JPH06226852A - Bonding of laminated sheets - Google Patents
Bonding of laminated sheetsInfo
- Publication number
- JPH06226852A JPH06226852A JP3425993A JP3425993A JPH06226852A JP H06226852 A JPH06226852 A JP H06226852A JP 3425993 A JP3425993 A JP 3425993A JP 3425993 A JP3425993 A JP 3425993A JP H06226852 A JPH06226852 A JP H06226852A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- laminate
- vinylidene fluoride
- resin layer
- fluoride 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
- 239000010410 layer Substances 0.000 claims abstract description 165
- 239000004744 fabric Substances 0.000 claims abstract description 67
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 38
- 239000012790 adhesive layer Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims description 136
- 239000011347 resin Substances 0.000 claims description 136
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 65
- 238000005304 joining Methods 0.000 claims description 40
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 10
- 238000003475 lamination Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 7
- 239000002033 PVDF binder Substances 0.000 abstract 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 5
- 101100137008 Streptomyces hygroscopicus Pmms gene Proteins 0.000 abstract 1
- 229920000434 poly[(mercaptopropyl)methylsiloxane] polymer Polymers 0.000 abstract 1
- 229920006026 co-polymeric resin Polymers 0.000 description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000004078 waterproofing Methods 0.000 description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 229920002978 Vinylon Polymers 0.000 description 3
- 125000005396 acrylic acid ester group Chemical group 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- -1 hexafluoropropylene, trifluoroethylene Chemical group 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- YMRMDGSNYHCUCL-UHFFFAOYSA-N 1,2-dichloro-1,1,2-trifluoroethane Chemical compound FC(Cl)C(F)(F)Cl YMRMDGSNYHCUCL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- ULDDEWDFUNBUCM-UHFFFAOYSA-N pentyl prop-2-enoate Chemical compound CCCCCOC(=O)C=C ULDDEWDFUNBUCM-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、積層シートの接合方法
に関する。さらに詳しくは表面層にフッ化ビニリデン系
樹脂層を有しテント用布等として有用な特定の積層シー
トの接合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining laminated sheets. More specifically, the present invention relates to a method for joining a specific laminated sheet which has a vinylidene fluoride resin layer as a surface layer and is useful as a cloth for a tent or the like.
【0002】[0002]
【従来技術】テント類やシート類は種々の用途に使用さ
れている。例えばシート類としては船舶用、トラック
用、貨車用、土木建築用、倉庫用、農業用等があり、テ
ント類としては軒出しテント、アーケードテント、携帯
テント、構造テント等広範に使用されている。そして各
用途に適した素材や構造物が採用されている。2. Description of the Related Art Tents and sheets are used for various purposes. For example, sheets include ships, trucks, freight cars, civil engineering, warehouses, agriculture, etc., and tents are widely used in eaves tents, arcade tents, mobile tents, structural tents, etc. . And the material and structure suitable for each use are adopted.
【0003】テント類やシート類としては、基布に表面
層用シート(ラミネートシートまたはオーバーレイシー
ト)を積層したものがある。基布としては柔軟性のある
ポリエステル、ポリアミド、ビニロン等の合成繊維や
綿、麻等の天然繊維等からなるクロス(織物)に防水加
工が施されたターポリンや帆布が使用される。防水加工
法としては、最も防水性の必要の少ない用途から完全な
防水が必要な用途まで要求程度に応じて異なり、それぞ
れはっ水剤で処理するはっ水方式、樹脂液に浸漬するデ
ィッピング方式、ペースト樹脂を塗布するコーティング
方式、さらにはフィルムを貼り付けるトッピングもしく
はラミネート方式が採用される。例えば携帯テントのよ
うな軽さが必要なものには、はっ水加工方式のビニロン
クロスあるいは樹脂量の少ないコーティング方式のポリ
アミドクロスが用いられる。As tents and sheets, there are those in which a surface layer sheet (laminate sheet or overlay sheet) is laminated on a base cloth. As the base cloth, a tarpaulin or canvas made of waterproof cloth (woven fabric) made of synthetic fibers such as flexible polyester, polyamide and vinylon, and natural fibers such as cotton and hemp is used. The waterproofing method varies depending on the degree of demand, from the application that requires the least waterproofness to the application that requires complete waterproofing. The water-repellent method is treated with a water-repellent agent, and the dipping method is immersed in the resin liquid. A coating method of applying a paste resin, and a topping or laminating method of attaching a film are adopted. For example, for a portable tent that needs to be light, a water repellent vinylon cloth or a coating polyamide polyamide cloth with a small amount of resin is used.
【0004】また前記基布層の表面に積層されるラミネ
ートシートは、柔軟性のほか耐候性が要求されるが、こ
の様なラミネートシートとして、耐候性の良好なフッ化
ビニリデン系樹脂層を表面層とし、それに軟質塩化ビニ
ル樹脂基材層を接着層で接着した三層積層シートが使用
されている。その場合の接着層としては、以前より接着
性の良好なポリメタクリル酸メチル樹脂(PMMA)が
使用されている。The laminate sheet laminated on the surface of the base fabric layer is required to have weather resistance as well as flexibility. As such a laminate sheet, a vinylidene fluoride resin layer having good weather resistance is provided on the surface. A three-layer laminated sheet in which a soft vinyl chloride resin base material layer is adhered thereto by an adhesive layer is used as a layer. As the adhesive layer in that case, a polymethylmethacrylate resin (PMMA) having a better adhesive property than before is used.
【0005】前記のようなラミネートシートと基布から
なる積層シートからテント類や各種用途に適したシート
類等の構造物を製作する際には、作業性等の観点から複
数の適当な大きさに裁断したシートを用い、それらの端
部同士を重ね合わせて、その部分に高周波ウエルド処理
して接合する方法が通常採用されている。When manufacturing structures such as tents and sheets suitable for various purposes from the above-described laminated sheet composed of the laminated sheet and the base cloth, a plurality of suitable sizes are used from the viewpoint of workability and the like. A method in which a sheet cut into the above is used, the ends thereof are overlapped with each other, and a high-frequency weld treatment is applied to the portion to join the sheets is usually adopted.
【0006】[0006]
【発明が解決しようとする課題】前記のような構造物の
製作において問題となるのは、主に接合強度と接合作業
性である。接合強度に関しては、フッ化ビニリデン系樹
脂層と基布層を接着させて接合する必要があり、また前
記構造物の使用時には直射日光により比較的高温になる
ことから、比較的高温における接合強度、特に耐熱クリ
ープ性の良いことが要求される。また二枚の積層シート
を上下にそれらの端部を重ね合わせて接合する場合、そ
れらの間に接着両面に対し接着性の良いアクリル系樹脂
の細長いフィルム片を挟むか、またはその接合面となる
片方の積層シートの基布層表面にアクリル樹脂コートを
施している。しかし前者の場合は、接合する際に前記フ
ィルム片が動き易く、また長い接合面に亘ってフィルム
片を正確に挟むことは非常に困難であり、接合中にずれ
たりするので作業性が極めて悪い。また後者においては
作業性は良好であるが、接合する個所が予め判明してい
ないので、通常基布層表面の全面にアクリル樹脂コート
が施されることとなり、経済的にも不都合であった。こ
の他さらに改善すべき問題として、前記のような接合に
おいては、積層されるシートの端部はその断面がむき出
し状態になることである。表面層にあるフッ化ビニリデ
ン系樹脂は耐候性や耐汚染性に優れるが、ポリメタクリ
ル酸メチル系樹脂接着層や塩化ビニル樹脂を含む基材層
さらには基布層は汚れ易く、また雨等に晒されると劣化
がその部分から始まる。従って、テント等の構造物とし
た際、接合により上側になるシートの端部断面を保護す
ることが接合部の耐候性を長期に亘って保持する観点か
ら望まれる。Problems to be solved in the production of the above structure are mainly the bonding strength and the bonding workability. Regarding the bonding strength, it is necessary to bond the vinylidene fluoride resin layer and the base fabric layer by bonding, and since the temperature becomes relatively high due to direct sunlight when the structure is used, the bonding strength at relatively high temperature, Particularly, good heat resistance and creep resistance are required. Also, when two laminated sheets are joined together by stacking their ends on top of each other, a thin strip of acrylic resin film with good adhesiveness to both sides of the adhesive is sandwiched between them or becomes the joining surface. An acrylic resin coat is applied to the surface of the base fabric layer of one of the laminated sheets. However, in the former case, the film piece is easily moved during joining, and it is very difficult to accurately sandwich the film piece over a long joining surface, and the workability is extremely poor because it shifts during joining. . Further, in the latter case, the workability is good, but since the joining point is not known in advance, the acrylic resin coat is usually applied to the entire surface of the base fabric layer, which is economically inconvenient. Another problem to be further improved is that in the above-mentioned joining, the end portions of the laminated sheets are exposed in cross section. The vinylidene fluoride resin in the surface layer is excellent in weather resistance and stain resistance, but the base material layer containing the polymethylmethacrylate resin adhesive layer and the vinyl chloride resin and the base cloth layer are easily soiled, and are resistant to rain, etc. When exposed, deterioration starts from that part. Therefore, when a structure such as a tent is formed, it is desired to protect the end cross section of the upper sheet by joining from the viewpoint of maintaining the weather resistance of the joined portion for a long period of time.
【0007】[0007]
【課題を解決するための手段】本発明者等は、フッ化ビ
ニリデン系樹脂層および基布層を有する特定の積層シー
ト同士を重ね合わせ、高周波ウエルド処理等により接合
させる場合の作業性や経済性、接合強度、さらには接合
部の端部断面の保護について鋭意検討した結果、本発明
を完成させることが出来た。Means for Solving the Problems The present inventors have found that workability and economic efficiency when specific laminated sheets having a vinylidene fluoride resin layer and a base fabric layer are superposed and joined by high-frequency welding treatment or the like. The present invention has been completed as a result of earnestly examining the bonding strength, and further the protection of the end cross section of the bonding portion.
【0008】すなわち本発明によれば、一表面にフッ化
ビニリデン系樹脂層(a)、他表面に帆布またはターポ
リンからなる基布層(d)を有し、それらの間にポリメ
タクリル酸メチル系樹脂接着層(b)を含む積層体
(X)の端部と前記(X)と同一構造からなる積層体
(Y)の端部とを前記積層体(X)の基布層(d)と前
記積層体(Y)のフッ化ビニリデン系樹脂層(a)を対
向させて接合する方法において、接合材としてフッ化ビ
ニリデン系樹脂層とポリメタクリル酸メチル系樹脂層か
らなる積層体(Z)片を用い、かつ前記積層体(Z)片
をポリメタクリル酸メチル系樹脂層が内側になるように
折り曲げて前記積層体(X)の端部を把持し、かつ積層
体(X)の端部基布層に接する前記折り曲げ片のフッ化
ビニリデン系樹脂外面層が前記積層体(Y)の端部フッ
化ビニリデン系樹脂層(a)と接するように積層体
(X)の端部と積層体(Y)の端部の間に前記折り曲げ
片を挟持し、前記折り曲げた積層体(Z)片と前記挟持
した端部を加圧下で加熱することを特徴とする積層シー
トの接合方法が提供される。That is, according to the present invention, a vinylidene fluoride resin layer (a) is provided on one surface and a canvas or tarpaulin base fabric layer (d) is provided on the other surface, and a polymethyl methacrylate resin layer is provided between them. An end portion of the laminate (X) including the resin adhesive layer (b) and an end portion of the laminate (Y) having the same structure as the (X) are referred to as a base fabric layer (d) of the laminate (X). A laminate (Z) piece comprising a vinylidene fluoride resin layer and a poly (methyl methacrylate) resin layer as a bonding material in the method of facing and bonding the vinylidene fluoride resin layer (a) of the laminate (Y). And the end of the laminate (X) is held by bending the piece of the laminate (Z) so that the polymethylmethacrylate resin layer is on the inside, and Vinylidene fluoride resin outer surface layer of the bent piece in contact with the cloth layer The bent piece is sandwiched between the end of the laminate (X) and the end of the laminate (Y) so as to be in contact with the end vinylidene fluoride resin layer (a) of the laminate (Y). Provided is a method for joining a laminated sheet, which comprises heating a folded laminate (Z) piece and the sandwiched end portion under pressure.
【0009】また本発明の別の態様によれば、フッ化ビ
ニリデン系樹脂層(a)、ポリメタクリル酸メチル系樹
脂接着層(b)、前記接着層(b)に接着される帆布ま
たはターポリンからなる基布層(d)とからなる積層体
(X1)の端部と前記積層体(X1)と同一構造からなる
(Y1)の端部とを前記積層体(X1)の基布層(d)と
前記積層体(Y1)のフッ化ビニリデン系樹脂層(a)
を対向させて接合する方法において、積層体(X1)と
して前記フッ化ビニリデン系樹脂層(a)とポリメタク
リル酸メチル系樹脂層(b)からなる層の端部が基布層
(d)からなる層の端部よりも延出して形成された積層
体を用い、かつ前記延出部のフッ化ビニリデン系樹脂層
(a)が前記積層体(Y1)のフッ化ビニリデン系樹脂
層(a)と接するように前記延出部を積層体(X1)の
非延出端部と積層体(Y1)の端部の間に折り曲げて挟
持し、前記挟持した端部を加圧下で加熱することを特徴
とする積層シートの接合方法。が提供される。According to another aspect of the present invention, a vinylidene fluoride resin layer (a), a polymethylmethacrylate resin adhesive layer (b), a canvas or a tarpaulin adhered to the adhesive layer (b) is used. comprising groups of the base fabric layer (d) from become laminate (X 1) of the same structure end and the laminate and (X 1) of the (Y 1) end and the laminate of (X 1) Cloth layer (d) and vinylidene fluoride resin layer (a) of the laminate (Y 1 ).
In the method of facing each other and bonding, the end portion of the layer composed of the vinylidene fluoride resin layer (a) and the polymethylmethacrylate resin layer (b) as a laminate (X 1 ) is a base cloth layer (d). A laminated body formed by extending from the end portion of the layer made of a vinylidene fluoride resin layer (a) in the extending portion is a vinylidene fluoride resin layer (of the laminated body (Y 1 ). by bending the extending portion in contact with a) between the ends of the non-extended end and the stack of laminate (X 1) (Y 1) sandwiching the ends of the said sandwich under pressure A method for joining laminated sheets, which comprises heating. Will be provided.
【0010】本発明のさらに別の態様によれば、フッ化
ビニリデン系樹脂層(a)、ポリメタクリル酸メチル系
樹脂接着層(b)、前記接着層(b)に接着される塩化
ビニル樹脂を有する基材層(c)、および前記基材層
(c)に接着される帆布またはターポリンからなる基布
層(d)とからなる積層体(X2)の端部と前記積層体
(X2)と同一構造からなる(Y2)の端部とを前記積層
体(X2)の基布層(d)と前記積層体(Y2)のフッ化
ビニリデン系樹脂層(a)を対向させて接合する方法に
おいて、積層体(X2)として前記フッ化ビニリデン系
樹脂層(a)とポリメタクリル酸メチル系樹脂層(b)
からなる層の端部が基材層(c)および基布層(d)か
らなる層の端部よりも延出して形成された積層体である
かまたは前記フッ化ビニリデン系樹脂層(a)、ポリメ
タクリル酸メチル系樹脂層(b)および基材層(c)か
らなる層の端部が基布層(d)の端部よりも延出して形
成された積層体を用い、かつ前記延出部のフッ化ビニリ
デン系樹脂層(a)が前記積層体(Y2)のフッ化ビニ
リデン系樹脂層(a)と接するように前記延出部を積層
体(X2)の非延出端部と積層体(Y2)の端部の間に折
り曲げて挟持し、前記挟持した端部を加圧下で加熱する
ことを特徴とする積層シートの接合方法が提供される。
なお、前記各態様において、加圧下での加熱が高周波ウ
エルド処理であることが好ましい。以下、本発明の各態
様について詳しく説明する。According to still another aspect of the present invention, a vinylidene fluoride resin layer (a), a polymethylmethacrylate resin adhesive layer (b), and a vinyl chloride resin adhered to the adhesive layer (b) are used. base layer having (c), and ends with the laminate of the base layer base fabric layer comprising a fabric or tarpaulin is glued to (c) (d) consisting of a laminate (X 2) (X 2 ) and are opposed to the end portion the laminate (base fabric layer of the X 2) (d) and the laminate (Y 2) vinylidene fluoride resin layer (a) of the of the same structure (Y 2) In the method of joining by bonding, the vinylidene fluoride resin layer (a) and the polymethylmethacrylate resin layer (b) as the laminate (X 2 ) are used.
Or a vinylidene fluoride-based resin layer (a), which is a laminated body formed by extending the end portion of the layer formed of the base material layer (c) and the base fabric layer (d) from the end portion of the layer. Using a laminate in which the end of the layer comprising the polymethylmethacrylate resin layer (b) and the base material layer (c) extends beyond the end of the base fabric layer (d), and The non-extending end of the laminate (X 2 ) is provided with the extension part such that the vinylidene fluoride resin layer (a) of the extension part is in contact with the vinylidene fluoride resin layer (a) of the laminate (Y 2 ). There is provided a method for joining a laminated sheet, which comprises bending and sandwiching a sheet and an end of a laminate (Y 2 ) and heating the sandwiched end under pressure.
In each of the above aspects, heating under pressure is preferably high-frequency weld treatment. Hereinafter, each aspect of the present invention will be described in detail.
【0011】本発明で使用する積層シート(X)、(X
1)、(X2)、(Y)、(Y1)および(Y2)におい
て、(a)層を構成するフッ化ビニリデン系樹脂として
は、フッ化ビニリデン単独重合体のほか、フッ化ビニリ
デンを構成単位として70モル%以上含有する共重合
体、さらにこれら重合体の混合物であってもよい。フッ
化ビニリデンと共重合されるモノマーとしては、四フッ
化エチレン、六フッ化プロピレン、三フッ化エチレン、
三フッ化塩化エチレン、フッ化ビニル等が挙げられ、こ
れらの1種または2種以上を用いることができる。また
前記フッ化ビニリデン系樹脂の対数粘度としては、通常
0.5〜2.0dl/g、特に好ましくは0.85〜
1.3dl/gの範囲である。なお、対数粘度は溶媒と
してジメチルホルムアミドを用い、濃度0.4g/d
l、温度30℃の条件で測定したものである。The laminated sheets (X), (X
1 ), (X 2 ), (Y), (Y 1 ), and (Y 2 ), the vinylidene fluoride-based resin forming the layer (a) includes vinylidene fluoride homopolymer and vinylidene fluoride. A copolymer containing 70 mol% or more as a structural unit, or a mixture of these polymers may be used. Monomers that can be copolymerized with vinylidene fluoride include tetrafluoroethylene, hexafluoropropylene, trifluoroethylene,
Examples thereof include trifluoroethylene chloride and vinyl fluoride, and one or more of these may be used. The logarithmic viscosity of the vinylidene fluoride resin is usually 0.5 to 2.0 dl / g, particularly preferably 0.85 to
It is in the range of 1.3 dl / g. The logarithmic viscosity was 0.4 g / d using dimethylformamide as a solvent.
1 and the temperature was 30 ° C.
【0012】同じく本発明に用いる積層シートの接着層
(b)を構成するポリメタクリル酸メチル系樹脂として
は、ポリメタクリル酸メチル樹脂の他、MMA(メタク
リル酸メチル)を主成分とする他の共重合性モノマーと
の共重合体樹脂、さらにはポリメタクリル酸メチル樹脂
および前記共重合体樹脂から選ばれた二種以上の混合物
であっても良い。このような共重合体樹脂としては、例
えばMMAとアクリル酸の炭素数3〜5のアルキルエス
テル(以下、「アクリル酸エステル」と略す)からなる
ものを挙げることができる。この場合において、好まし
いアクリル酸エステルとしてはアクリル酸プロピル、ア
クリル酸ブチル、アクリル酸ペンチル等を例示できる。
これらの中では特にアクリル酸ブチルを用いることが好
ましい。共重合体樹脂を構成するMMAとアクリル酸エ
ステルの割合は、例えば前者が60〜90モル%の範
囲、好ましくは70〜80モル%の範囲、後者が40〜
10モル%、好ましくは30〜20モル%の範囲であ
る。またポリメタクリル酸メチル系樹脂としては、ポリ
メタクリル酸メチル樹脂または前記共重合体樹脂を少な
くとも60重量%とこれらの樹脂と相溶性のある樹脂と
の混合物であってもよい。相溶性のある樹脂としてはフ
ッ化ビニリデン系樹脂が好ましい。なお、接着層(b)
のポリメタクリル酸メチル系樹脂には、本発明の効果を
阻害しない範囲で2ーヒドロキシベンゾフェノン系、ベ
ンゾトリアゾール系、サリチル酸エステル系等の紫外線
吸収剤、さらには熱安定剤等を含んでいてもよい。Similarly, as the polymethylmethacrylate resin constituting the adhesive layer (b) of the laminated sheet used in the present invention, in addition to polymethylmethacrylate resin, other polymethylmethacrylate-based resin containing MMA (methylmethacrylate) as a main component is used. It may be a copolymer resin with a polymerizable monomer, or a mixture of two or more kinds selected from polymethyl methacrylate resin and the copolymer resin. Examples of such a copolymer resin include those made of MMA and an alkyl ester of acrylic acid having 3 to 5 carbon atoms (hereinafter, abbreviated as “acrylic acid ester”). In this case, preferred acrylic acid esters include propyl acrylate, butyl acrylate, pentyl acrylate, and the like.
Of these, butyl acrylate is particularly preferably used. The ratio of MMA and acrylic acid ester constituting the copolymer resin is, for example, in the range of 60 to 90 mol% for the former, preferably in the range of 70 to 80 mol%, and for the latter in the range of 40 to 90 mol%.
It is in the range of 10 mol%, preferably 30 to 20 mol%. The polymethylmethacrylate resin may be a mixture of polymethylmethacrylate resin or at least 60% by weight of the copolymer resin and a resin compatible with these resins. A vinylidene fluoride resin is preferable as the compatible resin. The adhesive layer (b)
The polymethylmethacrylate-based resin may contain a UV absorber such as 2-hydroxybenzophenone-based, benzotriazole-based, salicylate-based, and the like, and a heat stabilizer, etc., within a range that does not impair the effects of the present invention. .
【0013】本発明に用いる積層シートの塩化ビニル樹
脂を有する基材層(c)としては、前記接着層(b)と
接着しかつ柔軟性に優れる軟質塩化ビニル樹脂からなる
ものが好ましい。塩化ビニル樹脂には塩化ビニル単独重
合体だけでなく、塩化ビニルと酢酸ビニル等の他の単量
体とのコポリマーも含まれる。軟質塩化ビニル樹脂とし
ては前記塩化ビニル樹脂にジオクチルフタレート(DO
P)等の可塑剤を混合したものが好ましいが、塩化ビニ
ル樹脂と他の軟質樹脂とを混合したものであってもよ
い。なお基材層(c)として後記基布層(d)のうちク
ロスに軟質塩化ビニル樹脂をコーティング、ディッピン
グ、あるいはラミネートしたものを用いてもよい。この
場合は基材層(c)が基布層(d)をも兼ねることとな
る。The vinyl chloride resin-containing base material layer (c) of the laminated sheet used in the present invention is preferably made of a soft vinyl chloride resin which adheres to the adhesive layer (b) and is excellent in flexibility. Vinyl chloride resins include not only vinyl chloride homopolymers but also copolymers of vinyl chloride with other monomers such as vinyl acetate. As the soft vinyl chloride resin, dioctyl phthalate (DO
A mixture of a plasticizer such as P) is preferable, but a mixture of a vinyl chloride resin and another soft resin may be used. In addition, as the base material layer (c), a cloth obtained by coating, dipping or laminating a soft vinyl chloride resin on the cloth may be used in the base cloth layer (d) described later. In this case, the base material layer (c) also serves as the base fabric layer (d).
【0014】また本発明に用いる積層シートを構成する
基布層(d)は帆布またはターポリンからなる。これら
は積層シートの用途に応じて前記した防水処方に従って
防水性の異なるものを選択することができ、単層または
複層から成っていても良い。防水加工に使用されるター
ポリン等を構成するクロス用素材としては、綿、麻、ガ
ラス、ポリエステル樹脂、ポリアミド樹脂、ポリ塩化ビ
ニリデン樹脂、ビニロン樹脂、塩化ビニル樹脂、超高分
子量ポリエチレン樹脂、ポリスルホン系樹脂、ポリエー
テルケトン樹脂、炭素繊維、金属繊維等からなる織布ま
たは不織布などが用いられる。The base cloth layer (d) constituting the laminated sheet used in the present invention is made of canvas or tarpaulin. Those having different waterproofness can be selected according to the waterproofing prescription described above depending on the application of the laminated sheet, and may be composed of a single layer or multiple layers. Materials for cloth, such as tarpaulin used for waterproofing, are cotton, hemp, glass, polyester resin, polyamide resin, polyvinylidene chloride resin, vinylon resin, vinyl chloride resin, ultra high molecular weight polyethylene resin, polysulfone resin. A woven or non-woven fabric made of polyetherketone resin, carbon fiber, metal fiber or the like is used.
【0015】また前記クロスの防水加工に使用されるコ
ーティング用樹脂等としては塩化ビニル樹脂、アクリル
酸エステル樹脂、酢酸ビニル樹脂、ポリオレフィン樹脂
等を例示することができる。コーティング樹脂等には、
通常難燃剤や顔料が添加される。Examples of the coating resin used for waterproofing the cloth include vinyl chloride resin, acrylic ester resin, vinyl acetate resin, polyolefin resin and the like. For coating resin etc.,
Flame retardants and pigments are usually added.
【0016】本発明に用いる積層シートを構成する前記
フッ化ビニリデン系樹脂層(a)の厚さとしては、通常
0.5〜60μmの範囲、特に好ましくは1〜30μm
の範囲である。同様に接着層(b)の厚さは通常1〜5
0μm、特に好ましくは1〜20μmである。さらに塩
化ビニル樹脂を有する基材層(c)の厚さは通常10〜
100μm、好ましくは30〜50μmである。また基
布層(d)の厚さは用途によって応じて適宜選ぶことが
できるが、テント用布の場合は通常0.1〜4mmであ
る。The thickness of the vinylidene fluoride resin layer (a) constituting the laminated sheet used in the present invention is usually in the range of 0.5 to 60 μm, particularly preferably 1 to 30 μm.
Is the range. Similarly, the thickness of the adhesive layer (b) is usually 1 to 5
The thickness is 0 μm, particularly preferably 1 to 20 μm. Furthermore, the thickness of the base material layer (c) having a vinyl chloride resin is usually 10 to 10.
It is 100 μm, preferably 30 to 50 μm. The thickness of the base cloth layer (d) can be appropriately selected depending on the application, but in the case of tent cloth, it is usually 0.1 to 4 mm.
【0017】本発明による積層シートの接合方法の第一
によれば、前記の積層体(X)と(Y)の接合におい
て、接合材としてフッ化ビニリデン系樹脂層とポリメタ
クリル酸メチル系樹脂層からなる積層体(Z)片を用い
る。この積層体(Z)片を構成するフッ化ビニリデン系
樹脂およびポリメタクリル酸メチル系樹脂としては、前
記(a)および(b)として説明したものがそのまま適
用できる。According to the first method of joining laminated sheets according to the present invention, a vinylidene fluoride resin layer and a polymethylmethacrylate resin layer are used as joining materials in joining the laminates (X) and (Y). A laminate (Z) piece consisting of is used. As the vinylidene fluoride-based resin and the polymethylmethacrylate-based resin forming the laminate (Z) piece, those described in the above (a) and (b) can be applied as they are.
【0018】積層体(Z)片を用いる本発明の典型的な
接合方法を図1により説明する。図1は接合される前の
接合部分の配置を示し、1は積層体(X)を、2は積層
体(Y)を、3は積層体(Z)片の各断面図を示す。ま
た4と8はフッ化ビニリデン系樹脂層(a)を、5と9
はポリメタクリル酸メチル系樹脂接着層(b)を、6と
10は基材層(c)を、7と11は基布層(d)を、1
2はフッ化ビニリデン系樹脂層を、13はポリメタクリ
ル酸メチル系樹脂層をそれぞれ示す。図1に示すように
積層体片3はそのポリメタクリル酸メチル系樹脂層13
が内側になるように折り曲げて前記積層体1の端部を把
持する。そして積層体1の端部基布層7に接する側の積
層体片3の折り曲げ片のフッ化ビニリデン系樹脂外面層
12’が、接合する相手側積層体2の端部フッ化ビニリ
デン系樹脂層8と接するように前記積層体の折り曲げ片
を両積層体1、2で挟持する。これにより積層体1の端
部断面は積層体片3の折り曲げ部の内側に包まれて保護
されることとなり、むき出しとはならなくなる。また積
層片3の折り曲げ部の内側になるポリメタクリル酸メチ
ル系樹脂層はフッ化ビニリデン系樹脂を始め積層体1を
構成する他の樹脂とも接着性が良く、また接合部におい
ては積層体片3のフッ化ビニリデン系樹脂層12’と積
層体2のフッ化ビニリデン系樹脂層8とが接着するの
で、接合強度にも優れる。なお、本発明の前記接合方法
で用いる積層体片3は前記のような積層樹脂構成を採用
することにより、前記のような良接着性を有すると共に
やや硬く、一度折り曲げ状態を付与すると、その状態を
そのまま保つ性質を有する。従って、接合準備段階にお
いて、折り曲げた細長い積層片3を用いれば、接合面が
長くても積層体1を容易に把持させることが出来る。こ
れにより、従来技術に見られたような作業性の困難は著
しく改善される。なお、積層体片3を折り曲げ、積層体
1の端部を把持させ、さらに積層体2の端部と接合させ
る作業は通常手作業で行われるが、積層体片3の供給、
折り曲げと積層体1の把持、加熱等の工程を含む機構を
採用することにより、容易に機械化することも可能であ
る。A typical joining method of the present invention using a laminate (Z) piece will be described with reference to FIG. FIG. 1 shows the arrangement of the joints before they are joined, where 1 is a laminate (X), 2 is a laminate (Y), and 3 is a cross-sectional view of a laminate (Z) piece. Further, 4 and 8 are vinylidene fluoride resin layers (a) and 5 and 9 respectively.
Is a polymethylmethacrylate resin adhesive layer (b), 6 and 10 are base material layers (c), 7 and 11 are base cloth layers (d), 1
2 indicates a vinylidene fluoride resin layer, and 13 indicates a polymethylmethacrylate resin layer. As shown in FIG. 1, the laminate piece 3 has a polymethylmethacrylate resin layer 13
The end portion of the laminated body 1 is grasped by bending so that the inside is. The vinylidene fluoride resin outer surface layer 12 ′ of the bent piece of the laminate piece 3 on the side in contact with the end base fabric layer 7 of the laminate 1 is joined to the end vinylidene fluoride resin layer of the mating laminate 2. The folded piece of the laminated body is sandwiched by both laminated bodies 1 and 2 so as to be in contact with 8. As a result, the cross section of the end portion of the laminated body 1 is wrapped and protected inside the bent portion of the laminated body piece 3 and is not exposed. Further, the polymethylmethacrylate-based resin layer on the inner side of the bent portion of the laminated piece 3 has good adhesiveness with other resins constituting the laminated body 1 including vinylidene fluoride-based resin, and at the joint portion, the laminated piece 3 Since the vinylidene fluoride-based resin layer 12 'and the vinylidene fluoride-based resin layer 8 of the laminate 2 are adhered to each other, the bonding strength is also excellent. The laminate piece 3 used in the joining method of the present invention has the above-mentioned laminated resin configuration, and thus has good adhesiveness as described above and is slightly hard, and once it is bent, the state It has the property of keeping Therefore, in the preparatory step for joining, by using the bent elongated laminated piece 3, the laminated body 1 can be easily gripped even if the joining surface is long. This significantly improves the workability difficulties found in the prior art. The operation of bending the laminate piece 3, gripping the end portion of the laminate body 1, and further joining the end portion of the laminate body 2 is usually performed manually.
It is also possible to easily mechanize by adopting a mechanism including steps such as bending, gripping the laminated body 1, and heating.
【0019】図1に示す状態で重ね合わされた端部を加
圧下で加熱する。これにより、コ字型の積層体片3、積
層体1および2の端部からなる各接着面が接着すること
となり、積層体1と2の接合が達成される。好ましい加
熱方法については後記する。The overlapped end portions in the state shown in FIG. 1 are heated under pressure. As a result, the U-shaped laminate piece 3 and the respective bonding surfaces formed by the end portions of the laminates 1 and 2 are bonded to each other, so that the laminates 1 and 2 are joined. A preferable heating method will be described later.
【0020】図2には本発明の接合方法の第二に使用す
る特定層が他の層よりも延出して形成された積層体を示
す。すなわち図2において20はその様な積層体
(X1)を、21はフッ化ビニリデン系樹脂層(a)、
22はポリメタクリル酸メチル系樹脂層(b)、23は
基材層(c)であり、24は基布層(d)である。図か
ら明らかなように、前記21、22、23からなる層の
端部が24からなる層の端部よりも延出されて形成され
ている。このような積層体の構造は、例えば多層共押出
で層21〜23からなる積層体(ラミネートシート)を
製造し、これと基布層24とをホットプレス法やロール
ラミネート法など公知の方法で接着させる際にラミネー
トシート端が延出するようにすれば、容易に製造するこ
とができる。延出させる長さとしては、図3に示すよう
に基布層24の端部断面、下面端部の一部を覆い、接合
する片方の積層体25との接合長さを確保するに足る長
さであればよい。FIG. 2 shows a laminate in which the specific layer used in the second bonding method of the present invention extends more than other layers. That is, in FIG. 2, 20 is such a laminate (X 1 ), 21 is a vinylidene fluoride resin layer (a),
22 is a polymethylmethacrylate resin layer (b), 23 is a base material layer (c), and 24 is a base cloth layer (d). As is apparent from the drawing, the end portion of the layer made of 21, 22, 23 is formed to extend beyond the end portion of the layer made of 24. The structure of such a laminate is produced by, for example, producing a laminate (laminate sheet) including layers 21 to 23 by multi-layer coextrusion, and forming the laminate and the base fabric layer 24 by a known method such as a hot pressing method or a roll laminating method. If the edges of the laminated sheet are made to extend when they are bonded, they can be easily manufactured. The length to be extended is long enough to cover the end cross section of the base fabric layer 24 and a part of the bottom surface end as shown in FIG. 3, and to secure a joining length with one of the laminated bodies 25 to be joined. All right.
【0021】なお、前記では層21〜23からなる積層
端部が延出しているが、同様に層21および22からな
る積層端部が層23および24からなる積層部よりも延
出するように形成したものを用いても良い。In the above description, the laminated end portion made of the layers 21 to 23 is extended, but similarly, the laminated end portion made of the layers 21 and 22 is made to extend more than the laminated portion made of the layers 23 and 24. You may use what was formed.
【0022】前記積層体20の延出端部を図3に示すよ
うに積層体25の端部との間に折り曲げて挟持し、端部
全層を加圧下に加熱して接合する。なお、この場合にお
いても図1の場合と同様に、積層体20の延出積層端部
を折り曲げて積層体20自身を把持させ、さらに積層体
25との間に挟持させて接合させる作業は通常手作業で
行われるが、これらの作業工程も容易に機械化すること
が可能である。また前記延出積層端部を折り曲げて積層
体20自身を把持させ、加熱下に接着させておく工程を
両積層体の接合前にあらかじめ設けてもよい。As shown in FIG. 3, the extended end of the laminate 20 is bent and sandwiched between the end of the laminate 25 and the end of the laminate 25, and all the end layers are heated and bonded under pressure. Even in this case, as in the case of FIG. 1, the work of bending the extended stacking end of the stacked body 20 to hold the stacked body 20 itself and further sandwiching the stacked body 20 with the stacked body 25 to join them is usually performed. Although manually performed, these working steps can be easily mechanized. Further, a step of bending the extended laminated end portion to hold the laminated body 20 itself and adhering the laminated body under heating may be provided in advance before joining the laminated bodies.
【0023】フッ化ビニリデン系樹脂層(a)、ポリメ
タクリル酸メチル系樹脂接着層(b)、前記接着層
(b)に接着される帆布またはターポリンからなる基布
層(d)とからなる積層体(X2)として、前記フッ化
ビニリデン系樹脂層(a)、ポリメタクリル酸メチル系
樹脂接着層(b)とからなる積層端部を基布層(d)よ
り延出して形成させたものを用い、同様に接合すること
も可能である。A laminate comprising a vinylidene fluoride resin layer (a), a polymethylmethacrylate resin adhesive layer (b), and a base cloth layer (d) made of canvas or tarpaulin adhered to the adhesive layer (b). As the body (X 2 ), a laminated end portion composed of the vinylidene fluoride resin layer (a) and the polymethylmethacrylate resin adhesive layer (b) is formed by extending from the base cloth layer (d). It is also possible to use, and to join in the same manner.
【0024】図3において、前記のような延出端部を非
延出端部と接合される相手側積層体端部の間に折り曲げ
て挟持し接合させる場合、非延出端部の下面と折り曲げ
られた延出部との接着性はその樹脂構成から良好であ
り、特に問題とならない。また延出端部のフッ化ビニリ
デン系樹脂上面層21は積層体25のフッ化ビニリデン
系樹脂上面層26と接着することになるので、その接着
性も良好である。In FIG. 3, when the extending end portion as described above is bent and sandwiched between the end portions of the mating laminated body to be joined with the non-extending end portion, and they are joined together, the bottom surface of the non-extending end portion is Adhesiveness to the bent extension is good because of its resin composition, and there is no particular problem. Further, since the vinylidene fluoride resin upper surface layer 21 at the extending end portion is bonded to the vinylidene fluoride resin upper surface layer 26 of the laminated body 25, its adhesiveness is also good.
【0025】図1および図3に示す本発明のいずれの接
合方法によっても、積層体1や積層体20の端部断面は
積層体片3や積層延出端部により保護されることにな
り、むき出し状態になることを防ぐことができる。By any of the joining methods of the present invention shown in FIGS. 1 and 3, the end section of the laminate 1 or the laminate 20 is protected by the laminate piece 3 or the laminate extension end. It is possible to prevent it from being exposed.
【0026】図1または図3に示すように、接合の準備
を整えたのち、接合部を加圧下に加熱する。このような
加熱方法としては特に限定されるものではないが、高周
波ウエルド処理して接合することが好ましい。特にテン
ト用布を製造する際にこのような高周波ウエルド処理が
有利であるのは、作業性を上げるため適当な大きさにカ
ットした積層シートの端部同士をテントの構造に従って
重ね合わせて接合する場合である。なおこのような作業
は、テント以外にも通常のシートや構造物を製造する際
にも行われる。As shown in FIG. 1 or FIG. 3, after preparing for joining, the joining portion is heated under pressure. Although such a heating method is not particularly limited, it is preferable to perform high-frequency welding treatment for joining. In particular, when manufacturing a tent cloth, such a high-frequency welding treatment is advantageous because the end portions of the laminated sheets cut into appropriate sizes are superposed and joined according to the tent structure in order to improve workability. This is the case. It should be noted that such work is also performed when manufacturing ordinary sheets and structures other than the tent.
【0027】高周波ウエルド処理は、被処理物の内部自
己発熱を利用する誘電加熱である。前記積層シートを高
周波ウエルド処理するには、前記のような接合部となる
処理部を一対の平面電極で挟み、加圧しながら高周波を
照射する。高周波ウエルド処理条件としては、通常0.
4〜100MHz、特には27.12MHzまたは4
0.46MHzの2種類の周波数が用いられ、電流0.
05〜10A、プレス圧0.5〜20Kg/cm2、加
電時間1〜60秒であり、ウエルド幅(接合幅)は適宜
に決めればよいが、テント用布の場合は通常5〜70m
mであることが好ましい。The high-frequency weld process is a dielectric heating that utilizes the internal self-heating of the object to be processed. In order to perform a high-frequency weld treatment on the laminated sheet, a treatment portion to be the above-mentioned joint portion is sandwiched between a pair of flat electrodes, and high-frequency radiation is applied while applying pressure. The high-frequency weld processing condition is usually 0.
4-100 MHz, especially 27.12 MHz or 4
Two frequencies of 0.46 MHz are used and current of 0.
05 to 10 A, press pressure 0.5 to 20 Kg / cm 2 , charging time 1 to 60 seconds, and the weld width (joint width) may be appropriately determined, but in the case of tent cloth, it is usually 5 to 70 m.
It is preferably m.
【0028】[0028]
【実施例】以下、本発明について実施例により具体的に
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。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.
【0029】(実施例1)厚さ4μmのフッ化ビニリデ
ン樹脂(呉羽化学工業株式会社製「KF#1000」、
対数粘度1.0dl/g)層、厚さ6μmの接着層、厚
さ90mmの軟質塩化ビニル樹脂(可塑剤DOP40P
HR配合した塩化ビニル樹脂)層がこの順に積層された
全厚さ100μm、幅1020mmのラミネートシート
を共押出法により製造した。接着層を構成する樹脂組成
物の構成成分としては、MMAとアクリル酸ブチルの共
重合体樹脂(MMA/アクリル酸ブチルのモル比=80
/20、温度230℃、荷重5Kgにおけるメルトイン
デックス3g/10分、以下「共重合体樹脂」と略す)
90重量%とフッ化ビニリデン樹脂(呉羽化学工業株式
会社製「KF#1000」)10重量%の混合組成物を
用いた。なお、共重合体樹脂にはチバガイギー株式会社
製ベンゾトリアゾール系紫外線吸収剤「チヌビン32
7」を6PHR配合した。Example 1 Vinylidene fluoride resin having a thickness of 4 μm (“KF # 1000” manufactured by Kureha Chemical Industry Co., Ltd.,
Logarithmic viscosity 1.0 dl / g) layer, thickness 6 μm adhesive layer, thickness 90 mm soft vinyl chloride resin (plasticizer DOP40P
A laminated sheet having a total thickness of 100 μm and a width of 1020 mm, in which HR-blended vinyl chloride resin layers were laminated in this order, was produced by a coextrusion method. As a constituent component of the resin composition constituting the adhesive layer, a copolymer resin of MMA and butyl acrylate (MMA / butyl acrylate molar ratio = 80
/ 20, temperature 230 ° C., load index 5 g, melt index 3 g / 10 min, hereinafter abbreviated as “copolymer resin”)
A mixed composition of 90% by weight and 10% by weight of vinylidene fluoride resin (“KF # 1000” manufactured by Kureha Chemical Industry Co., Ltd.) was used. The copolymer resin is a benzotriazole-based UV absorber "Tinuvin 32" manufactured by Ciba-Geigy Co., Ltd.
7 "was blended for 6 PHR.
【0030】前記した幅1020mmのラミネートシー
トと幅1000mmのテント基布(ポリエステル樹脂製
クロスに軟質塩化ビニル樹脂をコーティングしたもの)
を、片側に表面温度165℃の金属ロール、他方に表面
温度50℃のシリコンゴムロールで金属ロール側にラミ
ネートが来るようにして、連続的に加熱圧着した。この
時、ラミネートシートはテント基布より20mm延出し
た状態となる。この延出端部をテント基布に巻き込みな
がら、延出端部のみを表面温度165℃の金属ロールと
表面がシリコンゴムロールで連続的にテント基布に加熱
圧着した。The above-mentioned laminated sheet having a width of 1020 mm and a tent base cloth having a width of 1000 mm (polyester resin cloth coated with soft vinyl chloride resin)
Was continuously heat-pressed with a metal roll having a surface temperature of 165 ° C. on one side and a silicone rubber roll having a surface temperature of 50 ° C. on the other side so that the laminate came to the metal roll side. At this time, the laminated sheet is in a state of extending 20 mm from the tent base cloth. While winding the extended end portion around the tent base cloth, only the extended end portion was continuously thermocompression-bonded to the tent base cloth with a metal roll having a surface temperature of 165 ° C. and a silicon rubber roll surface.
【0031】上記で得られた積層体のテント基布層に巻
き込んだ延出端部のラミネートシートのフッ化ビニリデ
ン樹脂層と上記積層体の延出していない端部のラミネー
トシートのフッ化ビニリデン樹脂層とを図3に示すよう
に対向させて合わせた。この際、積層体同士の各端部1
0mmを重ね合わせた。この部分を高周波ウエルド処理
(ウエルド幅1cm)により接合した。ウエルド処理は
山本ビニター株式会社製高周波ウエルダー「YF−70
00」を用い、周波数40.46MHz、プレス圧4K
g/cm2、電流1.0A。加電時間5秒、冷却時間
(加熱後、プレスしたままの状態で放置する時間)10
秒で行った。接合シートの高周波ウエルド処理部分の接
合強度およびサンシャインウエザーメーターで1000
時間(降雨サイクル60分中12分、ブラックパネル温
度63℃)照射後の接合強度を測定した。サンシャイン
ウエザーメーターはスガ試験機株式会社製「サンシャイ
ンスーパーロングライフウエザーメーターWEL−SU
N−HC型」を用いた。接合強度の測定条件は、試長1
00mm、試幅5mm、引張速度20mm/分および測
定温度65℃である。測定結果を表−1に示す。The vinylidene fluoride resin layer of the laminate sheet at the extended end wound around the tent base cloth layer of the laminate obtained above and the vinylidene fluoride resin of the laminate sheet at the non-extended end of the laminate. The layers were face-to-face combined as shown in FIG. At this time, each end portion 1 of the laminated bodies
0 mm was overlapped. This portion was joined by a high frequency weld process (weld width 1 cm). Welding is done by Yamamoto Vinita Co., Ltd. high frequency welder "YF-70".
00 ", frequency 40.46MHz, press pressure 4K
g / cm 2 , current 1.0A. Charging time 5 seconds, cooling time (time after heating, leaving in the pressed state) 10
Went in seconds. The bonding strength of the high-frequency welded part of the bonding sheet and 1000 with the sunshine weather meter
The bonding strength after irradiation for time (12 minutes in 60 minutes of rain cycle, black panel temperature of 63 ° C.) was measured. Sunshine weather meter is "Sunshine Super Long Life Weather Meter WEL-SU" manufactured by Suga Test Instruments Co., Ltd.
N-HC type "was used. The bond strength measurement condition is trial length 1
00 mm, test width 5 mm, tensile speed 20 mm / min and measurement temperature 65 ° C. The measurement results are shown in Table-1.
【0032】(実施例2)実施例1で用いたラミネ−ト
シ−ト(但し、幅1000mm)の軟質塩化ビニル樹脂
側に、実施例1で用いたテント基布(幅1000mm)
を165℃の熱プレスでラミネ−トし、四層積層体を製
造した。さらに、前記ラミネ−トシ−トの軟質塩化ビニ
ル樹脂層を除いた二層シ−トを幅1000mmとして共
押出法により製造し、幅40mmの短冊状に裁断し積層
体片を得た。この二層からなる積層体片の接着層が内側
になるように、U字型にした金型ガイドを用い、60℃
の金属ロ−ル、片側がシリコンゴムロ−ルのピンチロ−
ル(ロール径は直径150mm、ロール幅100mm)
に導き、ピンチ圧4Kg/cm2で折り曲げた。得られ
たU字積層体片により前記四層積層体の端部を把持さ
せ、165℃の熱プレスで接着させた。次いで四層積層
体の端部基布層に接するU字積層体片のフッ化ビニリデ
ン樹脂外面と前記と同様にして得た他の四層積層体のラ
ミネ−トシ−トを構成するフッ化ビニリデン樹脂面の各
端部10mmを図1に示すように重ね合わせた。実施例
1と同様に高周波ウェルド処理(ウェルド幅1cm)に
より接合し、接合強度およびサンシャインウエザ−メ−
タ−で1000時間照射後の接着強度を測定した。測定
結果を表−1に示す。(Example 2) The tent base cloth (width 1000 mm) used in Example 1 was placed on the soft vinyl chloride resin side of the laminate sheet (width 1000 mm) used in Example 1.
Was laminated with a hot press at 165 ° C. to produce a four-layer laminate. Further, a two-layer sheet excluding the soft vinyl chloride resin layer of the laminate sheet was manufactured by a coextrusion method with a width of 1000 mm, and cut into strips with a width of 40 mm to obtain laminate pieces. Using a U-shaped mold guide so that the adhesive layer of the two-layer laminate piece is on the inside, 60 ° C
Metal roll, one side is silicone rubber roll pinch roll
(Roll diameter is 150 mm, roll width is 100 mm)
And bent with a pinch pressure of 4 Kg / cm 2 . The end portion of the four-layered laminate was held by the obtained U-shaped laminate piece and bonded by a hot press at 165 ° C. Next, the vinylidene fluoride resin outer surface of the U-shaped laminate piece in contact with the end base fabric layer of the four-layer laminate and the vinylidene fluoride constituting the laminate sheet of the other four-layer laminate obtained as described above. 10 mm of each end of the resin surface was overlapped as shown in FIG. As in Example 1, they were joined by high-frequency welding treatment (weld width 1 cm) to obtain the joining strength and sunshine weather-meal.
The adhesive strength after irradiation for 1000 hours was measured with a magnetic tape. The measurement results are shown in Table-1.
【0033】(比較例1)実施例で用いたラミネートシ
ート(但し、幅1000mm)の軟質塩化ビニル樹脂側
に、実施例で用いたテント基布(幅1000mm)を1
65℃の熱プレスでラミネートした。次いで得られた積
層体のテント基布層にメタクリル酸メチル樹脂の薄いコ
ーティング皮膜を形成した。コーティング条件は、メタ
クリル酸メチル樹脂のメチルエチルケトン溶液(濃度1
5%)をメイヤーバーにて6μmになるように塗布し
た。こうして得られた二枚の積層体の各端部10mmの
部分同士を上下に重ね合わせ、実施例と同様に高周波ウ
エルド処理(ウエルド幅1cm)により接合し、接合強
度を測定した。測定結果を表−1に示す。(Comparative Example 1) The tent base cloth (width 1000 mm) used in the example was placed on the soft vinyl chloride resin side of the laminate sheet (width 1000 mm) used in the example.
It was laminated by a hot press at 65 ° C. Then, a thin coating film of methyl methacrylate resin was formed on the tent base fabric layer of the obtained laminate. The coating conditions are methyl methacrylate solution of methyl methacrylate resin (concentration 1
5%) was applied with a Mayer bar to a thickness of 6 μm. The 10 mm portions at the ends of each of the two laminated bodies thus obtained were vertically overlapped with each other and joined by high-frequency welding treatment (weld width 1 cm) in the same manner as in the example, and the joining strength was measured. The measurement results are shown in Table-1.
【0034】[0034]
【表1】 [Table 1]
【0035】[0035]
【発明の効果】以上詳細に説明したように、本発明によ
り、接合作業性が良く、接合強度にも優れ、さらには接
合端部断面の劣化も防止された積層シートの接合方法が
提供できることとなった。本発明を用いることにより、
積層シートから接合部の接合強度に優れたテント、各種
シート等の構造物を得ることができる。As described above in detail, according to the present invention, it is possible to provide a method for joining laminated sheets, which has good workability in joining, excellent joining strength, and is also capable of preventing deterioration of the cross section of the joining end. became. By using the present invention,
It is possible to obtain a structure such as a tent and various sheets having excellent bonding strength at the bonded portion from the laminated sheet.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の接合方法を示す説明図である。FIG. 1 is an explanatory view showing a joining method of the present invention.
【図2】本発明の接合方法の一態様において使用する積
層シートの端部を示す説明図である。FIG. 2 is an explanatory view showing an end portion of a laminated sheet used in one embodiment of the joining method of the present invention.
【図3】本発明の別の接合方法を示す説明図である。FIG. 3 is an explanatory view showing another joining method of the present invention.
1 積層体(X)の端部 2 積層体(Y)の端部 3 積層体(Z)片 1 End of Laminate (X) 2 End of Laminate (Y) 3 Laminate (Z) Piece
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水野 斌也 茨城県土浦市東崎町13番地1−201 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinya Mizuno 1-201 13 Higashisaki-cho, Tsuchiura-shi, Ibaraki
Claims (5)
(a)、他表面に帆布またはターポリンからなる基布層
(d)を有し、それらの間にポリメタクリル酸メチル系
樹脂接着層(b)を含む積層体(X)の端部と前記
(X)と同一構造からなる積層体(Y)の端部とを前記
積層体(X)の基布層(d)と前記積層体(Y)のフッ
化ビニリデン系樹脂層(a)を対向させて接合する方法
において、接合材としてフッ化ビニリデン系樹脂層とポ
リメタクリル酸メチル系樹脂層からなる積層体(Z)片
を用い、かつ前記積層体(Z)片をポリメタクリル酸メ
チル系樹脂層が内側になるように折り曲げて前記積層体
(X)の端部を把持し、かつ積層体(X)の端部基布層
に接する前記折り曲げ片のフッ化ビニリデン系樹脂外面
層が前記積層体(Y)の端部フッ化ビニリデン系樹脂層
(a)と接するように積層体(X)の端部と積層体
(Y)の端部の間に前記折り曲げ片を挟持し、前記折り
曲げた積層体(Z)片と前記挟持した端部を加圧下で加
熱することを特徴とする積層シートの接合方法。1. A vinylidene fluoride resin layer (a) on one surface and a base cloth layer (d) made of canvas or tarpaulin on the other surface, and a polymethylmethacrylate resin adhesive layer (b) between them. And an end portion of a laminate (Y) having the same structure as that of (X) and a base fabric layer (d) of the laminate (X) and the laminate (Y). In the method for adhering the vinylidene fluoride resin layer (a) to each other, the laminate (Z) piece comprising a vinylidene fluoride resin layer and a polymethylmethacrylate resin layer is used as a bonding material, and The piece of the laminate (Z) is bent so that the polymethylmethacrylate-based resin layer is on the inner side, grips the end of the laminate (X), and is in contact with the end fabric layer of the laminate (X). The vinylidene fluoride resin outer surface layer of the bent piece is an end portion of the laminate (Y). The bent piece is sandwiched between the end of the laminate (X) and the end of the laminate (Y) so as to be in contact with the vinylidene fluoride resin layer (a), and the bent laminate (Z) piece is formed. A method for joining laminated sheets, characterized in that the sandwiched ends are heated under pressure.
ビニリデン系樹脂層(a)、ポリメタクリル酸メチル系
樹脂接着層(b)、前記接着層(b)に接着される塩化
ビニル樹脂を有する基材層(c)、および前記基材層
(c)に接着される帆布またはターポリンからなる基布
層(d)とからなることを特徴とする請求項1記載の積
層シートの接合方法。2. The vinyl chloride in which the laminates (X) and (Y) are both bonded to the vinylidene fluoride resin layer (a), the polymethylmethacrylate resin adhesive layer (b), and the adhesive layer (b). The joining of laminated sheets according to claim 1, comprising a base material layer (c) having a resin, and a base cloth layer (d) made of canvas or tarpaulin adhered to the base material layer (c). Method.
メタクリル酸メチル系樹脂接着層(b)、前記接着層
(b)に接着される帆布またはターポリンからなる基布
層(d)とからなる積層体(X1)の端部と前記積層体
(X1)と同一構造からなる(Y1)の端部とを前記積層
体(X1)の基布層(d)と前記積層体(Y1)のフッ化
ビニリデン系樹脂層(a)を対向させて接合する方法に
おいて、積層体(X1)として前記フッ化ビニリデン系
樹脂層(a)とポリメタクリル酸メチル系樹脂層(b)
からなる層の端部が基布層(d)からなる層の端部より
も延出して形成された積層体を用い、かつ前記延出部の
フッ化ビニリデン系樹脂層(a)が前記積層体(Y1)
のフッ化ビニリデン系樹脂層(a)と接するように前記
延出部を積層体(X1)の非延出端部と積層体(Y1)の
端部の間に折り曲げて挟持し、前記挟持した端部を加圧
下で加熱することを特徴とする積層シートの接合方法。3. A vinylidene fluoride resin layer (a), a polymethylmethacrylate resin adhesive layer (b), and a base cloth layer (d) made of canvas or tarpaulin adhered to the adhesive layer (b). laminate (X 1) of the same structure end and the laminate and (X 1) of the (Y 1) end and the laminate of (X 1) the base fabric layer (d) and the laminate comprising In the method of facing and bonding the vinylidene fluoride resin layer (a) of (Y 1 ), the vinylidene fluoride resin layer (a) and the polymethylmethacrylate resin layer (b) are used as a laminate (X 1 ). )
A laminated body formed by extending the end portion of the layer formed of the base fabric layer (d) beyond the end portion of the layer formed of the base fabric layer (d), and the vinylidene fluoride resin layer (a) of the extending portion is formed by the lamination. Body (Y 1 )
And clamping by bending between the ends of the vinylidene fluoride resin layer laminate the extending portion to be in contact with (a) non-extended end and the laminate of (X 1) (Y 1) , wherein A method for joining laminated sheets, which comprises heating the sandwiched ends under pressure.
メタクリル酸メチル系樹脂接着層(b)、前記接着層
(b)に接着される塩化ビニル樹脂を有する基材層
(c)、および前記基材層(c)に接着される帆布また
はターポリンからなる基布層(d)とからなる積層体
(X2)の端部と前記積層体(X2)と同一構造からなる
(Y2)の端部とを前記積層体(X2)の基布層(d)と
前記積層体(Y2)のフッ化ビニリデン系樹脂層(a)
を対向させて接合する方法において、積層体(X2)と
して前記フッ化ビニリデン系樹脂層(a)とポリメタク
リル酸メチル系樹脂層(b)からなる層の端部が基材層
(c)および基布層(d)からなる層の端部よりも延出
して形成された積層体であるかまたは前記フッ化ビニリ
デン系樹脂層(a)、ポリメタクリル酸メチル系樹脂層
(b)および基材層(c)からなる層の端部が基布層
(d)の端部よりも延出して形成された積層体を用い、
かつ前記延出部のフッ化ビニリデン系樹脂層(a)が前
記積層体(Y2)のフッ化ビニリデン系樹脂層(a)と
接するように前記延出部を積層体(X2)の非延出端部
と積層体(Y2)の端部の間に折り曲げて挟持し、前記
挟持した端部を加圧下で加熱することを特徴とする積層
シートの接合方法。4. A vinylidene fluoride resin layer (a), a polymethylmethacrylate resin adhesive layer (b), a base layer (c) having a vinyl chloride resin adhered to the adhesive layer (b), and The laminate (X 2 ) has the same structure as that of the end portion of the laminate (X 2 ) including the base fabric layer (d) made of canvas or tarpaulin adhered to the base layer (c) (Y 2 ) Of the laminate (X 2 ) and the vinylidene fluoride resin layer (a) of the laminate (Y 2 ).
In the method of facing each other and bonding, the end portion of the layer composed of the vinylidene fluoride resin layer (a) and the polymethylmethacrylate resin layer (b) as the laminate (X 2 ) is the base material layer (c). And a laminate formed by extending from the end portion of the layer composed of the base fabric layer (d), or the vinylidene fluoride resin layer (a), the polymethylmethacrylate resin layer (b) and the base. Using a laminate in which the end of the layer composed of the material layer (c) extends beyond the end of the base fabric layer (d),
In addition, the extension portion of the laminated body (X 2 ) is formed so that the vinylidene fluoride resin layer (a) of the extended portion is in contact with the vinylidene fluoride resin layer (a) of the laminated body (Y 2 ). A method for joining laminated sheets, which comprises bending and sandwiching between the extended end portion and the end portion of the laminate (Y 2 ) and heating the sandwiched end portion under pressure.
あることを特徴とする請求項1ないし4のいずれかに記
載の積層シートの接合方法。5. The method for joining laminated sheets according to claim 1, wherein the heating under pressure is a high-frequency weld treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3425993A JPH06226852A (en) | 1993-01-29 | 1993-01-29 | Bonding of laminated sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3425993A JPH06226852A (en) | 1993-01-29 | 1993-01-29 | Bonding of laminated sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06226852A true JPH06226852A (en) | 1994-08-16 |
Family
ID=12409183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3425993A Pending JPH06226852A (en) | 1993-01-29 | 1993-01-29 | Bonding of laminated sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06226852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0722173A1 (en) * | 1995-01-11 | 1996-07-17 | Elf Atochem North America, Inc. | Radiation-shielding polymeric compositions |
| CN102941672A (en) * | 2011-11-11 | 2013-02-27 | 郏帅军 | Method for processing single-layer or multilayer cloth plastic hot-water bag |
-
1993
- 1993-01-29 JP JP3425993A patent/JPH06226852A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0722173A1 (en) * | 1995-01-11 | 1996-07-17 | Elf Atochem North America, Inc. | Radiation-shielding polymeric compositions |
| CN102941672A (en) * | 2011-11-11 | 2013-02-27 | 郏帅军 | Method for processing single-layer or multilayer cloth plastic hot-water bag |
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