JP2948822B2 - Weatherproof synthetic leather - Google Patents
Weatherproof synthetic leatherInfo
- Publication number
- JP2948822B2 JP2948822B2 JP63334759A JP33475988A JP2948822B2 JP 2948822 B2 JP2948822 B2 JP 2948822B2 JP 63334759 A JP63334759 A JP 63334759A JP 33475988 A JP33475988 A JP 33475988A JP 2948822 B2 JP2948822 B2 JP 2948822B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- resin layer
- synthetic leather
- transparent resin
- ultraviolet absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、車輛用内装材、椅子用カバー、靴用素材等
に使用される耐候性合成レザーに関する。The present invention relates to a weather-resistant synthetic leather used for vehicle interior materials, chair covers, shoe materials and the like.
プリント層の摩耗、破損等を防止するため該プリント
層上に設けた上引透明性樹脂層を有する合成レザーが知
られているが、この種の合成レザーは上引透明樹脂層の
ないレザーに比べて耐候劣化が著しく速い。この劣化現
象は上引透明性樹脂層表面において主におこるが、この
部分のみに限らず、光が透明性樹脂層を透過するため該
透明性層の下層（プリント層や中引樹脂層など）にも波
及する。しかも透明性層では、該透明性層を透過した光
の一部が下層で反射して戻ってくるために更に劣化が進
行し易い欠点があった。Synthetic leather having an upper-coating transparent resin layer provided on the print layer to prevent abrasion, breakage, and the like of the print layer is known, but this kind of synthetic leather is a leather without an upper-coating transparent resin layer. Compared to this, the weather resistance is remarkably fast. This deterioration phenomenon mainly occurs on the surface of the upper transparent resin layer, but is not limited to this portion. Since light passes through the transparent resin layer, the lower layer of the transparent layer (such as a print layer or a middle resin layer) is formed. Spills over to In addition, the transparent layer has a drawback that deterioration proceeds more easily because a part of the light transmitted through the transparent layer is reflected by the lower layer and returns.
本発明は上記の問題点を解決するためになされたもの
で、上引透明性樹脂層を具備していても優れた耐候性を
有する合成レザーを提供することを目的とする。The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a synthetic leather having excellent weather resistance even if it has an upper-coating transparent resin layer.
本発明は、 （１） 基布上に、少なくとも中引樹脂層、プリント
層、上引透明性樹脂層を順次積層してなる合成レザーに
おいて、上引透明性樹脂層と中引樹脂層に紫外線吸収剤
を混入してなることを特徴とする耐候性合成レザー。The present invention provides (1) a synthetic leather comprising a base fabric, on which at least an intermediate coating resin layer, a print layer, and an upper coating transparent resin layer are sequentially laminated, wherein the upper coating transparent resin layer and the intermediate coating resin layer have ultraviolet rays. A weather-resistant synthetic leather characterized by being mixed with an absorbent.
（２） 紫外線吸収剤を中引樹脂層より上引透明性樹脂
層に多量に混入してなる請求項１記載の耐項性合成レザ
ー。(2) The synthetic leather according to claim 1, wherein a large amount of an ultraviolet absorbent is mixed into the transparent resin layer above the intermediate resin layer.
を要旨とするものである。It is the gist.
以下、本発明の実施例を図面に基づき説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
本発明の耐候性合成レザーは、基布上に少なくとも中
引樹脂層、プリント層、上引透明性樹脂層を順次積層し
てなる構造のものであり、第１図の例示の本発明耐候性
合成レザーは、基布１上にスポンジ層２、中引樹脂層
３、プリント層４、上引透明性樹脂層５を順次積層した
構成からなる。The weather-resistant synthetic leather of the present invention has a structure in which at least a middle-coating resin layer, a print layer, and a top-coating transparent resin layer are sequentially laminated on a base cloth. The synthetic leather has a structure in which a sponge layer 2, an intermediate resin layer 3, a print layer 4, and an upper transparent resin layer 5 are sequentially laminated on a base cloth 1.
基布１としては、レーヨン、綿、ポリエステル繊維、
ポリアミド繊維、ビニロン繊維等の材質からなる織布、
編布、不織布等が使用される。スポンジ層２は発泡性合
成樹脂層等からなるものであり、例えば塩化ビニル系樹
脂、ウレタン系樹脂、アクリル系樹脂、ポリエステル系
樹脂、ポリアミド系樹脂、エチレン−酢酸ビニル共重合
樹脂等の熱可塑性樹脂に発泡剤、可塑剤等を含有させて
なるものである。中でも、塩化ビニル系樹脂からなる発
泡層が好ましく、その樹脂としてはポリ塩化ビニル（塩
化ビニル単独重合体）、および塩化ビニルと他のモノマ
ー、例えばエチレン、酢酸ビニル、ビニルエーテル、マ
レイン酸エステル、（メタ）アクリル酸、（メタ）アク
リル酸エステル等との共重合体のほか、ポリ塩化ビニル
樹脂と他のポリマーとの混合物等が挙げられる。As the base cloth 1, rayon, cotton, polyester fiber,
Woven cloth made of materials such as polyamide fiber and vinylon fiber,
Knitted fabrics, nonwoven fabrics and the like are used. The sponge layer 2 is formed of a foamable synthetic resin layer or the like, and is, for example, a thermoplastic resin such as a vinyl chloride resin, a urethane resin, an acrylic resin, a polyester resin, a polyamide resin, and an ethylene-vinyl acetate copolymer resin. And a foaming agent, a plasticizer and the like. Among them, a foamed layer made of a vinyl chloride resin is preferable. Examples of the resin include polyvinyl chloride (vinyl chloride homopolymer), and vinyl chloride and other monomers such as ethylene, vinyl acetate, vinyl ether, maleic ester, and ) In addition to copolymers with acrylic acid, (meth) acrylic acid esters, and the like, a mixture of a polyvinyl chloride resin with another polymer, and the like are included.
中引樹脂層３はスポンジ層２のセルに影響させること
なくプリント層を設けるための下地層となるもので、例
えば、スポンジ層の形成に使用する熱可塑性樹脂等を用
いた非発泡性樹脂層からなるものである。The thinning resin layer 3 serves as a base layer for providing a print layer without affecting the cells of the sponge layer 2. For example, a non-foamable resin layer using a thermoplastic resin or the like used for forming the sponge layer It consists of
尚、本発明においてはスポンジ層を設けなくともよ
い。In the present invention, it is not necessary to provide a sponge layer.
プリント層４は任意の着色、模様等を現出させるため
のものであり、公知の印刷手段等にて形成される。The print layer 4 is for displaying an arbitrary coloring, pattern, or the like, and is formed by a known printing means or the like.
上引透明性樹脂層５は、プリント層４上に設けて表面
保護層として機能し、該層４を隠蔽しないよう透明性を
有するものである。この樹脂層５は例えば、スポンジ層
の形成に使用する熱可塑性樹脂等の合成樹脂にて形成さ
れる。The upper transparent resin layer 5 is provided on the print layer 4 and functions as a surface protective layer, and has transparency so as not to cover the layer 4. The resin layer 5 is formed of, for example, a synthetic resin such as a thermoplastic resin used for forming a sponge layer.
本発明は上記上引透明性樹脂層５と中引樹脂層３に紫
外線吸収剤を混入して構成する。紫外線吸収剤としては
ベンゾトリアゾール系、ベンゾフェノン系、サリシレー
トエステル系、ベンゾエートエステル系等の紫外線吸収
剤、更にはこれら紫外線吸収剤に酸化防止剤が複合化さ
れたもの等が使用される。紫外線吸収剤の混入量は各樹
脂層を形成するための樹脂100重量部に対して0.1〜1.0
重量部程度が好ましい。また合成レザーにより優れた耐
候性を付与するために、紫外線吸収剤を中引樹脂層より
上引透明性樹脂層に多量に混入させる。この際の混入比
率は、上引透明性層混入量：中引層混入量＝2:1〜3:1程
度が好ましい。In the present invention, the above-mentioned transparent resin layer 5 and the resin layer 3 are mixed with an ultraviolet absorber. As the ultraviolet absorber, a benzotriazole-based, benzophenone-based, salicylate-based, benzoate-ester-based ultraviolet absorber, or a combination of these ultraviolet absorbers with an antioxidant is used. The amount of the ultraviolet absorber mixed is 0.1 to 1.0 with respect to 100 parts by weight of the resin for forming each resin layer.
It is preferably about parts by weight. Further, in order to impart more excellent weather resistance to the synthetic leather, a large amount of an ultraviolet absorber is mixed in the upper transparent resin layer rather than the intermediate resin layer. The mixing ratio at this time is preferably about 2: 1 to 3: 1 of the upper transparent layer mixing amount: the middle coating layer mixing amount.
本発明合成レザーは、必要に応じて所定の層に光安定
剤、抗酸化剤、抗ウレタン剤、難燃剤等を添加させても
よい。特にこれら添加剤のうち、ヒンダートアミン系光
安定剤等の光安定剤の添加併用が好ましく、この場合に
は耐候性能をさらに向上させることができる。この場合
の光安定剤の添加量は、各樹脂層を形成するための樹脂
100重量部に対して0.1〜0.5重量部程度がよく、紫外線
吸収剤と同様に中引樹脂層より上引透明性樹脂層に多量
に混入させるのがよい。また、その際の混入比率も紫外
線吸収剤の混入比率と同様の範囲が好ましい。In the synthetic leather of the present invention, a light stabilizer, an antioxidant, an anti-urethane agent, a flame retardant, and the like may be added to a predetermined layer as needed. In particular, among these additives, a light stabilizer such as a hindered amine light stabilizer is preferably used in combination. In this case, the weather resistance can be further improved. In this case, the amount of the light stabilizer to be added depends on the resin used to form each resin layer.
About 0.1 to 0.5 parts by weight per 100 parts by weight is preferable, and it is preferable that a large amount be mixed into the upper-coating transparent resin layer more than the middle-coating resin layer like the ultraviolet absorber. The mixing ratio at this time is preferably in the same range as the mixing ratio of the ultraviolet absorber.
また、本発明では基布上に上記各層を積層形成するに
当たっては、コーティング法、カレンダー法等の従来周
知の手段を用いて行うことができる。In the present invention, the above-mentioned layers can be formed on the base fabric by lamination using a conventionally known means such as a coating method and a calendering method.
次に、具体的実施例を挙げて本発明を更に詳述する。 Next, the present invention will be described in more detail with reference to specific examples.
実施例１〜３および比較例１〜４ 厚さ0.35mmのスフ両面メリヤスからなる基布上に、ス
ポンジ層となすための下記配合処方Ａの組成物をカレン
ダー法にて積層し、次いで下記配合処方Ｂからなる組成
物を同様にカレンダー法にて積層して中引層を構成し、
その上に印刷手段にてプリント層を形成し、次いで下記
配合処方Ｃからなる組成物をカレンダー法にて積層して
上引透明性樹脂層を形成させた後、加熱して前記スポン
ジ層の樹脂組成物を発泡させた。さらに上引透明性樹脂
層の表面をフラットロールにて平面加工し、平面がフラ
ットな合成レザーを作成した（実施例１、２、３）。Examples 1 to 3 and Comparative Examples 1 to 4 A composition of the following formulation A for forming a sponge layer was laminated by a calender method on a 0.35 mm-thick double-sided knitted fabric, and then the following formulation A composition comprising Formulation B is similarly laminated by a calender method to form an intermediate layer,
A printing layer is formed thereon by printing means, and then a composition having the following formulation C is laminated by a calendar method to form an uppering transparent resin layer, and then heated to form a resin for the sponge layer. The composition was foamed. Further, the surface of the upper transparent resin layer was flattened by a flat roll to produce a synthetic leather having a flat flat surface (Examples 1, 2, and 3).
配合処方Ａ （スポンジ層配合処方） （重量部） ポリ塩化ビニル 100 可塑剤（DOP） 80 安定剤（Ba−Zn系複合安定剤） ３ 発泡剤（アゾジカーボンアミド） ３ 充填剤（炭酸カルシウム） 10 着色剤（酸化チタン） ５ 配合処方Ｂ （中引樹脂層配合処方） （重量部） ポリ塩化ビニル 100 可塑剤（DOP） 80 安定剤（Ba−Zn系複合安定剤） ２ 紫外線吸収剤（ベンゾトリアゾール系紫外線吸収剤）
※ 光安定剤（ヒンダートアミン系光安定剤） ※ 抗酸化剤（フェノール系抗酸化剤） 0.1 抗ウレタン剤（Ba−Zn系複合抗ウレタン剤） 1.0 キレーター（リン酸系キレーター） 1.0 着色剤（酸化チタン） ８ 配合処方Ｃ （上引透明性樹脂層配合処方） （重量部） ポリ塩化ビニル 100 可塑剤（DOP） 80 安定剤（Ba−Zn系複合安定剤） ２ 紫外線吸収剤（ベンゾトリアゾール系紫外線吸収剤）
※ 光安定剤（ヒンダートアミン系光安定剤） ※ 抗酸化剤（フェノール系抗酸化剤） 0.1 抗ウレタン剤（Ba−Zn系複合抗ウレタン剤） 1.0 キレーター（リン酸系キレーター） 1.0 ※・・上記配合処方Ｂ、Ｃにおける紫外線吸収剤及び光
安定剤の各配合量については下記第１表に示す通りであ
る。Formulation A (formulation of sponge layer) (parts by weight) Polyvinyl chloride 100 Plasticizer (DOP) 80 Stabilizer (Ba-Zn composite stabilizer) 3 Blowing agent (azodicarbonamide) 3 Filler (calcium carbonate) 10 Colorant (titanium oxide) 5 Formulation B (Formulation of intermediate resin layer) (parts by weight) Polyvinyl chloride 100 Plasticizer (DOP) 80 Stabilizer (Ba-Zn composite stabilizer) 2 Ultraviolet absorber (benzo) Triazole UV absorber)
* Light stabilizer (hindered amine light stabilizer) * Antioxidant (phenolic antioxidant) 0.1 Antiurethane (Ba-Zn composite antiurethane) 1.0 Chelator (phosphoric acid chelator) 1.0 Colorant ( (Titanium oxide) 8 Formulation C (formulation of the upper transparent resin layer) (parts by weight) Polyvinyl chloride 100 Plasticizer (DOP) 80 Stabilizer (Ba-Zn composite stabilizer) 2 Ultraviolet absorber (benzotriazole type) UV absorber)
* Light stabilizer (hindered amine light stabilizer) * Antioxidant (phenolic antioxidant) 0.1 Antiurethane (Ba-Zn composite antiurethane) 1.0 Chelator (phosphate phosphate chelator) 1.0 * The blending amounts of the ultraviolet absorber and the light stabilizer in the blending formulations B and C are as shown in Table 1 below.
一方、比較例１として上引透明性樹脂層を設けないこ
とと紫外線吸収剤並びに光安定剤を混入させない他は上
記実施例と同じ構成の一般の合成レザーを作成し、比較
例２として紫外線吸収剤並びに光安定剤を混入させない
他は実施例と同じ構成の合成レザーを作成した。On the other hand, a general synthetic leather having the same configuration as that of the above-described embodiment was prepared as Comparative Example 1 except that no upper-coating transparent resin layer was provided and no ultraviolet absorber and light stabilizer were mixed. A synthetic leather having the same configuration as that of the example except that the agent and the light stabilizer were not mixed was prepared.
さらに比較例３、４として、上引透明性樹脂層のみ或
いは中引樹脂層のみに第１表に示す量の紫外線吸収剤お
よび光安定剤を混入し、他は実施例と同じ構成の合成レ
ザーを作成した。Further, as Comparative Examples 3 and 4, the amount of the ultraviolet absorber and the light stabilizer shown in Table 1 was mixed into only the upper transparent resin layer or only the middle resin layer, and the synthetic leather having the same configuration as that of the example was used otherwise. It was created.
得られた各合成レザーに対して下記の試験を行って、
それぞれの耐候性能について調べた。Perform the following test on each obtained synthetic leather,
Each weather resistance was examined.
試験方法は、紫外線ロンライフェードメーター（スガ
試験機（株）社製）を使用し、ブラックパネル温度83℃
で試験した。判定はJISL−0805（汚染用グレースケー
ル）を用いた。その測定結果を第１表に示す。The test was performed using an ultraviolet ray lon fade meter (manufactured by Suga Test Instruments Co., Ltd.) at a black panel temperature of 83 ° C.
Tested. Judgment used JISL-0805 (gray scale for contamination). Table 1 shows the measurement results.
〔発明の効果〕 以上説明したように、本発明の耐候性合成レザーは上
引透明性樹脂層と中引樹脂層に紫外線吸収剤が混入され
ているため、上引透明性樹脂層を有していても耐候劣化
が起こりにくく、特に紫外線吸収剤を上記２層のうち上
引透明性層側に多く混入した場合、外光が該透明性層に
おいて充分に遮断されるため内部側の各層の劣化が防止
され、しかも下層からの反射光による透明性層の劣化も
防止される顕著な効果がある。 [Effect of the Invention] As described above, the weather-resistant synthetic leather of the present invention has an upper-coating transparent resin layer because an ultraviolet absorber is mixed in the upper-coating transparent resin layer and the intermediate-coating resin layer. Even when it is difficult to deteriorate the weather resistance, especially when a large amount of ultraviolet absorber is mixed into the upper transparent layer side of the above two layers, external light is sufficiently blocked in the transparent layer, so that each layer on the inner side has There is a remarkable effect that deterioration is prevented and deterioration of the transparent layer due to reflected light from the lower layer is also prevented.
更に光安定剤を添加した場合には、より劣化防止効果
が向上するものである。Further, when a light stabilizer is added, the effect of preventing deterioration is further improved.
第１図は本発明耐候性合成レザーの一例を示す縦断面図
である。 １……基布、３……中引樹脂層 ４……プリント層、５……上引透明性樹脂層FIG. 1 is a longitudinal sectional view showing an example of the weather-resistant synthetic leather of the present invention. 1 ... base cloth, 3 ... intermediate resin layer 4 ... print layer, 5 ... upper transparent resin layer
Claims (2)
ト層、上引透明性樹脂層を順次積層してなる合成レザー
において、上引透明性樹脂層と中引樹脂層に紫外線吸収
剤を混入してなることを特徴とする耐候性合成レザー。1. A synthetic leather comprising a base cloth, on which at least an intermediate resin layer, a print layer and an upper transparent resin layer are sequentially laminated, wherein the upper transparent resin layer and the intermediate resin layer have an ultraviolet absorber. A weather-resistant synthetic leather characterized by being mixed with.
樹脂層に多量に混入してなる請求項１記載の耐候性合成
レザー。2. The weather-resistant synthetic leather according to claim 1, wherein a large amount of an ultraviolet absorber is mixed into the transparent resin layer above the intermediate resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63334759A JP2948822B2 (en) | 1988-12-29 | 1988-12-29 | Weatherproof synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63334759A JP2948822B2 (en) | 1988-12-29 | 1988-12-29 | Weatherproof synthetic leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02182981A JPH02182981A (en) | 1990-07-17 |
| JP2948822B2 true JP2948822B2 (en) | 1999-09-13 |
Family
ID=18280913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63334759A Expired - Fee Related JP2948822B2 (en) | 1988-12-29 | 1988-12-29 | Weatherproof synthetic leather |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2948822B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW440633B (en) * | 1996-09-27 | 2001-06-16 | Kuraray Co | Suede-like artificial leather and its preparation |
-
1988
- 1988-12-29 JP JP63334759A patent/JP2948822B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02182981A (en) | 1990-07-17 |
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