JPH01192512A - Molding method of interior trimming material - Google Patents
Molding method of interior trimming materialInfo
- Publication number
- JPH01192512A JPH01192512A JP63017599A JP1759988A JPH01192512A JP H01192512 A JPH01192512 A JP H01192512A JP 63017599 A JP63017599 A JP 63017599A JP 1759988 A JP1759988 A JP 1759988A JP H01192512 A JPH01192512 A JP H01192512A
- Authority
- JP
- Japan
- Prior art keywords
- water
- foam
- urethane prepolymer
- hot
- molding tool
- 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 20
- 238000000465 moulding Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009966 trimming Methods 0.000 title abstract 2
- 239000006260 foam Substances 0.000 claims abstract description 32
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920006186 water-soluble synthetic resin Polymers 0.000 claims abstract description 15
- 239000012866 water-soluble synthetic resin Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical class NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate group Chemical group [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003673 urethanes Chemical class 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内装材の成形方法に関し、更に詳細に説明する
と、連続気泡を有するフオームの表面及びまたは裏面に
補強シートを積層し、加熱プレス成形する内装材の成形
方法に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for molding interior materials, and more specifically, a reinforcing sheet is laminated on the front and/or back surface of a foam having open cells, and hot press molding is performed. The present invention relates to a method for molding an interior material.
従来より、車両等の成形天井、成形ドアトリム等に発泡
ウレタンフオーム等を基材として用いるものが存在する
。例えば、特公昭６１−５１５４４号公報には、フオー
ムにイソシアネート類を含浸し、該イソシアネートａを
水蒸気で反応硬化させる含浸フオーム構造体が示されて
いる。また含浸フオームをイソシアネート類を含浸した
不織布等からなる表面材でサンドインチした構造が示さ
れている。BACKGROUND ART Conventionally, there have been molded ceilings, molded door trims, etc. of vehicles using urethane foam as a base material. For example, Japanese Patent Publication No. 61-51544 discloses an impregnated foam structure in which a foam is impregnated with isocyanates and the isocyanate a is cured by reaction with water vapor. Also shown is a structure in which an impregnated foam is sandwiched between a surface material made of a nonwoven fabric or the like impregnated with isocyanates.
然し乍ら、従来の含浸フオームの成形体を製造する場合
には成形型の上型または下型の一方またはその両方に水
蒸気穴を形成し、この水蒸気穴より水蒸気あるいは湿気
を含んだ熱風を送り込み、インシアネート基を水と反応
させて高分子化させなければならず、成形型の構造が複
雑となり、装置が大型化すると共に、製造効率を向上さ
せることが出来ず、経済性に問題を有していた。However, when manufacturing a conventional impregnated foam molded article, a steam hole is formed in one or both of the upper mold and the lower mold, and steam or hot air containing moisture is sent through the steam hole to inject the impregnated foam. The cyanate group must be made into a polymer by reacting with water, which complicates the structure of the mold, increases the size of the equipment, and makes it impossible to improve production efficiency, resulting in economic problems. Ta.
本発明の目的は、イソシアネート類を含むウレタンプレ
ポリマーを湿式硬化設備を設けた成形型を用いることな
く反応硬化させることが出来、成形型の構造を複雑にす
る必要がなく、装置を大型化する虞れもなく、製造効率
を向上させ、経済性に優れた内装材の成形方法を提供す
るものである。An object of the present invention is to be able to reaction-cure urethane prepolymers containing isocyanates without using a mold equipped with wet curing equipment, to eliminate the need to complicate the structure of the mold, and to increase the size of the equipment. The present invention provides a method for molding an interior material that is safe, improves manufacturing efficiency, and is highly economical.
本発明は上述せる課題に鑑みてなされたもので、連続気
泡を有するフオームの表面及びまたは裏面に補強シート
を積層し、加熱プレス成形する内装材の成形方法におい
て、前記フオームにウレタンプレポリマーを含浸させ、
前記補強シートに水溶性合成樹脂をスプレーした後、前
記フオームに補強シートを積層し、加熱プレス成形する
ことにより、前記水溶性合成樹脂中の水とウレタンプレ
ポリマーとを反応させて硬化させることを特徴とする。The present invention has been made in view of the above-mentioned problems, and includes a method for forming an interior material in which a reinforcing sheet is laminated on the front and/or back surface of a foam having open cells, and the foam is impregnated with a urethane prepolymer. let me,
After spraying a water-soluble synthetic resin on the reinforcing sheet, the reinforcing sheet is laminated on the foam and hot press molded to cause the water in the water-soluble synthetic resin to react with the urethane prepolymer and to be cured. Features.
本発明に依れば、フオームにウレタンプレポリマーを含
浸させ、該フオームに積層される補強シートに水溶性合
成樹脂をスプレーにより塗布し、このスプレーによる塗
布後に補強シートをフオームに積層し、直ちに加熱プレ
ス成形するので、水溶性合成樹脂の水が加熱されて水蒸
気化し、この水蒸気がフオームに含浸されたウレタンプ
レポリマーのイソシアネート基と反応し、高分子化され
て硬化するので、加熱成形型に水蒸気穴を設け、この水
蒸気穴より水蒸気や湿気を含んだ熱風を送り込む必要が
ないものである。According to the present invention, a foam is impregnated with a urethane prepolymer, a water-soluble synthetic resin is applied by spraying to a reinforcing sheet laminated to the foam, and after application by spraying, the reinforcing sheet is laminated to the foam and immediately heated. Since it is press-molded, the water in the water-soluble synthetic resin is heated and turned into steam, and this steam reacts with the isocyanate groups of the urethane prepolymer impregnated into the foam, resulting in polymerization and hardening. There is no need to provide a hole and send hot air containing steam or moisture through the steam hole.
以下本発明に係る内装材の成形方法を図面を参照して詳
述する。The method for molding an interior material according to the present invention will be described in detail below with reference to the drawings.
第１図乃至第３図には本発明方法の一実施例の工程が示
されており、本実施例においては内装材として車両用成
形天井に適用した場合として説明するが、これに限定さ
れるものではない。1 to 3 show the steps of one embodiment of the method of the present invention, and in this embodiment, the case will be explained as being applied to a molded ceiling for a vehicle as an interior material, but the invention is not limited to this. It's not a thing.
第１図には成形天井基材に対応する大きさにカットされ
たスラブウレタンフオーム１が示されており、このフオ
ーム１は連続気泡を有し、この連続気泡を有するフオー
ム１がウレタンプレポリマー２溶液中に浸漬され、フオ
ーム１にウレタンプレポリマー２が含浸されている。こ
のウレタンプレポリマー２は本実施例では１００％含浸
されているが、適宜調整することが出来る。FIG. 1 shows a slab urethane foam 1 cut to a size corresponding to a molded ceiling base material, and this foam 1 has open cells, and the foam 1 having open cells is a urethane prepolymer 2. The foam 1 is immersed in a solution and impregnated with a urethane prepolymer 2. Although this urethane prepolymer 2 is 100% impregnated in this example, it can be adjusted as appropriate.
第２図には補強シート３の一実施例が示されており、こ
の補強シート３はガラス繊維シート４と不織布等からな
るポリエステルフリース５との積層品より形成されてい
る。そして、ガラス繊維シート４側が前記フオーム１に
対向されてフオーム１の表面及び裏面に積層される。尚
本実施例ではフオーム１の両面に補強シート３を積層し
たが表面または裏面の何れか一方のみ積層するものでも
よい。また表面または裏面で異なる材質とすることも出
来る。FIG. 2 shows an embodiment of the reinforcing sheet 3, which is formed from a laminate of a glass fiber sheet 4 and a polyester fleece 5 made of nonwoven fabric or the like. Then, the glass fiber sheet 4 is laminated on the front and back surfaces of the foam 1, with the glass fiber sheet 4 facing the foam 1. In this embodiment, the reinforcing sheet 3 is laminated on both sides of the foam 1, but it may be laminated only on either the front side or the back side. It is also possible to use different materials for the front and back surfaces.
この補強シート３には水溶性合成樹脂６、例えば水溶性
メラミン樹脂等の熱硬化性樹脂、または熱可塑性樹脂が
スプレーガン７よりスプレーされている。A water-soluble synthetic resin 6, for example a thermosetting resin such as a water-soluble melamine resin, or a thermoplastic resin is sprayed onto the reinforcing sheet 3 from a spray gun 7.
前記補強シート３に水溶性合成樹脂６をスプレーした後
、ウレタンプレポリマー２を含浸させたフオーム１の表
面及び裏面に積層し、第３図に示す如く、直ちに加熱成
形型１１の下型１２と上型１３との間に挿入する。After spraying the water-soluble synthetic resin 6 on the reinforcing sheet 3, it is laminated on the front and back surfaces of the foam 1 impregnated with the urethane prepolymer 2, and immediately attached to the lower mold 12 of the heating mold 11 as shown in FIG. It is inserted between the upper mold 13 and the upper mold 13.
加熱成形型１１は１２０℃〜１７０℃、好ましくは１４
０℃に加熱され、３０秒〜６０秒、好ましくは４５秒間
プレス成形され、ウレタンプレポリマーのイソシアネー
ト基と、水溶性合成樹脂中の水とを反応させ、高分子化
による硬化反応により、形状保持性を有する内装材とし
ての成形天井基材が得られる。The temperature of the heating mold 11 is 120°C to 170°C, preferably 14°C.
It is heated to 0°C and press-molded for 30 seconds to 60 seconds, preferably 45 seconds, and the isocyanate groups of the urethane prepolymer are reacted with water in the water-soluble synthetic resin, and the shape is retained by a curing reaction caused by polymerization. A molded ceiling base material as an interior material having properties is obtained.
前記ウレタンプレポリマーのイソシアネート基は水と反
応して尿素またはビウレットの誘導体を作り、補強シー
ト３とフオーム１とを強固に接合させる。The isocyanate groups of the urethane prepolymer react with water to form urea or biuret derivatives, thereby firmly bonding the reinforcing sheet 3 and the foam 1.
以上が本発明に係る内装材の成形方法の一実施例である
が、斯る方法に依れば、補強シートを構成するガラス繊
維シート及びポリエステルフリースに水溶性合成樹脂が
スプレーされて含浸され、この水溶性合成樹脂中の水が
連続気泡を有するフオームに含浸させたウレタンプレポ
リマーのイソシアネート基を反応させ、加熱プレス成形
により所望形状に接合状態でプレス成形され、且つ硬化
されるので成形型に湿式硬化設備としての水蒸気穴を設
けたり、該水蒸気穴より水蒸気や湿気を含んだ熱風等を
送り込む必要がなく、成形型の型構造が簡易で装置を大
型化させる虞れがなく、作業能率を向上出来、著しく経
済性に優れた内装材の成形方法を得ることが出来る。The above is an example of the method for molding an interior material according to the present invention. According to this method, a water-soluble synthetic resin is sprayed and impregnated into the glass fiber sheet and polyester fleece that constitute the reinforcing sheet, The water in this water-soluble synthetic resin reacts with the isocyanate groups of the urethane prepolymer impregnated into the foam having open cells, and the bonded state is press-molded into the desired shape by hot press molding. There is no need to provide a steam hole for wet curing equipment or to send hot air containing steam or moisture through the steam hole, and the structure of the mold is simple and there is no risk of increasing the size of the equipment, improving work efficiency. It is possible to obtain a method for molding interior materials that can be improved and is extremely economical.
第１図乃至第４図は本発明に係る内装材の成形方法の一
実施例の工程を夫々示すもので、第１図はウレタンプレ
ポリマーを含浸させたフオームの断面図、第２図は補強
シートに水溶性合成樹脂をスプレーしている状態の断面
図、第３図は加熱プレス成形前の断面図、第４図は加熱
プレス成形状態を示す断面図である。
図中、■・・・連続気泡を有するフオーム、２・・・ウ
レタンプレポリマー、３・・・補強シート、４・・・ガ
ラス繊維シート、５・・・ポリエステルフリース、６・
・・水溶性合成樹脂、１１・・・加熱成形型、１２・・
・下型、１３・・・上型。
第１図
第３図
第４図
ユFigures 1 to 4 show the steps of an embodiment of the interior material molding method according to the present invention. Figure 1 is a cross-sectional view of a foam impregnated with urethane prepolymer, and Figure 2 is a reinforced FIG. 3 is a cross-sectional view showing the sheet being sprayed with a water-soluble synthetic resin, FIG. 3 is a cross-sectional view before hot press molding, and FIG. 4 is a cross-sectional view showing the hot press molding state. In the figure, ■... Foam with open cells, 2... Urethane prepolymer, 3... Reinforcement sheet, 4... Glass fiber sheet, 5... Polyester fleece, 6...
...Water-soluble synthetic resin, 11...Heating mold, 12...
・Lower mold, 13...upper mold. Figure 1 Figure 3 Figure 4
Claims (1)
シートを積層し、加熱プレス成形する内装材の成形方法
において、前記フォームにウレタンプレポリマーを含浸
させ、前記補強シートに水溶性合成樹脂をスプレーした
後、前記フォームに補強シートを積層し、加熱プレス成
形することにより、前記水溶性合成樹脂中の水とウレタ
ンプレポリマーとを反応させて硬化させることを特徴と
する内装材の成形方法。In a method for forming an interior material in which a reinforcing sheet is laminated on the front and/or back side of a foam having open cells and hot press molded, the foam is impregnated with a urethane prepolymer and the reinforcing sheet is sprayed with a water-soluble synthetic resin. A method for molding an interior material, characterized in that a reinforcing sheet is laminated on the foam and hot press molded to cause the water in the water-soluble synthetic resin to react with the urethane prepolymer and to cure the foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017599A JPH0617030B2 (en) | 1988-01-28 | 1988-01-28 | Interior material molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017599A JPH0617030B2 (en) | 1988-01-28 | 1988-01-28 | Interior material molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192512A true JPH01192512A (en) | 1989-08-02 |
| JPH0617030B2 JPH0617030B2 (en) | 1994-03-09 |
Family
ID=11948349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63017599A Expired - Lifetime JPH0617030B2 (en) | 1988-01-28 | 1988-01-28 | Interior material molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617030B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131585A (en) * | 1991-11-14 | 1993-05-28 | Ikeda Bussan Co Ltd | Interior decorative material |
-
1988
- 1988-01-28 JP JP63017599A patent/JPH0617030B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131585A (en) * | 1991-11-14 | 1993-05-28 | Ikeda Bussan Co Ltd | Interior decorative material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617030B2 (en) | 1994-03-09 |
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