JPH0376854A - Cushion material and its production - Google Patents
Cushion material and its productionInfo
- Publication number
- JPH0376854A JPH0376854A JP1207741A JP20774189A JPH0376854A JP H0376854 A JPH0376854 A JP H0376854A JP 1207741 A JP1207741 A JP 1207741A JP 20774189 A JP20774189 A JP 20774189A JP H0376854 A JPH0376854 A JP H0376854A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- emulsion
- urethane
- water
- impregnated
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 title abstract description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 7
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 abstract description 6
- 150000003077 polyols Chemical class 0.000 abstract description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 4
- -1 isocyanate compound Chemical class 0.000 abstract description 4
- 239000012948 isocyanate Substances 0.000 abstract description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract description 2
- 235000011187 glycerol Nutrition 0.000 abstract description 2
- 229920001778 nylon Polymers 0.000 abstract description 2
- 238000012644 addition polymerization Methods 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 21
- 229920000728 polyester Polymers 0.000 description 15
- 239000002184 metal Substances 0.000 description 7
- 229920002994 synthetic fiber Polymers 0.000 description 7
- 239000012209 synthetic fiber Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 5
- 238000010494 dissociation reaction Methods 0.000 description 4
- 230000005593 dissociations Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000002981 blocking agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- WHIVNJATOVLWBW-UHFFFAOYSA-N n-butan-2-ylidenehydroxylamine Chemical compound CCC(C)=NO WHIVNJATOVLWBW-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、車両、家具、寝具等に利用可能な繊維系クッ
ション体及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fiber-based cushion body that can be used for vehicles, furniture, bedding, etc., and a method for manufacturing the same.
［従来の技術］
従来、車両シート用等のクッションの素材として種々の
ものが用いられている。例えば、椰子の繊維を用いたパ
ームロック、ウレタンフオーム等の合成樹脂発泡体、有
機合成繊維の綿などが使用されてきた。しかし、パーム
ロックは比重が大きく、へたり易く、原料の供給安定性
に問題があり、ウレタンフオームは通気性が悪いため蒸
れ易く、座り心地に難点がある。更に、有機合成繊維の
綿は、硬さが小さく、へたりが大きいという欠点がある
。[Prior Art] Conventionally, various materials have been used for cushions for vehicle seats and the like. For example, palm rock made from coconut fibers, synthetic resin foams such as urethane foam, and cotton, an organic synthetic fiber, have been used. However, palm rock has a high specific gravity and easily sag, which poses problems in the stability of raw material supply, while urethane foam has poor breathability and tends to get stuffy, making it uncomfortable to sit on. Furthermore, cotton, which is an organic synthetic fiber, has the drawbacks of low hardness and large settiness.
そこで、近年、立体的に絡み合った有機合成繊維の交差
部をウレタン樹脂で結合してなるクッション体が開発さ
れ、特開昭６１−１５８４３７号公報において提案され
ている。このクッション体は、通気性に優れ、へたりに
＜＜、耐久性が高く、軽量であるという利点を有してい
る。Therefore, in recent years, a cushion body formed by bonding intersections of three-dimensionally intertwined organic synthetic fibers with a urethane resin has been developed and proposed in Japanese Patent Application Laid-Open No. 158437/1983. This cushion body has the advantages of excellent breathability, resistance to fatigue, high durability, and light weight.
［発明が解決しようとする課題］
立体的に絡み合った有機合成繊維の交差部をウレタン樹
脂で結合してなるクッション体の製造に際しては、通常
、有機合成繊維をウレタンプレポリマーで含浸させ、次
いでウレタンプレポリマーを硬化させていた。この場合
、ウレタンプレポリマーは極めて粘度が高く、有機合成
繊維に含浸させることが出来ないことから、ウレタンプ
レポリマーを有機溶剤で希釈してウレタンプレポリマー
の粘度を調整して用いていた。[Problems to be Solved by the Invention] When producing a cushion body made by bonding intersections of three-dimensionally intertwined organic synthetic fibers with a urethane resin, the organic synthetic fibers are usually impregnated with a urethane prepolymer, and then urethane is added to the cushion body. The prepolymer was being cured. In this case, since the urethane prepolymer has an extremely high viscosity and cannot be impregnated into organic synthetic fibers, the urethane prepolymer is diluted with an organic solvent to adjust the viscosity of the urethane prepolymer.
しかし、有機溶剤として用いられる１、１．１−トリク
ロロエタン等は、毒性が強いため、環境問題からそのま
ま廃棄することが出来ず、大掛かりな回収設備等が必要
となる。また、ウレタンプレポリマーの硬化には、水蒸
気が用いられるため、ボイラー等の高価な設備が必要で
ある。However, 1,1,1-trichloroethane and the like used as organic solvents are highly toxic and cannot be disposed of as they are due to environmental concerns, and large-scale recovery equipment is required. Furthermore, since steam is used to cure the urethane prepolymer, expensive equipment such as a boiler is required.
本発明の目的は、通気性に優れ、へたりにくく、耐久性
が高く、軽量であるとともに、有機溶媒を用いることな
く高い作業性をもって製造可能なりッション体およびそ
の製造方法を提供することにある。An object of the present invention is to provide a cushion body that has excellent air permeability, is resistant to fading, is highly durable, lightweight, and can be manufactured with high workability without using organic solvents, and a method for manufacturing the same. .
［課題を解決するための手段］
本発明によると、立体的に絡み合った吸水性繊維に水性
ウレタンエマルジョンを含浸させ、加熱硬化させてなり
、前記吸水性繊維の表面がウレタン樹脂で被覆され、か
つ前記繊維の交絡部において繊維相互がウレタン樹脂に
より結合されているクッション体が提供される。[Means for Solving the Problems] According to the present invention, three-dimensionally entangled water absorbent fibers are impregnated with an aqueous urethane emulsion and cured by heating, and the surface of the water absorbent fibers is coated with a urethane resin, and A cushion body is provided in which the fibers are bonded to each other by a urethane resin at the intertwined portion of the fibers.
更に本発明によると、立体的に絡み合った吸水性繊維に
水性ウレタンエマルジョンを含浸させる工程、過剰の水
性ウレタンエマルジョンを脱液する工程、及び前記吸水
性繊維に含浸した水性ウレタンエマルジョンを加熱硬化
させる工程を具備するクッション体の製造方法が提供さ
れる。Further, according to the present invention, there are a step of impregnating the water-based urethane emulsion into three-dimensionally entangled water-absorbing fibers, a step of removing excess water-based urethane emulsion, and a step of heating and curing the water-based urethane emulsion impregnated into the water-absorbing fibers. A method of manufacturing a cushion body is provided.
本発明に用いられる水性ウレタンは、グリセリン等に酸
化エチレンと酸化プロピレンとの混合物を付加重合させ
て得たポリオールに、イソシアネート化合物を反応させ
て得たものである。この水性ウレタン中には、必要に応
じて硬化剤を含有させてもよい。硬化剤としては、エポ
キシ樹脂、メラミン樹脂等がある。また、上記ポリオー
ルに、フェノール等のブロック剤でイソシアネート基を
ブロックしたイソシアネート化合物を反応させて得たブ
ロック化水性ウレタンを用いることも好ましい。The aqueous urethane used in the present invention is obtained by reacting an isocyanate compound with a polyol obtained by addition-polymerizing a mixture of ethylene oxide and propylene oxide with glycerin or the like. This aqueous urethane may contain a curing agent if necessary. Examples of hardening agents include epoxy resins and melamine resins. It is also preferable to use a blocked aqueous urethane obtained by reacting the polyol with an isocyanate compound whose isocyanate groups are blocked with a blocking agent such as phenol.
ウレタンエマルジョンの濃度は、２５〜３５重量％が好
ましい。The concentration of the urethane emulsion is preferably 25 to 35% by weight.
本発明に用いられる立体的に絡み合った吸水性繊維とし
ては、ポリアルキレングリコール、イソフタル酸金属塩
、共重合ポリエチレンテレフタレート等により親水性処
理が施された種々の有機合成繊維の綿を用いることが出
来る。有機合成繊維としては、ポリエステル繊維、ナイ
ロン繊維、アクリル繊維等を用いることが出来る。これ
ら繊維に金属やガラス等の無機繊維を含有させてもよい
。As the three-dimensionally entangled water-absorbing fibers used in the present invention, various organic synthetic cotton fibers that have been subjected to hydrophilic treatment with polyalkylene glycol, isophthalic acid metal salts, copolymerized polyethylene terephthalate, etc. can be used. . As the organic synthetic fiber, polyester fiber, nylon fiber, acrylic fiber, etc. can be used. These fibers may contain inorganic fibers such as metal or glass.
本発明において、過剰のエマルジョンの脱液は、遠心分
離機やマングル等を用いて、繊維とエマルジョンとの重
量比が８：２〜６：４となるように行うのが好ましい。In the present invention, it is preferable to remove excess emulsion using a centrifuge, a mangle, or the like so that the weight ratio of fiber to emulsion is 8:2 to 6:4.
硬化のための加熱温度は、１００〜１５０℃が好ましい
。ブロック化水性ウレタンプレポリマーを用いた場合に
は、加熱温度はブロック剤の解離温度以上であり、１１
５〜１５０℃が好ましい。The heating temperature for curing is preferably 100 to 150°C. When a blocked aqueous urethane prepolymer is used, the heating temperature is higher than the dissociation temperature of the blocking agent, and 11
5 to 150°C is preferred.
［作 用」
本発明においては、立体的に絡み合った繊維として吸水
性繊維が用いられ、繊維の交絡部において繊維相互を結
合するためのバインダーとして、水性ウレタンが用いら
れる。このウレタンは親水性であるため、有機溶剤を用
いることなく水により自由に濃度の調整が可能であり、
所望の濃度のエマルジョンを容易に立体的に絡み合った
繊維に含浸させることが出来る。[Function] In the present invention, water-absorbing fibers are used as three-dimensionally entangled fibers, and water-based urethane is used as a binder for bonding the fibers together at the intertwined portions of the fibers. Since this urethane is hydrophilic, its concentration can be freely adjusted with water without using organic solvents.
Three-dimensionally entangled fibers can be easily impregnated with an emulsion of a desired concentration.
またウレタンは、ブロック剤でイソシアネート基がブロ
ックされているため、架橋性を保持したまま含浸、脱液
を行うことが出来、かつ、種々の架橋剤を混和して上述
の加熱温度、即ちブロック剤の解離温度以上に加熱する
ことにより、容易に硬化させることが出来る。In addition, since the isocyanate groups of urethane are blocked with a blocking agent, it is possible to impregnate and remove liquid while maintaining crosslinking properties. It can be easily hardened by heating above the dissociation temperature of .
［実施例］
以下、本発明の実施例と比較例とを示し、本発明を具体
的に説明する。[Example] Hereinafter, the present invention will be specifically explained by showing examples and comparative examples of the present invention.
実施例１
ポリエーテルポリオール（分子量：３０００、官能基数
＝３）とＴＤＩ （）リレンジイソシアネート）とを
８０℃で４時間反応させ、次いでメチルエチルケトンオ
キシム（１，０等量）を加え、４０℃で２時間反応させ
て得たブロック化水性ウレタンプレポリマー（解離温度
１１０℃以上）を攪拌下で水に投入し、不揮発分３０．
５％、粘度１２０ ｃ、 ｐ、 （２０℃）のエマ
ルジョンを得た。Example 1 Polyether polyol (molecular weight: 3000, number of functional groups = 3) and TDI () lylene diisocyanate) were reacted at 80°C for 4 hours, then methyl ethyl ketone oxime (1,0 equivalent) was added, and the reaction was carried out at 40°C for 2 hours. The blocked aqueous urethane prepolymer (dissociation temperature: 110°C or higher) obtained by reacting for a period of time was poured into water with stirring, and the non-volatile content was 30.
An emulsion of 5% and a viscosity of 120 c,p, (20°C) was obtained.
このエマルジョンをポリエステル綿（奇人社製、親水性
綿６ｄ）に過剰に含浸させた後、これを遠心力により所
定量のエマルジョンが残留するまで脱液した。次いで、
所定密度となるようにパンチングメタル製の型に充填し
た。このとき、ポリエステル綿とプレポリマーエマルジ
ョンとの重量比が７；３となるようにした。Polyester cotton (manufactured by Kijinsha, hydrophilic cotton 6d) was impregnated with this emulsion in an excessive amount, and then the liquid was removed by centrifugal force until a predetermined amount of emulsion remained. Then,
It was filled into a punching metal mold to a predetermined density. At this time, the weight ratio of polyester cotton and prepolymer emulsion was set to 7:3.
型に充填されたポリエステル綿中のウレタンプレポリマ
ーを１２０〜１３０℃の熱風を通すことにより４分で硬
化させ、その後脱型することによりクッションサンプル
を得た。The urethane prepolymer in polyester cotton filled in the mold was cured in 4 minutes by passing hot air at 120 to 130°C, and then removed from the mold to obtain a cushion sample.
実施例２
ポリエーテルポリオール（分子量＝１０００、官能基数
＝２）とＴＤＩ （トリレンジイソシアネート）とを８
０℃で４時間反応させ、硬化剤としてエポキシ系樹脂を
加えて得た水性ウレタンプレポリマーを攪拌下で水に投
入し、不揮発分３０％、粘度５０ｃ、ｐ、（２０℃）の
エマルジョンを得た。このエマルジョンをポリエステル
綿（奇人社製、親水性綿６ｄ）に過剰に含浸させた後、
これを遠心力により所定量のエマルジョンが残留するま
で脱液した。次いで、所定密度となるようにパンチング
メタル製の型に充填した。このとき、ポリエステル綿と
プレポリマーエマルジョンとの重量比が７：３となるよ
うにした。Example 2 Polyether polyol (molecular weight = 1000, number of functional groups = 2) and TDI (tolylene diisocyanate)
The aqueous urethane prepolymer obtained by reacting at 0°C for 4 hours and adding an epoxy resin as a curing agent was poured into water under stirring to obtain an emulsion with a non-volatile content of 30% and a viscosity of 50c, p (at 20°C). Ta. After excessively impregnating polyester cotton (manufactured by Kijinsha, hydrophilic cotton 6d) with this emulsion,
This was drained by centrifugal force until a predetermined amount of emulsion remained. Next, it was filled into a punching metal mold to a predetermined density. At this time, the weight ratio of polyester cotton and prepolymer emulsion was adjusted to 7:3.
型に充填されたポリエステル綿に１２０〜１３０℃の熱
風を通すことにより４分で硬化させ、その後脱型するこ
とによりクッションサンプルを得た。The polyester cotton filled in the mold was cured in 4 minutes by passing hot air at 120 to 130°C, and then removed from the mold to obtain a cushion sample.
実施例３
実施例１で用いたものと同様のエマルジョンをポリエス
テル綿（奇人社製、親水性綿６ｄ）に過剰に含浸させた
後、これをマングル（５〜６ｋｇｆ／ｃＪ）により所定
量のエマルジョンが残留するまで脱液した。次いで、次
いで、所定密度となるようにパンチングメタル製の型に
充填した。Example 3 Polyester cotton (manufactured by Kijinsha, hydrophilic cotton 6d) was impregnated with an excessive amount of the same emulsion as that used in Example 1, and then a predetermined amount of emulsion was added using a mangle (5 to 6 kgf/cJ). The liquid was removed until . Next, it was filled into a punched metal mold so as to have a predetermined density.
このとき、ポリエステル綿とプレポリマーエマルジョン
との重量比が７：３となるようにした。At this time, the weight ratio of polyester cotton and prepolymer emulsion was set to 7:3.
型に充填されたポリエステル綿に１２０〜１３０℃の熱
風を通すことにより４分で硬化させ、その後脱型するこ
とによりクッションサンプルを得た。The polyester cotton filled in the mold was cured in 4 minutes by passing hot air at 120 to 130°C, and then removed from the mold to obtain a cushion sample.
比較例１
ポリエーテルポリオール（分子ｆｉ： ３０００、官能
基数：３）とＴＤＩ （トリレンジイソシアネート）と
を８０℃で４時間反応させ、次いでメチルエチルケトン
オキシム（１，０等量）を加え、４０℃で２時間反応さ
せて得たブロック化水性ウレタンプレポリマー（解離温
度１１０℃以上）を攪拌下で水に投入し、不揮発分３０
，５％、粘度１２０ｃ、ｐ、（２０℃）のエマルジョン
を得た。Comparative Example 1 Polyether polyol (molecule fi: 3000, number of functional groups: 3) and TDI (tolylene diisocyanate) were reacted at 80°C for 4 hours, then methyl ethyl ketone oxime (1.0 equivalent) was added, and the mixture was reacted at 40°C. The blocked aqueous urethane prepolymer (dissociation temperature: 110°C or higher) obtained by reacting for 2 hours was poured into water with stirring, and the non-volatile content was 30%.
, 5% and a viscosity of 120c,p (20°C) was obtained.
このエマルジョンをポリエステル綿（奇人社製、親水性
綿６ｄ）に過剰に含浸させた後、これを遠心力により所
定量のエマルジョンが残留するまで脱液した。次いで、
所定密度となるようにパンチングメタル製の型に充填し
た。このとき、ポリエステル綿とプレポリマーエマルジ
ョンとの重量比が７：３となるようにした。Polyester cotton (manufactured by Kijinsha, hydrophilic cotton 6d) was impregnated with this emulsion in an excessive amount, and then the liquid was removed by centrifugal force until a predetermined amount of emulsion remained. Then,
It was filled into a punching metal mold to a predetermined density. At this time, the weight ratio of polyester cotton and prepolymer emulsion was set to 7:3.
型に充填されたポリエステル綿に１２０〜１３０℃の熱
風を通すことにより４分で硬化させ、その後脱型するこ
とによりクッションサンプルを得た。The polyester cotton filled in the mold was cured in 4 minutes by passing hot air at 120 to 130°C, and then removed from the mold to obtain a cushion sample.
比較例２
ウレタンプレポリマー（三井東圧化学社製ＡＸ−７１０
，−ＮＣＯ：５．０％）４５重量部に１゜１．１−トリ
クロロエタン５５重量部を加え、粘度を７０ｃｐに調整
した溶液を、ポリエステル綿（奇人社製、バイパル６ｄ
）に過剰に含浸させた後、これを遠心力により所定量の
ウレタンプレポリマー溶液が残留するまで脱液した。次
いで、所定密度となるようにパンチングメタル製の型に
充填した。このとき、ポリエステル綿とプレポリマー溶
液との重量比が７：３となるようにした。Comparative Example 2 Urethane prepolymer (AX-710 manufactured by Mitsui Toatsu Chemical Co., Ltd.
, -NCO: 5.0%) and 55 parts by weight of 1゜1.1-trichloroethane were added to adjust the viscosity to 70 cp.
) was impregnated in excess, and then the liquid was removed by centrifugal force until a predetermined amount of the urethane prepolymer solution remained. Next, it was filled into a punching metal mold to a predetermined density. At this time, the weight ratio of polyester cotton and prepolymer solution was adjusted to 7:3.
型に充填されたポリエステル綿中のウレタンプレポリマ
ーを１００〜１３０℃の−ＮＧＯ当量以上の水蒸気によ
り４分で硬化させ、その後脱型することによりクッショ
ンサンプルを得た。A cushion sample was obtained by curing the urethane prepolymer in the polyester cotton filled in the mold for 4 minutes with water vapor of -NGO equivalent or more at 100 to 130°C, and then removing the mold.
以上の実施例及び比較例により得た５種のクッションサ
ンプルについて、種々の特性を試験したところ、下記表
に示す結果を得な。When various properties were tested for the five types of cushion samples obtained in the above Examples and Comparative Examples, the results shown in the table below were obtained.
上記表に示すように、本発明のクッション体（実施ｆｉ
ＩＪ１〜３）は、吸水性繊維を用いないクッション体（
比較例１）、有機溶剤により粘度を調整されたウレタン
プレポリマーを用いたクッション体（比較例２）と比べ
、密度、硬さ、反発弾性、繰返し圧縮歪、において同程
度の特性を有するとともに、反発弾性、熱圧縮歪、及び
接合部剥離強度、引張強度において優れていることがわ
かる。As shown in the table above, the cushion body of the present invention (implementation fi
IJ1-3) are cushion bodies (
Compared to Comparative Example 1) and a cushion body using a urethane prepolymer whose viscosity was adjusted with an organic solvent (Comparative Example 2), it has similar properties in terms of density, hardness, impact resilience, and repeated compressive strain, and It can be seen that it is excellent in impact resilience, thermal compressive strain, joint peel strength, and tensile strength.
［発明の効果］
以上説明したように、本発明によると、水性ウレタンを
用いているため、水により粘度調整を行うことが出来る
。従って、従来のように有毒な有機溶剤を用いる必要が
なく、環境性、作業性の改善が可能である。また、吸水
性繊維を用いているため、熱圧縮特性が改善されるとと
もに、引張強度が向上する。[Effects of the Invention] As explained above, according to the present invention, since water-based urethane is used, the viscosity can be adjusted with water. Therefore, there is no need to use toxic organic solvents as in the past, and environmental friendliness and workability can be improved. Furthermore, since water-absorbing fibers are used, the thermal compression properties and tensile strength are improved.
また、ブロック化水性ウレタンプレポリマーを用いた場
合には、−液で種々の架橋剤を混和させることが出来、
それによって、バインダー樹脂としての性質を還択する
自由度が大きくなった。更にまた、硬化のための水蒸気
を用いないため、設備の軽減が可能である。In addition, when using a blocked water-based urethane prepolymer, various crosslinking agents can be mixed with a -liquid.
This increases the degree of freedom in selecting the properties of the binder resin. Furthermore, since no steam is used for curing, the amount of equipment can be reduced.
このように、本発明によると、車両、家具、寝具等に好
適に利用可能な優れたクッション体が提供される。Thus, according to the present invention, an excellent cushion body that can be suitably used for vehicles, furniture, bedding, etc. is provided.
Claims (2)
マルジョンを含浸させ、加熱硬化してなり、前記繊維の
表面がウレタン樹脂で被覆され、かつ前記繊維の交絡部
において繊維相互がウレタン樹脂により結合されている
クッション体。(1) Three-dimensionally entangled water absorbent fibers are impregnated with an aqueous urethane emulsion and cured by heating, the surface of the fibers is coated with urethane resin, and the fibers are bonded to each other by the urethane resin at the intertwined portions of the fibers. Cushion body.
マルジョンを含浸させる工程、過剰の水性ウレタンエマ
ルジョンを脱液する工程、及び前記繊維に含浸した水性
ウレタンエマルジョンを加熱硬化させる工程を具備する
クッション体の製造方法。(2) A cushion body comprising a step of impregnating three-dimensionally entangled water-absorbing fibers with an aqueous urethane emulsion, a step of removing excess aqueous urethane emulsion, and a step of heating and curing the aqueous urethane emulsion impregnated into the fibers. manufacturing method.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207741A JPH0376854A (en) | 1989-08-10 | 1989-08-10 | Cushion material and its production |
| CA 2022722 CA2022722C (en) | 1989-08-10 | 1990-08-03 | Cushion material and method of manufacturing the same |
| US07/562,204 US5021286A (en) | 1989-08-10 | 1990-08-03 | Cushion material and method of manufacturing the same |
| EP19900115182 EP0414041B1 (en) | 1989-08-10 | 1990-08-07 | Cushion material and method of manufacturing the same |
| DE1990614169 DE69014169T2 (en) | 1989-08-10 | 1990-08-07 | Upholstery material and process for its manufacture. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207741A JPH0376854A (en) | 1989-08-10 | 1989-08-10 | Cushion material and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0376854A true JPH0376854A (en) | 1991-04-02 |
Family
ID=16544768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1207741A Pending JPH0376854A (en) | 1989-08-10 | 1989-08-10 | Cushion material and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0376854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020076176A (en) * | 2018-11-09 | 2020-05-21 | 帝人フロンティア株式会社 | Hygroscopic fiber structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112979A (en) * | 1984-06-27 | 1986-01-21 | 三洋化成工業株式会社 | Transfer inhibiting agent |
| JPS61279277A (en) * | 1985-06-06 | 1986-12-10 | 日本発条株式会社 | Cushion body and its production |
| JPS6375177A (en) * | 1986-09-18 | 1988-04-05 | 帝人株式会社 | Hydrophilic binder fiber and its production |
-
1989
- 1989-08-10 JP JP1207741A patent/JPH0376854A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112979A (en) * | 1984-06-27 | 1986-01-21 | 三洋化成工業株式会社 | Transfer inhibiting agent |
| JPS61279277A (en) * | 1985-06-06 | 1986-12-10 | 日本発条株式会社 | Cushion body and its production |
| JPS6375177A (en) * | 1986-09-18 | 1988-04-05 | 帝人株式会社 | Hydrophilic binder fiber and its production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020076176A (en) * | 2018-11-09 | 2020-05-21 | 帝人フロンティア株式会社 | Hygroscopic fiber structure |
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