JPH0242050B2 - - Google Patents
Info
- Publication number
- JPH0242050B2 JPH0242050B2 JP57174792A JP17479282A JPH0242050B2 JP H0242050 B2 JPH0242050 B2 JP H0242050B2 JP 57174792 A JP57174792 A JP 57174792A JP 17479282 A JP17479282 A JP 17479282A JP H0242050 B2 JPH0242050 B2 JP H0242050B2
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl chloride
- chloride sheet
- color
- colored
- sheet
- 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 - Lifetime
Links
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 50
- 239000004800 polyvinyl chloride Substances 0.000 claims description 50
- 239000011347 resin Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000003086 colorant Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 7
- 239000006260 foam Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
- B29C51/422—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、表面側が二色或いはそれ以上の異色
な色彩に彩色されたポリ塩化ビニルシートから所
望な立体形状の樹脂成形品を製造するのに適用さ
れるポリ塩化ビニルシートの賦形方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to manufacturing a resin molded product in a desired three-dimensional shape from a polyvinyl chloride sheet whose surface side is colored in two or more different colors. The present invention relates to a method for shaping polyvinyl chloride sheets.
従来の技術
従来、例えば車輛用シートの表皮材等を製造す
るにあたつてはポリエチレンフオーム、ポリプロ
ピレンフオームなどのオレフイン系フオームを複
合した樹脂シートが用いられている。然し、この
樹脂シートは立体形に深絞り成形するのに伴つて
フオーム切れが生じやすいところから立体形状の
深いものの賦形に適さない。BACKGROUND ART Conventionally, for example, in manufacturing skin materials for vehicle seats, resin sheets made of composites of olefin foams such as polyethylene foam and polypropylene foam have been used. However, this resin sheet is not suitable for forming deep three-dimensional shapes because it tends to break in the form when it is deep-drawn into three-dimensional shapes.
これに対し、深絞り成形に伴つてもフオーム切
れを生じない樹脂シートとしてはポリ塩化ビニル
シートが知られている。 On the other hand, polyvinyl chloride sheets are known as resin sheets that do not cause foam breakage even when subjected to deep drawing.
発明が解決しようとする課題
然し、ポリ塩化ビニルシートは表面側に彩色さ
れる二色或いはそ以上の色彩に応じて熱吸収率を
異にするところから、成形品が部分部分で異形に
変形してしまうことを避け得ない。その色違いに
よるバラ付きは、第１図に応力、歪みの相関関係
で表す黒色（曲線ａ），灰色（曲線ｂ），赤色（曲
線ｃ）の各色彩に応じた成形時の応力―歪曲線に
照しても生ずることが判る。Problems to be Solved by the Invention However, since polyvinyl chloride sheets have different heat absorption rates depending on the two or more colors painted on the surface side, the molded product may deform into irregular shapes in some parts. It is unavoidable that it will happen. Figure 1 shows the stress-strain curves during molding for each color: black (curve a), gray (curve b), and red (curve c), which shows the correlation between stress and strain. It can be seen that this occurs even when compared to .
このため、表面側を二色或いはそれ以上に彩色
したポリ塩化ビニルシートは加熱軟化後に所望の
立体形状に成形する樹脂成形品を製造するには用
いることができない。 For this reason, a polyvinyl chloride sheet whose surface side is colored two or more colors cannot be used to manufacture a resin molded article that is molded into a desired three-dimensional shape after being heated and softened.
茲において、本発明は、表面側を二色或いはそ
れ以上の異色な色彩に彩色されたポリ塩化ビニル
シートでも所望の立体形状の加熱成形できるよう
改良したポリ塩化ビニルシートの賦形方法を提供
することを目的とする。 Furthermore, the present invention provides an improved method for forming a polyvinyl chloride sheet so that even a polyvinyl chloride sheet whose surface side is colored in two or more different colors can be heated and formed into a desired three-dimensional shape. The purpose is to
課題を解決するための手段
本発明に係るポリ塩化ビニルシートの賦形方法
においては、表面側が二色或いはそれ以上の異色
な色彩に彩色されたポリ塩化ビニルシートを用
い、そのポリ塩化ビニルシートから所望な立体形
状の樹脂成形品を製造するべく、このポリ塩化ビ
ニルシートの裏面側を表面側の各色彩に対して成
形時の応力―歪曲線で中間色となる色彩に帯色さ
せ、その裏面側の色彩に対応する条件でポリ塩化
ビニルシートを加熱軟化させて所望の立体形状に
賦形成形することにより樹脂成形品を製造するよ
うにされている。Means for Solving the Problems In the method for forming a polyvinyl chloride sheet according to the present invention, a polyvinyl chloride sheet whose surface side is colored in two or more different colors is used, and the polyvinyl chloride sheet is In order to manufacture a resin molded product with a desired three-dimensional shape, the back side of this polyvinyl chloride sheet is colored in a color that is intermediate in the stress-strain curve during molding with respect to each color on the front side, and the back side A resin molded article is manufactured by heating and softening a polyvinyl chloride sheet under conditions corresponding to the color of the polyvinyl chloride sheet and forming it into a desired three-dimensional shape.
作 用
このポリ塩化ビニルシートの賦形方法では、ポ
リ塩化ビニルシートの表面側に彩色された二色或
いはそれ以上の各色彩に対して成形時の応力―歪
曲線で中間色となる色彩を決め、その色彩でポリ
塩化ビニルシートの裏面側を帯色すれば、裏面側
の色彩に応じた加熱成形条件でポリ塩化ビニルシ
ートを加工処理できるから、表面側が二色或いは
それ以上の異色に彩色されたポリ塩化ビニルシー
トでも所望の立体形状を有する樹脂成形品として
製造できるようになる。Function: In this polyvinyl chloride sheet shaping method, for each of the two or more colors painted on the surface side of the polyvinyl chloride sheet, an intermediate color is determined based on the stress-strain curve during molding. If the back side of the polyvinyl chloride sheet is colored with that color, the polyvinyl chloride sheet can be processed under heat forming conditions that match the color of the back side, so the front side can be colored in two or more different colors. Even a polyvinyl chloride sheet can be manufactured as a resin molded article having a desired three-dimensional shape.
実施例
このポリ塩化ビニルシートの賦形方法は車輛用
シートの表皮材等の立体形状を有する樹脂成形品
を製造するのに適用できるものであり、その基材
となるポリ塩化ビニルシートには異色，灰色，白
色，赤色等の異色な二色或いはそれ以上の色彩に
彩色したものが用いられる。この彩色のうち、ポ
リ塩化ビニル樹脂自体が持つ色彩を部分的に呈出
させてもよく、それ以外の異色な各色彩は異色な
塗料で部分表面に塗布することにより彩色でき
る。また、ポリ塩化ビニル樹脂自体が持つ色彩以
外の全く別色に彩色するときには各種色の無機ま
たは有機顔料や染料を添加したポリ塩化ビニル樹
脂で基材となるポリ塩化ビニルシートを成形した
後異色な塗料を部分表面に塗布することにより彩
色することができる。Example This polyvinyl chloride sheet shaping method can be applied to the production of resin molded products with three-dimensional shapes such as the skin material of vehicle seats, and the polyvinyl chloride sheet that is the base material is unique. , colored in two or more unique colors such as gray, white, red, etc. are used. Among these colors, the color possessed by the polyvinyl chloride resin itself may be partially exhibited, and other unique colors can be colored by applying different colors of paint to the partial surface. In addition, when painting a completely different color other than the color of the polyvinyl chloride resin itself, it is necessary to mold a polyvinyl chloride sheet as a base material with polyvinyl chloride resin to which inorganic or organic pigments or dyes of various colors are added, and then create a unique color. Coloring can be done by applying paint to the surface of the part.
このポリ塩化ビニルシートには、表面側の各色
彩に対して成形時の応力―歪曲線で中間色となる
色彩で裏面側を帯色する。その彩色としては、例
えば赤，黒の二色に表面側が彩色されたポリ塩化
ビニルシートを用いる場合、成形時の応力―歪曲
線で中間色となる灰色に帯色すればよい。この帯
色にあたつては中間色を有するポリ塩化ビニルシ
ートや他の樹脂シートを裏当て材として基材とな
るポリ塩化ビニルシートにラミネートし、また、
中間色を有する塗料を各裏面側に塗布する手段を
取ることができる。その帯色手段のうち、シート
材のラミネートを適用する場合には基材となるポ
リ塩化ビニルシート、裏当て材共に0.3mm程度の
厚みを有するものを用いるのが最も好しい。唯、
0.1mm以上の厚みのものであれば適宜用いるよう
にでき、また、基材となるポリ塩化ビニルシート
の有する色彩によつては0.1mm以下の厚みを有す
るものでも用いることができる。 This polyvinyl chloride sheet is colored on the back side with a color that is intermediate in the stress-strain curve during molding with respect to each color on the front side. For example, when using a polyvinyl chloride sheet whose surface side is colored in two colors, red and black, it may be colored in gray, which is an intermediate color in the stress-strain curve during molding. For this band color, a polyvinyl chloride sheet or other resin sheet having a neutral color is laminated to the base polyvinyl chloride sheet as a backing material, and
It is possible to apply a paint having a neutral color to each back side. Among the color banding means, when a laminate of sheet materials is applied, it is most preferable to use a polyvinyl chloride sheet serving as a base material and a backing material having a thickness of about 0.3 mm. Yui,
Any material having a thickness of 0.1 mm or more can be used, and depending on the color of the polyvinyl chloride sheet serving as the base material, a material having a thickness of 0.1 mm or less can also be used.
このポリ塩化ビニルシートを用いては、裏面側
の色彩に応じた成形時の応力―歪曲線を呈する条
件で加熱成形処理を施すことにより所望の立体形
状を有する樹脂成形品として製造することができ
る。その製造にあたつてはポリ塩化ビニルシート
を加熱軟化した後、金型のキヤビテイ面に吸引圧
接する真空成形を適用するようにできる。このと
きの加熱成形条件としては裏面側を灰色に帯色し
た場合で、加熱温度100〜200℃，加熱時間５〜
20min，真空圧500〜760Hg／cm2程度に設定すれ
ばよい。この加熱成形条件で加工処理すれば、表
面側が二色或いはそれ以上に彩色されたポリ塩化
ビニルシートでもフオーム切れが生ずることな
く、所望の立体形状を有する樹脂成形品として製
造できる。 Using this polyvinyl chloride sheet, it is possible to produce a resin molded product with a desired three-dimensional shape by subjecting it to heat molding under conditions that provide a stress-strain curve during molding that corresponds to the color of the back side. . In its manufacture, vacuum forming can be applied, in which the polyvinyl chloride sheet is softened by heating and then brought into suction pressure contact with the cavity surface of a mold. The heating molding conditions at this time are that the back side is colored gray, the heating temperature is 100 to 200℃, and the heating time is 5 to 200℃.
It is sufficient to set the vacuum pressure to about 500 to 760 Hg/cm 2 for 20 min. When processed under these hot forming conditions, even a polyvinyl chloride sheet whose surface side is colored in two or more colors can be produced as a resin molded article having a desired three-dimensional shape without causing any breakage of the form.
因みに、次の条件で車輌用シートの表皮材をポ
リ塩化ビニルシートから製造するのに適用した。 Incidentally, the following conditions were applied to manufacturing the skin material of a vehicle seat from a polyvinyl chloride sheet.
(1) ポリ塩化ビニルシート
ａ 表面色：黒，灰，赤
ｂ シート総厚み：0.6mm
ｃ 裏面色：
カーボン・チタンイエロー・チタンホワイ
ト・弁柄0.6Kg／cm2を添加した灰色のポリ塩
化ビニルシートを裏当て材とし、基材となる
ポリ塩化ビニルシートの裏面側にラミネー
ト。(1) Polyvinyl chloride sheet a Surface color: black, gray, red b Total sheet thickness: 0.6mm c Backside color: Gray polyvinyl chloride added with carbon, titanium yellow, titanium white, and Bengara 0.6Kg/cm 2 The sheet is used as a backing material and is laminated on the back side of the PVC sheet that serves as the base material.
(2) 加工条件
ａ 加熱温度：150℃
ｂ 加熱時間：5min
ｃ 金型に対する吸着真空度：600〜760mmHg
この加熱成形条件で黒，灰，赤色と夫々別の色
彩を有すポリ塩化ビニルシートを加工処理した結
果、第２図で示す成形時の応力―歪曲線の通りポ
リ塩化ビニルシートの黒a′，灰b′，赤c′に彩色さ
れた各部分で略近似した成形時の応力―歪曲線を
呈するところからポリ塩化ビニルシートを所望の
立体形状に成形できて良好な品質に製造できるこ
とが判明した。(2) Processing conditions a. Heating temperature: 150℃ b. Heating time: 5 min. As a result of the processing, the stress during forming shown in Figure 2 - the stress during forming approximated by the parts colored black a', gray b', and red c' of the polyvinyl chloride sheet as shown in the strain curve. It has been found that the polyvinyl chloride sheet can be molded into a desired three-dimensional shape and manufactured with good quality since it exhibits a strain curve.
なお、上述した成形手段としては真空成形を挙
げたが、これ以外にプレス成形を適用することも
できる。また、基材となるポリ塩化ビニルシート
の色が黒や赤以外であるときには各色彩に対して
成形時の応力―歪曲線で中間色になる色彩に裏面
側を夫々帯色すればよい。 In addition, although vacuum forming was mentioned as the above-mentioned forming means, press forming can also be applied in addition to this. Further, when the color of the polyvinyl chloride sheet serving as the base material is other than black or red, the back side may be colored in a color that is intermediate in the stress-strain curve during molding for each color.
発明の効果
以上の如く、本発明に係るポリ塩化ビニルシー
トの賦形方法に依れば、表面側が二色或いはそれ
以上色彩に彩色されたポリ塩化ビニルシートであ
つても、品質にバラ付きのない良質な樹脂成形品
を製造することを可能にするものである。Effects of the Invention As described above, according to the method for forming a polyvinyl chloride sheet according to the present invention, even if the surface side of the polyvinyl chloride sheet is colored in two or more colors, the quality may vary. This makes it possible to manufacture high-quality resin molded products.
第１図はポリ塩化ビニルシートの各色彩に応じ
た成形時の応力―歪曲線を示すグラフ、第２図は
本発明に係る方法で賦形処理した樹脂成形品の成
形時の応力―歪曲線を示すグラフである。
Figure 1 is a graph showing stress-strain curves during molding according to each color of polyvinyl chloride sheet, and Figure 2 is a stress-strain curve during molding of resin molded products shaped by the method according to the present invention. This is a graph showing.
Claims (1)
彩色されたポリ塩化ビニルシートを用い、そのポ
リ塩化ビニルシートから所望な立体形状の樹脂成
形品を製造するべく、このポリ塩化ビニルシート
の裏面側を表面側の各色彩に対して成形時の応力
―歪曲線で中間色となる色彩に帯色させ、その裏
面側の色彩に対応する条件でポリ塩化ビニルシー
トを加熱軟化させて所望の立体形状に賦形成形す
るようにしたことを特徴とするポリ塩化ビニルシ
ートの賦形方法。1. Using a polyvinyl chloride sheet whose front side is colored in two or more different colors, in order to manufacture a resin molded product with a desired three-dimensional shape from the polyvinyl chloride sheet, the back side of this polyvinyl chloride sheet is For each color on the front side, the polyvinyl chloride sheet is colored to a neutral color according to the stress-strain curve during molding, and the polyvinyl chloride sheet is heated and softened under conditions corresponding to the color on the back side to form the desired three-dimensional shape. A method for forming a polyvinyl chloride sheet, the method comprising forming a polyvinyl chloride sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479282A JPS5964319A (en) | 1982-10-05 | 1982-10-05 | Shaping of polyvinyl chloride sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479282A JPS5964319A (en) | 1982-10-05 | 1982-10-05 | Shaping of polyvinyl chloride sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5964319A JPS5964319A (en) | 1984-04-12 |
| JPH0242050B2 true JPH0242050B2 (en) | 1990-09-20 |
Family
ID=15984746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17479282A Granted JPS5964319A (en) | 1982-10-05 | 1982-10-05 | Shaping of polyvinyl chloride sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5964319A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123623A (en) * | 1982-12-29 | 1984-07-17 | Kyowa Leather Kk | Colored polyvinyl chloride sheet that can be readily shaped |
| JPH07108548B2 (en) * | 1987-02-17 | 1995-11-22 | 日本製箔株式会社 | Plastic processing method for plastic materials |
| WO2002014051A1 (en) * | 2000-08-10 | 2002-02-21 | Display Pack, Inc. | Method for thermoforming contoured products by using temperature differential |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155261A (en) * | 1978-05-30 | 1979-12-07 | Tsutomu Tanemoto | Extrusion molding of different color and quality thermoplastic resin member |
-
1982
- 1982-10-05 JP JP17479282A patent/JPS5964319A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155261A (en) * | 1978-05-30 | 1979-12-07 | Tsutomu Tanemoto | Extrusion molding of different color and quality thermoplastic resin member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5964319A (en) | 1984-04-12 |
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