JPS6362369B2 - - Google Patents
Info
- Publication number
- JPS6362369B2 JPS6362369B2 JP55068845A JP6884580A JPS6362369B2 JP S6362369 B2 JPS6362369 B2 JP S6362369B2 JP 55068845 A JP55068845 A JP 55068845A JP 6884580 A JP6884580 A JP 6884580A JP S6362369 B2 JPS6362369 B2 JP S6362369B2
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- stock solution
- skin body
- pad
- skin
- 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
Links
- 238000005187 foaming Methods 0.000 claims description 28
- 239000011550 stock solution Substances 0.000 claims description 15
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 11
- 239000011496 polyurethane foam Substances 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 210000003491 skin Anatomy 0.000 description 24
- 239000004744 fabric Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は、一体発泡シートの製造方法に関する
ものである。詳しく述べると、風合いの良好なエ
ンボス模様を有する一体発泡シートの製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an integrally foamed sheet. More specifically, the present invention relates to a method for manufacturing an integrally foamed sheet having an embossed pattern with a good texture.
従来、クツシヨンシート、特に自動車、鉄道車
両、航空機等の輸送体や椅子、ソフアー等の家具
の座席用のエンボス模様を有するシートの製造方
法としては、所定のエンボスパターンを有する金
型内面に表皮体を吸引法により密着させたのち、
これにポリウレタン等の発泡原液を注入して加熱
し、前記表皮体と一体的に発泡成形する方法が知
られている。しかしながら、発泡後の縫製の点か
ら内面に(裏地として)織布、編布、不織布等の
布地を有する積層体を表皮体として使用している
現在のシートにおいては、この方法では、発泡原
液注入時に前記布地に該発泡原液が含浸されるの
で、発泡後に硬くなつて表面の感触を悪くすると
いう欠点があつた。 Conventionally, as a manufacturing method for cushion sheets, particularly sheets with embossed patterns for seats in transportation vehicles such as automobiles, railway vehicles, and aircraft, and furniture such as chairs and sofas, a skin is coated on the inner surface of a mold with a predetermined embossed pattern. After the bodies are brought into close contact using the suction method,
A method is known in which a foaming solution such as polyurethane is injected into the foam, heated, and foam-molded integrally with the skin body. However, from the point of view of sewing after foaming, in current sheets that use a laminate having a fabric such as woven fabric, knitted fabric, or non-woven fabric on the inner surface (as the lining) as the skin body, this method does not allow injection of foaming stock solution. Sometimes, the fabric is impregnated with the foaming stock solution, which has the disadvantage that it becomes hard after foaming and makes the surface feel uncomfortable.
本発明は、前記のごとき従来法の諸欠点を解消
するためになされたもので、所定の凹凸パターン
を内面に備えた成形用型内で前記パターンに予め
成形された表皮体の凹部に、該凹部のみを覆うよ
うにポリウレタンフオームパツドを載置し、つい
でこれにポリウレタン発泡原液を注入し、さらに
該発泡原液を前記表皮体およびパツドと一体的に
発泡させることを特徴とするポリウレタン一体発
泡シートの製造方法である。 The present invention was made in order to eliminate the various drawbacks of the conventional method as described above, and the present invention was made in order to eliminate the various drawbacks of the conventional method. A polyurethane integrally foamed sheet characterized by placing a polyurethane foam pad so as to cover only the concave portions, then injecting a polyurethane foaming solution into the pad, and further foaming the foaming solution integrally with the skin body and pad. This is a manufacturing method.
つぎに、図面を参照しつつ本発明の一実施例を
説明する。すなわち、第1図に示すように、製作
すべきエンボス模様に対応した凹凸パターンを内
面に備えた成形用下型1上に、表皮体2を必要に
より加熱器(図示せず)で加熱したのちに載置す
る。この表皮体2は、編布、織布、不織布等の基
布にポリ塩化ビニル、ナイロン、ポリウレタン、
ポリアミノ酸等の合成樹脂を被覆してなるレザ
ー、合成皮革等が使用される。したがつて、この
表皮体の裏面(成形用型に接する面の反対側)に
は、織布、不織布、編布等の布地(図示せず)が
積層されていることになる。 Next, one embodiment of the present invention will be described with reference to the drawings. That is, as shown in FIG. 1, a skin body 2 is placed on a lower mold 1 having an uneven pattern on its inner surface corresponding to the embossed pattern to be produced, after being heated with a heater (not shown) if necessary. Place it on. This skin body 2 is made of polyvinyl chloride, nylon, polyurethane, etc. on a base fabric such as knitted fabric, woven fabric, or nonwoven fabric.
Leather coated with synthetic resin such as polyamino acid, synthetic leather, etc. are used. Therefore, a fabric (not shown) such as a woven fabric, a nonwoven fabric, or a knitted fabric is laminated on the back surface of this skin body (the side opposite to the surface in contact with the mold).
この表皮体2は、成形用下型1上に載置された
のち、該下型1の内面に密着させてその内面と同
一のパターンに予め成形される。成形法として
は、例えば第1図に示すように、吸引流通路3に
連通した吸引装置(例えば真空ポンプ)4に連通
した多数の吸引孔5を備えてなる成形用下型1を
用い、該下型1に前記表皮体2を載置したのち、
吸引装置4を作動させると、表皮体2は吸引孔5
により吸引されるので、表皮体2は下型1の内面
に密着して下型1の内面の凹凸と同一のパターン
を形成する。 After this skin body 2 is placed on the lower mold 1, it is brought into close contact with the inner surface of the lower mold 1 and is pre-molded into the same pattern as the inner surface. As a molding method, for example, as shown in FIG. After placing the skin body 2 on the lower mold 1,
When the suction device 4 is actuated, the skin body 2 closes the suction hole 5
As a result, the skin body 2 comes into close contact with the inner surface of the lower mold 1 and forms the same pattern as the unevenness on the inner surface of the lower mold 1.
このようにして下型1に密着している表皮体2
の凹部6に、凸部7を除いてこの凹部6のみを覆
うようにポリウレタンフオームパツド8を載置す
る。この場合、該パツド8は表皮体2上に単に載
置するだけでもよいが、両者間を接着剤、粘着剤
等により全面的または部分的に接着ないし粘着さ
せることが望ましい。ポリウレタンフオームパツ
ドとしては、通常ポリウレタンフオームスラブが
使用されるが、その他のシート状物でもよい。つ
いで、下型1内に所定量のポリウレタン発泡原液
を注入すると、第2図に示すように該発泡原液は
ポリウレタンフオームスラブ8の表面にその一部
分が含浸されて含浸層9を形成するとともに液層
10を形成する。また、凸部7においては発泡原
液は表皮体2に含浸されるが、凹部6においては
表皮体2はその全面がパツド8により被覆されて
いるので、発泡原液の表皮体2への含浸は遮断さ
れる。 The skin body 2 that is in close contact with the lower mold 1 in this way
A polyurethane foam pad 8 is placed in the recess 6 so as to cover only the recess 6 excluding the projection 7. In this case, the pad 8 may simply be placed on the skin body 2, but it is desirable that the two be fully or partially adhered or adhered to each other with an adhesive, adhesive, or the like. As the polyurethane foam pad, a polyurethane foam slab is usually used, but other sheet-like materials may also be used. Next, when a predetermined amount of polyurethane foaming solution is injected into the lower mold 1, a portion of the foaming solution impregnates the surface of the polyurethane foam slab 8 to form an impregnated layer 9, as shown in FIG. form 10. Further, in the convex portions 7, the foaming stock solution is impregnated into the skin body 2, but in the concave portions 6, the entire surface of the skin body 2 is covered with the pad 8, so that impregnation of the foaming stock solution into the skin body 2 is blocked. be done.
ついで、第3図に示すように上型11を閉じて
所定の温度に加熱して発泡させると、下型1と上
型11との間に形成される空間にポリウレタンフ
オーム12が、前記パツド8と表皮体2の凸部7
と一体的に形成される。発泡硬化後は上型11を
除去し、下型1からはずすと第4〜5図に示すよ
うなエンボス模様を有する一体発泡シート13が
得られる。 Then, as shown in FIG. 3, when the upper mold 11 is closed and heated to a predetermined temperature to cause foaming, the polyurethane foam 12 is formed in the space formed between the lower mold 1 and the upper mold 11, and the pad 8 and the convex portion 7 of the skin body 2
It is formed integrally with. After the foaming is cured, the upper mold 11 is removed and removed from the lower mold 1 to obtain an integrally foamed sheet 13 having an embossed pattern as shown in FIGS. 4 and 5.
以上述べたように、本発明方法は所定の凹凸パ
ターンを内面に備えた成形用型内で前記パターン
に予め成形された表皮体の凹部に、該凹部のみを
覆うようにポリウレタンフオームパツドを載置
し、ついでこれにポリウレタン発泡原液を注入
し、さらに該発泡原液を前記表皮体およびパツド
と一体的に発泡させることによりポリウレタン一
体発泡シートを製造するものであるから、注入さ
れた発泡原液は前記凹部、すなわち製品としての
シートにおける凸部面とは前記パツドを介しての
み接触するので、発泡原液は表皮体裏面の布地層
にはこの個所では含浸されず、パツドにのみ含浸
される。したがつて、発泡原液が発泡してフオー
ムを形成したときに表皮体が硬くなることはな
く、しかもパツドの表皮体と接する部分にも発泡
原液は達しないので、製品であるシートのクツシ
ヨン風合いはなんら損なわることはない。一方、
予備成形時の表皮体の凸部は発泡原液と接触する
のでこの部分で発泡原液をある程度含浸するが、
この部分は製品であるシートとしては凹部になる
ので風合いには無関係であるばかりでなく、むし
ろ前記のように発泡原液がこの部分に含浸して発
泡するのでフオームと表皮体との一体性が良効と
なり強く結合し、その結果長期間の使用による表
皮のクツシヨン部からの剥離性は低くなる。ま
た、上記のようにして製造されるので、生産性は
極めて良好となる。 As described above, in the method of the present invention, a polyurethane foam pad is placed in the recesses of a skin body that has been previously formed into the pattern in a mold having a predetermined uneven pattern on the inner surface so as to cover only the recesses. Then, a polyurethane foaming stock solution is injected into this, and the foaming stock solution is foamed integrally with the skin body and pad to produce a polyurethane integrally foamed sheet. Therefore, the injected foaming stock solution is Since the concave portions, that is, the convex surfaces of the sheet as a product, come into contact only through the pad, the foaming stock solution is not impregnated into the fabric layer on the back side of the skin body, but only into the pad. Therefore, when the foaming solution foams and forms a foam, the skin does not become hard, and the foaming solution does not reach the parts of the pad that come into contact with the skin, so the cushion texture of the product sheet is affected. It won't hurt anything. on the other hand,
The convex parts of the skin body during preforming come into contact with the foaming stock solution, so these parts are impregnated with the foaming stock solution to some extent;
This area not only has nothing to do with the texture of the sheet as it becomes a concave part of the product, but in fact, as mentioned above, the foaming solution impregnates this area and foams, so the integrity of the foam and the skin body is good. As a result, the peeling of the epidermis from the cushion part after long-term use is reduced. Furthermore, since it is manufactured as described above, productivity is extremely high.
第1〜3図は本発明方法の一実施例を示す各工
程の断面図、第4〜5図は本発明方法により製造
される一体発泡シートの一例を示す斜視図であ
る。
1……下型、2……表皮体、4……吸引装置、
5……吸引孔、6……凹部、7……凸部、8……
ポリウレタンフオームパツド、9……発泡原液含
浸部、10……発泡原液層、11……上型、12
……ポリウレタンフオーム、13……一体発泡シ
ート。
1 to 3 are sectional views showing each step of an embodiment of the method of the present invention, and FIGS. 4 to 5 are perspective views showing an example of an integrally foamed sheet produced by the method of the present invention. 1... lower mold, 2... epidermal body, 4... suction device,
5... Suction hole, 6... Concave portion, 7... Convex portion, 8...
Polyurethane foam pad, 9... Foaming stock solution impregnated part, 10... Foaming stock solution layer, 11... Upper mold, 12
...Polyurethane foam, 13...Integrated foam sheet.
Claims (1)
内で前記パターンを予め成形された表皮体の凹部
に、該凹部のみを覆うようにポリウレタンフオー
ムパツドを載置し、ついでこれにポリウレタン発
泡原液を注入し、さらに該発泡原液を前記表皮体
およびパツドと一体的に発泡させることを特徴と
するポリウレタン一体発泡シートの製造方法。1. A polyurethane foam pad is placed in the recessed part of the skin body on which the pattern has been previously formed in a mold having a predetermined uneven pattern on the inner surface so as to cover only the recessed part, and then a polyurethane foam stock solution is placed on this. 1. A method for producing an integrally foamed polyurethane sheet, which comprises: injecting a foaming stock solution into the foam, and then foaming the foaming stock solution integrally with the skin and the pad.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6884580A JPS56164829A (en) | 1980-05-26 | 1980-05-26 | Production of integral foamed sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6884580A JPS56164829A (en) | 1980-05-26 | 1980-05-26 | Production of integral foamed sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56164829A JPS56164829A (en) | 1981-12-18 |
JPS6362369B2 true JPS6362369B2 (en) | 1988-12-02 |
Family
ID=13385424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6884580A Granted JPS56164829A (en) | 1980-05-26 | 1980-05-26 | Production of integral foamed sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56164829A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59135131A (en) * | 1983-01-24 | 1984-08-03 | Mitsubishi Plastics Ind Ltd | Preparation of expanded resin molded product |
DE3407737A1 (en) * | 1984-03-02 | 1985-09-05 | Noel, Marquet & Cie. S.A., Eupen | METHOD FOR PRODUCING MOLDED BODIES FROM FOAM PLASTIC |
DE3414794C2 (en) * | 1984-04-18 | 1986-12-18 | Metzeler Schaum Gmbh, 8940 Memmingen | Process for the production of back-foamed molded parts |
JPS6179635A (en) * | 1984-09-28 | 1986-04-23 | Inoue Mtp Co Ltd | Manufacture of door trim |
JPH0688265B2 (en) * | 1989-12-18 | 1994-11-09 | 河西工業株式会社 | Interior parts for automobile and manufacturing method thereof |
JPH03197108A (en) * | 1989-12-27 | 1991-08-28 | Ikeda Bussan Co Ltd | Integral molding method for skin material and padding material |
FR2891777A1 (en) * | 2005-10-10 | 2007-04-13 | Cera | Seat upholstery for motor vehicle, has cover covering foam body and having central part surrounded partially by peripheral zone that is associated to part by confection, where part is over-molded by foam body |
FR2891778B1 (en) * | 2005-10-10 | 2008-01-18 | Cera | AUTOMOTIVE VEHICLE SEAT MAINASSURE WHERE THE COATING INCLUDES A DISSOCIATED PARIPHERIC AREA OF THE FOAM |
-
1980
- 1980-05-26 JP JP6884580A patent/JPS56164829A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS56164829A (en) | 1981-12-18 |
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