JPH02167745A - Composite sheet having emboss pattern forming capacity - Google Patents
Composite sheet having emboss pattern forming capacityInfo
- Publication number
- JPH02167745A JPH02167745A JP21673289A JP21673289A JPH02167745A JP H02167745 A JPH02167745 A JP H02167745A JP 21673289 A JP21673289 A JP 21673289A JP 21673289 A JP21673289 A JP 21673289A JP H02167745 A JPH02167745 A JP H02167745A
- Authority
- JP
- Japan
- Prior art keywords
- film
- filler
- voids
- composite sheet
- polyester
- 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
- 239000002131 composite material Substances 0.000 title claims description 30
- 229920000728 polyester Polymers 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 25
- 239000011800 void material Substances 0.000 claims abstract description 17
- 238000010030 laminating Methods 0.000 abstract description 10
- 238000004049 embossing Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 16
- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 13
- 239000002985 plastic film Substances 0.000 description 13
- 229920006255 plastic film Polymers 0.000 description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 229920001721 polyimide Polymers 0.000 description 10
- 230000037303 wrinkles Effects 0.000 description 10
- 239000004744 fabric Substances 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 9
- 229920000297 Rayon Polymers 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 239000002964 rayon Substances 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000003851 corona treatment Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000270722 Crocodylidae Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複合シートに関する。さらに詳しくは、凹凸
模様形成能を有する複合シートに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite sheet. More specifically, the present invention relates to a composite sheet having the ability to form an uneven pattern.
本発明の複合シートは、バッグ、装丁、文具などの雑貨
の用途は勿論、壁材、壁装材、家具、インテリアなどに
も用いられ、いろいろな用途に展開できる。The composite sheet of the present invention can be used not only for miscellaneous goods such as bags, bindings, and stationery, but also for wall materials, wall coverings, furniture, interior decoration, etc., and can be used for a variety of purposes.
プラスチックフィルムに凹凸模様を形成する方法として
、エンボス加工、揉み加工などが知られている。Embossing, rolling, and the like are known methods for forming uneven patterns on plastic films.
しかしながら、ポリイミド系フィルムに代表される耐熱
フィルムは、それ自体では、常温では勿論、熱可塑性で
ないために高温でも、凹凸模様の形成が不可能であり、
これまで表面に皺付け、揉み、エンボスなどの凹凸模様
を有するものは知られていない。本発明は、そのような
それ自体では凹凸模様の形成が困難な耐熱フィルムにも
凹凸模様を形成することができる複合シートを提供する
ものである。However, heat-resistant films such as polyimide films cannot form uneven patterns by themselves, not only at room temperature but also at high temperatures because they are not thermoplastic.
Up to now, no material having an uneven pattern such as wrinkles, rubbing, or embossing on the surface has been known. The present invention provides a composite sheet that can form an uneven pattern even on such a heat-resistant film that is difficult to form an uneven pattern on itself.
本発明の凹凸模様形成能を有する複合シートは、フィラ
ーを含有するポリエステルからなりフィラー周辺にボイ
ドを有する延伸フィルムＢに可撓性基体シートＣが積層
されていることを特徴とする。The composite sheet having the ability to form an uneven pattern of the present invention is characterized in that a flexible base sheet C is laminated on a stretched film B made of polyester containing a filler and having voids around the filler.
本発明の複合シートを構成するフィルムＢは、フィラー
を含有するポリエステルからなリフィラ−周辺にボイド
を有する延伸フィルムである。このフィルムは、ポリエ
ステルにフィラーを含有させてフィルム状に溶融押出し
次いで延伸することによりつくることができ、表面凹凸
加工の際にボイドの一部がつぶれて永久歪（変形）を起
こし凹凸が維持されるものである。Film B constituting the composite sheet of the present invention is a stretched film having voids around the refiller made of polyester containing filler. This film can be made by melt-extruding polyester containing a filler and then stretching it into a film form. During surface roughening, some of the voids are crushed, causing permanent deformation (deformation) and maintaining the roughness. It is something that
フィルムＢに使用するポリエステルとしては、公知のポ
リエステルが適用できる。As the polyester used for film B, known polyesters can be used.
フィルムＢに使用するフィラーとしては、炭酸カルシウ
ム、炭酸マグネシウム、酸化マグネシウム、アルミナ、
珪酸アルミニウム、カオリン、カオリナイト、タルク、
クレイ、珪藻土、ドロマイト、酸化チタン、ゼオライト
などの無機粒子若しくはフィルムＢに使用するポリエス
テルと異なる合成樹脂の粒子の単体又はそれらの混合物
が用いられる。フィラーの添加量は１０〜４０重量％が
好ましく、１５〜３５重量％がより好ましい。添加量が
少なすぎると凹凸が形成されにくく、添加量が多すぎる
と脆くなり延伸時に破れが生じフィルム化が難しい。Fillers used for film B include calcium carbonate, magnesium carbonate, magnesium oxide, alumina,
aluminum silicate, kaolin, kaolinite, talc,
Inorganic particles such as clay, diatomaceous earth, dolomite, titanium oxide, and zeolite, or particles of a synthetic resin different from the polyester used in Film B, may be used alone or in a mixture thereof. The amount of filler added is preferably 10 to 40% by weight, more preferably 15 to 35% by weight. If the amount added is too small, it will be difficult to form unevenness, and if the amount added is too large, it will become brittle and break during stretching, making it difficult to form a film.
フィルムＢの延伸は、ボイドの形成される条件であれば
よく、−軸延伸、二軸延伸のいずれでもよい。Film B may be stretched under any conditions as long as voids are formed, and either -axial stretching or biaxial stretching may be used.
フィルムＢのボイド率は３０％以上６０％以下が好まし
く、３０％以上５５％以下がより好ましい。ボイド率（
％）は、ボイドを有するフィルムの密度をρ０とし、そ
のフィルムをその成分のポリエステルの融点近くで熱圧
着しボイド部分を埋めたフィルムの密度をρとし、次式
で定義する（なお、フィルムの密度は、フィルムの重量
と容積（厚さ×面積）から計算する）。The void ratio of the film B is preferably 30% or more and 60% or less, more preferably 30% or more and 55% or less. Void rate (
%) is defined by the following formula, where ρ0 is the density of a film with voids, and ρ is the density of a film whose voids are filled by thermocompression bonding near the melting point of the polyester component. Density is calculated from the weight and volume of the film (thickness x area).
ボイド率＝（ρ−ρｏ）／ρ×１００
但し、ρ０ ：ボイドを有するフィルムの密度ρ ：当
該フィルムの圧着後の密度
ボイド率が小さすぎると、凹凸が形成されにくく、一方
、ボイド率が大きすぎると、ボイド部分が多（存在し、
永久歪の凹凸形成はされるが、脆いフィルムとなり、強
度に問題が生じる。Void ratio = (ρ - ρo) / ρ × 100 However, ρ0: Density of the film with voids ρ: Density of the film after pressure bonding If the void ratio is too small, unevenness will be difficult to form; If it is too large, there will be many voids (existence),
Although permanent deformation irregularities are formed, the film becomes brittle and a problem arises in strength.
所定のボイド率を得るには、フィルムの製膜条件を適宜
選択すればよい。例えば、延伸倍率を上げるとボイド率
は大きくなり、延伸温度を上げるとボイド率は大きくな
り、またフィラーの含有量即ち添加量を増すとボイド率
は大きくなる。In order to obtain a predetermined void ratio, film forming conditions may be appropriately selected. For example, increasing the stretching ratio increases the void ratio, increasing the stretching temperature increases the void ratio, and increasing the filler content, that is, the amount added, increases the void ratio.
フィルムＢのボイド率は必ずしもフィルムの厚さ方向に
均一である必要はなく、例えば、表層近傍はボイド率が
低く又はボイドがなくてもよい。The void ratio of the film B does not necessarily have to be uniform in the thickness direction of the film; for example, the void ratio may be low or void-free near the surface layer.
むしろ、フィルムＢの表面にボイドが多く存在すると、
その表面は強靭でなく接着性に劣るので、フィルムＡと
の接着が不充分となりやすく、表面凹凸加工時又は実用
時に剥離を生じることがあるので、この欠点を回避する
ために、好ましくは、フィルムＢは、その少なくとも片
方の表層近傍にはボイドのないようなフィルムであるの
がよい。Rather, if there are many voids on the surface of film B,
Since its surface is not strong and has poor adhesion, adhesion with film A tends to be insufficient, and peeling may occur during surface roughening or during practical use.In order to avoid this drawback, preferably, the film B is preferably a film that has no voids near at least one surface layer thereof.
このようなフィルムは、フィラー添加量の異なる２種以
上のポリエステルを共押出、又はフィラーを添加したポ
リエステルとフィラーを添加しないポリエステルとを共
押出してフィルム状にし延伸することにより得られる。Such a film can be obtained by coextruding two or more types of polyesters with different amounts of filler added, or by coextruding a polyester with a filler added and a polyester without a filler added, forming a film, and stretching it.
また、フィラー添加量の異なるポリエステル又はフィラ
ーを添加したポリエステルとフィラーを添加しないポリ
エステルの各ポリエステル層の一方を縦方向に延伸後、
他層を積層して横方向に延伸しても得られる。具体的に
その製造方法を例示すれば、ポリエステルに炭酸カルシ
ウムなどをフィラーとして１０〜４０重量％添加したも
のと、フィラーを添加しないポリエステルとを共押出し
く厚さ比として、フィラーを含有しない層／フィラーを
含有する層＝０゜０１〜０．２）、縦、横方向に約１５
〜５０倍（縦×横）延伸し、熱固定し、表面濡れ張力が
好ましくは４０ ｄ ｙ ｎ ｅ ／ ｃ ｍ以上にな
るようにフィラーを添加しないポリエステル層表面を空
気中又は不活性ガス雰囲気でコロナ放電処理する。In addition, after stretching one side of each polyester layer of polyester with different amounts of filler or polyester with filler and polyester without filler in the longitudinal direction,
It can also be obtained by laminating other layers and stretching in the transverse direction. To give a specific example of the manufacturing method, a layer containing no filler/a layer containing no filler/a layer containing no filler/ Layer containing filler = 0°01~0.2), about 15% in the vertical and horizontal directions
Stretch ~50 times (length x width), heat set, and dry the surface of the polyester layer without any filler in air or in an inert gas atmosphere so that the surface wetting tension is preferably 40 dyne/cm or more. Corona discharge treatment.
フィルムＢの厚さは、特に限定されないが、好ましくは
３０〜１５０μｍ１より好ましくは６０〜１２０μｍで
ある。The thickness of the film B is not particularly limited, but is preferably 30 to 150 μm, more preferably 60 to 120 μm.
本発明の複合シートにおいて、凹凸模様形成能は、本来
的にフィルムＢが有しているが、可撓性基体シートＣを
積層すると、より凹凸が形成されやすくなり、またクツ
ション性や縫製性がよくなる。可撓性基体シートに用い
られる素材としては、天然繊維若しくは化学繊維（例え
ば、レーヨン、ポリエステル、ポリアミド）からなる織
物・不織布、紙、熱可塑性合成樹脂シートなどが用いら
れる。耐熱フィルムに本発明の複合シートを積層して凹
凸模様を形成し耐熱シートを作ろうとする場合は、可撓
性基体シートとして難燃紙、難燃加工織物又はその他の
耐熱性の基材（例えば、耐熱ポリアミド繊維からなる織
物）を使用するとさらに特徴が出せる。In the composite sheet of the present invention, film B inherently has the ability to form an uneven pattern, but when the flexible base sheet C is laminated, unevenness is more likely to be formed, and the cushioning properties and sewing properties are reduced. get well. Materials used for the flexible base sheet include woven and nonwoven fabrics made of natural fibers or chemical fibers (eg, rayon, polyester, polyamide), paper, thermoplastic synthetic resin sheets, and the like. When trying to make a heat-resistant sheet by laminating the composite sheet of the present invention on a heat-resistant film to form an uneven pattern, flame-retardant paper, flame-retardant processed fabric, or other heat-resistant base material (e.g. Further features can be obtained by using fabrics made of heat-resistant polyamide fibers.
可撓性基体シートＣの厚さは、特に限定するものではな
く、本発明の複合シートの用途に応じて適宜選択し得る
が、例えば２０μｍ〜５ｍｍのものが用いられる。The thickness of the flexible base sheet C is not particularly limited and can be appropriately selected depending on the use of the composite sheet of the present invention, and for example, a thickness of 20 μm to 5 mm is used.
フィルムＢと可撓性基体シートＣを積層する手段は、特
に限定するものではないが、通常、接着剤を使用する。The means for laminating the film B and the flexible base sheet C is not particularly limited, but an adhesive is usually used.
凹凸形成又は実用時にこれらの層が剥離しないだけの接
着力の得られるものであれば、接着剤の種類は特に限定
されないが、基体シー４Ｃの素材に応じて、それと親和
性のよい接着剤を適宜選択すればよい。例えば合成樹脂
系（ポリウレタン系、アクリル系）の接着剤が使用でき
る。The type of adhesive is not particularly limited as long as it has enough adhesive strength to prevent these layers from peeling off during uneven formation or practical use, but depending on the material of the base sheet 4C, an adhesive with good compatibility with it may be used. You can select it as appropriate. For example, a synthetic resin adhesive (polyurethane type, acrylic type) can be used.
本発明の複合シートは、通常では凹凸模様を形成するこ
とが困難な融点をもたない耐熱フィルムに積層し、該耐
熱フィルム表面に凹凸模様を形成するために用いること
ができる。ポリイミドフィルム等の融点をもたない耐熱
フィルムは、高温においてすら凹凸成型が不可能である
が、本発明の複合シートを一体積層することにより、常
温でも、揉み加工等で表面に凹凸模様を形成することが
できるようになる。この場合、本発明の複合シートのボ
イドを有する延伸フィルム側に耐熱フィルムを積層する
。なお、本発明の複合シートは、融点をもたない耐熱フ
ィルム以外のプラスチックフィルムにも適用することが
でき、本発明の複合シートのボイドを有する延伸フィル
ム側に凹凸模様を形成しようとするプラスチックフィル
ムを積層し、揉み加工、エンボス加工等を施すことによ
って該プラスチックフィルム表面に凹凸模様を形成する
ために用いることができる。また、本発明の複合シート
は、そのまま、すなわちプラスチックフィルム等を積層
せずに、使用してもよい。この場合は、揉み加工、エン
ボス加工等を施すことによって、本発明の複合シートの
ボイドを有する延伸フィルム側表面に凹凸模様が形成さ
れる。The composite sheet of the present invention can be used to form an uneven pattern on the surface of the heat-resistant film by laminating it on a heat-resistant film that does not have a melting point, which normally makes it difficult to form an uneven pattern. Heat-resistant films such as polyimide films that do not have a melting point cannot be formed into uneven shapes even at high temperatures, but by laminating the composite sheet of the present invention, uneven patterns can be formed on the surface by rolling etc. even at room temperature. You will be able to do this. In this case, a heat-resistant film is laminated on the voided stretched film side of the composite sheet of the present invention. The composite sheet of the present invention can also be applied to plastic films other than heat-resistant films that do not have a melting point, and can be applied to plastic films in which an uneven pattern is to be formed on the stretched film side having voids of the composite sheet of the present invention. It can be used to form an uneven pattern on the surface of the plastic film by laminating them and subjecting them to rolling, embossing, etc. Further, the composite sheet of the present invention may be used as it is, ie, without laminating a plastic film or the like. In this case, by applying rolling, embossing, etc., an uneven pattern is formed on the surface of the composite sheet of the present invention on the side of the stretched film having voids.
本発明の複合シートに融点をもたない耐熱フィルム等の
プラスチックフィルムを積層する場合、積層する手段は
、特に限定するものではないが、通常、接着剤を使用す
る。接着剤としては、凹凸形成時又は実用時に剥離しな
いだけの接着力の得られるものであれば、接着剤の種類
は特に限定されないが、積層するプラスチックフィルム
及び延伸フィルムＢとの親和性のよい接着剤、例えば合
成樹脂系（ポリウレタン系、アクリル系）の接着剤が好
ましい。When a plastic film such as a heat-resistant film that does not have a melting point is laminated on the composite sheet of the present invention, the laminating means is not particularly limited, but an adhesive is usually used. The type of adhesive is not particularly limited as long as it has enough adhesive strength to not peel off when forming irregularities or during practical use, but adhesives that have good compatibility with the plastic film and stretched film B to be laminated are used. For example, synthetic resin-based (polyurethane-based, acrylic-based) adhesives are preferred.
凹凸模様は、いかなる方法で形成してもよいが、例えば
、皺付は加工、エンボス加工、クレープ加工、プリーツ
加工などで形成できる。皺付は加工は合成皮革、レザー
などに適用される機械揉、タンブラ揉及び手探、エンボ
ス加工は皮革、レザー紙などに通常適用されるエンボス
ロール、板等で、また、クレープ加工はクレープ紙とす
る加工、プリーツ加工は衣料等のプリーツ加工などが適
用できる。凹凸形成条件は、必ずしも熱付与で行なう必
要はないが、フィルムＢの素材の融点以下、好ましくは
その融点より少なくとも５０’Ｃ低い温度で行なうのが
よい。融点付近ではフィルムＢの破壊につながり好まし
くないからである。The uneven pattern may be formed by any method; for example, wrinkles can be formed by processing, embossing, crepe processing, pleating, etc. Wrinkling is processed by machine rolling, tumbler rolling, and hand-rolling applied to synthetic leather, leather, etc.; embossing is performed by embossing rolls, boards, etc. commonly applied to leather, leather paper, etc., and crepe processing is performed by crepe paper. Pleating processing for clothing, etc. can be applied to the processing and pleating processing. Although it is not necessary to apply heat to form the unevenness, it is preferable to perform the process at a temperature below the melting point of the material of film B, preferably at least 50'C lower than the melting point. This is because the melting point is undesirable because it may lead to destruction of the film B.
本発明の複合フィルムを、通常では凹凸模様形成が困難
なプラスチックフィルムに一体積層し、揉み加工等の凹
凸模様形成処理をすると、本発明の複合フィルムを構成
しているボイドを有する延伸フィルムのボイドの一部が
つぶれ、永久歪（変形）を生ずることにより、上記プラ
スチックフィルムの表面に容易に凹凸模様が形成される
。When the composite film of the present invention is laminated onto a plastic film in which it is normally difficult to form a concave-convex pattern, and subjected to a process such as rolling to form a concave-convex pattern, voids in the stretched film that have voids constituting the composite film of the present invention can be removed. When a portion of the plastic film is crushed and permanent deformation occurs, an uneven pattern is easily formed on the surface of the plastic film.
実施例１
ポリエステルに粒径１，７μｍの炭酸カルシウムを２０
重量％含めたものを溶融押出してフィルム状にし、縦方
向３．５倍、横方向７．０倍に逐次二軸延伸し、次いで
熱固定し、ボイド率３２％、厚さ８０μｍの延伸フィル
ムを得た。Example 1 20 pieces of calcium carbonate with a particle size of 1.7 μm were added to polyester.
% by weight was melt-extruded to form a film, sequentially biaxially stretched 3.5 times in the longitudinal direction and 7.0 times in the transverse direction, and then heat-set to form a stretched film with a void ratio of 32% and a thickness of 80 μm. Obtained.
得られたボイドを有する延伸フィルムに、可撓性基体シ
ートとしてレーヨン／テトロン織物（Ｔ／Ｒ７０５０、
厚さ０．９５ｍｍ）をポリウレタン系接着剤（大日精化
工業■製“セイカボンド”Ｅ２６０／Ｃ２６）で積層し
、本発明の複合シートを得た。A rayon/Tetoron fabric (T/R7050,
0.95 mm thick) with a polyurethane adhesive ("Seikabond" E260/C26, manufactured by Dainichiseika Chemical Industry Co., Ltd.) to obtain a composite sheet of the present invention.
この複合シートに、ヤマサ技研■製クランピング・マシ
ンを用いて、常温、０．５ｍ／分の条件で、皺付加工を
施したところ、延伸フィルム表面に明瞭な皺模様が形成
された。When this composite sheet was wrinkled using a Yamasa Giken ■ clamping machine at room temperature and 0.5 m/min, a clear wrinkle pattern was formed on the stretched film surface.
実施例２
実施例１で得られたボイドを有する延伸フィルムとレー
ヨン／テトロン織物の複合シートのボイドを有する延伸
フィルム側の面に、黄色透明な２５μｍのポリイミドフ
ィルム（デュポン（ｄｕＰｏｎｔ）社製“カプトン”１
００Ｈ）をポリウレタン系接着剤（大日精化工業■製“
セイ力ボンド″Ｅ２６０／Ｃ２６）で積層し、ポリイミ
ドフィルムとボイドを有する延伸フィルムとレーヨン／
テトロン織物の積層体を得た。Example 2 A yellow transparent 25 μm polyimide film (“Kapton” manufactured by DuPont) was coated on the side of the voided stretched film of the composite sheet of the stretched film with voids obtained in Example 1 and the rayon/Tetron fabric. ”1
00H) with a polyurethane adhesive (manufactured by Dainichiseika Chemical Co., Ltd.)
Polyimide film, stretched film with voids, and rayon/
A laminate of Tetoron fabric was obtained.
この積層体に、実施例１と同様の条件で、皺付加工を施
したところ、ポリイミドフィルム表面に明瞭な皺模様が
形成された。When this laminate was subjected to wrinkle processing under the same conditions as in Example 1, a clear wrinkle pattern was formed on the surface of the polyimide film.
比較例１
実施例１で使用したレーヨン／テトロン織物に、実施例
１と同一の条件で皺付加工を施したところ、はとんど皺
模様がつかなかった。Comparative Example 1 When the rayon/Tetron fabric used in Example 1 was wrinkled under the same conditions as Example 1, almost no wrinkle pattern was formed.
比較例２
実施例２で使用したポリイミドフィルムに、実施例１と
同一の条件で皺付加工を施したところ、はとんど皺模様
がつかなかった。Comparative Example 2 When the polyimide film used in Example 2 was wrinkled under the same conditions as in Example 1, almost no wrinkle pattern was formed.
比較例３
実施例２で使用したレーヨン／テトロン織物にポリイミ
ドフィルムを積層して得られた積層体に、実施例１と同
一の条件で皺付加工を施したところ、はとんど皺模様が
つかなかった。Comparative Example 3 When a laminate obtained by laminating a polyimide film on the rayon/Tetoron fabric used in Example 2 was subjected to wrinkle processing under the same conditions as Example 1, the wrinkle pattern was mostly I didn't get it.
実施例３及び４、比較例２及び３
ポリエステルに粒径１．７μｍの炭酸カルシウムを２０
重量％含めたものと、フィラーを含まないポリエステル
とを、二層口金で共押出してフィルム状にし、縦方向３
〜４倍、横方向６〜９倍に逐次二軸延伸し、次いで熱固
定し、さらにフィラーを含まないポリエステル層面を炭
酸ガスを含む雰囲気でコロナ放電処理し、他面を空気中
でコロナ放電処理して、ボイドを有する延伸フィルムを
得た。この際、押出機の吐出量と延伸条件（倍率、温度
）を変えて、ボイド率が２２％（比較例２）、３６％（
実施例３）、４５％（実施例４）及び６２％（比較例３
）の４種の延伸フィルムを得た。Examples 3 and 4, Comparative Examples 2 and 3 Calcium carbonate with a particle size of 1.7 μm was added to polyester for 20 minutes.
Polyester containing % by weight and polyester without filler were coextruded using a two-layer die to form a film, and
It is sequentially biaxially stretched ~4 times and 6 to 9 times in the transverse direction, then heat-set, and then the filler-free polyester layer side is subjected to corona discharge treatment in an atmosphere containing carbon dioxide gas, and the other side is subjected to corona discharge treatment in air. As a result, a stretched film having voids was obtained. At this time, by changing the extruder discharge rate and stretching conditions (magnification, temperature), the void ratio was 22% (comparative example 2) and 36% (comparative example 2).
Example 3), 45% (Example 4) and 62% (Comparative Example 3)
) were obtained.
各延伸フィルムの全厚さは、それぞれ７５．８５．９０
．９６μｍ１また、フィラーを含まないポリエステル層
厚さは、それぞれ７．５．５．４μｍであった。ボイド
率が６２％の延伸フィルム（比較例３）は、脆いフィル
ムであり、実用に耐えなかった。The total thickness of each stretched film is 75.85.90 respectively
．． 96 μm1 The thickness of the polyester layer without filler was 7.5 μm and 5.4 μm, respectively. The stretched film with a void ratio of 62% (Comparative Example 3) was a brittle film and could not be put to practical use.
これらのボイドを有する延伸フィルムのフィラーを含ま
ないポリエステル層面に、真空蒸着法でアルミニウム金
属を５０ｎｍ付着させた。Aluminum metal was deposited to a thickness of 50 nm on the filler-free polyester layer surface of the stretched film having these voids by vacuum evaporation.
この蒸着フィルムの蒸着面に、黄色透明な２５μｍのポ
リイミドフィルム（デュポン（ｄｕ Ｐ。A yellow transparent 25 μm polyimide film (DuPont) was applied to the vapor deposition surface of this vapor deposition film.
ｎｔ）社製“カプトン”１００Ｈ）を、非蒸着面にレー
ヨン／テトロン織物（Ｔ／Ｒ７０５０）を、それぞれポ
リウレタン系接着剤（大日精化工業■製“セイ力ボンド
”Ｅ ２６０／Ｃ２６）を用いて積層した。nt) "Kapton" 100H), a rayon/Tetron fabric (T/R7050) on the non-evaporated surface, and a polyurethane adhesive ("Seiriki Bond" E 260/C26, manufactured by Dainichiseika Kagyo ■). Laminated.
この積層体に、実施例１と同様の条件で、皺付加工を施
した。This laminate was wrinkled under the same conditions as in Example 1.
得られた積層体の凹凸の高さ（断面拡大鏡による谷−山
の高さ）は、それぞれ２００μｍ（比較例２）、７００
μｍ（実施例３）、８００μｍ（実施例４）、８００１
．ｔｍ（比較例３）であった。The heights of the unevenness of the obtained laminate (height of valleys and peaks as measured by a cross-sectional magnifying glass) were 200 μm (Comparative Example 2) and 700 μm, respectively.
μm (Example 3), 800 μm (Example 4), 8001
．． tm (Comparative Example 3).
比較例２の積層体は、凹凸の高さが小さく、ボイド率３
０％未満の延伸フィルムが凹凸形威しにくいことを示し
ている。実施例３及び実施例４の積層体は、明瞭な皺模
様を有し、且つ金属光沢をもっていた。なお、比較例３
の積層体は、凹凸形威は良いが、前記したように脆さに
問題点を有する。The laminate of Comparative Example 2 had a small height of unevenness and a void ratio of 3.
This shows that a stretched film of less than 0% is less susceptible to unevenness. The laminates of Examples 3 and 4 had clear wrinkle patterns and metallic luster. In addition, comparative example 3
Although the laminate has a good uneven shape, it has the problem of brittleness as described above.
実施例５
ポリエステルに粒径１．７μｍの炭酸カルシウムを２０
重量％含めたものと、ポリエステルに粒径１．７μｍの
炭酸カルシウムを１５重量％含めたものとを、二層口金
で共押出してフィルム状にし、縦方向３倍、横方向８倍
に逐次二軸延伸し、次いで熱固定し、さらに炭酸カルシ
ウムを１５重量％含むポリエステル層面を炭酸ガスを含
む雰囲気でコロナ放電処理し、他面を空気中でコロナ放
電処理して、ボイド率３４％、厚さ９０μｍのボイドを
有する延伸フィルムを得た。Example 5 20 pieces of calcium carbonate with a particle size of 1.7 μm were added to polyester.
% by weight and polyester containing 15% by weight of calcium carbonate with a particle size of 1.7 μm were coextruded using a two-layer die to form a film, and the film was sequentially doubled 3 times in the longitudinal direction and 8 times in the transverse direction. The polyester layer containing 15% by weight of calcium carbonate was axially stretched, then heat-set, and the surface of the polyester layer containing 15% by weight was subjected to corona discharge treatment in an atmosphere containing carbon dioxide gas, and the other side was subjected to corona discharge treatment in air, resulting in a void ratio of 34% and a thickness of A stretched film having voids of 90 μm was obtained.
このボイドを有する延伸フィルムの両面に、実施例３と
同様に、ポリイミドフィルムとレーヨン／テトロン織物
を積層した。As in Example 3, a polyimide film and a rayon/Tetron fabric were laminated on both sides of this stretched film having voids.
この積層体に、実施例１と同様の条件で、皺付加工を施
した。This laminate was wrinkled under the same conditions as in Example 1.
得られた複合シートの凹凸の高さは８５０μｍであった
。The height of the unevenness of the obtained composite sheet was 850 μm.
実施例６
実施例４で得られた積層体に、クロコダイルパターンを
もつ平板プレスでエンボス加工を施した。Example 6 The laminate obtained in Example 4 was embossed with a flat plate press having a crocodile pattern.
得られた積層体は、明瞭なエンボス模様を有するもので
あった。The obtained laminate had a clear embossed pattern.
本発明の複合シートは、凹凸模様形成能を有し、例えば
、ポリイミドフィルムのような凹凸模様を形成すること
が困難なプラスチックフィルムに積層一体化し、揉み加
工、エンボス加工などを施すことにより、上記プラスチ
ックフィルム表面に凹凸模様を形成することができる。The composite sheet of the present invention has the ability to form an uneven pattern. For example, the composite sheet of the present invention can be laminated and integrated with a plastic film, such as a polyimide film, in which it is difficult to form an uneven pattern, and subjected to rolling, embossing, etc. An uneven pattern can be formed on the surface of a plastic film.
第１図は本発明の複合シートの断面図であり、第２図は
本発明の複合シートにプラスチックフィルムを積層して
凹凸模様を形成した積層体例の断面図である。
１ニブラスチツクフイルム
２：ボイドを有する延伸フィルム
３：ボイド
４：つぶれたボイド
５：可撓性基体シート
６：着色、印刷又は／及び蒸着層
７：接着剤層
ｍｉｎ図FIG. 1 is a cross-sectional view of a composite sheet of the present invention, and FIG. 2 is a cross-sectional view of an example of a laminate in which a plastic film is laminated on the composite sheet of the present invention to form an uneven pattern. 1 Niblast film 2: Stretched film with voids 3: Voids 4: Collapsed voids 5: Flexible base sheet 6: Colored, printed or/and vapor deposited layer 7: Adhesive layer min diagram
Claims (2)
ー周辺にボイドを有する延伸フィルムＢに可撓性基体シ
ートＣが積層されていることを特徴とする凹凸模様形成
能を有する複合シート。(1) A composite sheet having the ability to form an uneven pattern, characterized in that a flexible base sheet C is laminated on a stretched film B made of polyester containing a filler and having voids around the filler.
あることを特徴とする特許請求の範囲第１項記載の複合
シート。(2) The composite sheet according to claim 1, wherein the void ratio of the film B is 30% or more and 60% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21673289A JPH02167745A (en) | 1989-08-22 | 1989-08-22 | Composite sheet having emboss pattern forming capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21673289A JPH02167745A (en) | 1989-08-22 | 1989-08-22 | Composite sheet having emboss pattern forming capacity |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62043821A Division JPS63239039A (en) | 1986-11-27 | 1987-02-26 | Heat-resistant sheet having irregular pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02167745A true JPH02167745A (en) | 1990-06-28 |
Family
ID=16693063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21673289A Pending JPH02167745A (en) | 1989-08-22 | 1989-08-22 | Composite sheet having emboss pattern forming capacity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02167745A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239039A (en) * | 1986-11-27 | 1988-10-05 | 東レ株式会社 | Heat-resistant sheet having irregular pattern |
-
1989
- 1989-08-22 JP JP21673289A patent/JPH02167745A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239039A (en) * | 1986-11-27 | 1988-10-05 | 東レ株式会社 | Heat-resistant sheet having irregular pattern |
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