.
【０００２】[0002]
【従来の技術】結晶性ポリプロピレンを用いた熱接着性
複合繊維としては、従来、結晶性ポリプロピレンとポリ
エチレンを各複合成分として溶融複合紡糸して得られた
ものが知られている。このような従来の熱接着性複合繊
維は、通常ウエッブに形成されたのち、低融点のポリエ
チレン成分の融点以上、高融点のポリプロピレン成分の
融点以下で加熱することによってウェッブの各繊維間接
触部が融着された、いわゆる不織布が形成されるが、か
かる不織布は、布、木材、金属等の他の異質材料との接
着性が弱い。従って上記のような不織布を他の異質素材
に接着させて使用したり、または他の素材と組み合わせ
て繊維集合体として複合材料を形成する場合には、新た
にバインダーを使用する必要がある。また、仮にバイン
ダーを使用した場合でもその接着性は必ずしも良好では
なく、仮に接着させることができても、複合素材とする
材料の性能例えば高吸水性樹脂の吸水性を低下させるこ
とが多かった。2. Description of the Related Art As a heat-adhesive conjugate fiber using crystalline polypropylene, a fiber obtained by melt-composite spinning of crystalline polypropylene and polyethylene as composite components has been known. Such a conventional heat-adhesive conjugate fiber is usually formed on a web, and then heated at a temperature higher than the melting point of the low-melting-point polyethylene component and lower than the melting point of the high-melting-point polypropylene component, whereby the inter-fiber contact portions of the web are formed. A fused, so-called nonwoven fabric is formed, but such nonwoven fabric has poor adhesion to other foreign materials such as cloth, wood, metal and the like. Therefore, when the above-mentioned nonwoven fabric is used by bonding it to another foreign material, or when it is combined with another material to form a composite material as a fiber aggregate, it is necessary to newly use a binder. Even if a binder is used, the adhesiveness is not always good. Even if the binder can be used, the performance of a material used as a composite material, for example, the water absorption of a highly water-absorbent resin is often reduced.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、高吸
水性樹脂と混合して用いる際に、高吸水性樹脂との接着
性が高く、高吸水性樹脂の剥離または脱落が防止される
と共に、良好な吸水性を示し嵩高で比容積が大きな不織
布を提供し得るポリオレフィン系複合繊維、繊維集合
体、及び不織布を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a highly water-absorbent resin having a high adhesiveness when used in combination with a highly water-absorbent resin, thereby preventing peeling or falling off of the highly water-absorbent resin. In addition, it is an object of the present invention to provide a polyolefin-based composite fiber, a fiber aggregate, and a nonwoven fabric which can provide a nonwoven fabric which exhibits good water absorption, is bulky, and has a large specific volume.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、上記目的
を達成するために、鋭意研究を重ねた結果、後述する特
定の変成ポリオレフィンを用いた特定構造、特定繊度の
熱接着性複合繊維と高吸水性樹脂を混合し、熱処理を施
すことにより両者の接着が良好となり、且つ該熱接着性
複合繊維は、例えばエアレイド法で繊維集合体または不
織布とすることによって、不織布内部の構造がより均一
となり、一層接着効果が促進され、混合した繊維から高
吸水性樹脂が剥離又は脱落を起こすことなく、高い吸収
性を発現し吸収体として使用できることを見出し、この
知見に基づいて本発明を完成した。Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to achieve the above object, and as a result, a heat-bondable conjugate fiber having a specific structure and a specific fineness using a specific modified polyolefin described later. And the superabsorbent resin are mixed, and heat treatment is performed to improve the adhesion between the two, and the heat-adhesive conjugate fiber is formed into a fiber aggregate or a nonwoven fabric by, for example, an air laid method, so that the internal structure of the nonwoven fabric is improved. It has been found that it becomes uniform, the adhesion effect is further promoted, and the superabsorbent resin exhibits high absorbency and can be used as an absorber without causing peeling or falling off of the mixed fiber, and based on this finding, completed the present invention. did.
【０００５】本発明は、前記課題を解決するために以下
の構成を有する。 （１） 高吸水性樹脂粉末もしくは高吸水性樹脂からな
る繊維と併用して用いられる熱接着性複合繊維であっ
て、該熱接着性複合繊維は不飽和カルボン酸および不飽
和カルボン酸無水物から選ばれた少なくとも１種を含む
ビニルモノマー（以下これらを変成剤と云うことがあ
る）でグラフト重合された変成ポリオレフィン（変成剤
含量は０．０５〜２モル／Ｋｇ）で構成される低融点成
分と、該低融点成分より１５℃以上高い融点を有する高
融点成分とからなる熱接着性複合繊維であって、該低融
点成分は該熱接着性複合繊維表面の少なくとも一部を長
さ方向に連続して形成しており、且つ該熱接着性複合繊
維は単糸繊度０．５〜５０デニールであることを特徴と
する熱接着性複合繊維。 （２） 変成剤が無水マレイン酸、アクリル酸及びメタ
クリル酸から選ばれた少なくとも１種以上を含む変成剤
である（１）項に記載の熱接着性複合繊維。 （３） 変成剤が無水マレイン酸とスチレンから構成さ
れた変成剤である（１）項に記載の熱接着性複合繊維。 （４） 変成剤が無水マレイン酸と、アクリル酸エステ
ル若しくはメタクリル酸エステルの１種以上から構成さ
れた変成剤である（１）項に記載の熱接着性複合繊維。 （５） （１）〜（４）項の何れか１項記載の熱接着性
複合繊維の捲縮数が５〜３０山／２５ｍｍ、且つ繊維長
が３〜１００ｍｍであることを特徴とする熱接着性複合
繊維。 （６） （１）〜（５）項の何れか１項記載の熱接着性
複合繊維と高吸水性樹脂粉末もしくは高吸水性樹脂から
なる繊維を混合した繊維または繊維集合体。 （７） （６）項記載の繊維集合体を熱処理して繊維同
士の交点又は繊維と高吸水性樹脂粉末もしくは高吸水性
樹脂からなる繊維の交点が接着された不織布。 （８） （６）または（７）項に記載の繊維集合体もし
くは不織布がエアレイド法で得られた繊維集合体もしく
は不織布である（６）項もしくは（７）項記載の繊維集
合体もしくは不織布。 （９） （６）〜（８）項の何れか１項記載の繊維集合
体もしくは不織布と、他の繊維集合体もしくは不織布を
混合又は積層し、繊維同士の交点を熱接合して得られる
複合化不織布。 （１０） （６）〜（９）項の何れか１項記載の繊維集
合体または不織布を用いたワイパー。The present invention has the following configuration in order to solve the above problems. (1) A thermoadhesive conjugate fiber used in combination with a superabsorbent resin powder or a fiber comprising a superabsorbent resin, wherein the thermoadhesive conjugate fiber is composed of an unsaturated carboxylic acid and an unsaturated carboxylic anhydride. Low melting point component composed of a modified polyolefin grafted with a vinyl monomer containing at least one selected one (hereinafter, these may be referred to as a modifying agent) (the modifying agent content is 0.05 to 2 mol / Kg). And a high-melting component having a melting point higher than the low-melting component by 15 ° C. or more, wherein the low-melting component extends at least a part of the surface of the thermo-adhesive conjugate fiber in the length direction. A heat-adhesive conjugate fiber formed continuously and having a single yarn fineness of 0.5 to 50 denier. (2) The heat-adhesive conjugate fiber according to (1), wherein the denaturing agent is at least one selected from maleic anhydride, acrylic acid and methacrylic acid. (3) The heat-adhesive conjugate fiber according to item (1), wherein the denaturing agent is a denaturing agent composed of maleic anhydride and styrene. (4) The heat-adhesive conjugate fiber according to (1), wherein the denaturing agent is a denaturing agent composed of maleic anhydride and at least one of an acrylic ester or a methacrylic ester. (5) The heat-adhesive conjugate fiber according to any one of (1) to (4), wherein the number of crimps is 5 to 30 ridges / 25 mm, and the fiber length is 3 to 100 mm. Adhesive conjugate fiber. (6) A fiber or fiber aggregate obtained by mixing the heat-adhesive conjugate fiber according to any one of (1) to (5) with a fiber made of a superabsorbent resin powder or a superabsorbent resin. (7) A nonwoven fabric in which the intersection of the fibers or the intersection of the fiber and the fiber made of the superabsorbent resin powder or the superabsorbent resin is bonded by heat-treating the fiber assembly according to (6). (8) The fiber aggregate or nonwoven fabric according to (6) or (7), wherein the fiber aggregate or nonwoven fabric according to (6) or (7) is a fiber aggregate or nonwoven fabric obtained by an airlaid method. (9) A composite obtained by mixing or laminating the fiber aggregate or nonwoven fabric according to any one of (6) to (8) with another fiber aggregate or nonwoven fabric, and thermally bonding intersections of the fibers. Non-woven fabric. (10) A wiper using the fiber aggregate or the nonwoven fabric according to any one of (6) to (9).
【０００６】[0006]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明の熱接着性複合繊維とは、変成ポリオレフィンを
低融点成分とし、低融点成分より融点が少なくとも１５
℃高いポリマーを高融点成分として、該低融点成分が繊
維表面の少なくとも一部を長さ方向に連続して形成して
なる複合繊維である。変成ポリオレフィンに用いられる
変成剤は不飽和カルボン酸、その酸無水物から選ばれた
少なくとも１種を含むビニルモノマーであり、具体的に
は無水マレイン酸、マレイン酸、アクリル酸、メタクリ
ル酸等から選択された不飽和カルボン酸、若しくはその
無水物を必須成分とし、それ以外のビニルモノマーをも
含むことができるものである。それ以外のビニルモノマ
ーとしては、ラジカル重合性に優れた汎用モノマー使用
することができる。例えば、スチレン、α−メチルスチ
レン等のスチレン類、メタクリル酸メチル、メタクリル
酸エチル、メタクリル酸２−ヒドロキシエチル、メタク
リル酸ジメチルアミノエチル等のメタクリル酸エステル
類、或いは同様なアクリル酸エステル等を挙げることが
できる。これらのビニルモノマーの変成ポリオレフィン
中での濃度は０．０５〜２モル／Ｋｇである。そのうち
不飽和カルボン酸若しくは酸無水物の合計量は、０．０
３〜２モル／Ｋｇである。変成ポリオレフィン中のカル
ボン酸若しくは酸無水物は、高吸水性樹脂との接着性に
直接寄与する成分である。また、他のビニルモノマーは
酸のポリマー中への均一分散を助けることによって、接
着性を側面から助けると共に、極性の乏しいポリオレフ
ィンに極性を付与し、高吸水性樹脂との親和性を向上し
て、均一分散の向上に寄与するものでも有る。これらの
ビニルモノマーを幹ポリマーにグラフト重合するのは通
常の方法で行なうことができ、ラジカル開始剤を用い
て、ビニルモノマーを混合してランダムコポリマーから
なる側鎖を、若しくは異種モノマーを順次重合すること
によるブロックコポリマーからなる側鎖を導入すること
ができる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The heat-adhesive conjugate fiber of the present invention is a modified polyolefin having a low melting point component and having a melting point of at least 15 lower than that of the low melting point component.
A composite fiber comprising a polymer having a high melting point as a high melting point component and the low melting point component forming at least a part of the fiber surface continuously in the length direction. The modifier used in the modified polyolefin is a vinyl monomer containing at least one selected from unsaturated carboxylic acids and acid anhydrides thereof, and is specifically selected from maleic anhydride, maleic acid, acrylic acid, methacrylic acid and the like. The unsaturated carboxylic acid thus obtained or its anhydride is an essential component, and may contain other vinyl monomers. As the other vinyl monomers, general-purpose monomers excellent in radical polymerizability can be used. For example, styrene, styrenes such as α-methylstyrene, methacrylates such as methyl methacrylate, ethyl methacrylate, 2-hydroxyethyl methacrylate, dimethylaminoethyl methacrylate, or similar acrylates Can be. The concentration of these vinyl monomers in the modified polyolefin is 0.05 to 2 mol / Kg. Among them, the total amount of unsaturated carboxylic acid or acid anhydride is 0.0
It is 3 to 2 mol / Kg. The carboxylic acid or acid anhydride in the modified polyolefin is a component that directly contributes to the adhesion to the superabsorbent resin. In addition, other vinyl monomers aid in uniform dispersion of the acid in the polymer, helping from the side, as well as imparting polarity to poorly polar polyolefins and improving affinity with superabsorbent resins. It also contributes to the improvement of uniform dispersion. Graft polymerization of these vinyl monomers to the backbone polymer can be carried out in a usual manner, using a radical initiator, mixing vinyl monomers to sequentially polymerize side chains composed of random copolymers, or sequentially polymerize different monomers. It is possible to introduce a side chain consisting of an optional block copolymer.
【０００７】変成ポリオレフィンの幹ポリマーは、ポリ
エチレン、ポリプロピレン、ポリブテン−１等が用いら
れる。ポリエチレンとしては、高密度ポリエチレン、直
鎖状低密度ポリエチレン、低密度ポリエチレン等が用い
られる。これらは密度０．９０〜０．９７ｇ／ｃｍ3の
ホモポリマー（単独重合体）、若しくは他のα−オレフ
ィンとのコポリマー（共重合体）であり、融点は１００
〜１３５℃程度のポリマーである。ポリプロピレンは、
融点１３０〜１７０℃の結晶性ポリマーであり、ホモポ
リマー、若しくは他のオレフィンとのコポリマーであ
る。ポリブテン−１は、融点１１０〜１３０℃の結晶性
ポリマーであり、ホモポリマー、若しくは他のオレフィ
ンとのコポリマーである。これらのポリマーの中では、
融点範囲、グラフト反応の容易性を考慮するとポリエチ
レンが好ましい。As the backbone polymer of the modified polyolefin, polyethylene, polypropylene, polybutene-1 and the like are used. As polyethylene, high-density polyethylene, linear low-density polyethylene, low-density polyethylene and the like are used. These are homopolymers (homopolymers) having a density of 0.90 to 0.97 g / cm 3 or copolymers (copolymers) with other α-olefins having a melting point of 100
It is a polymer of about 135 ° C. Polypropylene is
It is a crystalline polymer having a melting point of 130 to 170 ° C, and is a homopolymer or a copolymer with another olefin. Polybutene-1 is a crystalline polymer having a melting point of 110 to 130 ° C., and is a homopolymer or a copolymer with another olefin. Among these polymers,
Considering the melting point range and the ease of the graft reaction, polyethylene is preferred.
【０００８】低融点成分として用いられる変成ポリオレ
フィンは、単一の変成ポリオレフィンでも、変成ポリオ
レフィンの２種以上の混合物でも、変成ポリオレフィン
と変成ポリオレフィンの原料である幹ポリマーとの混合
物の形でも用いることができる。異種ポリマーの混合物
であった場合にもポリマー中の変成剤の含量が０．０５
〜２モル／Ｋｇの範囲に入っていれば良い。The modified polyolefin used as the low melting point component may be used in the form of a single modified polyolefin, a mixture of two or more modified polyolefins, or a mixture of the modified polyolefin and a base polymer which is a raw material of the modified polyolefin. it can. Even in the case of a mixture of different polymers, the content of the modifying agent in the polymer is 0.05.
What is necessary is just to be in the range of 2 mol / Kg.
【０００９】高融点成分としては、前記変成ポリオレフ
ィンの原料である幹ポリマーや、ポリプロピレン、ポリ
エステル、ポリアミド等の結晶性ポリマーを用いること
ができる。これらのポリマーの中では耐薬品性、融点の
面からみてプロピレンホモポリマー、若しくはエチレ
ン、ブテン−１等α−オレフィンとプロピレンとの結晶
性プロピレンコポリマーが好ましい。低融点成分と高融
点成分の複合比は１０／９０〜９０／１０の範囲なら紡
糸可能であるが、３０／７０〜７０／３０が好ましく、
これ以上低融点成分が減少し過ぎると接着性が低下し、
また増加し過ぎると紡糸性が低下し、何れも好ましくな
い。As the high melting point component, a backbone polymer which is a raw material of the modified polyolefin or a crystalline polymer such as polypropylene, polyester, polyamide or the like can be used. Among these polymers, a propylene homopolymer or a crystalline propylene copolymer of an α-olefin such as ethylene and butene-1 and propylene is preferable from the viewpoint of chemical resistance and melting point. If the compounding ratio of the low melting point component and the high melting point component is in the range of 10/90 to 90/10, spinning is possible, but 30/70 to 70/30 is preferable.
If the low melting point component is reduced too much, the adhesiveness is reduced,
On the other hand, if it is excessively increased, the spinnability decreases, and neither is preferable.
【００１０】本発明に関わる低融点成分及び高融点成分
には、本発明の効果を妨げない範囲内でさらに、酸化防
止剤、光安定剤、紫外線吸収剤、中和剤、造核剤、エポ
キシ安定剤、滑剤、抗菌剤、難燃剤、帯電防止剤、顔
料、可塑剤などの添加剤を適宜必要に応じて添加しても
よい。The low melting point component and the high melting point component according to the present invention further include an antioxidant, a light stabilizer, an ultraviolet absorber, a neutralizing agent, a nucleating agent, an epoxy as long as the effects of the present invention are not impaired. Additives such as stabilizers, lubricants, antibacterial agents, flame retardants, antistatic agents, pigments, and plasticizers may be added as needed.
【００１１】以下に本発明の熱接着性複合繊維を製造す
る各工程を述べるが、これは一つの方法であり、その
他、一般的に公知なスパンボンド法、メルトブロー法等
により熱接着性複合繊維とすることも可能である。本発
明の熱接着性複合繊維は、紡糸工程で未延伸糸として製
造し、延伸工程で延伸処理を施し、捲縮加工工程で必要
に応じて捲縮を付与することで得られる。紡糸工程で
は、低融点成分が繊維表面の少なくとも一部を形成する
ように並列型口金、または低融点成分を鞘成分とし高融
点成分を芯成分とする鞘芯型口金、若しくは偏芯鞘芯型
口金を用い、通常用いられる溶融紡糸機により紡糸する
ことによって、未延伸状態の熱接着性複合繊維として得
ることができる。このとき、繊維表面を形成する低融点
成分の形成割合は小さくともそれなりの接着力を示す
が、通常、繊維断面円周率で５０％以上の場合に接着力
は充分であり、特に５０〜１００％の場合極めて強力と
なり好ましい。The respective steps for producing the heat-adhesive conjugate fiber of the present invention will be described below. This is one method, and the heat-adhesive conjugate fiber is prepared by a generally known spunbond method, melt blow method or the like. It is also possible to use The heat-adhesive conjugate fiber of the present invention is obtained by producing an undrawn yarn in a spinning step, performing a drawing treatment in a drawing step, and applying crimping as necessary in a crimping step. In the spinning step, a parallel-type die, or a sheath-core type die having a low-melting-point component as a sheath component and a high-melting-point component as a core component, or an eccentric sheath-core type so that the low-melting-point component forms at least a part of the fiber surface. By spinning using a spinneret and a commonly used melt spinning machine, it is possible to obtain an undrawn thermoadhesive conjugate fiber. At this time, although the formation ratio of the low-melting-point component forming the fiber surface is small, the adhesive force is reasonable, but usually the adhesive force is sufficient when the fiber cross-sectional circumference is 50% or more, especially 50 to 100. % Is very strong and is preferable.
【００１２】延伸工程では、通常用いられる延伸機によ
り紡糸工程で得られた未延伸糸を延伸することによっ
て、延伸糸（捲縮加工前の熱接着性複合繊維）とするこ
とができる。このとき、低融点成分の融点より低い温度
条件下で、ヤング率が１００ｋｇｆ／ｍｍ2以上となる
ような任意の延伸倍率の条件で延伸を行う。なお、通常
の場合、延伸倍率は２〜６倍で行う。この工程で、延伸
糸のヤング率を１００ｋｇｆ／ｍｍ2以上とすることに
よって、延伸工程後の捲縮加工工程が容易となり、捲縮
のセット力を任意の強さに変えることができる。In the drawing step, the undrawn yarn obtained in the spinning step is drawn by a commonly used drawing machine to obtain a drawn yarn (thermo-adhesive conjugate fiber before crimping). At this time, the film is stretched under a temperature condition lower than the melting point of the low melting point component and under an arbitrary stretching ratio such that the Young's modulus becomes 100 kgf / mm 2 or more. In addition, in normal cases, the stretching is performed at 2 to 6 times. In this step, by setting the Young's modulus of the drawn yarn to 100 kgf / mm 2 or more, the crimping step after the drawing step becomes easy, and the crimp setting force can be changed to an arbitrary strength.
【００１３】捲縮加工工程では、通常用いられる捲縮加
工機（クリンパー）により延伸工程で得られた延伸糸に
捲縮が付与され、本発明の熱接着性複合繊維として用い
られる。本発明の熱接着性複合繊維の捲縮数は、特に限
定されるものではないが、好ましくは、捲縮数が５〜３
０山／２５ｍｍである。捲縮数が５山／２５ｍｍ未満で
も、高吸水性樹脂の剥離や脱落防止効果は得られるが、
繊維集合体の嵩が発現しにくい。また、捲縮数が３０山
／２５ｍｍを著しく越えても高吸水性樹脂の剥離や脱落
防止効果は得られるが、繊維集合体への加工性が著しく
低下する。さらに、捲縮数が５〜３０山／２５ｍｍであ
ると熱接着性複合繊維に好ましいサイズ及び形状の湾曲
した部位が発現し、その湾曲部に高吸水性樹脂が取り込
まれやすくなり、より好ましい高吸水性樹脂の剥離や脱
落を防止することができる。また、捲縮形状は、機械を
用いた機械捲縮でも、複合繊維自身の顕在及び潜在捲縮
でも特に問題はなく、本発明の効果を得ることができ
る。In the crimping step, the drawn yarn obtained in the drawing step is crimped by a commonly used crimping machine (crimper) and used as the heat-adhesive conjugate fiber of the present invention. The number of crimps of the heat-adhesive conjugate fiber of the present invention is not particularly limited, but preferably the number of crimps is 5 to 3
0 peaks / 25 mm. Even if the number of crimps is less than 5 peaks / 25 mm, the effect of preventing peeling and falling off of the superabsorbent resin can be obtained,
The bulk of the fiber aggregate is hardly developed. Further, even if the number of crimps exceeds 30 peaks / 25 mm, the effect of preventing the superabsorbent resin from peeling off and falling off can be obtained, but the processability of the fiber assembly is significantly reduced. Further, when the number of crimps is 5 to 30 crests / 25 mm, a curved portion having a preferred size and shape is developed in the heat-adhesive conjugate fiber, and the highly water-absorbent resin is easily taken into the curved portion, so that a more desirable high It is possible to prevent the water-absorbent resin from peeling or falling off. Regarding the crimped shape, there is no particular problem whether it is mechanical crimping using a machine, or the manifestation and latent crimp of the conjugate fiber itself, and the effects of the present invention can be obtained.
【００１４】本発明の熱接着性複合繊維の繊維長は、特
に限定されず、各種繊維集合体加工方法に適した繊維長
に、任意の長さとすることができる。好ましくは、繊維
集合体若しくは不織布内部の熱接着性複合繊維の構成状
態及び繊維集合体または、不織布への加工性の点から繊
維長３〜１００ｍｍに切断して用いることが望ましい。The fiber length of the heat-adhesive conjugate fiber of the present invention is not particularly limited, and can be any length suitable for various fiber assembly processing methods. Preferably, the fiber aggregate or the non-woven fabric is desirably cut to a fiber length of 3 to 100 mm in view of the configuration of the heat-adhesive conjugate fiber and the processability of the fiber aggregate or the nonwoven fabric.
【００１５】本発明の熱接着性複合繊維の単糸繊度は、
高吸水性樹脂との混合や、混綿、加工性を考慮して０．
５〜５０デニールの範囲となることが必要である。より
好ましくは０．５〜１０デニールである。単糸繊度が
０．５デニールを大きく下回ると、繊維間の絡みが大き
くなり、均一な地合とすることが難しく、５０デニール
を大きく上回ると、繊維間の絡みが小さくなり、均一な
地合とすることが難しくなる。また、繊維集合体とする
ときに、繊維集合体内の空隙空間が大きくなり、高吸水
性樹脂が空隙空間内部を通過しやすくなるため、繊維表
面に定着し難くなる。The single-filament fineness of the heat-adhesive conjugate fiber of the present invention is as follows:
In consideration of mixing with superabsorbent resin, cotton blending, and workability, 0.
It needs to be in the range of 5 to 50 denier. More preferably, it is 0.5 to 10 denier. If the single yarn fineness is significantly lower than 0.5 denier, the entanglement between the fibers becomes large and it is difficult to obtain a uniform formation. If it exceeds 50 denier, the entanglement between the fibers becomes small and the uniform formation becomes impossible. It becomes difficult to do. Further, when forming a fiber aggregate, the void space in the fiber aggregate becomes large, and the superabsorbent resin easily passes through the inside of the void space, so that it becomes difficult to fix on the fiber surface.
【００１６】本発明の繊維集合体は、少なくとも前記条
件により得られた熱接着性複合繊維と高吸水性樹脂から
構成されている。高吸水性樹脂とは、水溶性高分子を僅
かに架橋した三次元網目構造を持つポリマーで、通常、
数百から千倍の吸水性を示すものであり、形状は破砕状
態、パール状態等の粉末状のものや、繊維状のもの等が
ある。高吸水性樹脂の組成としては、ポリアクリル酸塩
系、デンプン系およびアクリル−デンプン系が一般的に
主流であるが、これ以外にもセルロース系のものもあ
る。本発明においては、これらのどの種の高吸水性樹脂
を用いても何ら不都合がないが、デンプン系、セルロー
ス系の天然素材を生かした物が好ましく用いられる。こ
の他に、他の繊維、例えばパルプ、レーヨンを混入させ
ることは何等妨げとはならず、適宜必要に応じて混合し
てもよい。熱接着性複合繊維と高吸水性樹脂の混合比率
に関しては、特に限定されるものではないが、繊維集合
体を形成する本発明の熱接着性複合繊維の全表面積以上
には高吸水性樹脂が接着しないため、必然的にそれ以下
の混合比となり、好ましくは繊維集合体を形成する本発
明の熱接着性複合繊維の混合比は、全表面積の半分以下
とすることが望ましく、高吸水性樹脂が少ない分につい
ては何ら問題がない。The fiber aggregate of the present invention comprises at least the heat-adhesive conjugate fiber obtained under the above conditions and a highly water-absorbing resin. Superabsorbent resin is a polymer with a three-dimensional network structure in which a water-soluble polymer is slightly cross-linked.
It exhibits a water absorption of several hundreds to a thousand times, and may be in the form of powder such as crushed or pearl, or fibrous. As the composition of the superabsorbent resin, polyacrylate, starch and acryl-starch are generally predominant, but there are also cellulose-based resins. In the present invention, there is no disadvantage even if any of these types of superabsorbent resins is used, but those utilizing a starch-based or cellulose-based natural material are preferably used. In addition to this, mixing other fibers such as pulp and rayon does not hinder at all, and may be appropriately mixed as needed. The mixing ratio of the heat-adhesive conjugate fiber and the superabsorbent resin is not particularly limited, but the superabsorbent resin is not less than the total surface area of the heat-adhesive conjugate fiber of the present invention forming a fiber aggregate. In order not to adhere, the mixing ratio is necessarily lower than that, preferably the mixing ratio of the heat-adhesive conjugate fiber of the present invention forming a fiber aggregate is preferably not more than half of the total surface area, There is no problem for the small amount.
【００１７】熱接着性複合繊維と高吸水性樹脂の混合さ
れた繊維集合体の製造方法は特に限定されるものではな
いが、好ましくは、エアレイド法により行うことが望ま
しい。カーディング法では熱接着性複合繊維と高吸水性
樹脂の混合が困難であるため繊維集合体中の高吸水性樹
脂の偏りが発現しやすく、繊維集合体内部全体に均一に
分散させることが難しくなり、吸水性の偏りが見られた
り風合いの良好な不織布とすることが容易に得られにく
い。しかし、エアレイド法を用いることによって容易に
吸水性が良好で風合いが良好な不織布とすることができ
る。The method for producing the fiber aggregate in which the heat-adhesive conjugate fiber and the superabsorbent resin are mixed is not particularly limited, but it is preferable to carry out the air-laid method. In the carding method, it is difficult to mix the heat-adhesive conjugate fiber and the superabsorbent resin, so that the bias of the superabsorbent resin in the fiber assembly is likely to occur, and it is difficult to uniformly disperse the entire fiber assembly. Therefore, it is difficult to easily obtain a nonwoven fabric having a non-uniformity in water absorption or a good texture. However, by using the airlaid method, a nonwoven fabric having good water absorption and good texture can be easily obtained.
【００１８】エアレイド法とは、短繊維を用いて、以下
の手順で繊維集合体とする方法である。まず、本発明で
用いられる熱接着性複合繊維が短く切断された短繊維を
開繊機に投入し、機械的に開繊させ、送綿循環ダクトへ
送る。同時に高吸水性樹脂を送綿循環ダクトへ送る。送
綿循環ダクト内で、熱融着性複合繊維と高吸水性樹脂が
混合され、エアレイド機を通過することによって、繊維
集合体となる。また、繊維集合体とした後に、さらに高
吸水性樹脂を繊維集合体に積層させることも可能であ
る。エアレイド機には種々の形態のものが有るが、代表
的にはドラム状のスクリーン部位より混合された繊維状
物を降ろし、サクション装置で吸引させ、積層させ、繊
維集合体とする。ここで言うスクリーン部位とは、丸や
四角のような形状の孔を有するメッシュのことである。
積層された繊維集合体（以下、積層繊維集合体と略すこ
とがある）中における熱接着性複合繊維は、何れの方向
にもランダムに分散されている。従って、繊維状物を降
ろして積層することによって、従来の混綿不織布より繊
維集合体の嵩を高くすることができる。更には、熱処理
を施すことによって嵩高な不織布とすることができる。
また、熱接着性複合繊維及び高吸水性樹脂が不織布内部
に均一に分散されていることによって、不織布中に接合
点がほぼ均一に存在し、熱接着性複合繊維間さらには熱
接着性複合繊維と高吸水性樹脂間の接着状態が良好にな
る。従って、不織布強度は一方向への偏りがなくなり全
体的な不織布強度が向上し、吸水性についても一方向へ
の偏りがなくなり吸水性が向上する。The air laid method is a method in which short fibers are used to form a fiber aggregate by the following procedure. First, the short fiber obtained by cutting the heat-adhesive conjugate fiber used in the present invention into a short length is put into a fiber opening machine, mechanically opened, and sent to a cotton feeding circulation duct. At the same time, the superabsorbent resin is sent to the cotton circulation duct. In the cotton feeding circulation duct, the heat-fusible conjugate fiber and the superabsorbent resin are mixed and pass through an air laid machine to form a fiber aggregate. Further, after forming the fiber assembly, it is also possible to further laminate a superabsorbent resin on the fiber assembly. There are various types of air laid machines. Typically, a mixed fibrous material is dropped from a drum-shaped screen portion, suctioned by a suction device, and laminated to form a fiber aggregate. The screen part referred to here is a mesh having holes in a shape such as a circle or a square.
The heat-adhesive conjugate fibers in the laminated fiber aggregate (hereinafter sometimes abbreviated as a laminated fiber aggregate) are randomly dispersed in any direction. Therefore, by lowering and laminating the fibrous material, the bulk of the fiber aggregate can be made higher than that of the conventional mixed cotton nonwoven fabric. Furthermore, a bulky nonwoven fabric can be obtained by performing a heat treatment.
In addition, since the heat-adhesive conjugate fibers and the superabsorbent resin are uniformly dispersed in the non-woven fabric, the bonding points are almost uniformly present in the non-woven fabric, and the heat-adhesive conjugate fibers are further interposed between the heat-adhesive conjugate fibers. And the superabsorbent resin have good adhesion. Accordingly, the strength of the nonwoven fabric is not deviated in one direction, and the overall strength of the nonwoven fabric is improved, and the water absorption is not deviated in one direction, and the water absorption is improved.
【００１９】本発明の不織布は、前記で得られた繊維集
合体および積層繊維集合体を加熱処理し、不織布とする
方法や、スパンボンド、メルトブロー等の長繊維を用い
て不織布とする方法がある。前記で得られた繊維集合体
および積層繊維集合体を加熱処理し、不織布とする方法
としては、熱風ドライヤー，サクションバンドドライヤ
ー等の方法が挙げられる。加熱処理を施すことによっ
て、熱接着性複合繊維の低融点成分が溶融し熱接着性複
合繊維同士若しくはそれと高吸水性樹脂との接点とが熱
接着され、接合効果に優れた不織布となる。交点が多く
なるほど不織布が強固となり、該熱接着性複合繊維と高
吸水性樹脂の両者の剥離および脱落が防止され不織布自
体の強度も向上する。該熱処理温度は、熱接着性複合繊
維の低融点成分の融点以上、高融点成分の融点以下の温
度で、処理を行う。目付および熱融着させる方法等に合
わせて、熱処理時間は任意の処理時間で行う。スパンボ
ンド、メルトブロー等の長繊維を用いて不織布とする方
法としては、溶融紡糸後、熱処理を施す前に高吸水性樹
脂を降らす等の手法で積層もしくは混合させ、熱処理を
行うことによって、熱接着性複合繊維表面上に高吸水性
樹脂を接着させる。熱処理方法、時間、温度に関して
は、前記条件で行うことができる。The nonwoven fabric of the present invention includes a method of heat-treating the fiber assembly and the laminated fiber assembly obtained as described above to form a nonwoven fabric, and a method of forming a nonwoven fabric using long fibers such as spunbond and meltblown. . Examples of the method of heat-treating the fiber assembly and the laminated fiber assembly obtained above to form a nonwoven fabric include a hot-air dryer, a suction band dryer, and the like. By performing the heat treatment, the low-melting-point component of the heat-adhesive conjugate fibers is melted, and the heat-adhesive conjugate fibers or the contact points between the heat-adhesive conjugate fibers and the highly water-absorbent resin are heat-bonded to form a nonwoven fabric excellent in bonding effect. As the number of intersections increases, the nonwoven fabric becomes stronger, the peeling and falling off of the thermoadhesive conjugate fiber and the superabsorbent resin are prevented, and the strength of the nonwoven fabric itself is improved. The heat treatment is carried out at a temperature not lower than the melting point of the low melting point component and not higher than the melting point of the high melting point component of the heat-adhesive conjugate fiber. The heat treatment time is an arbitrary treatment time according to the basis weight and the method of heat fusion. As a method of forming a nonwoven fabric using long fibers such as spunbond and melt blow, lamination or mixing is performed by a method such as dropping the superabsorbent resin after melt spinning and before performing heat treatment, and heat bonding is performed. The superabsorbent resin is adhered on the surface of the conductive composite fiber. The heat treatment method, time, and temperature can be performed under the above conditions.
【００２０】また上記不織布を得た後に、熱プレス機ま
たはコンベアー式熱プレス機等を用いて熱処理すること
により、所望の厚さの不織布を得ることもでき、また必
要に応じて熱処理時および熱処理後に二次加工すること
もでき、平板だけでなく任意形状が可能となる。After the above nonwoven fabric is obtained, the nonwoven fabric having a desired thickness can be obtained by heat treatment using a hot press machine or a conveyor type hot press machine. Secondary processing can be performed later, and not only a flat plate but also an arbitrary shape becomes possible.
【００２１】本発明の繊維集合体の一成分である熱接着
性複合繊維は、前記の如くその分子中に極性基を有し、
繊維表面にその極性基が出ているため高吸水性樹脂と混
合、熱処理することによって、両者は親和性が大きく強
力に接着する。このため、本発明の熱接着性複合繊維を
用いた不織布は、二次加工中において高吸水性樹脂との
剥離または脱落が起こり難い。即ち、本発明の熱接着性
複合繊維は、化学的な接着を発現するので、従来の繊維
の溶融による高吸水性樹脂の包み込むような物理的接着
を低減させることができるため、吸水性も向上する。The heat-adhesive conjugate fiber which is one component of the fiber aggregate of the present invention has a polar group in its molecule as described above,
Since the polar group is exposed on the fiber surface, by mixing with a superabsorbent resin and heat-treating, the two have high affinity and strongly adhere. For this reason, the nonwoven fabric using the heat-adhesive conjugate fiber of the present invention hardly peels off or falls off from the superabsorbent resin during the secondary processing. That is, since the heat-adhesive conjugate fiber of the present invention exhibits chemical adhesion, it is possible to reduce physical adhesion such as wrapping of a highly water-absorbent resin due to melting of the conventional fiber, so that water absorption is also improved. I do.
【００２２】更に本発明の熱接着性複合繊維を用いた繊
維集合体または不織布は、他の繊維集合体、若しくは、
他のシートを積層し、積層複合化不織布とすることがで
きる。シートとしては、編織物，不織布，発泡ウレタ
ン，フィルム，紙状物，羊毛成形体，金属板，木板，プ
ラスチック板や、好ましくは官能基を有する他素材など
が例示でき、それぞれの機能を維持できる。例えば、熱
接着性複合繊維の単独あるいは親水性繊維と熱接着性複
合繊維とを混合した不織布を積層してもよい。本発明の
効果を妨げない範囲において他のものをラミネートする
ことは何等妨げるものではない。本発明の積層複合化不
織布の目付は、使用目的や製造方法に合わせて任意の目
付として使用できる。Further, the fiber aggregate or non-woven fabric using the heat-adhesive conjugate fiber of the present invention may be a fiber aggregate or a non-woven fabric.
Other sheets can be laminated to form a laminated composite nonwoven fabric. Examples of the sheet include a knitted fabric, a nonwoven fabric, a urethane foam, a film, a paper-like material, a wool molded product, a metal plate, a wood plate, a plastic plate, and preferably other materials having a functional group. . For example, a nonwoven fabric made of a single heat-adhesive composite fiber or a mixture of a hydrophilic fiber and a heat-adhesive composite fiber may be laminated. Laminating other materials within the range that does not impair the effects of the present invention does not hinder at all. The basis weight of the laminated composite nonwoven fabric of the present invention can be arbitrarily used according to the purpose of use and the production method.
【００２３】前記不織布は、種々の用途において使用す
ることが可能であるが、高吸水性樹脂と混合使用を行う
ため、高吸水性樹脂の特徴を引き出す用途として、ワイ
パーや液体保持マット例えばオムツの吸収体等に好まし
く用いることができる。The non-woven fabric can be used in various applications. However, since the non-woven fabric is mixed with a highly water-absorbent resin, it can be used as a wiper or a liquid holding mat, for example, a diaper. It can be preferably used for an absorber or the like.
【００２４】[0024]
【実施例】以下、実施例により本発明を説明するが、本
発明はこれらの実施例に限定されるものではない。な
お、実施例中に示された物性値の測定法または定義をま
とめて示しておく。 捲縮数：JIS-L-1015に準じて測定した。 単糸繊度：JIS-L-1015に準じて測定した。 目標目付：熱接着性繊維と高吸水性樹脂が完全に分離す
ることなく接着した場合の計算による、単位面積あたり
の重量（ｇ／ｍ2）。 実測目付：不織布を50ｃｍ角に切った成形体全体（熱接
着性繊維、高吸水性樹脂）の重量を秤量し、単位面積当
たりの重量（ｇ／ｍ2）で表わした。 比容積：目付を測定したサンプルの厚み（ｍｍ）と、以
下の式より算出した。 比容積（ｃｃ／ｇ）＝厚み（ｍｍ）／目付（ｇ／ｍ2）
×１０００ 混合比：目標目付における理論上の熱接着性繊維の目付
（Ｘ１）と理論上の高吸水性樹脂の目付（Ｘ２）との
比。 接着率：15ｃｍ角に切った成形体をカード機のフライコ
ム部に取り付け、振幅３ｃｍ、振幅回数１７００ｒｐ
ｍ．の条件で３分間振動させた後の重量（Ｗ１）を測定
し、その不織布の理論目付中の混綿比を用いて次式より
算出した。 ｛（Ｗ１／０．００２５）−Ｘ１｝÷Ｘ２×１００＝接
着率（％） 吸水度：15cm角に切った成形体の重量（Ｗ１）を測定
し、イオン交換水に全体を１０分間浸し、持ち上げた後
水滴が落ちなくなるまで放置（約１０分）し、その後の
重量（Ｗ２）を測定し、次式より算出した。測定室条件
は、温度２５℃、湿度５０％とした。 Ｗ２÷Ｗ１＝吸水度（倍）EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. In addition, the measuring method or definition of the physical property value shown in the Example is collectively shown. Number of crimps: Measured according to JIS-L-1015. Single yarn fineness: measured according to JIS-L-1015. Target basis weight: Weight per unit area (g / m 2 ) calculated by bonding when the thermoadhesive fiber and the superabsorbent resin are adhered without being completely separated. Actual measurement weight: The weight of the whole molded article (heat-adhesive fiber, high water-absorbent resin) obtained by cutting a nonwoven fabric into 50 cm squares was weighed and expressed as a weight per unit area (g / m 2 ). Specific volume: It was calculated from the thickness (mm) of the sample whose basis weight was measured and the following formula. Specific volume (cc / g) = thickness (mm) / basis weight (g / m 2 )
× 1000 mixing ratio: ratio of the theoretical basis weight of the heat-adhesive fiber (X1) to the theoretical basis weight of the superabsorbent resin (X2) at the target basis weight. Adhesion rate: A molded product cut into a 15 cm square was attached to the flycomb part of a card machine, with an amplitude of 3 cm and an amplitude frequency of 1700 rpm.
m. The weight (W1) after being vibrated for 3 minutes under the above conditions was measured, and was calculated from the following equation using the cotton mixing ratio in the theoretical basis weight of the nonwoven fabric. ｛(W1 / 0.0025) -X1｝ ÷ X2 × 100 = adhesion rate (%) Water absorption: The weight (W1) of the molded body cut into 15 cm square was measured, and the whole was immersed in ion-exchanged water for 10 minutes. After being lifted, it was allowed to stand (about 10 minutes) until water drops did not drop, and the weight (W2) was measured and calculated by the following equation. The measurement room conditions were a temperature of 25 ° C. and a humidity of 50%. W2 ÷ W1 = water absorption (times)
【００２５】実施例１〜７、比較例１〜３ 表１に示す、低融点成分と高融点成分を使用し、鞘芯型
若しくは並列型紡糸口金を用いて複合繊維を紡糸し、表
１に示す条件で延伸し、更に表１に示した所定の繊維長
にカットし、表２に示す不織布の製造条件に適合した熱
接着性複合繊維を得た。これらの条件及び物性を表１に
示した。Examples 1 to 7 and Comparative Examples 1 to 3 Using the low melting point component and the high melting point component shown in Table 1, conjugate fibers were spun using a sheath-core or parallel type spinneret. It was stretched under the conditions shown and further cut to the predetermined fiber length shown in Table 1 to obtain a heat-adhesive conjugate fiber suitable for the production conditions of the nonwoven fabric shown in Table 2. Table 1 shows these conditions and physical properties.
【００２６】[0026]
【表１】 [Table 1]
【００２７】所定の繊維長にカットした熱接着性複合繊
維と高吸水性樹脂を用いて、表２に示した混合比、目付
及び不織布製法で繊維集合体とし、スルーエアー加工機
を用いて表２中に記載の加工温度で熱処理を行ない不織
布とした。但し、高吸水性樹脂の混合方法は、エアレイ
ド法では繊維集合体の製造時に同時に混ぜて、カーディ
ング法では繊維集合体とした後に、均一に高吸水性樹脂
を分散させ積層させた。ここで言う高吸水性樹脂とは、
日本触媒化学工業株式会社製 アクアリックＣＡ Ｗ−
４（商品名）を使用した。Using a heat-adhesive conjugate fiber cut to a predetermined fiber length and a highly water-absorbent resin, a fiber aggregate was prepared by a mixing ratio, a basis weight and a nonwoven fabric manufacturing method shown in Table 2, and the fiber aggregate was formed using a through-air processing machine. Heat treatment was performed at the processing temperature described in 2 to obtain a nonwoven fabric. However, as a method of mixing the superabsorbent resin, the air-laid method was such that the superabsorbent resin was mixed at the same time as the production of the fiber assembly, and the carding method was used to form the fiber assembly, and then the superabsorbent resin was uniformly dispersed and laminated. Here, the superabsorbent resin is
AQUALIC CA W- manufactured by Nippon Shokubai Chemical Co., Ltd.
4 (trade name) was used.
【００２８】[0028]
【表２】 [Table 2]
【００２９】実施例８ スパンボンド法で紡糸を行った以外は、表１中の（１）
と同ポリマーおよび同条件で紡糸を行って、表２中の条
件でスパンボンド不織布とし、熱処理前に高吸水性樹脂
を積層させた。ここで言う高吸水性樹脂とは、日本触媒
化学工業株式会社製 アクアリックＣＡ Ｗ−４（商品
名）を使用した。Example 8 (1) in Table 1 except that spinning was carried out by the spun bond method.
Spinning was performed under the same polymer and under the same conditions as in Example 1 to obtain a spunbond nonwoven fabric under the conditions shown in Table 2, and a superabsorbent resin was laminated before the heat treatment. As the superabsorbent resin referred to here, Aqualic CA W-4 (trade name) manufactured by Nippon Shokubai Chemical Industry Co., Ltd. was used.
【００３０】比較例４ スパンボンド法で紡糸を行った以外は、表１中の（８）
と同ポリマーおよび同条件で紡糸を行って、表２中の条
件でスパンボンド不織布とし、熱処理前に高吸水性樹脂
を積層させた。ここで言う高吸水性樹脂とは、日本触媒
化学工業株式会社製 アクアリックＣＡ Ｗ−４（商品
名）を使用した。Comparative Example 4 (8) in Table 1 except that spinning was performed by the spun bond method.
Spinning was performed under the same polymer and under the same conditions as in Example 1 to obtain a spunbond nonwoven fabric under the conditions shown in Table 2, and a superabsorbent resin was laminated before the heat treatment. As the superabsorbent resin referred to here, Aqualic CA W-4 (trade name) manufactured by Nippon Shokubai Chemical Industry Co., Ltd. was used.
【００３１】実施各例及び比較各例で得られた不織布を
用いて接着率及び吸水度を測定し、その結果を表３に示
した。Using the nonwoven fabric obtained in each of the examples and comparative examples, the adhesion ratio and the water absorption were measured, and the results are shown in Table 3.
【００３２】[0032]
【表３】 [Table 3]
【００３３】実施例９ 実施例１の不織布を１０ｃｍ×２５ｃｍのサイズにカッ
トし、カットした不織布全体をティッシュで包み、紙お
むつ用吸収体とした。Example 9 The nonwoven fabric of Example 1 was cut into a size of 10 cm × 25 cm, and the whole cut nonwoven fabric was wrapped with tissue to obtain an absorbent for a disposable diaper.
【００３４】実施例１０ 実施例２の不織布を１０ｃｍ×２５ｃｍのサイズにカッ
トし、同サイズのスパンボンド不織布と積層し、１３８
℃でスルーエアー熱処理を施してティッシュで包み、紙
おむつ用吸収体とした。Example 10 The nonwoven fabric of Example 2 was cut into a size of 10 cm × 25 cm, laminated with a spunbonded nonwoven fabric of the same size, and 138
A through-air heat treatment was performed at ° C and the tissue was wrapped with a tissue to obtain an absorbent for a disposable diaper.
【００３５】実施例１１ 実施例３の不織布を１０ｃｍ×１０ｃｍのサイズにカッ
トし、同サイズのポリオレフィンからなる目付５０ｇ／
ｍ2のカーディングウェブと積層し、１３８℃でスルー
エアー熱処理を施して、ワイパーとした。Example 11 The non-woven fabric of Example 3 was cut into a size of 10 cm × 10 cm, and a basis weight of 50 g /
It was laminated with an m 2 carding web and subjected to through-air heat treatment at 138 ° C. to form a wiper.
【００３６】比較例５ 比較例１の不織布を１０ｃｍ×２５ｃｍのサイズにカッ
トし、カットした不織布全体をティッシュで包み、紙お
むつ用吸収体とした。Comparative Example 5 The nonwoven fabric of Comparative Example 1 was cut into a size of 10 cm × 25 cm, and the whole cut nonwoven fabric was wrapped with a tissue to obtain an absorbent for a disposable diaper.
【００３７】比較例６ 比較例１の不織布を１０ｃｍ×２５ｃｍのサイズにカッ
トし、同サイズのスパンボンド不織布と積層し、１３８
℃でスルーエアー熱処理を施してティッシュで包み、紙
おむつ用吸収体とした。Comparative Example 6 The nonwoven fabric of Comparative Example 1 was cut into a size of 10 cm × 25 cm, laminated with a spunbonded nonwoven fabric of the same size, and 138
A through-air heat treatment was performed at ° C and the tissue was wrapped with a tissue to obtain an absorbent for a disposable diaper.
【００３８】比較例７ 比較例２の不織布を１０ｃｍ×１０ｃｍのサイズにカッ
トし、同サイズのポリオレフィンからなる目付５０ｇ／
ｍ2のカーディングウェブと積層し、１３８℃でスルー
エアー熱処理を施して、ワイパーとした。Comparative Example 7 The non-woven fabric of Comparative Example 2 was cut into a size of 10 cm × 10 cm, and a basis weight of 50 g /
It was laminated with an m 2 carding web and subjected to through-air heat treatment at 138 ° C. to form a wiper.
【００３９】表３から明らかな通り、本発明の熱接着性
複合繊維は高吸水性樹脂との接着性に優れるとともに、
吸水性がまさっていることが明らかである。比較例１、
２、３は、熱接着繊維の低融点成分に変成基を有してい
ないため、高吸水性樹脂との接着が悪く、更には不織布
中の高吸水性樹脂の脱落が多いため、不織布としての吸
水性が大きく低下している。即ち、これらの実施例、比
較例は、接着性に優れた特定構造の変成ポリマーを繊維
表面に有し、適正範囲に単糸繊度及び捲縮がコントロー
ルされた複合繊維と高吸水性樹脂をより均一に混合する
ことにより、初めて高吸水性樹脂の脱落率が小さく、且
つ吸水性能の高い良好な不織布を得られることを示して
いる。また、特にエアレイド法を用いることによって均
一性が更に向上し、不織布の内部にまで高吸水性樹脂を
取り込んでいるため、より脱落率が低下し、吸水性能が
良好となることを示している。As is evident from Table 3, the heat-adhesive conjugate fiber of the present invention has excellent adhesiveness with a superabsorbent resin,
It is clear that the water absorption is superior. Comparative Example 1,
Nos. 2 and 3 do not have a denaturing group in the low-melting-point component of the heat-bonding fiber, and therefore have poor adhesion to the superabsorbent resin. The water absorption is greatly reduced. That is, these Examples and Comparative Examples have a modified polymer having a specific structure excellent in adhesiveness on the fiber surface, and a single fiber fineness and crimp are controlled in an appropriate range. This shows that uniform mixing can provide, for the first time, a good nonwoven fabric with a low water-absorbing resin falling rate and high water-absorbing performance. In addition, it shows that the uniformity is further improved particularly by using the airlaid method, and that the highly water-absorbent resin is incorporated into the nonwoven fabric, so that the dropout rate is further reduced and the water absorption performance is improved.
【００４０】実施例９，１０と比較例５，６を比較する
と、実施例９，１０は本発明の熱接着性複合繊維と高吸
水性樹脂の接着性が比較例５，６より良好であるため、
吸収体への二次加工時や運搬時での高吸水性樹脂の脱落
を低下できるため、不織布加工後も良好な吸水性を示
す。従って、吸収体として用いると、充分に高吸水性樹
脂の性能を発揮させることができるため、吸収体の吸収
性能が著しく向上できた。また、水分等を吸収した後、
吸収体の形状を維持する効果も高い。When Examples 9 and 10 are compared with Comparative Examples 5 and 6, Examples 9 and 10 show that the adhesiveness between the heat-adhesive conjugate fiber of the present invention and the superabsorbent resin is better than Comparative Examples 5 and 6. For,
Since the falling off of the highly water-absorbent resin during the secondary processing or transportation to the absorbent body can be reduced, it shows good water absorption even after processing the nonwoven fabric. Therefore, when used as an absorber, the performance of the superabsorbent resin can be sufficiently exhibited, so that the absorption performance of the absorber could be significantly improved. Also, after absorbing moisture etc.
The effect of maintaining the shape of the absorber is also high.
【００４１】実施例１１と比較例７を比較すると、実施
例１１は熱接着性複合繊維と高吸水性樹脂の接着性が比
較例７より良好であるため、ワイパーとして使用した時
の保水効果が高く、更には高吸水性樹脂の脱落を低下で
きるため、吹き上げた後の高吸水性樹脂の脱落・飛散が
低下できる。また、水分等を吸収した後、吸収体の形状
を維持する効果も高く、使用前後における感触の変化も
少ない。Comparison between Example 11 and Comparative Example 7 shows that Example 11 has a better water-retaining effect when used as a wiper because the adhesiveness between the heat-adhesive conjugate fiber and the superabsorbent resin is better than Comparative Example 7. It is possible to reduce the falling of the superabsorbent resin, and further, the falling off and scattering of the superabsorbent resin after blowing can be reduced. Further, after absorbing moisture and the like, the effect of maintaining the shape of the absorber is high, and the change in feel before and after use is small.
【００４２】[0042]
【本発明の効果】本発明の熱接着性複合繊維は高吸水性
樹脂と混合し、熱処理を施すことによって、両者は強力
に接着するため二次加工時や不織布使用時での高吸水性
樹脂の剥離や脱落がほとんどなく、作業性や使用時の快
適性が著しく向上する。また、衛生材料、ワイパー等の
吸収体として使用した場合、従来の不織布と比較して極
めて優れた吸収効果を示す。According to the present invention, the heat-adhesive conjugate fiber of the present invention is mixed with a highly water-absorbent resin and subjected to a heat treatment. There is almost no peeling or falling off, and workability and comfort during use are significantly improved. In addition, when used as an absorbent such as a sanitary material or a wiper, it exhibits an extremely excellent absorption effect as compared with a conventional nonwoven fabric.
フロントページの続き Ｆターム(参考） 3B074 AA08 AC03 4L041 AA07 BA02 BA05 BA09 BA21 BA46 BA48 BA49 BA59 BC02 BD03 BD07 BD11 BD20 CA06 CA36 CA38 CA63 DD01 DD05 DD14 4L047 AA14 AA27 AB02 AB07 AB09 BA05 BA09 BA23 BB09 CA05 CA19 CB07 CC04 CC16 Continued on the front page F term (reference) 3B074 AA08 AC03 4L041 AA07 BA02 BA05 BA09 BA21 BA46 BA48 BA49 BA59 BC02 BD03 BD07 BD11 BD20 CA06 CA36 CA38 CA63 DD01 DD05 DD14 4L047 AA14 AA27 AB02 AB07 AB09 BA05 BA09 BA23 CB09 CC05 CC
Claims (10)
からなる繊維と併用して用いられる熱接着性複合繊維で
あって、該熱接着性複合繊維は不飽和カルボン酸および
不飽和カルボン酸無水物から選ばれた少なくとも１種を
含むビニルモノマー（以下これらを変成剤と云うことが
ある）でグラフト重合された変成ポリオレフィン（変成
剤含量は０．０５〜２モル／Ｋｇ）で構成される低融点
成分と、該低融点成分より１５℃以上高い融点を有する
高融点成分とからなる熱接着性複合繊維であって、該低
融点成分は該熱接着性複合繊維表面の少なくとも一部を
長さ方向に連続して形成しており、且つ該熱接着性複合
繊維は単糸繊度０．５〜５０デニールであることを特徴
とする熱接着性複合繊維。1. A thermoadhesive conjugate fiber used in combination with a superabsorbent resin powder or a fiber comprising a superabsorbent resin, wherein the thermoadhesive conjugate fiber is an unsaturated carboxylic acid and an unsaturated carboxylic anhydride. Composed of a modified polyolefin (conversion agent content: 0.05 to 2 mol / Kg) graft-polymerized with a vinyl monomer containing at least one selected from the group consisting of: A heat-adhesive conjugate fiber comprising a melting point component and a high-melting point component having a melting point higher by 15 ° C. or more than the low-melting point component, wherein the low-melting point component extends at least a portion of the surface of the heat-adhesive conjugate fiber. The heat-adhesive conjugate fiber is formed continuously in the direction, and has a single yarn fineness of 0.5 to 50 denier.
びメタクリル酸から選ばれた少なくとも１種以上を含む
変成剤である請求項１に記載の熱接着性複合繊維。2. The heat-adhesive conjugate fiber according to claim 1, wherein the denaturing agent is a denaturing agent containing at least one selected from maleic anhydride, acrylic acid and methacrylic acid.
構成された変成剤である請求項１に記載の熱接着性複合
繊維。3. The heat-adhesive conjugate fiber according to claim 1, wherein the modifier is a modifier composed of maleic anhydride and styrene.
エステル若しくはメタクリル酸エステルの１種以上から
構成された変成剤である請求項１に記載の熱接着性複合
繊維。4. The heat-adhesive conjugate fiber according to claim 1, wherein the denaturing agent is a denaturing agent composed of maleic anhydride and at least one of an acrylic ester or a methacrylic ester.
性複合繊維の捲縮数が５〜３０山／２５ｍｍ、且つ繊維
長が３〜１００ｍｍであることを特徴とする熱接着性複
合繊維。5. The heat-adhesive composite fiber according to claim 1, wherein the number of crimps is 5 to 30 ridges / 25 mm, and the fiber length is 3 to 100 mm. Composite fiber.
性複合繊維と高吸水性樹脂粉末もしくは高吸水性樹脂か
らなる繊維を混合した繊維または繊維集合体。6. A fiber or fiber aggregate obtained by mixing the heat-adhesive conjugate fiber according to any one of claims 1 to 5 and a fiber made of a superabsorbent resin powder or a superabsorbent resin.
繊維同士の交点又は繊維と高吸水性樹脂粉末もしくは高
吸水性樹脂からなる繊維の交点が接着された不織布。7. A nonwoven fabric in which the fiber aggregate according to claim 6 is heat-treated and the intersection of the fibers or the intersection of the fiber and the fiber made of the superabsorbent resin powder or the superabsorbent resin is bonded.
しくは不織布がエアレイド法で得られた繊維集合体もし
くは不織布である請求項６もしくは請求項７記載の繊維
集合体もしくは不織布。8. The fiber aggregate or nonwoven fabric according to claim 6 or 7, wherein the fiber aggregate or nonwoven fabric according to claim 6 or 7 is a fiber aggregate or nonwoven fabric obtained by an air laid method.
合体もしくは不織布と、他の繊維集合体もしくは不織布
を混合又は積層し、繊維同士の交点を熱接合して得られ
る複合化不織布。9. A composite obtained by mixing or laminating the fiber aggregate or nonwoven fabric according to any one of claims 6 to 8 with another fiber aggregate or nonwoven fabric and thermally bonding intersections of the fibers. Non-woven fabric.
集合体または不織布を用いたワイパー。10. A wiper using the fiber aggregate or the nonwoven fabric according to claim 6. Description:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21923599A JP2001049530A (en) | 1999-08-02 | 1999-08-02 | Thermo-adhesive conjugate fiber, non-woven fabric and processed non-woven fabric using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21923599A JP2001049530A (en) | 1999-08-02 | 1999-08-02 | Thermo-adhesive conjugate fiber, non-woven fabric and processed non-woven fabric using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001049530A true JP2001049530A (en) | 2001-02-20 |
Family
ID=16732338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21923599A Pending JP2001049530A (en) | 1999-08-02 | 1999-08-02 | Thermo-adhesive conjugate fiber, non-woven fabric and processed non-woven fabric using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001049530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007530712A (en) * | 2003-07-11 | 2007-11-01 | ダウ グローバル テクノロジーズ インコーポレイティド | Process for the production of functionalized polyolefins, composite fibers, nonwovens and hygiene absorbent products |
| EP2161361A4 (en) * | 2007-06-22 | 2011-04-27 | Uni Charm Corp | Nonwoven fabric and process for producing the same |
-
1999
- 1999-08-02 JP JP21923599A patent/JP2001049530A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007530712A (en) * | 2003-07-11 | 2007-11-01 | ダウ グローバル テクノロジーズ インコーポレイティド | Process for the production of functionalized polyolefins, composite fibers, nonwovens and hygiene absorbent products |
| KR101142724B1 (en) * | 2003-07-11 | 2012-05-04 | 다우 글로벌 테크놀로지스 엘엘씨 | Method for the manufacture of a functionalised polyolefin, functionalised polyolefin, bicomponent fiber, nonwoven and hygienic absorbent product |
| EP2161361A4 (en) * | 2007-06-22 | 2011-04-27 | Uni Charm Corp | Nonwoven fabric and process for producing the same |
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