JPS63166463A - Method for molding leather-like sheet - Google Patents
Method for molding leather-like sheetInfo
- Publication number
- JPS63166463A JPS63166463A JP31018086A JP31018086A JPS63166463A JP S63166463 A JPS63166463 A JP S63166463A JP 31018086 A JP31018086 A JP 31018086A JP 31018086 A JP31018086 A JP 31018086A JP S63166463 A JPS63166463 A JP S63166463A
- Authority
- JP
- Japan
- Prior art keywords
- leather
- sheet
- sheet support
- coating film
- powder
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000465 moulding Methods 0.000 title description 5
- 239000010985 leather Substances 0.000 claims abstract description 73
- 239000011248 coating agent Substances 0.000 claims abstract description 39
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 15
- 239000000057 synthetic resin Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 239000000839 emulsion Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 102000008186 Collagen Human genes 0.000 description 12
- 108010035532 Collagen Proteins 0.000 description 12
- 239000000835 fiber Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 229920001436 collagen Polymers 0.000 description 8
- 239000002649 leather substitute Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000010025 steaming Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 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
- 229920000180 alkyd Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001222 biopolymer Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 208000008454 Hyperhidrosis Diseases 0.000 description 1
- 241000497192 Phyllocoptruta oleivora Species 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 230000001886 ciliary effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 208000013460 sweaty Diseases 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は皮革特有の表面スキン層を有する皮革様シー
トの成形方法の改良に関し、特に表面スキン層を構成し
ている皮膜中の天然の皮革粉が偏在することなく存在し
、しかもシート表面が平滑な面となる皮革様シートの成
形方法の提供に関する。Detailed Description of the Invention (Industrial Application Field) This invention relates to an improvement in a method for forming a leather-like sheet having a surface skin layer unique to leather, and in particular to improving a method for forming a leather-like sheet having a surface skin layer unique to leather. To provide a method for forming a leather-like sheet in which powder is present without uneven distribution and the surface of the sheet is smooth.
（従来技術）
天然の皮革は古くより衣料あるいは身の回りの生活用品
として広い用途に向けて使用されてきており、そのいず
れにおいても天然皮革特有の吸湿膨潤機能、通気機能と
が効果的に活かされ、肌触りが良く、耐寒保温特性に優
れた素材として重要な位置を占めてきている。(Prior art) Natural leather has been used for a wide range of purposes, such as clothing and daily necessities, for a long time, and in all of these, the moisture absorption and swelling functions and ventilation functions unique to natural leather are effectively utilized. It has become an important material as it is soft to the touch and has excellent cold and heat retention properties.
か−る特性は天然皮革固有のコラーゲン繊維束によりも
たらされるものであり、このコラーゲン繊維束は同時に
皮革生地を強靭な生地材として特長づけているものであ
るが、一方において、このコラーゲン繊維は膨潤に伴っ
て、その強度の極端な脆弱化を生じ易く、又発黴、腐敗
に伴う変色ないしは機能劣化を生じ易い欠点を有してお
り必ずしも完全に満足し得る素材ではなかった。These characteristics are brought about by the collagen fiber bundles unique to natural leather, and these collagen fiber bundles also make leather fabric a strong material. As a result, it tends to become extremely weak in strength, and it also has the drawbacks of discoloration and functional deterioration due to mold growth and decay, so it has not always been a completely satisfactory material.
又、天然の皮革の場合、供給に自ずと限界があることか
ら高価なものとされ、日常生活の中で気軽に使用し得る
ものでない不都合を有していると共に供給される皮革が
対象動物の夫々の固体により形状が異なる欠点を有して
いた。In addition, in the case of natural leather, it is expensive because there is a limit to its supply, and it has disadvantages that make it difficult to use in daily life. It had the disadvantage that the shape differed depending on the solid state.
そこで近時、塩化ビニル等を織布に塗布した所謂ビニル
レザー等の擬革、織布ないしは編布をベースとして、塩
化ビニル、ポリアミド、ポリウレタン等の発泡体で作ら
れたスポンジレザー表面を変性ポリアミド、ポリウレタ
ン、ポリアクリル酸誘導体で処理した合成皮革が作り出
され、更に、れん根型中空繊維、微細繊維集束型繊維等
の特殊繊維の三次元繊維絡合体とエラストマー（ポリウ
レタン）を主体とするバインダーの多孔構造体からなる
人工皮革の提供がなされてきている。Therefore, in recent years, we have been developing pseudo-leather such as so-called vinyl leather, which is made by coating woven fabric with vinyl chloride, etc., and using modified polyamide to replace the surface of sponge leather made of foams such as vinyl chloride, polyamide, and polyurethane, using woven or knitted fabric as a base. Synthetic leather is produced by treating with polyurethane, polyacrylic acid derivatives, and three-dimensional fiber entanglement of special fibers such as root-shaped hollow fibers and fine fiber bundled fibers, and a binder mainly composed of elastomer (polyurethane). Artificial leathers made of porous structures have been provided.
しかしながら、これらの人造皮革、特に人１皮革あるい
は合成皮革はいずれも吸水性、通気性あるいは伸縮性を
非膨潤組織である合成樹脂素材の網状化、多孔状化によ
って約束しようとするものであり生体高分子をベースと
する天然皮革と同様の吸水性１通気性あるいは伸縮性を
有する素材とする点に無理があった。However, these artificial leathers, especially human leather and synthetic leather, all attempt to provide water absorption, breathability, or elasticity by making the synthetic resin material, which is a non-swelling tissue, reticulated or porous. It was difficult to create a material with water absorption, breathability, or elasticity similar to that of polymer-based natural leather.
か−る合成皮革あるいは人工皮革の構造は。What is the structure of synthetic leather or artificial leather?
その表面における撥水性が顕著であるにも拘らず充分な
通気性と、保温性とが約束され、しかも内部よりの水分
の過湿機能を有する特長をもっている。Despite its remarkable water repellency on the surface, it promises sufficient breathability and heat retention, and also has the feature of superhumidifying moisture from the inside.
しかしながら、これの合成皮革あるいは人工皮革は決定
的な構成及び機能面において天然の皮革に劣る傾向を有
している。However, these synthetic or artificial leathers tend to be inferior to natural leathers in terms of critical structure and functionality.
即ち、天然の皮革は通例生体高分子であるコラーゲン繊
維束により構成され、これらのコラーゲン繊維束の構成
する空隙を利用した過湿、通気機能からなっている。こ
の結果、コラーゲン繊維が湿度、温度により膨潤し、こ
の膨潤された範囲内で常に、これらの適湿２適気機能が
追随補正される特長を有しているものである。又、コラ
ーゲン繊維自体が直接水分の吸収をすることにより接触
時のベタつき感が無く、柔らかく、暖かい感触と共に夏
期には冷たい肌触り感をもたらす特長を有しており、こ
れら諸々の特性が擬革、合成皮革、人工皮革のいずれに
も存していない。That is, natural leather is usually composed of collagen fiber bundles, which are biopolymers, and has a humidification and ventilation function that utilizes the voids formed by these collagen fiber bundles. As a result, the collagen fibers swell due to humidity and temperature, and within this swollen range, these two appropriate humidity and air functions are always corrected accordingly. In addition, the collagen fibers themselves absorb water directly, so they do not feel sticky upon contact, and have a soft, warm feel, as well as a cool touch in the summer.These characteristics make fake leather, It does not exist in either synthetic or artificial leather.
（本発明の目的及び構成） 本発明では、か−る従前の人造皮革における。(Object and structure of the present invention) The present invention uses such conventional artificial leather.
欠点を解消した皮革様シートの成形方法の提供をなすも
のである。The object of the present invention is to provide a method for forming a leather-like sheet that eliminates the drawbacks.
即ち、本発明ではシート表面に皮膜を構成し、この皮膜
中に生体高分子であるところの天然皮革の微粉粒物を混
入させること−し、この微粉粒状の皮革粉により天然の
皮革におけると同様の吸湿、Ｗ調時性を成形シートにも
たらすべく、特に成形方法の改善をなした。That is, in the present invention, a film is formed on the surface of the sheet, and fine particles of natural leather, which is a biopolymer, are mixed into this film. In order to provide the molded sheet with moisture absorption and W timing properties, we particularly improved the molding method.
特に１本発明の成形方法で使用される皮革粉は、主とし
て５０〜２５０メツシュの粒径の微粉状のものであるこ
とを要し、このために皮革粉の含水率が４重量％以内と
されている。In particular, the leather powder used in the molding method of the present invention is mainly required to be in the form of a fine powder with a particle size of 50 to 250 mesh, and for this reason, the moisture content of the leather powder must be within 4% by weight. ing.
このような皮革粉ａを、溶液状ないしはエマルジョン状
の合成樹脂液４０〜８０重に％に対し２０〜６０重量％
で混合して塗布剤ｌを得た。Such leather powder a is added in an amount of 20 to 60% by weight to 40 to 80% by weight of a synthetic resin liquid in the form of a solution or emulsion.
The mixture was mixed to obtain coating agent 1.
そして、この塗布剤ｌを剥離紙等の第一のシート支持体
２上に０．０１〜０．１Ｏｍ朧厚で塗着する。Then, this coating agent 1 is applied onto the first sheet support 2 such as release paper to a thickness of 0.01 to 0.1 Om.
この第一のシート支持体２上に塗着された塗布膜３は加
熱乾燥等任意の方法の乾燥装置４で所定度合いにいたる
まで乾燥される。The coating film 3 coated on the first sheet support 2 is dried to a predetermined degree using a drying device 4 using an arbitrary method such as heating drying.
そして、この乾燥された塗布８１３を有する第一のシー
ト支持体２に対し、第二のシート支持体５が転圧接され
て、この第一のシート支持体２上の塗布膜３を第二のシ
ート支持体５に転着することにより皮革様表面スキン層
を有するシートの成形がなされた。Then, the second sheet support 5 is rolled and pressed against the first sheet support 2 having the dried coating 813, and the coating film 3 on the first sheet support 2 is transferred to the second sheet support 2. By transferring it to the sheet support 5, a sheet having a leather-like surface skin layer was formed.
（作用、効果）
本発明に係る皮革様シートの成形方法では叙上における
特長ある構成よりして次の作用、効果を生ずることが判
明した。(Functions and Effects) It has been found that the method for forming a leather-like sheet according to the present invention has the following effects and effects due to the above-mentioned characteristic structure.
（１）混入される皮革粉ａが微粉状であり、しかも粒径
が主として５０〜２５０メツシュ篩通過粒径のものであ
ることより、皮革粉ａ相互が絡み合って綿状となること
が無く。(1) Since the leather powder a to be mixed is in the form of a fine powder and has a particle size that mainly passes through a 50 to 250 mesh sieve, the leather powder a does not become entangled with each other and become flocculent.
合成樹脂液中に渦層なく混合された。It was mixed into the synthetic resin liquid without a vortex layer.
（２）このことより、第二のシート支持体５上に構成さ
れる塗布膜３は、均一の混在比率で樹脂生地す中に皮革
粉ａを有すること−された。(2) From this, it was determined that the coating film 3 formed on the second sheet support 5 had the leather powder a in the resin fabric at a uniform mixing ratio.
（３）又、成形される塗、布膜３の塗布厚が０．０１〜
０、ｌＯ鵬膳であることから、塗布膜３に取込まれた皮
革粉ａが塗布［３の上下面に亘って存在することが多く
、樹脂生地すの介在にも拘らず、この皮革粉ａが塗布膜
３の一ヒ下面間の透湿媒介物とされている。(3) Also, the coating thickness of the coating film 3 to be molded is 0.01~
0, 1O, the leather powder a incorporated into the coating film 3 is often present over the upper and lower surfaces of the coating film 3, and despite the presence of the resin fabric, this leather powder A is used as a moisture permeation medium between the lower surfaces of the coating film 3.
（０この結果、成形された皮革様シートＡ自体に、天然
皮革に近い特性がもたらされ
た。(As a result, the molded leather-like sheet A itself had characteristics close to those of natural leather.
（５）又、このように薄く、しかも均一の厚幅の塗布膜
３を形成する手段として、第一のシート支持体と、第二
のシート支持体とを別途用意し、これによって均一の厚
味からなる塗布膜３を容易に第二のシート支持体５上に
もたらすことが可能とされた。(5) In addition, as a means for forming the coating film 3 with such a thin and uniform thickness and width, a first sheet support and a second sheet support are separately prepared, and thereby a uniform thickness can be obtained. It was made possible to easily bring the coating film 3 consisting of the taste onto the second sheet support 5.
（６）又、このようにして形成された塗布膜３は、第一
のシート支持体２に接着した側が表面とされることから
、第二のシート支持体２上のｉ布Ｉ１５［３の表面には
緻密且つ平滑な面とされる特長を有している。(6) Also, since the coating film 3 formed in this way has the side adhered to the first sheet support 2 as the surface, the i-cloth I15 [3 of The surface is characterized by a dense and smooth surface.
（実施例）
以下本発明に係る皮革様シートの成形方法の実施例につ
いて説明する。(Example) Examples of the method for forming a leather-like sheet according to the present invention will be described below.
先ず使用される皮革は、主としてクロム社しされた牛皮
、豚皮、羊皮等であり、一部タンニン靭し革が用いられ
る。First, the leather used is mainly chromed cowhide, pigskin, sheepskin, etc., and some leather is toughened with tannins.
従前手法では牛革のコラーゲン繊維が強靭であったこと
より、その破砕、粉粒化の工程において１粒径の不揃い
の問題と、繊毛発生の問題とを含み、又豚皮においては
皮革中の油脂分による粉砕不良の問題を有していたが、
以下の実施例では、牛皮であろうと、豚皮であろうと、
その種別を問わず一様に処理できる利点を有している。In the conventional method, since the collagen fibers of cowhide are strong, the process of crushing and pulverizing them involves the problem of uneven particle size and the problem of cilia generation. However, there was a problem of poor grinding due to
In the following examples, whether it is cowhide or pigskin,
It has the advantage that it can be processed uniformly regardless of its type.
又、靭し皮の利用は、皮革の処理工程並びに成形品に取
込まれた状態での皮革粉の発黴及び腐敗の防止等をなす
と共に以下の処理に際して耐熱性を生ずる特長を有して
おり、か−る趣旨より基本的にはクロム揉し処理のされ
た床革ないしはシェービング屑が利用される。In addition, the use of toughened leather prevents the molding and rotting of leather powder during the leather processing process and when it is incorporated into molded products, and has the feature of providing heat resistance during the following treatments. For this purpose, chrome-treated floor leather or shaving waste is basically used.
尚、クロム揉し以前の裏すき材としての床革あるいは床
革屑を利用し、これにクロム処理を施す場合もある。In some cases, the floor leather or floor leather scraps used as the back plowing material before chrome rolling are used and the chrome treatment is applied to this.
か−る革材を切断機にかけて（シェービング屑の場合は
そのま−の状態で）以下の処理に適するように細片化し
た後、この細片化した細片皮革を蒸し装置に投入し、所
定時間蒸気加熱を施す。After cutting the leather material into pieces suitable for the following processing using a cutting machine (in the case of shaving waste, leave it as it is), the pieces of leather are fed into a steaming device, Steam heating is applied for a predetermined period of time.
ところで、蒸し装置Ｃは、概ね円筒状をなすものとし、
内ｌ！１１と外壁１２との二重壁とし、この二重壁間の
隙間１３を一方の水蒸気Ｓの流路とし、内壁１１の内部
を処理室１４としている。そして、この処理室１４内に
は攪拌５［１５，１５を回転軸ＩＢに設け、処理室１４
内に投入された皮革細片ａ。By the way, the steaming device C is assumed to have a generally cylindrical shape,
Inside! 11 and an outer wall 12, a gap 13 between the double walls serves as a flow path for water vapor S, and the inside of the inner wall 11 serves as a processing chamber 14. In this processing chamber 14, a stirring 5 [15, 15 is provided on the rotating shaft IB.
Leather strips thrown in a.
の攪拌をなすようにしている。又、処理室１４の残余空
隙中には別の水蒸気Ｓ°が導入され、これらの水蒸気Ｓ
゛の液化された水液がドレーン１７より抜き出せるよう
に構成されている。I try to stir it up. Further, another water vapor S° is introduced into the remaining void of the processing chamber 14, and these water vapors S
The structure is such that the liquefied aqueous liquid can be extracted from the drain 17.
このような蒸し装置Ｃに対し、通例５０％〜６７％の水
分を含んでいる皮革細片ａ°を投入し、処理室１４と隙
間１３とに１３０℃、２ Ｋｇ／ ｄの水蒸気ｓ、ｓ’
を供給して３０〜６０分間蒸した。Leather strips a° containing usually 50% to 67% moisture are introduced into such a steaming device C, and 2 Kg/d of water vapor s, s is placed in the processing chamber 14 and the gap 13 at 130°C. '
and steamed for 30 to 60 minutes.
先ず水蒸気Ｓ°の供給により皮革細片ａ°は膨潤され、
飽和状態まで水を吸収する。そして、この皮革細片６°
の水の含有量は、皮革細片ａ°の経時的な温度変化に伴
って変化し、その温域内における飽和状態を維持するこ
とが判明した。First, the leather strip a° is swollen by supplying water vapor S°,
Absorbs water to saturation. And this leather strip 6°
It was found that the water content of the leather strip a° changes with the temperature change over time and remains saturated within that temperature range.
か−る状態で隙間１３に水蒸気Ｓを送った場合、内！！
１１が加熱され、これに接触している皮革細片ａ°を高
温域に移行させ、その含有水分値を増すと共に、遂には
気化点゛に達し、気化、蒸散を生ずるに及び急激に温度
を減する。又、前記の撹拌１１１５による撹拌により処
理室１４の内壁より空中に放ぜられた皮革細片ａ°も急
激に熱源を喪失し、共に飽和状態を超えて含有水分の放
出（凝縮状態で）をなすことが認められた。If water vapor S is sent to the gap 13 in this state, the inside! !
11 is heated, the leather strip a° in contact with it moves to a high temperature range, increases its moisture content, and finally reaches the vaporization point, causing vaporization and transpiration, and the temperature rapidly decreases. reduce Further, the leather strips a° released into the air from the inner wall of the processing chamber 14 by the stirring by the stirring 1115 also rapidly lose their heat source, and both exceed the saturated state and release the contained moisture (in a condensed state). was allowed to do so.
従って、処理室１４中に投入された皮革細片ａ。Therefore, the leather strips a thrown into the processing chamber 14.
は、加熱に伴う水蒸気の吸収と、温度低下に伴う凝縮、
水分放出の作用を反覆して受けること−なり、蛋白コラ
ーゲンの物性に大きな変化をもたらすこと−された。is absorption of water vapor due to heating, condensation due to temperature drop,
The effect of water release was repeatedly applied to the protein collagen, resulting in a major change in the physical properties of the protein collagen.
尚、上記の装置Ｃにおける皮革細片ａ°の温度測定をし
たところ概ね添付グラフの温域内での変動であることが
判明した。In addition, when the temperature of the leather strip a° was measured in the above apparatus C, it was found that the temperature fluctuation was generally within the temperature range shown in the attached graph.
これらの実際の操作においてこの上記加熱は飽和蒸気中
に投入された細片皮革を攪拌しながら外部より更に加熱
することによる蒸し装置内の温度を前記の９０℃〜８０
℃の範囲で変動するようにしたのが理想的であり、投入
される皮革の性状、形状及び量によって、この理想的数
値が決定される。In these actual operations, the above-mentioned heating is carried out by further heating the leather strips put into the saturated steam from the outside while stirring them, thereby increasing the temperature inside the steaming apparatus to the above-mentioned 90°C to 80°C.
Ideally, it should be allowed to vary within a range of 0.degree. C., and this ideal value is determined depending on the properties, shape, and amount of the input leather.
以上の装置では、蒸し装置に投入された細片皮革が充分
な膨潤状態で経時的な熱変化を受け、コラーゲン蛋白の
蛋白組成の変化を生ずると共にコラーゲン繊維中に含ま
れている油脂分及び水溶性の高い膠部分が取除かれ、結
果的に、より純粋はコラーゲン蛋白とされ、しかも長期
間に亘り完全に膨潤されている状態とされた。In the above device, the strips of leather put into the steamer undergo thermal changes over time in a sufficiently swollen state, causing a change in the protein composition of collagen protein, as well as the oil and fat content contained in the collagen fibers. The highly sticky glue portion was removed, resulting in a purer collagen protein that remained completely swollen for a long period of time.
か−る膨潤、加熱された細片皮革８°を乾燥し、理想的
には２．３％〜４％（重量比）の含水率にいたるまで急
速に乾燥して粉砕機に投入した。この粉砕機は、細片皮
革の性状、形状等によりボールミル、コロイドミル等適
宜の装置によること賢し、通例粉砕される粒径に合せて
順次微粉状に適するミルを段階的に使用することにより
、効率良く、しかも均一の粒径の皮革粉を得ることがで
きた。The swollen and heated 8° strips of leather were dried and rapidly dried to ideally a moisture content of 2.3% to 4% (by weight) and then fed into a grinder. This pulverizer uses appropriate equipment such as a ball mill or colloid mill depending on the properties and shape of the leather strips, and uses mills suitable for fine powder in stages according to the particle size to be pulverized. It was possible to efficiently obtain leather powder with uniform particle size.
特に、叙上の前処理工程を受けた細片皮革ｄ。In particular, strip leather d which has undergone the pre-treatment steps mentioned above.
は、破壊に対し脆く、粘弾性が無く、油脂分が取除かれ
ていることより極めて短時間で、適正粒径まで粉砕が可
能とされ、しかも粉砕皮革粉の粒径が均一で、繊毛部分
を有していない特長を有している。Because it is brittle to break, has no viscoelasticity, and removes oil and fat, it can be ground to an appropriate particle size in an extremely short time.Furthermore, the particle size of the ground leather powder is uniform, and the ciliary parts It has features that it does not have.
かくして粉砕された皮革粉ａを３０メツシュの篩を通す
ことにより、
１５０メツシュ篩通過率 ５４．７％
１００〜１５０メツシュ ／／ １８ 、４％６
０〜１００ ノー２シユ ｔｔ ｌ ５ 、５％
６０メツシュ ／ｌ 、 １１．４％の理想な粒
度分布よりなる皮革粉ａを得ることができた。By passing the thus crushed leather powder a through a 30-mesh sieve, the passing rate through the 150-mesh sieve was 54.7% 100-150 mesh // 18, 4%6
0~100 No 2 Shu ttl 5, 5%
Leather powder a having an ideal particle size distribution of 60 mesh/l and 11.4% could be obtained.
次いで、合成樹脂液は、溶液タイプあるいはエマルジョ
ンタイプないしは重縮合タイプ等種々の液状物が利用さ
れるものとし本発明では液状のウレタン樹脂を皮革粉ａ
４０４０重量対し６０重量％を混合したところ、適度の
粘性を有する塗布剤ｌを得ることができた。Next, as the synthetic resin liquid, various liquids such as a solution type, an emulsion type, or a polycondensation type are used.In the present invention, the liquid urethane resin is mixed with leather powder a.
When 60% by weight of 4040% by weight was mixed, a coating agent 1 having appropriate viscosity could be obtained.
尚、縮合系合成樹脂液としてアルキド樹脂。In addition, alkyd resin is used as the condensed synthetic resin liquid.
アミノアルキド樹脂、尿素樹脂、不飽和ポリエステル樹
脂、エポキシ樹脂、ウレタン樹脂等が、重合系合成樹脂
液としてビニル系樹脂、塩化ビニゾル、合成ゴム、加Ｅ
［ゴム系、アクリル系合成樹脂、合成ラテックス等が用
いられている。Amino alkyd resins, urea resins, unsaturated polyester resins, epoxy resins, urethane resins, etc. are used as polymeric synthetic resin liquids such as vinyl resins, vinyl chloride, synthetic rubber, and additives.
[Rubber-based, acrylic-based synthetic resins, synthetic latex, etc. are used.
又、目的に合せた合成樹脂を有機溶媒に溶解し、これに
前記の皮革粉ａを重量比で４０％相当混合したところ、
比較的短時間で塗布膜を構成することが判明した。In addition, when a synthetic resin tailored to the purpose was dissolved in an organic solvent and 40% by weight of the leather powder a was mixed therein,
It has been found that a coating film can be formed in a relatively short time.
更に、ポリ酢酸ビニルエマルジョン、アクリルエマルジ
ーン、ゴムラテックス等のエマルジョン４０重量％に対
し、前記の皮革粉ａを６０重量％混入したところ、皮革
粉ａの混合が極めて短時間に、しかも均一に、前記液中
に分散することが判明した。Furthermore, when 60% by weight of the leather powder a was mixed into 40% by weight of an emulsion such as polyvinyl acetate emulsion, acrylic emulgene, rubber latex, etc., the leather powder a was mixed extremely quickly and uniformly. It was found that it was dispersed in the liquid.
叙上における合成樹脂液と皮革粉ａとを混合する。The synthetic resin liquid and leather powder a described above are mixed.
この混合の割合は１重量比で 皮革粉ａ ２０〜６０％ 合成樹脂液 ４０〜８０％ の範囲内で行なわれる。The proportion of this mixture is 1% by weight. Leather powder a 20-60% Synthetic resin liquid 40-80% It is carried out within the range of
この塗布剤ｌを装置Ｂの第一のシート支持体２上に乗せ
ること覧した。This coating material 1 was placed on the first sheet support 2 of device B.
この装置Ｂは、バックアップロール２１とキャリアロー
ル２２との間に剥離紙等の第一のシート支持体２を張設
してあり、このシート支持体２は供給ロール２３から捲
取りロール２４に向けて円滑に供給される構成を有し、
バックアップロール２１の上方にドクターナイフ２５を
備えている。In this device B, a first sheet support 2 such as release paper is stretched between a backup roll 21 and a carrier roll 22, and this sheet support 2 is directed from a supply roll 23 to a take-up roll 24. It has a structure that allows smooth supply of
A doctor knife 25 is provided above the backup roll 21.
そして、第一のシート支持体２上に乗せられた塗布剤ｌ
は、このドクターナイフ２５により０．０１〜０．１０
ｍｍ、理想的にはＱ、Ｑ５ｍｓ＋より薄い状態で、この
第一のシート支持体２上に添着される。Then, the coating agent l placed on the first sheet support 2
is 0.01 to 0.10 with this doctor knife 25.
It is attached onto the first sheet support 2 in a state where it is thinner than mm, ideally Q, Q5ms+.
又、装置Ｂはキャリアロール２２に圧転接する転圧ロー
ル２６を有しており、供給ロール２７より送り出される
布生地等の第二のシート支持体５を、このキャリアロー
ル２２と転圧ロール２６との間に供給している。Further, the device B has a rolling pressure roll 26 that is in rolling contact with the carrier roll 22, and the second sheet support 5 such as cloth fed from the supply roll 27 is transferred between the carrier roll 22 and the rolling pressure roll 26. It is supplied between.
そして、装置Ｂの前記バックアップロール２１とキャリ
アロール２２との間には乾燥装置４が設けられている。A drying device 4 is provided between the backup roll 21 and the carrier roll 22 of the device B.
そこで、前記の第一のシート支持体２上に添着された塗
布膜３はシート支持体２がキャリアロール２２に到る間
に所定の乾燥条件となるまで乾燥される。そして供給ロ
ール２７から供給された第二のシート支持体５と、この
第一のシート支持体２との間にサンドイッチ状にキャリ
アロール２２と転圧ロール２Ｂとにより転圧接されるこ
とにより第一あシート支持体２上の塗布膜３は第二のシ
ート支持体５に反転々着される。Therefore, the coating film 3 attached to the first sheet support 2 is dried until a predetermined drying condition is reached while the sheet support 2 reaches the carrier roll 22. Then, the second sheet support 5 supplied from the supply roll 27 and the first sheet support 2 are rolled and welded in a sandwich-like manner by the carrier roll 22 and the rolling pressure roll 2B. The coating film 3 on the sheet support 2 is invertedly applied to the second sheet support 5.
この塗布ｆｉ３の反転々着は、塗布膜３を有する第一の
シート支持体２の面が第二のシート支持体５の面より接
着抵抗が少なく、塗布１９３が剥離し易い条件下にある
ことによってなされる。This reversal of the coating fi3 is caused by the fact that the surface of the first sheet support 2 having the coating film 3 has less adhesive resistance than the surface of the second sheet support 5 and is under conditions where the coating 193 is easily peeled off. done by.
又、この塗布Ｈ３の反転々着は、第一のシート支持体２
の面に接している側の接着力が、第二のシート支持体５
の面する側の接着力よりも劣るような乾燥条件下にある
ことによってなされる。Moreover, this application H3 is applied repeatedly to the first sheet support 2.
The adhesive force on the side that is in contact with the surface of the second sheet support 5
This is done under dry conditions such that the adhesive strength is inferior to that of the facing side.
尚、第一のシート支持体２は通例剥離面を有する剥離紙
が使用される他、叙上要件を満足する適当なシート材が
使用される。又、第二のシート支持体５は、織編の布地
、不織布、紙。As the first sheet support 2, a release paper having a release surface is usually used, and an appropriate sheet material satisfying the above-mentioned requirements is also used. The second sheet support 5 is made of woven or knitted fabric, nonwoven fabric, or paper.
人造皮革シート等と共に前床等の天然皮革材そのものが
用いられることもある。In addition to artificial leather sheets, natural leather itself may be used for the front floor and the like.
叙上成形方法において、
皮 革 粉 ３０重量％
合成樹脂液 ７０重量％
で成形したところ、艶があり、柔軟で、汗ばみ感のない
シートを得ることができた。In the above-mentioned molding method, when the sheet was molded using 30% by weight of leather powder and 70% by weight of synthetic resin liquid, a glossy, flexible sheet with no sweaty feeling could be obtained.
又、皮革粉５５重量％
合成樹脂液４５重量％
で成形したところ、艶が無くなり稍々柔軟さを欠く傾向
を有する反面、より天然皮革のバックスキン様の外観と
、肌触りとを有するシートを得ることができた。Furthermore, when molded with 55% by weight of leather powder and 45% by weight of synthetic resin liquid, the sheet tends to lose its luster and lack flexibility, but on the other hand, a sheet having an appearance and feel more like that of natural leather buckskin is obtained. I was able to do that.
又、叙上での成ｉに際して５〜２０重に％のゼラチンを
混入したところ、この肌触り感を残したま一艶があり、
柔軟なシートを得ることができた。In addition, when we mixed 5 to 20% gelatin during the preparation, it retained this texture and had a glossy texture.
I was able to get a flexible sheet.
このようにして成形された皮革様シートＡに対し、塗布
膜３表面に対するサンデング処理。For the leather-like sheet A thus formed, the surface of the coating film 3 is subjected to a sanding treatment.
型づけ、シボヅケ処理及び染色処理等通例の天然皮革に
おけると同様の化粧処理と、適宜の湯煎処理が施された
。Cosmetic treatments similar to those commonly used for natural leather, such as shaping, graining, and dyeing, and appropriate hot water bathing were performed.
叙上の方法においては均一の厚幅からなる塗布膜３を有
するシートＡの成形が円滑、容易に量産できる特長を有
しており、しかも成形された塗布＠３の樹脂す中に皮革
粉ａが均一に分布されている特長を有している。The method described above has the advantage that the sheet A having the coating film 3 having a uniform thickness and width can be smoothly and easily mass-produced. It has the feature that it is evenly distributed.
又、第二のシート支持体５上の塗布ｉＱ３の表面は、第
一のシート支持体５に接していた面であることより平滑
且つ緻密な面とされ、天然皮革における銀面層的な要様
を呈する特長を有している。In addition, the surface of the coating iQ3 on the second sheet support 5 is the surface that was in contact with the first sheet support 5, so it is a smoother and denser surface, which is similar to the grain layer of natural leather. It has various features.
更に、塗布１ｌｌ１３が薄く、しかも混入される皮草粉
ａ−ａ相互の絡みつきが無く、均一に樹脂すに中に混入
されていることより成形されたシー）Ａの面にもたらさ
れる天然皮革様の特性にムラが無い特長を有している。Furthermore, the coated powder 11113 is thin, and there is no mutual entanglement of the mixed leather powder a-a, and it is evenly mixed into the resin layer, resulting in a natural leather-like appearance brought to the surface of molded sheet A). It has the feature that there is no unevenness in characteristics.
尚、第一のシート支持体２にシボ状の凹凸模様等が付さ
れている場合には、このシート支持体２の塗布１１１３
が第二のシート支持体５に転着された際に、そのま賢シ
ボ様のシート表面を作ることが可能とされた。Note that if the first sheet support 2 has a textured pattern or the like, the coating 1113 of this sheet support 2
When the sheet is transferred to the second sheet support 5, it is possible to directly create a sheet surface with a grain pattern.
本発明に係る皮革様シートの成形方法は、叙Ｅの特長あ
る構成よりして、簡単に、しかも表面部のみが天然皮革
に近い皮膜構造を有しているシートの提供を可能とした
。The method for forming a leather-like sheet according to the present invention makes it possible to easily provide a sheet whose surface portion only has a film structure similar to that of natural leather, due to the characteristic structure of the leather-like sheet.
第１図は本発明に係る装置Ａの概略側面図、第２図は第
１図イ部分の拡大断面図、第３図は同口部分の拡大断面
図、第４図は装置Ｃの断面図、第５図は装置１ｃの皮革
細片部分の温度変化を示すグラフである。
尚、図中１・・・塗布剤、２・・・第一のシート支持体
、３・・・塗布膜、４・・・乾燥装置、５・・・第二の
シート支持体、１１・・・内壁、１２−外壁、 ＋３・
・・隙間、１４・・・処理室、１５・・・撹拌翼、１Ｂ
・・・回転軸、１７・・・ドレーン、２１・・・バック
アップロール、２２・・・キャリアロール、２３・・・
供給ロール、２４・・・捲取りロール、２５・・・ドク
ターナイフ、２Ｂ・・・転圧ロール、２７・・・ロール
を示している。
第 ４ 図
第 ５ 図
手続嗜む正置（自発）
昭和６２年３月Ｗ日FIG. 1 is a schematic side view of device A according to the present invention, FIG. 2 is an enlarged sectional view of part A in FIG. 1, FIG. 3 is an enlarged sectional view of the same opening, and FIG. , FIG. 5 is a graph showing the temperature change of the leather strip portion of the device 1c. In the figure, 1... coating agent, 2... first sheet support, 3... coating film, 4... drying device, 5... second sheet support, 11...・Inner wall, 12-outer wall, +3・
... Gap, 14... Processing chamber, 15... Stirring blade, 1B
... Rotating shaft, 17... Drain, 21... Backup roll, 22... Carrier roll, 23...
Supply roll, 24... winding roll, 25... doctor knife, 2B... rolling pressure roll, 27... roll are shown. Figure 4 Figure 5 Procedural formalization (voluntary) March W, 1986
Claims (1)
〜２５０メッシュの範囲内にある皮革粉を重量比で２０
〜６０％、合成樹脂液を４０〜８０％で混合してなる塗
布剤を第一のシート支持体上に０．０１〜０．１０ｍｍ
厚で塗着する工程と、このシート支持体上に塗着された
塗布膜の乾燥工程と、この第一のシート支持体上にある
塗布膜を第二のシート支持体に圧転着する工程とよりな
ることを特徴とする皮革様シートの成形方法。The moisture content is within 4% by weight, and the particle size is mainly 50%.
Leather powder within the range of ~250 mesh by weight ratio of 20
~60% and a synthetic resin liquid of 40 to 80% is applied onto the first sheet support in a thickness of 0.01 to 0.10 mm.
A process of applying a thick coating, a process of drying the coating film applied on this sheet support, and a process of pressure-transferring the coating film on this first sheet support to a second sheet support. A method for forming a leather-like sheet characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31018086A JPS63166463A (en) | 1986-12-29 | 1986-12-29 | Method for molding leather-like sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31018086A JPS63166463A (en) | 1986-12-29 | 1986-12-29 | Method for molding leather-like sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63166463A true JPS63166463A (en) | 1988-07-09 |
Family
ID=18002132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31018086A Pending JPS63166463A (en) | 1986-12-29 | 1986-12-29 | Method for molding leather-like sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63166463A (en) |
-
1986
- 1986-12-29 JP JP31018086A patent/JPS63166463A/en active Pending
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