JPH03224734A - Skin material of foamed product - Google Patents
Skin material of foamed productInfo
- Publication number
- JPH03224734A JPH03224734A JP2143390A JP2143390A JPH03224734A JP H03224734 A JPH03224734 A JP H03224734A JP 2143390 A JP2143390 A JP 2143390A JP 2143390 A JP2143390 A JP 2143390A JP H03224734 A JPH03224734 A JP H03224734A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- vinyl chloride
- chloride resin
- outer layer
- layer
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 79
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000011347 resin Substances 0.000 claims abstract description 39
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 6
- 239000004014 plasticizer Substances 0.000 abstract description 13
- 229920002635 polyurethane Polymers 0.000 abstract description 11
- 239000004814 polyurethane Substances 0.000 abstract description 11
- 238000000465 moulding Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- 238000005187 foaming Methods 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000000049 pigment Substances 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 53
- 239000006260 foam Substances 0.000 description 26
- 229920005830 Polyurethane Foam Polymers 0.000 description 12
- 239000011496 polyurethane foam Substances 0.000 description 12
- 150000001412 amines Chemical class 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 230000005012 migration Effects 0.000 description 5
- 238000013508 migration Methods 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000021189 garnishes Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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）
この発明は、自動車用インストルメントパネル、コンソ
ールボックス、ピラーガーニッシュ等のような発泡製品
の表皮材に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to a skin material for foamed products such as automobile instrument panels, console boxes, pillar garnishes, and the like.
（従来技術）
前記発泡製品は、第４図の部分断面図に示すようにポリ
ウレタンフォーム等からなる発泡体１０と、その表面を
覆う表皮材１２、さらには必要に応じて発泡体１０内ま
たは発泡体１０底面に設けられる基材（図示せず）とか
ら構成される。(Prior Art) As shown in the partial cross-sectional view of FIG. 4, the foamed product includes a foamed body 10 made of polyurethane foam or the like, a skin material 12 covering the surface of the foamed body 10, and, if necessary, a foamed body 10 or a foamed body. It is composed of a base material (not shown) provided on the bottom surface of the body 10.
ところで前記表皮材１２としては、ファブリックからな
るもの、あるいは塩化ビニル樹脂からなるもの等があり
、その中でも塩化ビニル樹脂からなる表皮材は、所定形
状に行形するのが容易であり、しかもその表皮材内面に
液状発泡原料を注入して表皮材と一体に発泡体を成形（
表皮一体成形）できる利点があるため、従来から特に多
用されている。By the way, the skin material 12 may be made of fabric or made of vinyl chloride resin. Among these, the skin material made of vinyl chloride resin is easy to shape into a predetermined shape, and the skin material Liquid foaming material is injected into the inner surface of the material and the foam is formed integrally with the skin material (
It has been particularly frequently used since it has the advantage of being able to be integrally molded with the skin.
また、その塩化ビニル樹脂からなる表皮材には、非発泡
層からなる一層構造のもの、あるいはソフト感をより高
めるために非発泡層の内側に発泡層を積層した二層構造
のものとがある。In addition, the skin material made of vinyl chloride resin has a single layer structure consisting of a non-foamed layer, or a two-layer structure consisting of a foam layer laminated inside the non-foam layer to further enhance the soft feel. .
ところが、前記塩化ビニル樹脂からなる表皮材は、−層
、二層のいずれからなる場合であっても、該表皮材の柔
軟性を高めるために塩化ビニル樹脂に多量の可塑剤が配
合されている。そのため、時間の経過とともに、表皮材
内面と接する発泡体１２側に可塑剤が移行し、その可塑
剤の移行により塩化ビニル樹脂製表皮材の硬化（柔軟性
の喪失）を生じていた。However, whether the skin material made of vinyl chloride resin has one layer or two layers, a large amount of plasticizer is blended into the vinyl chloride resin in order to increase the flexibility of the skin material. . Therefore, over time, the plasticizer migrates to the side of the foam 12 that is in contact with the inner surface of the skin material, and the migration of the plasticizer causes hardening (loss of flexibility) of the vinyl chloride resin skin material.
また、塩化ビニル樹脂製表皮材の被着される発泡体１２
がポリウレタン発泡体からなる場合には、そのポリウレ
タン発泡原料に加えられているアミン触媒が塩化ビニル
樹脂製表皮材に移行し、それにより該表皮材内の可塑剤
が発泡体１２へ移行するのを促進させ、塩化ビニル樹脂
製表皮材の耐熱性を低下（塩化ビニル樹脂の熱劣化を促
進）させる結果となっていた。In addition, a foam body 12 to which a vinyl chloride resin skin material is attached
is made of polyurethane foam, the amine catalyst added to the polyurethane foam raw material is transferred to the vinyl chloride resin skin material, thereby preventing the plasticizer in the skin material from migrating to the foam 12. This resulted in a decrease in the heat resistance of the vinyl chloride resin skin material (promoting thermal deterioration of the vinyl chloride resin).
さらに、塩化ビニル樹脂とポリウレタン発泡体とは接着
性が良好ではないために、表皮一体成形により得られた
発泡製品において、その圧縮時等の際に表皮材が発泡体
から剥離して浮き上がり、表皮材に皺を生じ易い問題も
あった。Furthermore, since vinyl chloride resin and polyurethane foam do not have good adhesion, in foamed products obtained by skin-integrated molding, the skin material peels off from the foam and rises when compressed, etc. There was also the problem that the wood was prone to wrinkles.
なお、外層を非発泡層、内層を発泡層とする二層からな
る塩化ビニル樹脂製表皮材にあっては、その発泡層表面
（表皮材内面）が発泡により凹凸形状になるため、物理
的保合により該表皮材と発泡体の接着があたかも良好の
ように見えるが、真に接着しているのではないため、表
皮材が発泡体から剥がれ易いのには変わりなかった。In addition, in the case of a vinyl chloride resin skin material consisting of two layers, the outer layer being a non-foamed layer and the inner layer being a foamed layer, the surface of the foam layer (inner surface of the skin material) becomes uneven due to foaming, so physical protection is difficult. Although the adhesion between the skin material and the foam appeared to be good depending on the case, the skin material still easily peeled off from the foam because they were not truly adhered.
（発明が解決しようとする課題）
そこでこの発明は、前記の点に鑑み、塩化ビニル樹脂製
表皮材における可塑剤の移行を押さえて、該表皮材の物
性劣化を生じにくくするとともに、表皮材の被着される
発泡体と該表皮材との接着性を高めることを目的とする
。(Problems to be Solved by the Invention) Therefore, in view of the above-mentioned points, the present invention suppresses the migration of plasticizer in the skin material made of vinyl chloride resin, makes it difficult to cause deterioration of the physical properties of the skin material, and makes it difficult for the skin material to deteriorate. The purpose is to improve the adhesion between the foam to be applied and the skin material.
（課題を解決するための手段）
上記目的を達成するため、この発明は、熱可塑性ポリウ
レタンと塩化ビニルの共重合体からなる内層に、塩化ビ
ニル樹脂からなる外層を積層して発泡製品の表皮材を構
成したのである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a skin material for foamed products by laminating an outer layer made of vinyl chloride resin on an inner layer made of a copolymer of thermoplastic polyurethane and vinyl chloride. was constructed.
（作用）
表皮材は、外層が塩化ビニル樹脂からなり、内層がポリ
ウレタンと塩化ビニルとの共重合体からなるため、発泡
体表面に被着された際に、塩化ビニル樹脂からなる外層
と表皮材内側の発泡体との間に、熱可塑性ポリウレタン
と塩化ビニルの共重合体からなる内層が介在することに
なる。 そのため、表皮材外層の塩化ビニル樹脂に配合
されている可塑剤が、熱可塑性ポリウレタンと塩化ビニ
ル樹脂の共重合体からなる表皮材内層に遮られて、表皮
材内側の発泡体へ移行しにくくなる。一方ボリウレタン
発泡体のアミン触媒も、表皮材内層により遮られて表皮
材外層へ移行しにくくなり、そのアミン触媒の移行によ
り引き起こされる表皮材外層から発泡体への可塑剤の移
行が押さえられることになる。(Function) Since the outer layer of the skin material is made of vinyl chloride resin and the inner layer is made of a copolymer of polyurethane and vinyl chloride, when it is applied to the surface of the foam, the outer layer made of vinyl chloride resin and the skin material An inner layer made of a copolymer of thermoplastic polyurethane and vinyl chloride is interposed between the inner foam and the inner foam. Therefore, the plasticizer contained in the vinyl chloride resin in the outer layer of the skin material is blocked by the inner layer of the skin material, which is made of a copolymer of thermoplastic polyurethane and vinyl chloride resin, and becomes difficult to migrate to the foam inside the skin material. . On the other hand, the amine catalyst of the polyurethane foam is also blocked by the inner layer of the skin material, making it difficult to migrate to the outer layer of the skin material, and the migration of plasticizer from the outer skin layer to the foam caused by the migration of the amine catalyst is suppressed. become.
その結果、塩化ビニル樹脂からなる表皮材外層から表皮
材内側の発泡体への可塑剤の移行が効率よく押さえられ
、表皮材の物性低下が生じにくくなる。As a result, the transfer of plasticizer from the outer layer of the skin material made of vinyl chloride resin to the foam inside the skin material is efficiently suppressed, making it difficult for the physical properties of the skin material to deteriorate.
またその表皮材内層は、ポリウレタンと塩化ビニルの共
重合体からなるため、ポリウレタンと塩化ビニルの両性
質を有し、塩化ビニル樹脂にもポリウレタン発泡体にも
良好な接着性を示す、そのため、表皮材は外層と内層の
接着が強固になるとともに、表皮材内側に表皮一体成形
されるポリウレタン発泡体と表皮材内層との接着性も高
いものとなる。In addition, the inner layer of the skin material is made of a copolymer of polyurethane and vinyl chloride, so it has the properties of both polyurethane and vinyl chloride, and exhibits good adhesion to both vinyl chloride resin and polyurethane foam. The material has strong adhesion between the outer layer and the inner layer, and also has high adhesiveness between the polyurethane foam integrally molded inside the skin material and the inner layer of the skin material.
その結果該表皮材は、表皮一体成形されるポリウレタン
発泡体の表面に強固に接着されることになり、表皮材が
発泡体から浮き上がって皺を生じることがなくなる。As a result, the skin material is firmly adhered to the surface of the polyurethane foam that is integrally molded with the skin, and the skin material does not lift up from the foam and cause wrinkles.
（実施例） 以下この発明の実施例について説明する。(Example) Examples of the present invention will be described below.
第１図は、この発明の一実施例に係る発泡製品の表皮材
の断面図である。FIG. 1 is a sectional view of a skin material of a foamed product according to an embodiment of the present invention.
その表皮材２０は、外層２２と内層２４が積層一体止し
た二層構造からなる。The skin material 20 has a two-layer structure in which an outer layer 22 and an inner layer 24 are laminated and fixed together.
外層２２は、可塑剤、安定剤、顔料等が塩化ビニル樹脂
に配合された軟質塩化ビニル樹脂からなり、厚みが通常
０．５〜２．０ｍ程度のものからなる。The outer layer 22 is made of a soft vinyl chloride resin containing a plasticizer, a stabilizer, a pigment, etc., and has a thickness of usually about 0.5 to 2.0 m.
一方向層２４は、ポリウレタンと塩化ビニル樹脂の共重
合体からなり、厚みが通常０．１〜０．５■程度のもの
である。そのポリウレタンと塩化ビニル樹脂との共重合
体としては、種々のものを使用し得るが、−例として、
１．６−へキサメチレンジイソシアネート３５ｇ （Ｎ
Ｇ Ｏ／ ＯＨ＝ １．６７）と平均分子量２０００
のポリエステルポリオールＮｌＰＰ０ＬＬＡＮ ４０
１０（日本ポリウレタン工業（株）製）２５０ｇ、平均
重合度１３００の塩化ビニル樹脂粉末５００ｇ、ステア
リン酸カルシウム５ｇ＝ステアリン酸亜鉛５ｇとから形
成された共重合体を挙げることができる。The unidirectional layer 24 is made of a copolymer of polyurethane and vinyl chloride resin, and usually has a thickness of about 0.1 to 0.5 square centimeters. Various copolymers of polyurethane and vinyl chloride resin can be used; for example,
1.6-hexamethylene diisocyanate 35g (N
G O/OH = 1.67) and average molecular weight 2000
Polyester polyol NlPP0LLAN 40
10 (manufactured by Nippon Polyurethane Industry Co., Ltd.), 500 g of vinyl chloride resin powder with an average degree of polymerization of 1300, and a copolymer formed from 5 g of calcium stearate = 5 g of zinc stearate.
前記表皮材２０の外層２２と内層２４は、スラッシュ成
形により次のようにして一体に形成される。The outer layer 22 and inner layer 24 of the skin material 20 are integrally formed by slush molding in the following manner.
まず、スラッシュ成形型に塩化ビニル樹脂パウダーある
いはゾルを投入して、型面に塩化ビニル樹脂からなる外
層を通常のスラッシュ成形により形成する０次いで、前
記ポリウレタンと塩化ビニル樹脂の共重合体に安定剤を
添加して粒径０．１２〜０．１８ｐｍとしたパウダーを
、前記の塩化ビニル樹脂からなる外層の内面に投入して
、外層と一体に内層をスラッシュ成形する。その後成形
品をスラッシュ成形型から取り出せば、表皮材２０が得
られる。First, a vinyl chloride resin powder or sol is put into a slush mold, and an outer layer made of vinyl chloride resin is formed on the mold surface by normal slush molding.Next, a stabilizer is added to the copolymer of polyurethane and vinyl chloride resin. A powder having a particle size of 0.12 to 0.18 pm is added to the inner surface of the outer layer made of the vinyl chloride resin, and the inner layer is slush molded together with the outer layer. If the molded product is then taken out from the slush mold, the skin material 20 will be obtained.
このようにしてなる表皮材２０は、第２図に示すように
、表皮材内層２４を内側として成形型２６のキャビティ
に装置され、その表皮材内層２４上にポリウレタン発泡
原料２８が注入されて、表皮材２０と一体に発泡成形さ
れることにより、発泡体表面に被着される。As shown in FIG. 2, the skin material 20 thus formed is installed in the cavity of a mold 26 with the skin inner layer 24 inside, and the polyurethane foaming raw material 28 is injected onto the skin material inner layer 24. By being foam-molded integrally with the skin material 20, it is adhered to the surface of the foam.
第３図は、その表皮一体成形により、発泡体３０表面に
表皮材２０が被着されてなる発泡製品３２の断面図であ
る。その発泡製品３２は、前記ポリウレタン発泡原料２
８の自己接着力により表皮材２０と発泡体３０が強固に
接着している。FIG. 3 is a sectional view of a foamed product 32 in which a skin material 20 is adhered to the surface of a foamed body 30 by integral molding of the skin. The foam product 32 comprises the polyurethane foam raw material 2
The skin material 20 and the foam 30 are firmly adhered by the self-adhesive force of No. 8.
（効果）
この発明による発泡製品の表皮材は、熱可塑性ポリウレ
タンと塩化ビニル樹脂の共重合体からなる内層と、塩化
ビニル樹脂からなる外層との二層構造からなる。そのた
め、該表皮材が発泡体に被着された際、外層を構成する
塩化ビニル樹脂に配合されている可塑剤が、表皮材内側
の発泡体に移行するのを表皮材内層によって押さえるこ
とができたのである。また、表皮材の被着される発泡体
がポリウレタン発泡体である場合には、そのポリウレタ
ン発泡体に含まれるアミン触媒が、表皮材外層へ移行す
るのを前記表皮材内層により押さえることができ、その
アミン触媒の移行により生じる前記表皮材からの可塑剤
の移行も防ぐことができたのである。その結果、該可塑
剤の移行により生じていた表皮材の物性低下を良好に防
ぐことができなのである。(Effects) The skin material of the foam product according to the present invention has a two-layer structure including an inner layer made of a copolymer of thermoplastic polyurethane and vinyl chloride resin, and an outer layer made of vinyl chloride resin. Therefore, when the skin material is attached to a foam, the inner layer of the skin material can prevent the plasticizer contained in the vinyl chloride resin that makes up the outer layer from migrating to the foam inside the skin material. It was. In addition, when the foam to which the skin material is attached is a polyurethane foam, the amine catalyst contained in the polyurethane foam can be prevented from migrating to the outer layer of the skin material by the inner layer of the skin material, It was also possible to prevent the transfer of plasticizer from the skin material, which occurs due to the transfer of the amine catalyst. As a result, it is possible to effectively prevent the physical properties of the skin material from deteriorating due to migration of the plasticizer.
またこの発明の表皮材は、内層が前記構成からなるため
、その内層と塩化ビニル樹脂からなる外層との接着性お
よび表皮材が被着されるポリウレタン発泡体と表皮材内
層との接着性が良好になり、内層と外層および表皮材と
発泡体との剥離を防ぐことができ、表皮材の浮き上がり
による皺を生じにくくできたのである。In addition, since the skin material of the present invention has the inner layer having the above-described structure, the adhesiveness between the inner layer and the outer layer made of vinyl chloride resin and the adhesiveness between the polyurethane foam to which the skin material is adhered and the inner layer of the skin material are good. This made it possible to prevent the inner and outer layers and the skin material from peeling off from the foam, making it less likely that wrinkles would occur due to lifting of the skin material.
第１図はこの発明の一実施例に係る発泡製品の表皮材の
断面図、第２図はその表皮材を用いて行う表皮一体成形
時を示す断面図、第３図はその表皮を被着した発泡製品
の断面図、第４図は従来の表皮材を被着した発泡製品の
部分断面図である。Figure 1 is a cross-sectional view of the skin material of a foamed product according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the skin integrally molded using the skin material, and Figure 3 is a cross-sectional view of the skin material when the skin is integrally molded. FIG. 4 is a partial sectional view of a foamed product coated with a conventional skin material.
Claims (1)
る内層に、塩化ビニル樹脂からなる外層が積層されてな
る発泡製品の表皮材。A skin material for foamed products that consists of an inner layer made of a copolymer of thermoplastic polyurethane and vinyl chloride, and an outer layer made of vinyl chloride resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2143390A JP2933966B2 (en) | 1990-01-31 | 1990-01-31 | Skin material for foam products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2143390A JP2933966B2 (en) | 1990-01-31 | 1990-01-31 | Skin material for foam products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03224734A true JPH03224734A (en) | 1991-10-03 |
| JP2933966B2 JP2933966B2 (en) | 1999-08-16 |
Family
ID=12054849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2143390A Expired - Lifetime JP2933966B2 (en) | 1990-01-31 | 1990-01-31 | Skin material for foam products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2933966B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807751B (en) * | 2012-08-22 | 2014-07-23 | 上海吉龙塑胶制品有限公司 | Thermoplastic polyurethane (TPU) and polyvinyl chloride (PVC) blended rolling film and preparation method thereof |
-
1990
- 1990-01-31 JP JP2143390A patent/JP2933966B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2933966B2 (en) | 1999-08-16 |
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