JPH0716508B2 - Surface sheet of absorbent article - Google Patents
Surface sheet of absorbent articleInfo
- Publication number
- JPH0716508B2 JPH0716508B2 JP62176602A JP17660287A JPH0716508B2 JP H0716508 B2 JPH0716508 B2 JP H0716508B2 JP 62176602 A JP62176602 A JP 62176602A JP 17660287 A JP17660287 A JP 17660287A JP H0716508 B2 JPH0716508 B2 JP H0716508B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- layer
- fibers
- surface sheet
- back layer
- 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.)
- Expired - Lifetime
Links
- 230000002745 absorbent Effects 0.000 title claims description 11
- 239000002250 absorbent Substances 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims description 67
- 239000010410 layer Substances 0.000 claims description 51
- 239000002344 surface layer Substances 0.000 claims description 27
- 239000004698 Polyethylene Substances 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 210000001124 body fluid Anatomy 0.000 description 15
- 239000010839 body fluid Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 230000000740 bleeding effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 210000002700 urine Anatomy 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 206010021639 Incontinence Diseases 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 （１）発明の目的 〔産業上の利用分野〕 本発明は、吸収性物品の表面シートに関する。さらに詳
しくは、使用者の肌に接する表面を形成する、生理用ナ
プキン、使い捨ておむつ、失禁パッドなどの使い捨て吸
収性物品の表面シートに関する。DETAILED DESCRIPTION OF THE INVENTION (1) Purpose of the Invention [Field of Industrial Application] The present invention relates to a topsheet of an absorbent article. More specifically, the present invention relates to a surface sheet of a disposable absorbent article, such as a sanitary napkin, a disposable diaper, an incontinence pad, which forms a surface in contact with a user's skin.
一般にこの種の表面シートとしては、物品の表面に体液
が滲んだり、拡散したりすることなく、物品の内部へす
ばやく透過する一方、該内部に一旦吸収された体液が使
用者の体圧により表面へ逆流して使用者の肌を濡らすこ
とを少なくし、さらには、弾性圧縮回復率、風合い（感
触）、引張強度を向上させることなどの性能が望まれ
る。Generally, as a surface sheet of this type, body fluid is quickly permeated into the inside of the article without bleeding or spreading on the surface of the article, while the body fluid once absorbed inside the article is surfaced by the body pressure of the user. It is desired to reduce the backflow to the user's skin and further improve the elastic compression recovery rate, the texture (feel), and the tensile strength.
従来、こうした性能のいくつかを表面シートに付与する
ため、該表面シートをそれぞれ所定の繊維重量比を有す
る、使用者の肌に接する表層と肌に接しない裏層とによ
り構成するとともに、表層の密度を高くして緻密な紙状
になし、裏層の密度を低くして多量の空間を形成した技
術が、たとえば、特開昭58−55788号、同61−23949号の
各公報に開示されている。Conventionally, in order to impart some of these properties to a surface sheet, the surface sheet is composed of a surface layer in contact with the user's skin and a back layer not in contact with the skin, each having a predetermined fiber weight ratio. A technique of increasing the density to form a dense paper-like shape and reducing the density of the back layer to form a large amount of space is disclosed in, for example, Japanese Patent Laid-Open Nos. 58-55788 and 61-23949. ing.
前記公知技術による表面シートにおいては、前記性能を
満足させえていない。とくに、表層は密度が高く緻密で
紙状であるため、裏層への体液の浸透がすばやくなされ
ず、表層の上面で滲みが起こり、しかもその上面に体液
が残存して着用者に不快感を与えていた。The surface sheet according to the above-mentioned known technique does not satisfy the above performance. In particular, since the surface layer is dense and dense and paper-like, body fluid does not quickly permeate into the back layer, bleeding occurs on the upper surface of the surface layer, and body fluid remains on the upper surface, causing discomfort to the wearer. I was giving.
一方、裏層は、密度が低くて多量の空間を有しているた
め、毛細管作用が弱く、体液を裏層内で面方向へ拡散さ
せる機能に欠けている。したがって、表層での体液の拡
がり（滲み）域とほぼ同域のその拡がりをもって裏層の
下面に配置される吸収体の上面へ導く機能を有するにす
ぎず、吸収体を広域にわたって有効に利用することがで
きなかった。On the other hand, since the back layer has a low density and a large amount of space, it has a weak capillary action and lacks the function of diffusing body fluid in the surface direction in the back layer. Therefore, it has a function to guide the upper surface of the absorbent body arranged on the lower surface of the back layer with the spread (blurring) area of the body fluid in the same area as the spreading area of the body fluid, and effectively uses the absorbent body over a wide area. I couldn't.
本発明は、前記問題点を解決することができる衛生物品
の表面シートを提供することを主目的とする。The main object of the present invention is to provide a topsheet for a hygiene article which can solve the above problems.
（２）発明の構成 〔問題点を解決するための手段〕 本発明においては、肌に接する表層と、その裏層を構成
する繊維が融着して一体に複合し、その複合表裏層の全
体の目付が17〜40g/m2、密度が0.01〜0.08g/cm3、前記
表層の密度が前記裏層のそれよりも低い、吸収性物品の
表面シートにおいて、前記表層は、目付が８〜22g/m2で
あり、構成繊維がポリエステル−ポリエチレンの複合繊
維またはポリプロピレン−ポリエチレンの複合繊維（第
１繊維）と、ポリエステル・ポリプロピレン・低融点ポ
リエステルの少なくとも一種（第２繊維）との混合であ
り、これら第１および第２繊維の混合割合が重量比で85
〜100:0〜５であり、かつ、前記裏層は、目付が７〜20g
/m2であり、構成繊維が前記第１繊維と第２繊維との混
合であり、これら第１および第２繊維の混合割合が重量
比で70〜100:30〜０であることを特徴とする。(2) Structure of the Invention [Means for Solving the Problems] In the present invention, the surface layer in contact with the skin and the fibers constituting the back layer are fused and integrally combined, and the entire composite front and back layer. In the surface sheet of the absorbent article, wherein the surface layer has a basis weight of 8 to 40 g / m 2 , a density of 0.01 to 0.08 g / cm 3 , and a density of the surface layer lower than that of the back layer. 22 g / m 2 and the constituent fiber is a mixture of polyester-polyethylene composite fiber or polypropylene-polyethylene composite fiber (first fiber) and at least one of polyester / polypropylene / low melting point polyester (second fiber). , The mixing ratio of these first and second fibers is 85 by weight.
~ 100: 0 ~ 5, and the back layer has a basis weight of 7 ~ 20g
/ m 2 , the constituent fibers are a mixture of the first fibers and the second fibers, and the mixing ratio of these first and second fibers is 70 to 100: 30 to 0 in weight ratio. To do.
以下、本発明の実施態様を説明する。 Hereinafter, embodiments of the present invention will be described.
実施態様にかかる表面シートは、全体の目付が17〜40g/
m2、密度が0.01〜0.08g/cm3であり、使用者の肌に接す
る目付が８〜22g/m2の表層繊維と、肌に接しない目付が
７〜20g/m2の裏層繊維とから構成され、かつ、表層の密
度が裏層のそれよりも低くされている。表層繊維は、ポ
リエステル−ポリエチレン、ポリプロピレン−ポリエチ
レンの各芯−鞘型複合である１〜３デニールの第１繊維
と、ポリエステル・ポリプロピレン・低融点ポリエステ
ル（融点100〜150℃）の少なくとも一種の第２繊維との
混合から構成されている。裏層繊維は、前記第１繊維と
第２繊維との混合から構成されている。表層における第
１および第２繊維の混合割合は重量比で85〜100:0〜５
であり、かつ、裏層における第１および第２繊維の混合
割合は重量比で70〜100:30〜０である。The surface sheet according to the embodiment has a total basis weight of 17 to 40 g /
m 2 with a density of 0.01 to 0.08 g / cm 3 and a surface layer fiber having a basis weight of 8 to 22 g / m 2 that comes into contact with the user's skin and a back layer fiber having a basis weight of 7 to 20 g / m 2 that does not come into contact with the skin. And the surface layer has a lower density than that of the back layer. The surface layer fiber is a 1 to 3 denier first fiber, which is a core-sheath type composite of polyester-polyethylene and polypropylene-polyethylene, and at least one second type of polyester / polypropylene / low melting point polyester (melting point 100 to 150 ° C.). It is composed of a mixture with fibers. The backing layer fibers are composed of a mixture of the first fibers and the second fibers. The mixing ratio of the first and second fibers in the surface layer is 85-100: 0-5 by weight.
And the mixing ratio of the first and second fibers in the back layer is 70 to 100: 30 to 0 by weight.
表面シートの全体の目付が17g/m2未満、密度が0.01g/cm
3未満、表層の目付が8g/m2未満、裏層の目付が7g/m2未
満であると、所要の強度、嵩がえられず、体液の逆戻り
（リウエット）が生じ、表面シートの全体の目付が40g/
m2超、密度が0.08g/cm3超、表層の目付が22g/m2超、裏
層の目付が20g/m2超であると、所要の体液透過性がえら
れず表面に滲みが生ずる。第１繊維の重量比が85未満で
あると、所要の接合（融着）強度、柔らかさ、体液透過
性がえられない。とくに、表層の密度が裏層のそれより
も低くないと、換言すれば、裏層の密度が表層のそれよ
りも高くないと、体液が表層に停滞することなく、すば
やく裏層に導かれ、かつ、裏層で毛細管作用によって拡
散する、という本発明の最大の目的を達成することがで
きない。The total weight of the surface sheet is less than 17 g / m 2 , and the density is 0.01 g / cm
If it is less than 3 , the surface weight is less than 8 g / m 2 and the back layer weight is less than 7 g / m 2 , the required strength and bulk cannot be obtained, and body fluid reversal (rewet) occurs, resulting in the entire surface sheet. The basis weight is 40 g /
When it is more than m 2 , the density is more than 0.08 g / cm 3 , the surface weight is more than 22 g / m 2 , and the back layer weight is more than 20 g / m 2 , the required bodily fluid permeability cannot be obtained and the surface is bleeding. Occurs. If the weight ratio of the first fibers is less than 85, the required bonding (fusion) strength, softness, and body fluid permeability cannot be obtained. In particular, if the density of the surface layer is not lower than that of the back layer, in other words, if the density of the back layer is not higher than that of the surface layer, then body fluid is quickly guided to the back layer without stagnation in the surface layer, In addition, it is impossible to achieve the maximum object of the present invention of diffusing by capillarity in the back layer.
第１繊維は、表裏層に100％使用されることが好ましい
が、前述のように、第２繊維は表層に最高５％、裏層に
最高30％が使用されていてもよい。また、表裏層（第１
繊維）において含まれるポリエチレン成分の重量割合は
少なくとも50％であることが、肌ざわりを良好にするう
えで好ましい。It is preferable that 100% of the first fiber is used in the front and back layers, but as described above, the second fiber may be used in a maximum of 5% in the front layer and a maximum of 30% in the back layer. In addition, the front and back layers (first
The weight ratio of the polyethylene component contained in the fiber is preferably at least 50% in order to improve the feel of the skin.
表裏層繊維のデニールは、前記デニールが好ましいが、
とくに、表層繊維のデニールは、表層の密度を低くし風
合いをよくすることから、大きい（太い）のが好まし
く、かつ、裏層繊維のデニールは、裏層の密度を高くし
毛細管作用をよくすることから、小さい（細い）のが好
ましい。The denier of the front and back layer fibers is preferably the above denier,
Particularly, the denier of the surface layer fiber is preferably large (thick) because it lowers the density of the surface layer and improves the texture, and the denier of the back layer fiber increases the density of the back layer and improves the capillary action. Therefore, it is preferably small (thin).
表面シートは、前記各繊維を混合し、所要のウエブ形成
方法、好ましくはカーディング機で表裏層繊維としての
ウエブをそれぞれ形成したのち、これらを互いに積層
し、この積層ウエブをメッシュの上面に裏層を接しめた
状態で熱風加熱装置や加熱加圧装置で、第１繊維のポリ
エチレンの融点以上の温度下に、加熱処理することによ
り製造される。The surface sheet is prepared by mixing the above-mentioned fibers and forming webs as front and back layer fibers by a required web forming method, preferably a carding machine, and laminating these on top of each other. It is produced by heat-treating the layers in contact with each other with a hot-air heating device or a heating / pressurizing device at a temperature equal to or higher than the melting point of polyethylene of the first fiber.
前記加熱処理により、表裏層ウエブの繊維は、第１繊維
のポリエチレン同志、これと他の繊維、すなわち、第２
繊維（これが混合されている場合）との各交点や単なる
接触点上における溶融したポリエチレンを介して融着さ
れる。As a result of the heat treatment, the fibers of the front and back layer webs are polyethylene fibers of the first fiber, and other fibers, that is, the second fiber.
Fused through the molten polyethylene at each intersection with the fibers (if they are mixed) or simply at the point of contact.
前述のようにしてえられた表面シートは、3g/m2の荷重
下の、乾燥時の厚さが0.5〜2mmであることが、とくに体
液のリウエットを防止するうえで好ましい。また、表面
シートは、縦方向の引張強度が少なくとも2000g/25mm、
横方向それが少なくとも200g/25mmであることが好まし
い。そして、こうした厚さや引張強度を有する表面シー
トは、本発明によれば確実にえられる。The surface sheet obtained as described above preferably has a dry thickness of 0.5 to 2 mm under a load of 3 g / m 2 in order to prevent rewet of body fluids. In addition, the surface sheet has a longitudinal tensile strength of at least 2000 g / 25 mm,
Preferably in the transverse direction it is at least 200 g / 25 mm. And, according to the present invention, a surface sheet having such a thickness and tensile strength can be surely obtained.
また、前述のようにしてえられた表面シートは、生理用
ナプキン、使い捨ておむつなどの吸収性物品に使用され
る。一般に、こうした物品は、表面シートと不透水性裏
面シートとの間に介在させた吸収体とから構成される。The surface sheet obtained as described above is used for absorbent articles such as sanitary napkins and disposable diapers. Generally, such articles consist of an absorbent body interposed between a topsheet and a water impermeable backsheet.
実施例、比較例は、別表に示すとおり。 Examples and comparative examples are as shown in the attached table.
表裏層ウエブを積層し裏層ウエブの下面をステンレス製
の25メッシュの上面に接しめた状態で、熱風加熱装置に
より熱風温度135〜145℃、風速1m/secで処理し、つい
で、裏層ウエブの下面を温度120〜130℃のロールに当て
ながら、移送速度60m/minで処理した。With the front and back layer webs laminated and the bottom surface of the back layer web in contact with the upper surface of 25 mesh made of stainless steel, the hot air temperature was set at 135 to 145 ° C and the wind speed was 1m / sec. The lower surface was treated with a roll having a temperature of 120 to 130 ° C. and processed at a transfer speed of 60 m / min.
表中の例１は、表裏層全体の目付が17〜40g/m2である必
要を示す。 Example 1 in the table shows that the basis weight of the entire front and back layers needs to be 17 to 40 g / m 2 .
表中の例２は、表裏層全体の密度が0.01〜0.08g/cm3で
ある必要を示す。Example 2 in the table shows that the density of the entire front and back layers should be 0.01 to 0.08 g / cm 3 .
表中の例３は、表層の第１繊維の重量が少なくとも85％
であるのが好ましいことを示す。Example 3 in the table shows that the weight of the first fiber of the surface layer is at least 85%.
Indicates that is preferable.
表中の例４は、裏層の第１繊維の重量が少なくとも70％
であるのが好ましいことを示す。Example 4 in the table shows that the weight of the first fiber of the backing layer is at least 70%
Indicates that is preferable.
表中の例５は、表層の密度が裏層のそれよりも低いのが
好ましいことを示す。Example 5 in the table shows that it is preferred that the surface layer have a lower density than that of the back layer.
表中の例６は、表裏層に第１繊維を100％使用した例を
示す。Example 6 in the table shows an example in which 100% of the first fiber was used for the front and back layers.
表中の例７は、表層を二層のウエブで構成した例を示
す。このように構成すると、表層の目付のバランスが保
たれ風合いがさらに良好になる。Example 7 in the table shows an example in which the surface layer is composed of a two-layer web. According to this structure, the balance of the areal weight of the surface layer is maintained, and the texture is further improved.
表中の例８は、表層の繊度が裏層のそれよりも大きいの
が好ましいことを示す。Example 8 in the table shows that the fineness of the surface layer is preferably larger than that of the back layer.
表中の性能テストは、つぎのとおり。The performance tests in the table are as follows.
強伸度 試験片を幅25mm、つかみ幅100mm、引張速度100mm/minと
し、MD、CDの最大強度およびその時の伸度を測定した。The strength and elongation of the test piece were measured with a width of 25 mm, a grip width of 100 mm and a pulling speed of 100 mm / min, and the maximum strength of MD and CD and the elongation at that time.
風合い 肌ざわり（柔らかさ）を官能テストした。Texture A sensory test was performed on the texture (softness).
○良好 △やや良 ×悪い リウエット 試験片を大きさ150×400mmとし、これを粉砕パルプ24
g、吸収性ポリマー（三洋化成（株）製UX9E）6gを混合
した吸収体に載せ、 人工尿80ccを試験片の中央部に９秒間で注入し、 注入開始５分後、予め重量を測定した濾紙40枚と3.5k
gの重りを注入部位に３分間載せた。○ Good △ Somewhat good × bad Rewet A test piece of size 150 × 400 mm was prepared, and
g, 6 g of absorbent polymer (UX9E manufactured by Sanyo Kasei Co., Ltd.) was placed on the absorbent body, and 80 cc of artificial urine was injected into the center of the test piece in 9 seconds, and 5 minutes after the start of injection, the weight was measured in advance. 40 sheets of filter paper and 3.5k
A g weight was placed on the injection site for 3 minutes.
その後、２分間放置し、前記，の操作を再び繰り
返した。そして、次式で求めた。Then, it was left for 2 minutes, and the above operation was repeated again. And it calculated | required by the following formula.
滲み 前記リウエットの測定における，の操作を行い、注
入開始３分後、試験片の滲みの面積を求めた｛面積＝
（縦方向の最大滲み）×（横方向の最大滲み）cm2｝。 Bleeding The above operation in the rewet measurement was performed, and the bleeding area of the test piece was obtained 3 minutes after the start of injection {area =
(Maximum bleeding in the vertical direction) x (Maximum bleeding in the lateral direction) cm 2 }.
残存量 前記リウエットの測定における，の操作を行い、注
入開始３分後、試験片に残った人工尿量を測定した（注
入後の試験片重量−注入前の試験片重量）。Remaining amount In the measurement of the rewet, the operation of was performed, and 3 minutes after the start of injection, the amount of artificial urine remaining in the test piece was measured (weight of test piece after injection-weight of test piece before injection).
浸透性 試験片200×150mmを前記リウエットの測定における吸
収体上に載せ、人工尿100ccを表面全体が濡れるように
注入した。30分間放置後、試験片をメッシュ上（３×3m
m）に置き、人工尿80ccを９秒間で注入し、人工尿80cc
が浸透するまでの時間を測定した（浸透時間−９秒）。A penetrability test piece of 200 × 150 mm was placed on the absorber in the measurement of the rewet, and 100 cc of artificial urine was injected so that the entire surface was wet. After leaving for 30 minutes, put the test piece on the mesh (3 x 3 m
80 cc of artificial urine is injected in 9 seconds
Was measured (penetration time-9 seconds).
乾燥時の弾性圧縮回復率 試験片を大きさ100×100mmに切断し、これを10枚重
ね、 前記重ねた試験片に3.0g/cm2の荷重を１分間かけ、厚
みを測定し（1V3.0）、 さらに、40g/cm2の荷重を１分間かけ、厚みを測定す
る（V1）。Elastic compression recovery rate when dried A test piece was cut into a size of 100 × 100 mm, 10 pieces were stacked, and a load of 3.0 g / cm 2 was applied to the stacked test piece for 1 minute, and the thickness was measured ( 1 V 3.0 ), and a load of 40 g / cm 2 is applied for 1 minute, and the thickness is measured (V 1 ).
無負荷の状態で５分間おき、3.0g/cm2の荷重をかけ、
回復後の厚みを測定し（2V3.0）、 次式によって値を出した。Leave it unloaded for 5 minutes and apply a load of 3.0 g / cm 2 ,
The thickness after recovery was measured ( 2 V 3.0 ) and the value was calculated by the following formula.
（註１）表中、繊維PETは、ポリエステル繊維（ユニチ
カKK製）。 (Note 1) In the table, the fiber PET is polyester fiber (made by Unitika KK).
（註２）表中、繊維6080は、ポリエステル−ポリエチレ
ンの芯−鞘型複合繊維（ユニチカKK製）。(Note 2) In the table, the fiber 6080 is a polyester-polyethylene core-sheath type composite fiber (manufactured by Unitika KK).
（註３）表中、繊維ESCは、ポリプロピレン−ポリエチ
レンの複合繊維（チッソKK製）。(Note 3) In the table, the fiber ESC is a polypropylene-polyethylene composite fiber (made by Chisso KK).
（註４）表中、繊維NBFは、ポリプロピレン−ポリエチ
レンの複合繊維（大和紡KK製）。(Note 4) In the table, the fiber NBF is a polypropylene-polyethylene composite fiber (manufactured by Daiwabo KK).
（註５）前記繊維ポリエステルまたはポリプロピレン：
ポリエチレンの重量比は、50:50。(Note 5) The fiber polyester or polypropylene:
The weight ratio of polyethylene is 50:50.
（３）発明の効果 本発明にかかる表面シートによれば、実施例の試験結果
から明らかのように、優れた性能を発揮するが、とく
に、表層は繊維密度が低いから、表層に接した体液を表
層に停滞させることなく、すばやく裏層に導くととも
に、裏層は繊維密度が高いから、かつ、そのため毛細管
作用も強いから、裏層に達した体液をその毛細管作用に
よって面および層方向へすばやく拡散させる。したがっ
て、体液は、裏層に接して配置される吸収体の全域にわ
たって拡散吸収され、該吸収体を有効に利用することが
できる。(3) Effects of the Invention According to the surface sheet of the present invention, as is apparent from the test results of the examples, excellent performance is exhibited, but in particular, since the surface layer has a low fiber density, the body fluid in contact with the surface layer Guides to the back layer without stagnation in the surface layer, and because the back layer has a high fiber density and therefore has a strong capillary action, the body fluid that reaches the back layer is quickly moved in the surface and layer directions by the capillary action. Spread. Therefore, the body fluid is diffused and absorbed over the entire area of the absorber arranged in contact with the back layer, and the absorber can be effectively used.
Claims (6)
維が融着して一体に複合し、その複合表裏層の全体の目
付が17〜40g/m2、密度が0.01〜0.08g/cm3、前記表層の
密度が前記裏層のそれよりも低い、吸収性物品の表面シ
ートであって、前記表層は、目付が８〜22g/m2であり、
構成繊維がポリエステル−ポリエチレンの複合繊維また
はポリプロピレン−ポリエチレンの複合繊維（第１繊
維）と、ポリエステル・ポリプロピレン・低融点ポリエ
ステルの少なくとも一種（第２繊維）との混合であり、
これら第１および第２繊維の混合割合が重量比で85〜10
0:0〜５であり、かつ、前記裏層は、目付が７〜20g/m2
であり、構成繊維が前記第１繊維と前記第２繊維との混
合であり、これら第１および第２繊維の混合割合が重量
比で70〜100:30〜０であることを特徴とする前記の表面
シート。1. The surface layer in contact with the skin and the fibers constituting the back layer are fused and integrated together, and the total weight of the composite front and back layer is 17 to 40 g / m 2 , and the density is 0.01 to 0.08 g. / cm 3 , a surface sheet of an absorbent article, wherein the surface layer has a lower density than that of the back layer, the surface layer having a basis weight of 8 to 22 g / m 2 .
The constituent fiber is a mixture of a polyester-polyethylene composite fiber or a polypropylene-polyethylene composite fiber (first fiber) and at least one kind of polyester / polypropylene / low melting point polyester (second fiber),
The mixing ratio of the first and second fibers is 85 to 10 by weight.
0: 0 to 5, and the back layer has a basis weight of 7 to 20 g / m 2
The constituent fiber is a mixture of the first fiber and the second fiber, and the mixing ratio of the first and second fibers is 70 to 100: 30 to 0 in weight ratio. Surface sheet.
量割合は少なくとも50％である特許請求の範囲第１項記
載の表面シート。2. The surface sheet according to claim 1, wherein the weight percentage of the polyethylene component in the composite layer is at least 50%.
である特許請求の範囲第１項記載の表面シート。3. The surface sheet according to claim 1, wherein the first and second fibers have a denier of 1 to 3 denier.
もデニールが大きい特許請求の範囲第１項記載の表面シ
ート。4. The surface sheet according to claim 1, wherein the constituent fibers of the surface layer have a larger denier than that of the back layer.
−鞘型繊維である特許請求の範囲第１項記載の表面シー
ト。5. The surface sheet according to claim 1, wherein the first fiber is a core-sheath type fiber having polyethylene as a sheath.
の厚さが0.5〜2mmである特許請求の範囲第１項記載の表
面シート。6. The surface sheet according to claim 1, wherein the composite layer has a dry thickness of 0.5 to 2 mm under a load of 3 g / cm 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62176602A JPH0716508B2 (en) | 1987-07-14 | 1987-07-14 | Surface sheet of absorbent article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62176602A JPH0716508B2 (en) | 1987-07-14 | 1987-07-14 | Surface sheet of absorbent article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420844A JPS6420844A (en) | 1989-01-24 |
| JPH0716508B2 true JPH0716508B2 (en) | 1995-03-01 |
Family
ID=16016437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62176602A Expired - Lifetime JPH0716508B2 (en) | 1987-07-14 | 1987-07-14 | Surface sheet of absorbent article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716508B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3587677B2 (en) * | 1998-03-26 | 2004-11-10 | ユニ・チャーム株式会社 | Liquid permeable surface sheet for body fluid absorbing articles |
| DE19947582C1 (en) * | 1999-10-02 | 2001-08-02 | Hartmann Paul Ag | Composite material to form a body-facing layer for a hygiene article and hygiene article |
| JP3971136B2 (en) * | 2001-07-12 | 2007-09-05 | ユニ・チャーム株式会社 | Absorbent articles |
| JP2010106402A (en) * | 2008-10-31 | 2010-05-13 | Kinsei Seishi Kk | Water-permeable nonwoven fabric sheet |
| JP6289418B2 (en) * | 2015-05-29 | 2018-03-07 | ユニ・チャーム株式会社 | Nonwoven fabric for absorbent articles |
| WO2021153312A1 (en) | 2020-01-29 | 2021-08-05 | 東レ株式会社 | Layered nonwoven fabric and sanitary material |
| JPWO2024180809A1 (en) * | 2023-02-27 | 2024-09-06 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59223350A (en) * | 1983-05-26 | 1984-12-15 | 株式会社クラレ | Nonwoven fabric and production thereof |
-
1987
- 1987-07-14 JP JP62176602A patent/JPH0716508B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6420844A (en) | 1989-01-24 |
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