JPH03234879A - Vinyl chloride-based resin sheet capable of color change - Google Patents

Vinyl chloride-based resin sheet capable of color change

Info

Publication number
JPH03234879A
JPH03234879A JP2398190A JP2398190A JPH03234879A JP H03234879 A JPH03234879 A JP H03234879A JP 2398190 A JP2398190 A JP 2398190A JP 2398190 A JP2398190 A JP 2398190A JP H03234879 A JPH03234879 A JP H03234879A
Authority
JP
Japan
Prior art keywords
vinyl chloride
chloride resin
resin
parts
colored
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.)
Granted
Application number
JP2398190A
Other languages
Japanese (ja)
Other versions
JP2798463B2 (en
Inventor
Koichi Muneda
宗田 廣一
Hidehiko Enosawa
榎沢 秀彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Achilles Corp
Original Assignee
Achilles Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Achilles Corp filed Critical Achilles Corp
Priority to JP2398190A priority Critical patent/JP2798463B2/en
Publication of JPH03234879A publication Critical patent/JPH03234879A/en
Application granted granted Critical
Publication of JP2798463B2 publication Critical patent/JP2798463B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain the subject resin sheet having an appearance remarkably similar to a natural leather by forming a resin layer composed of vinyl chloride resin and a specified amount of a synthetic resin capable of forming a film having whitening properties due to stretching on a synthetic resin layer of a base material. CONSTITUTION:To 100 pts.wt. vinyl chloride-based resin, 30-300 pts.wt. synthetic resin (e.g. polyolefinic resin such as polyethylene) capable of forming a film having whitening properties by stretching is added to obtain a colored vinyl chloride-based resin plastisol composition and the resultant colored plastisol composition is applied, e.g. to a release paper having a leather-like unevenness pattern. A colored vinyl chloride-based resin layer is formed by gelation and the surface layer is subsequently formed by using a transparent or semitransparent synthetic resin, thus obtaining the objective vinyl chloride-based resin sheet capable of changing color thereof and having an appearance well similar to a natural leather which is whitened by bending, flexing, etc.

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は、折り曲げたり、揉んだり、型押しくエンボス
)加工を施したときに、折り曲げられた部分が変色し、
天然皮革に酷似した外観を呈する塩化ビニル系樹脂シー
トに関する。 〔従来技術〕 従来より塩化ビニル系樹脂レザーとしては、基材表面に
発泡性着色塩化ビニル系樹脂層を形成し、該発泡性塩化
ビニル系樹脂層上に同色に着色された非発泡性塩化ビニ
ル系樹脂の表面層を形成し、これを加熱発泡したものが
知られているが、この従来の塩化ビニル系樹脂レザーは
、これを裁断、縫製して鞄、袋物を作成した場合、天然
皮革を裁断、縫製した鞄や袋物と異なり、外観的には天
然皮革製のものと明らかに異なり、特に折り曲げたり、
揉みゃ、エンボス加工を施したときに、折り曲げられた
部分とそうでない部分とでの色相の差がなく、単調なも
のしか得られないものであった。 天然皮革の外観に近づけるために、塩化ビニル系樹脂レ
ザーの表面にシャドウ掛けをしたり、基材上に着色塩化
ビニル系樹脂発泡層を設け、該着色塩化ビニル系樹脂発
泡層上にこれとは異色の非発泡塩化ビニル系樹脂層を形
成し、エンボスしたときに凹部に塩化ビニル系樹脂発泡
層の色相が現れ、シャドウ掛けしたのと同様の外観を有
する塩化ビニル系樹脂レザー等が開発された。 〔発明が解決しようとする問題点] しかしながら、シャドウ掛けをした塩化ビニル系樹脂レ
ザー、基材上に着色塩化ビニル系樹脂発泡層を設け、該
着色塩化ビニル系樹脂発泡層上にこれとは異色の非発泡
塩化ビニル系樹脂層を形成し、エンボスしたときに凹部
に塩化ビニル系樹脂発泡層の色相が現れ、シャドウ掛け
したのと同様の外観を有する塩化ビニル系樹脂レザーは
、色相コントラストが常に一定であり、外観的にはやや
天然皮革に近づくものの、折り曲げたり、揉み加工を施
したときに、折り曲げられた部分とそ・うでない部分と
で色相コントラストの差ができず、外観的に劣るもので
あった。 本発明者等は上記従来技術の欠点を解消するために鋭意
研究した結果、延伸したときに白化するフィルムを形成
する合成樹脂フィルムに着目し、これを塩化ビニル系樹
脂レヂーに応用することにより、折り曲げたときには、
折り曲げられた部分が白味を帯びた色相に変化し、シャ
ドウ掛けしたような外観を呈すること見出し、本発明を
完成したものである。 〔課題を解決するだめの手段] すなわぢ本発明は、 (1)基材に、延伸したときに白化するフィルムを形成
する合成樹脂を塩化ビニル系樹脂100重量部当たり3
0〜300重量部含有する塩化ビニル系樹脂プラスチゾ
ル組成物からなる着色塩化ビニル系樹脂層を形成してな
る塩化ビニル系樹脂シート。 (2)着色塩化ビニル系樹脂層上に透明または半透明の
合成樹脂よりなる表面層を形成してなる請求項1記載の
可変色塩化ビニル系樹脂シート(3)基材に、少なくと
も1層の着色合成樹脂層を形成し、該着色合成樹脂層上
に、延伸したときに白化するフィルムを形成する合成樹
脂を塩化ビニル系樹脂100重量部当たり30〜300
重量部含有する塩化ビニル系樹脂プラスデシル組成物か
らなる透明塩化ビニル系樹脂層を形成してなる塩化ビニ
ル系樹脂シート。 (4)透明塩化ビニル系樹脂層上に透明または半透明の
合成樹脂よりなる表面層を形成してなる請求項1記載の
可変色塩化ビニル系樹脂シートを要旨とするものである
。 本発明で使用する塩化ビニル系樹脂としては、ポリ塩化
ビニルや、または塩化ビニルと他のビニルモノマー、例
えば酢酸ビニル、エチレン、プロピレン、マレイン酸エ
ステル、メタクリル酸メチル、メタクリル酸エステル、
アクリル酸エステル、高級ビニルエーテルなどとの共重
合体、もしくはこれらのブレンド物が挙げられる。 この塩化ビニル系樹脂には可塑剤を添加するが、使用で
きる可塑剤としては、例えばフタル酸ジ2−エチルヘキ
シルエステル(DOP)、フタル酸ジイソデシルエステ
ル(DINP)、フタル酸ブチルベンジルエステル(B
BP)、フタル酸ジイソデシルエステル(DIDP)、
フタル酸ジウンデシルエステル(DUP)などに代表さ
れる一般のフタル酸エステル系可塑剤、アジピン酸ジオ
クチルエステル(DOA)、セバシン酸ジオクチルエス
テル(DO3)、アゼライン酸ジオクチルエステル(D
OZ)に代表される一般の脂肪酸エステル系可塑剤、ト
リメリット酸トリオクチルエステル(TOTM)に代表
されるトリメリット酸エステル系可塑剤、トリクレジル
フォスフェート(TCP)、トリキシリルフォスフェー
ト(TXP)などに代表されるトリアリールフォスフェ
ート系可塑剤のほか、エポキシ化大豆油などに代表され
るエポキシ系可塑剤、ポリプロピレンアジペート等に代
表されるポリエステル系可塑剤などの高分子系可塑剤、
塩素化パラフィンなどの一般の可塑剤が使用できるが、
これらの可塑剤は単独で使用しても良いし、2種以上を
併用して使用してもよい。 可塑剤の添加量は、塩化ビ
ニル系樹脂100重量部に対し、30〜100重量部が
好ましい。 延伸したときに白化するフィルムを形成する透明合成樹
脂としては、ポリエチレン等のポリオレフィン樹脂、ア
クリルースチレン共重合樹脂、メタクリル酸樹脂、AB
S系樹脂、硝化セルロース系樹脂等が挙げられる。AB
S系樹脂としては、一般にアクリロニトリル−ブタジェ
ン−スチレン共重合体が使用されるが、メチルメタクリ
レ−ドブクジエン−スチレン共重合体などのようにアク
リロニトリルに代えて他のアクリル系モノマーを使用し
た共重合体や、ブタジェンに代えて他のジエン系モノマ
ーもしくはアクリルゴムを使用した共重合体や、スチレ
ンに代えて他のスチレン系モノマーを使用した共重合体
なども使用できるものである。 延伸したときに白化するフィルムを形成する合成樹脂の
添加量は塩化ビニル系樹脂100重量部に対し、30〜
300重量部であり、好ましくは50〜200重屋部で
ある。30重量部未満では、得られる塩化ビニル系樹脂
レザーが折り曲げたり、揉み加工を施したときに、折り
曲げられた部分とそうでない部分とでの色相の差が少な
くなる傾向があり、一方300重景部を越えると得られ
る塩化ビニル系樹脂レザーは、その表面強度が非常に低
下し実用に耐えないし、また白化程度が極端になり品格
を損ねる傾向がある。 延伸したときに白化するフィルムを形成する合成樹脂は
粉粒体の形で添加するのが分散性の点から好ましいが、
これに限定されるものではない。 粉粒体の場合、その大きさは、60〜200メツシュ程
度の大きさが好ましく、粉粒体が大きすぎては均一に分
散させることが困難となり、また小さくなりすぎても取
扱い上、不都合が生じて好ましくない。 また、本発明の塩化ビニル系樹脂には一般に使用されて
いる安定剤を添加することができる。安定則としては、
例えばステアリン酸鉛、ステアリン酸バリウム、ステア
リン酸亜鉛、ステアリン酸カドミウム、ステアリン酸カ
ルシウム等の金属石鹸、ジブチル錫ジラウレート、ジブ
チル錫マレート、有機錫メルカプチド、有機錫スルホン
アミド等の錫系安定剤、三塩基性硫酸鉛、三塩基性亜燐
酸鉛、三塩基性マレイン酸鉛などが用いられ、これらの
安定剤は単独でまたは2種以上を併用して使用でき、特
に安定剤を制限するものではない。 この安定剤の添加量は、塩化ビニル系樹脂100重足部
に対して0.5から10重量部、好ましくは1〜5重量
部程度である。 上記以外に、必要に応して二酸化アンチモン、トリアル
コキシアルキルフォスフェートなどの難燃剤、炭酸カル
シウド、タルク、ハイドロタルサイト、炭酸マグネシウ
ム、水酸化アルミニウム等の充填剤等の他に、加工助剤
、顔料、紫外線吸収剤、帯電防止剤、老化防止剤なども
添加することができる。 本発明においては、延伸したときに白化するフィルムを
形成する合成樹脂を塩化ビニル系樹脂100重量部当た
り30〜300重量部含有する塩化ビニル系樹脂プラス
チゾル組成物からなる着色塩化ビニル系樹脂層は、発泡
層であっても、非発泡層であっても良い。発泡層とする
場合には、発泡剤として例えばアゾジカルボンアミド、
ジニトロソペンタテトラミン、オキシビスベンゼンヒド
ラジドなど一般に塩化ビニル系樹脂の発泡剤として用い
られるものを使用して発泡させることができる。発泡剤
の添加量は、どの程度発泡させるかにより適宜選択しな
ければならないが、−船釣には塩化ビニル系樹脂100
重量部に対して1〜5重量部である。 さらに、本発明においては、延伸したときに白化するフ
ィルムを形成する合成樹脂を塩化ビニル系樹脂100重
量部当たり30〜300重量部含有する塩化ビニル系樹
脂プラスチゾル組成物を機械発泡させて発泡層とするこ
ともできる。この場合には、整泡剤としてアルキルベン
ゼンスルホン酸す1−リウム、アルキルヘンゼンスルホ
ン酸カリラム等の有機界面活性剤やポリジメチルシロキ
サン、ポリメチルフェニルシロキサン等のシリコーン油
を用いるのが好ましい。整泡剤の添加量は塩化ビニル系
樹脂100重足部に対して0.1〜5重量部である。 さらにまた、本発明においては、延伸したときに白化す
るフィルムを形成する合成樹脂を塩化ビニル系樹脂10
0重量部当たり30〜300重量部含有する塩化ビニル
系樹脂プラスチゾル組成物からなる着色塩化ビニル系樹
脂層と、基材の間に塩化ビニル系樹脂プラスチゾル組成
物からなる皮膜層を介在させることもできるものである
。この皮MNは発泡層であっても、非発泡層であっても
良いものである。 〔作用〕 本発明の塩化ビニル系樹脂シートは、基材に、延伸した
ときに白化するフィルムを形成する合成樹脂を塩化ビニ
ル系樹脂100重量部当たり30〜300重量部含有す
る塩化ビニル系樹脂プラスチゾル組成物からなる着色塩
化ビニル系樹脂層が形成されているので、折り曲げたり
、揉の加工を施したときに、折り曲げられた部分の着色
塩化ビニル系樹脂層中の合成樹脂が延伸され白化するの
で、着色塩化ビニル系樹脂の色が白味がかり、折り曲げ
られない部分と色相のコントラストができるものである
。したがって、本発明の可変色塩化ビニル系樹脂シート
を使用して鞄や袋物を作成した場合には、自然な色相コ
ントラストが現れ、従来の塩化ビニル系樹脂レザーでは
得られない天然皮革に酷似した外観を呈するものである
。 〔実施例〕 実施例1 第1表に示す配合例1の塩化ビニル樹脂プラスチゾルを
ライカイ機で20分混練後、革絞状の凹凸模様を有する
離型紙に厚み0.20mmになるように塗布し、これを
150°Cで2分間加熱ゲル化した後、塩化ビニル樹脂
プラスチゾルよりなる接着剤を塗布し、次いで基材であ
る織布を貼り合わせ、これを200°Cで3分間加熱発
泡させて塩化ビニル樹脂レザーを得た。得られた塩化ビ
ニル樹脂し1 ザーは離型紙に形成された凹凸模様が明確に転写されて
おり、皮革調の良好な外観を有するものであったが、そ
のままでは単調な色相であり、色相コントラストを有す
るものではなかった。この塩化ビニル樹脂レザーに手で
揉め処理を施す色相コントラスト試験を行なうと、揉の
処理により折り曲げられた部分は白味を帯びた色に変色
し色相コントラストが現れ、天然皮革の外観により近い
塩化ビニル樹脂レザーが得られるものである。
[Industrial Application Field] The present invention prevents discoloration of the folded portion when it is bent, rubbed, or embossed.
This invention relates to a vinyl chloride resin sheet that has an appearance that closely resembles natural leather. [Prior art] Conventionally, vinyl chloride resin leather has been produced by forming a foamable colored vinyl chloride resin layer on the surface of a base material, and then applying non-foaming vinyl chloride colored in the same color on the foamable vinyl chloride resin layer. It is known to form a surface layer of vinyl chloride resin and then heat and foam it. However, when this conventional vinyl chloride resin leather is cut and sewn to make bags and bags, it is not possible to use natural leather. Unlike bags and bags that are cut and sewn, the appearance is clearly different from those made of natural leather, especially when folded or
When rubbed, when embossing was applied, there was no difference in hue between the folded part and the unfolded part, and only a monotonous result was obtained. In order to approximate the appearance of natural leather, the surface of the vinyl chloride resin leather is shaded, a colored vinyl chloride resin foam layer is provided on the base material, and a colored vinyl chloride resin foam layer is placed on top of the colored vinyl chloride resin foam layer. PVC resin leather, etc., has been developed that forms a unique non-foamed PVC resin layer, and when embossed, the hue of the PVC resin foam layer appears in the recesses, giving the same appearance as shadowed leather. . [Problems to be Solved by the Invention] However, a colored vinyl chloride resin foam layer is provided on a base material of a shadow-applied vinyl chloride resin leather, and a colored vinyl chloride resin foam layer is disposed on the colored vinyl chloride resin foam layer. A non-foamed PVC resin layer is formed, and when embossed, the hue of the PVC resin foam layer appears in the recesses, and the PVC resin leather has an appearance similar to that of a shaded layer, and the hue contrast is always maintained. Although it is somewhat similar in appearance to natural leather, when it is folded or rubbed, there is no difference in hue contrast between the folded part and the unfolded part, resulting in an inferior appearance. It was something. As a result of intensive research to eliminate the drawbacks of the above-mentioned conventional techniques, the present inventors focused on a synthetic resin film that forms a film that whitens when stretched, and by applying this to vinyl chloride resin resin, When folded,
The inventors completed the present invention by discovering that the folded portion changes to a whitish hue, giving it the appearance of being shadowed. [Means for Solving the Problems] In other words, the present invention provides the following: (1) A synthetic resin that forms a film that whitens when stretched is added to the base material in an amount of 3 parts by weight per 100 parts by weight of vinyl chloride resin.
A vinyl chloride resin sheet comprising a colored vinyl chloride resin layer made of a vinyl chloride resin plastisol composition containing 0 to 300 parts by weight. (2) The variable color vinyl chloride resin sheet according to claim 1, wherein a surface layer made of a transparent or translucent synthetic resin is formed on the colored vinyl chloride resin layer. A colored synthetic resin layer is formed, and on the colored synthetic resin layer, a synthetic resin that forms a film that becomes white when stretched is added in an amount of 30 to 300 parts per 100 parts by weight of vinyl chloride resin.
A vinyl chloride resin sheet comprising a transparent vinyl chloride resin layer made of a vinyl chloride resin plus decyl composition containing parts by weight. (4) The variable color vinyl chloride resin sheet according to claim 1, wherein a surface layer made of a transparent or translucent synthetic resin is formed on the transparent vinyl chloride resin layer. The vinyl chloride resin used in the present invention includes polyvinyl chloride, or vinyl chloride and other vinyl monomers, such as vinyl acetate, ethylene, propylene, maleic ester, methyl methacrylate, methacrylic ester,
Examples include copolymers with acrylic acid esters, higher vinyl ethers, etc., and blends thereof. A plasticizer is added to this vinyl chloride resin, and examples of plasticizers that can be used include di-2-ethylhexyl phthalate (DOP), diisodecyl phthalate (DINP), butylbenzyl phthalate (B
BP), phthalic acid diisodecyl ester (DIDP),
Common phthalate ester plasticizers such as diundecyl phthalate (DUP), dioctyl adipate (DOA), dioctyl sebacate (DO3), dioctyl azelaate (D
General fatty acid ester plasticizers represented by OZ), trimellitate ester plasticizers represented by trioctyl trimellitate (TOTM), tricresyl phosphate (TCP), and tricylyl phosphate (TXP). ), polymer plasticizers such as epoxy plasticizers such as epoxidized soybean oil, polyester plasticizers such as polypropylene adipate, etc.
Common plasticizers such as chlorinated paraffin can be used, but
These plasticizers may be used alone or in combination of two or more. The amount of plasticizer added is preferably 30 to 100 parts by weight per 100 parts by weight of the vinyl chloride resin. Transparent synthetic resins that form a film that turns white when stretched include polyolefin resins such as polyethylene, acrylic-styrene copolymer resins, methacrylic acid resins, AB
Examples include S-based resins and nitrated cellulose-based resins. AB
Acrylonitrile-butadiene-styrene copolymer is generally used as the S-based resin, but copolymers that use other acrylic monomers instead of acrylonitrile, such as methyl methacrylate-butadiene-styrene copolymer, are also used. Also usable are copolymers using other diene monomers or acrylic rubber in place of butadiene, and copolymers using other styrene monomers in place of styrene. The amount of synthetic resin that forms a film that whitens when stretched is 30 to 100 parts by weight of vinyl chloride resin.
The amount is 300 parts by weight, preferably 50 to 200 parts by weight. If the amount is less than 30 parts by weight, when the obtained vinyl chloride resin leather is bent or rubbed, the difference in hue between the folded part and the unfolded part tends to be small; The vinyl chloride resin leather obtained when the temperature exceeds 50% has a very low surface strength and is not suitable for practical use, and the degree of whitening tends to be extreme, impairing its quality. From the viewpoint of dispersibility, it is preferable to add the synthetic resin that forms a film that whitens when stretched in the form of powder or granules.
It is not limited to this. In the case of powder or granules, the size is preferably about 60 to 200 mesh; if the powder or granules are too large, it will be difficult to uniformly disperse them, and if they are too small, they will be inconvenient in handling. It occurs and is not desirable. Furthermore, commonly used stabilizers can be added to the vinyl chloride resin of the present invention. As a stability law,
For example, metal soaps such as lead stearate, barium stearate, zinc stearate, cadmium stearate, calcium stearate, tin stabilizers such as dibutyltin dilaurate, dibutyltin malate, organotin mercaptide, organotin sulfonamide, tribasic Lead sulfate, tribasic lead phosphite, tribasic lead maleate, etc. are used, and these stabilizers can be used alone or in combination of two or more, and there are no particular restrictions on the stabilizers. The amount of the stabilizer added is about 0.5 to 10 parts by weight, preferably about 1 to 5 parts by weight, per 100 parts by weight of the vinyl chloride resin. In addition to the above, in addition to flame retardants such as antimony dioxide and trialkoxyalkyl phosphate, fillers such as calcium carbonate, talc, hydrotalcite, magnesium carbonate, and aluminum hydroxide, processing aids, Pigments, ultraviolet absorbers, antistatic agents, antiaging agents, etc. can also be added. In the present invention, the colored vinyl chloride resin layer is made of a vinyl chloride resin plastisol composition containing 30 to 300 parts by weight of a synthetic resin that forms a film that becomes white when stretched, per 100 parts by weight of the vinyl chloride resin. It may be a foamed layer or a non-foamed layer. When forming a foam layer, foaming agents such as azodicarbonamide,
Foaming can be carried out using agents generally used as foaming agents for vinyl chloride resins, such as dinitrosopentatetramine and oxybisbenzene hydrazide. The amount of foaming agent added must be selected appropriately depending on the degree of foaming, but - for boat fishing, vinyl chloride resin 100
The amount is 1 to 5 parts by weight. Furthermore, in the present invention, a vinyl chloride resin plastisol composition containing 30 to 300 parts by weight of a synthetic resin that forms a film that whitens when stretched per 100 parts by weight of vinyl chloride resin is mechanically foamed to form a foam layer. You can also. In this case, it is preferable to use as a foam stabilizer an organic surfactant such as 1-lium alkylbenzenesulfonate or potassiumlylum alkylbenzenesulfonate, or a silicone oil such as polydimethylsiloxane or polymethylphenylsiloxane. The amount of the foam stabilizer added is 0.1 to 5 parts by weight per 100 parts by weight of the vinyl chloride resin. Furthermore, in the present invention, a synthetic resin that forms a film that whitens when stretched is a vinyl chloride resin with 10%
A film layer made of a vinyl chloride resin plastisol composition may be interposed between a colored vinyl chloride resin layer made of a vinyl chloride resin plastisol composition containing 30 to 300 parts by weight per 0 parts by weight and the base material. It is something. This skin MN may be a foamed layer or a non-foamed layer. [Function] The vinyl chloride resin sheet of the present invention is a vinyl chloride resin plastisol containing 30 to 300 parts by weight of a synthetic resin that forms a film that whitens when stretched, per 100 parts by weight of the vinyl chloride resin. Since a colored vinyl chloride resin layer is formed from the composition, when it is bent or rolled, the synthetic resin in the colored vinyl chloride resin layer at the bent part will be stretched and whitened. The color of the colored vinyl chloride resin is whitish, creating a contrast in hue with the part that cannot be bent. Therefore, when bags and bags are made using the variable color PVC resin sheet of the present invention, a natural hue contrast appears and the appearance closely resembles natural leather, which cannot be obtained with conventional PVC resin leather. It exhibits the following. [Example] Example 1 After kneading the vinyl chloride resin plastisol of Formulation Example 1 shown in Table 1 for 20 minutes in a Raikai machine, it was applied to a release paper having a leather-like uneven pattern to a thickness of 0.20 mm. After gelling this by heating at 150°C for 2 minutes, an adhesive made of vinyl chloride resin plastisol was applied, and then a woven fabric as a base material was attached, and this was heated and foamed at 200°C for 3 minutes. PVC resin leather was obtained. The obtained vinyl chloride resin resin had a clear transfer of the uneven pattern formed on the release paper and had a good leather-like appearance, but as it was, the color was monotonous and the color contrast was poor. It did not have a When we performed a hue contrast test on this vinyl chloride resin leather by rubbing it by hand, we found that the folded portions of the leather changed to a whitish color due to the rubbing process, and a hue contrast appeared. Resin leather is obtained.

【色相コントラスト試験】[Hue contrast test]

塩化ビニル樹脂レザーに手で揉め処理を施し、現れる色
相コントラストの程度を目視で次の基準により判定した
。 ○・・・色相コントラストが明確に現れる。 △・・・色相コントラストが不鮮明ではあるが現れる。 ×・・・色相コントラストが現れない。 実施例2、比較例1〜2 配合例2及び配合例5〜6の塩化ビニル樹脂プラスチゾ
ルを使用し、実施例1と同様にして塩化2 ビニル樹脂レザーを得た。この塩化ビニル樹脂レザーに
ついて実施例1と同様の試験を行なった。 その結果については第2表に示す。 実施例3〜4 第1表に示す配合例3〜4の塩化ビニル樹脂プラスチゾ
ルをライカイ機で20分混線後、革絞状の凹凸模様を有
する離型紙に厚み0.20mmになるように塗布し、次
いで基材である織布を貼り合わせ、これを150°Cで
2分間加熱ゲル化し、離型紙を剥離して塩化ビニル樹脂
レザーを得た。得られた塩化ビニル樹脂レザーについて
実施例1と同様の試験を行なった。その結果については
第2表に示す。 実施例5〜6、比較例3 配合例1.3.5.7.8の塩化ビニル樹脂プラスチゾ
ルを使用し、配合例1と配合例8、配合例7と配合例3
、配合例5と配合例8との組合せで離型紙上に2層引き
する以外は実施例1と同様にして塩化ビニル樹脂レザー
を得た。得られた塩化ビニル樹脂レザーについて実施例
1と同様の試験を行なった。その結果については第2表
に示す。 実施例7〜8 配合例1.4.7.8の塩化ビニル樹脂プラスヂヅルを
使用し、配合例4と配合例7と配合例8との組合せ、配
合例1と配合例マと配合例8との組合せで、それぞれ離
型紙上に配合例8、配合例4、配合例7および配合例8
、配合例1、配合例7の順序で3層引きする以外は実施
例1と同様にして塩化ビニル樹脂レザーを得た。得られ
た塩化ビニル樹脂レザーについて実施例1と同様の試験
を行なった。その結果については第2表に示す。 (以下余白) 第  1  表 第  2  表 5 表から明らかなように本発明の塩化ビニル系樹脂シート
は、基材に、延伸したときに白化するフィルムを形成す
る合成樹脂を塩化ビニル系樹脂100重量部当たり30
〜300重量部含有する塩化ビニル系樹脂プラスチゾル
組成物からなる着色塩化ビニル系樹脂層が形成されてい
るので、折り曲げたり、揉みゃ、エンボス加工を施した
ときに、折り曲げられた部分の着色塩化ビニル系樹脂層
中の透明合成樹脂が延伸され白化するので、着色塩化ビ
ニル系樹脂の色が白味がかり、折り曲げられない部分と
色相のコントラストができるものである(実施例1〜7
)。 一方延伸したときに白化するフィルムを形成する合成樹
脂を塩化ビニル系樹脂100重量部当たり30〜300
重量部の範囲を外れた場合には、折り曲げたり、揉みゃ
、エンボス加工を施したときに、折り曲げられた部分の
白化が充分でなく色相コントラストが不鮮明であったり
、わずかに変形させるだけで白化程度が退・度に出てし
まい、天然皮革様外観から遠のいた品格のないものにな
っ6 たり、表面強度が実用に耐えない程度に低下してしまっ
たりして(比較例1〜3)良好な可変色塩化ビニル系樹
脂レザーは得られないことがわかる。 〔発明の効果〕 本発明は、このよう基材に、延伸したときに白化するフ
ィルムを形成する合成樹脂を塩化ビニル系樹脂100重
量部当たり30〜300重量部含有する塩化ビニル系樹
脂プラスチゾル組成物からなる着色塩化ビニル系樹脂層
が形成されているので、折り曲げたり、揉みゃ、エンボ
ス加工を施したときに、加工された部分の着色塩化ビニ
ル系樹脂層中の透明合成樹脂が延伸され白化するので、
着色塩化ビニル系樹脂の色が白味がかり、折り曲げられ
ない部分と色相のコントラストができるものである。し
たがって、本発明の可変色塩化ビニル系樹脂シートを使
用して鞄や袋物を作成した場合には、自然な色相コント
ラストが現れ、従来の塩化ビニル系樹脂レザーでは得ら
れない天然皮革に酷似した外観を呈するものである。
The vinyl chloride resin leather was rubbed by hand, and the degree of hue contrast that appeared was visually judged according to the following criteria. ○: Hue contrast clearly appears. Δ: Hue contrast appears although it is unclear. ×...Hue contrast does not appear. Example 2, Comparative Examples 1 and 2 Vinyl chloride resin plastisols of Formulation Example 2 and Formulation Examples 5 and 6 were used to obtain divinyl chloride resin leather in the same manner as in Example 1. The same test as in Example 1 was conducted on this vinyl chloride resin leather. The results are shown in Table 2. Examples 3 to 4 The vinyl chloride resin plastisols of formulation examples 3 to 4 shown in Table 1 were mixed in a Raikai machine for 20 minutes, and then applied to a release paper having a leather-wrapped pattern to a thickness of 0.20 mm. Next, a woven fabric as a base material was bonded together, and this was gelled by heating at 150° C. for 2 minutes, and the release paper was peeled off to obtain a vinyl chloride resin leather. The same tests as in Example 1 were conducted on the obtained vinyl chloride resin leather. The results are shown in Table 2. Examples 5 to 6, Comparative Example 3 Using the vinyl chloride resin plastisol of Formulation Example 1.3.5.7.8, Formulation Example 1, Formulation Example 8, Formulation Example 7, and Formulation Example 3
A vinyl chloride resin leather was obtained in the same manner as in Example 1, except that a combination of Formulation Example 5 and Formulation Example 8 was applied in two layers on release paper. The same tests as in Example 1 were conducted on the obtained vinyl chloride resin leather. The results are shown in Table 2. Examples 7 to 8 Using the vinyl chloride resin plus crane in Formulation Example 1.4.7.8, combinations of Formulation Example 4, Formulation Example 7, and Formulation Example 8, combination of Formulation Example 1, Formulation Example M, and Formulation Example 8. Combinations of Formulation Example 8, Formulation Example 4, Formulation Example 7, and Formulation Example 8 on the release paper, respectively.
A vinyl chloride resin leather was obtained in the same manner as in Example 1 except that three layers were formed in the order of Formulation Example 1 and Formulation Example 7. The same tests as in Example 1 were conducted on the obtained vinyl chloride resin leather. The results are shown in Table 2. (The following are blank spaces) Table 1 Table 2 Table 5 As is clear from Table 5, the vinyl chloride resin sheet of the present invention has a base material containing a synthetic resin that forms a film that becomes white when stretched, and 100% by weight of the vinyl chloride resin. 30 per part
Since a colored vinyl chloride resin layer made of a vinyl chloride resin plastisol composition containing ~300 parts by weight is formed, when it is bent, rubbed, or embossed, the colored vinyl chloride in the bent portion is removed. Since the transparent synthetic resin in the resin layer is stretched and whitened, the color of the colored vinyl chloride resin becomes whitish, creating a contrast in hue with the part that cannot be bent (Examples 1 to 7)
). On the other hand, a synthetic resin that forms a film that becomes white when stretched is added in an amount of 30 to 300 parts per 100 parts by weight of vinyl chloride resin.
If the weight part is outside the range, when folded, rubbed, or embossed, the folded area may not be sufficiently whitened and the hue contrast may be unclear, or even slight deformation may result in whitening. In some cases, the quality of the product degrades and deteriorates, resulting in a lack of dignity that is far from the natural leather-like appearance6, and the surface strength decreases to an extent that is not practical (Comparative Examples 1 to 3). It can be seen that it is not possible to obtain polyvinyl chloride resin leather with variable color. [Effects of the Invention] The present invention provides a vinyl chloride resin plastisol composition containing, in the base material, 30 to 300 parts by weight of a synthetic resin that forms a film that whitens when stretched, per 100 parts by weight of the vinyl chloride resin. A colored vinyl chloride resin layer is formed, so when it is bent, rubbed, or embossed, the transparent synthetic resin in the colored vinyl chloride resin layer in the processed area stretches and whitens. So,
The color of the colored vinyl chloride resin is whitish, creating a contrast in hue with the part that cannot be bent. Therefore, when bags and bags are made using the variable color PVC resin sheet of the present invention, a natural hue contrast appears and the appearance closely resembles natural leather, which cannot be obtained with conventional PVC resin leather. It exhibits the following.

Claims (4)

【特許請求の範囲】[Claims] (1)基材に、延伸したときに白化するフィルムを形成
する合成樹脂を塩化ビニル系樹脂100重量部当たり3
0〜300重量部含有する塩化ビニル系樹脂プラスチゾ
ル組成物からなる着色塩化ビニル系樹脂層を形成してな
る塩化ビニル系樹脂シート。
(1) Add 3 parts to the base material of a synthetic resin that forms a film that whitens when stretched per 100 parts by weight of vinyl chloride resin.
A vinyl chloride resin sheet comprising a colored vinyl chloride resin layer made of a vinyl chloride resin plastisol composition containing 0 to 300 parts by weight.
(2)着色塩化ビニル系樹脂層上に透明または半透明の
合成樹脂よりなる表面層を形成してなる請求項1記載の
可変色塩化ビニル系樹脂シート
(2) The variable color vinyl chloride resin sheet according to claim 1, wherein a surface layer made of a transparent or translucent synthetic resin is formed on the colored vinyl chloride resin layer.
(3)基材に、少なくとも1層の着色合成樹脂層を形成
し、該着色合成樹脂層上に、延伸したときに白化するフ
ィルムを形成する合成樹脂を塩化ビニル系樹脂100重
量部当たり30〜300重量部含有する塩化ビニル系樹
脂プラスチゾル組成物からなる透明塩化ビニル系樹脂層
を形成してなる塩化ビニル系樹脂シート。
(3) At least one colored synthetic resin layer is formed on the base material, and on the colored synthetic resin layer, a synthetic resin that forms a film that becomes white when stretched is added in an amount of 30 to 30 parts per 100 parts by weight of vinyl chloride resin. A vinyl chloride resin sheet comprising a transparent vinyl chloride resin layer made of a vinyl chloride resin plastisol composition containing 300 parts by weight.
(4)透明塩化ビニル系樹脂層上に透明または半透明の
合成樹脂よりなる表面層を形成してなる請求項1記載の
可変色塩化ビニル系樹脂シート
(4) The variable color vinyl chloride resin sheet according to claim 1, wherein a surface layer made of a transparent or translucent synthetic resin is formed on the transparent vinyl chloride resin layer.
JP2398190A 1990-02-02 1990-02-02 Variable color PVC resin sheet Expired - Fee Related JP2798463B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2398190A JP2798463B2 (en) 1990-02-02 1990-02-02 Variable color PVC resin sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2398190A JP2798463B2 (en) 1990-02-02 1990-02-02 Variable color PVC resin sheet

Publications (2)

Publication Number Publication Date
JPH03234879A true JPH03234879A (en) 1991-10-18
JP2798463B2 JP2798463B2 (en) 1998-09-17

Family

ID=12125741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2398190A Expired - Fee Related JP2798463B2 (en) 1990-02-02 1990-02-02 Variable color PVC resin sheet

Country Status (1)

Country Link
JP (1) JP2798463B2 (en)

Also Published As

Publication number Publication date
JP2798463B2 (en) 1998-09-17

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