EP0423621A2 - Rembourrage de vêtement - Google Patents

Rembourrage de vêtement Download PDF

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Publication number
EP0423621A2
EP0423621A2 EP90119516A EP90119516A EP0423621A2 EP 0423621 A2 EP0423621 A2 EP 0423621A2 EP 90119516 A EP90119516 A EP 90119516A EP 90119516 A EP90119516 A EP 90119516A EP 0423621 A2 EP0423621 A2 EP 0423621A2
Authority
EP
European Patent Office
Prior art keywords
pad
polyurethane foam
clothing
nonyellowing
urethane resin
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.)
Withdrawn
Application number
EP90119516A
Other languages
German (de)
English (en)
Other versions
EP0423621A3 (en
Inventor
Hiroyuki Matumoto
Shigeru Ueno
Hideo Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Publication of EP0423621A2 publication Critical patent/EP0423621A2/fr
Publication of EP0423621A3 publication Critical patent/EP0423621A3/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/26—Shoulder-pads; Hip-pads; Bustles

Definitions

  • This invention relates to a clothing pad such as a shoulder pad, a brassiere pad, a knee pad, an elbow pad, a buttock pad and the like.
  • Conventionally known clothing pads such as shoulder pads include those consisting of polyurethane foam, those consisting of a polyurethane foam pad core covered with a non-woven fabric and those obtained by shaping non-woven fabrics into pads.
  • the above clothing pads consisting of polyurethane foam can be obtained by cutting polyurethane foam into pads or by cutting polyurethane foam into shapes similar to those of final products and then shaping the intermediate products into pads by thermal pressing.
  • the pads consisting of polyurethane foam have inferior antiweatherability since the foam gradually yellows during use, resulting in that the outside clothing of an article of clothing touching the pads come to appear discolored.
  • the inventors have considered the use of a nonyellowing polyurethane foam for pads as a countermeasure.
  • a nonyellowing polyurethane foam is not suitable as a pad material because it is very expensive and it is difficult to regulate its foam properties such as hardness.
  • polyether polyurethane foams are not suitable for dry cleaning because they have inferior solvent resistance and their dry cleaning results in their significant swelling and reduced strength. It is necessary to use expensive polyester polyurethane foams as pad materials when dry cleaning is necessary.
  • the pads consisting of a polyurethane foam pad core covered with a non-woven fabric are disadvantageous because they are not economical because many processes are required for processing and the non-woven fabric deteriorates the intrinsic feel and form-maintaining property of the polyurethane foam.
  • the pads consisting of non-woven fabrics alone are disadvantageous because it is more difficult to produce their proper shapes as compared to polyurethane foam pads, they have inferior form-­maintaining property and they are too soft. Moreover, as they are formed by laminating pieces of non-woven fabric, it takes a long time to produce the pads, resulting in high costs.
  • An object of this invention is to provide a novel clothing pad which is free from any disadvantages of the conventional clothing pads in their yellowing, form-maintaining property, dry cleaning suitability, production costs and feels during use.
  • a clothing pad consisting of a polyurethane foam pad core and a film of a nonyellowing urethane resin coating formed on at least the surface of the pad core to be made in contact with the outside cloth of an article of clothing.
  • the clothing pad according to the present invention consists of a polyurethane foam pad core and a film of a nonyellowing urethane resin coating formed thereon.
  • polyurethane foam used to form a pad core
  • any one of flexible, semi-rigid or rigid polyurethane foams can be used, flexible or semi-­rigid polyurethane foams being preferred.
  • a polyurethane foam used to form a pad core is not specially restricted and they can be properly selected according to the purpose of use, it is usually suitable to use a polyurethane foam having a density of 0.014 to 0.050 g/cm3, a hardness (JIS-K-6401) of 4 to 25 kgf and a cell number of 20 to 60/inch.
  • a polyester polyurethane foam or a polyether polyurethane foam can be used as the polyurethan foam.
  • a polyether polyurethane foam is used for a pad core without the problem of dry cleaning suitability by coating the entire surface of the pad core with a polyester polyurethane nonyellowing urethane resin coating which is excellently solvent resistant.
  • a coating film is formed only on the surface of a pad core to be made in contact with the outside cloth of an article of clothing, it is desirable to use a polyester polyurethane foam in terms of dry cleaning suitability.
  • it is possible to use a nonyellowing polyurethane foam although it is preferable to use a usual polyurethane foam because of physical properties of the foam and its price.
  • the nonyellowing urethane resin coating has excellent antiweatherability and dose not easily yellow.
  • the nonyellowing urethane resin one produced from a polyol and an aliphatic isocyanate can favorably be used.
  • the polyols include polyester polyols having a molecular weight of 1000 to 4000 obtained by condensation polymerization of dicarboxylic acid such as phthalic acid, adipic acid, succinic acid, azelaic acid, sebacic acid, ricinoleic acid and the like and a glycol such as ethylene glycol, propylene glycol, butane diol, hexane diol, neopentyl glycol, diethylene glycol, 1,4-butanediol, triethylene glycol, pentane diol, cyclohexane dimethanol and the like, and polyester polyols having a molecular weight of 1000 to 4000 by addition polymerization of propylene oxide and/or
  • polyester polyols having a molecular weight of 1000 to 4000, preferably 1500 to 3000 are preferred.
  • a polyester polyol having a molecular weight of about 1800 obtained from phthalic acid and diethylene glycol and a polyester polyol having a molecular weight of about 2000 obtained from adipic acid and 1,4-butanediol can be used.
  • aliphatic isocyanates examples include 1,6-­hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), xylene diisocyanate (XDI), 2,2,4(2,4,4)-trimethylhexamethylene diisocyanate (TMDI), 4,4-dicyclohexylmethane diisocyanate (HMDI), tetramethylene diisocyanate (TMXDI), 1,4-cyclohexyl diisocynate (CHDI) and lysine diisocyanate.
  • the nonyellowing urethane resin is prepared by reacting the polyol with the aliphatic isocyante.
  • a chain-lengthening agent such as a diol including 1,4-­butanediol, trimethylene glycol, ethylene glycol, diethylene glycol, propylene glycol and dipropylene glycol, a triol including glycerin and trimethylolpropane, a diamine including hexamethylene diamine, 4,4′-diaminodiphenylmethane, m-­phenylenediamine, diethylated toluenediamine, 3,3′-­dichloro-4,4′-diaminodiphenylmethane, mixed mono and dichloro (3,3′ and 5,5′-) isomers of 4,4′-diamino diphenylmethane, hydrazine, 1,4-butaneamine, hexamethylenediamine and isophoronediamine, and an amino alcohol including diethanolamine, triethanolamine, aminoethylethanolamine and 2-amino-2-­methylpropane
  • the molar ratio of the total of OH and NH2 per 1 mol of NCO may be in the range of 0.9 to 1.3, preferably 1.0 to 1.2.
  • the resin terminated with a OH group is preferably used.
  • the molecular weight of the resin may be 50000 to 300000, preferably 100000 to 200000 as number-average molecular weight.
  • a hardner may be used in an effective amount for hardening the resin.
  • the hardner aliphatic diisocyanates explained above and prepolymers terminated with NCO group obtained by lengthening the chain of the aliphatic diisocyanate.
  • the color of a nonyellowing urethane resin coating should be similar to that of the outside cloth of an article of clothing to which the pad is to be attached in order to prevent it from being conspicuously seen through the outside cloth even when it is thin.
  • a nonyellowing urethane resin coating As the method of applying a nonyellowing urethane resin coating to a pad core, brush coating, dip coating, roller coating or spray coating may be adopted. Among them, spray coating is preferred from the point of coating efficiency. In performing spray coating, it is preferably to use a coating composition prepared by dissolving a nonyellowing urethane resin in a volatile solvent such as acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl acetate, ethyl ketone, methyl isobutyl ketone, methyl acetate, ethyl acetate, cyclohexane, isopropyl acetate and the like.
  • the solvent may be used singly or in combination.
  • This coating composition for spraying is sprayed from a position apart from a pad core so that most of the volatile solvent evaporates before reaching the pad core which is a porous body and it is coated with entangled filaments as thin as spider's threads of the solid component.
  • a film of said coating is favorably formed on a pad core by properly adjusting the distance for spraying so that the solid component partially encroaches upon holes of the pad core and closes them.
  • a clothing pad having excellent antiweather­ability and solvent resistance can be obtained by applying an underlayer coating to the surface of a pad core by spray coating to form an underlayer and then applying a nonyellowing urethane resin coating to the underlayer.
  • a coating composition prepared by dissolving a film-forming solid component composed of a nonyellowing urethane resin or a usual urethane rein in a volatile solvent can be used.
  • the total thickness of the underlayer and the nonyellowing urethane resin coating may be 20 to 200 ⁇ m, prefedrably 40 to 120 ⁇ m. More specifically, the thickness of the nonyellowing urethane resin coating may be 20 to 200 ⁇ m, preferably 40 to 120 ⁇ m when an underlayer is not formed and 10 to 140 ⁇ m, preferably 20 to 80 ⁇ m when an underlayer is formed. If the total thickness is less than 20 ⁇ m, the coating effect is hardly exerted. If the total thickness is more than 200 ⁇ m, the feel of a pad core formed by polyurethane foam may be worsened.
  • a clothing pad should have a margin to sew up when an article of clothing and said pad are joined by stitching before its use.
  • making a cloth such as a non-woven fabric having a size larger than a pad core by a margin to sew up in close contact with one surface of the pad core and then forming a film of a nonyellowing urethane resin coating over the pad core and the cloth in close contact with each other enables the margin to sew up to be ensured while maintaining the pad core and the cloth in completely close contact with each other.
  • the clothing pad of this invention consists of a polyurethane foam pad core and a film of a nonyellowing urethane resin coating formed thereon, which has excellent antiweatherability, there is no possibility that a part of the pad core coated with the film is discolored and therefore there is no possibility that a part of the outside cloth of the article of clothing touching the pad appears discolored.
  • a pad core consists of a polyurethane foam, there are no inconveniences that a proper pad shape can not be produced, that the pad easily gets out of shape and is too soft, and that shaping takes a long time, as in the case of a pad consisting of a non-woven fabric alone.
  • a coating film is formed on a pad core, the intrinsic feel and form-maintaining property of a polyurethane foam are not deteriorated as compared with a pad consisting of a pad core covered with non-­woven fabric. Furthermore, when the entire surface of a pad core is coated with a polyester polyurethane nonyellowing urethane resin coating which is excellently solvent resistant, the pad core is completely protected by a film of said coating and there are no problems of dry cleaning suitability even when a cheap polyeter polyurethane foam is used for the pad core, resulting in cheaper cost.
  • a polyurethane foam having a density of 21 kg/m3 and a hardness of 13 kgf was cut in a similar shape of the final product and set in a mold and pressed at 220°C for two minutes to obtain a shoulder pad core having the shape of a final product.
  • a nonyellowing urethane resin coating prepared by dissolving 100 parts by weight of a nonyellowing urethane resin in 350 parts by weight of cyclohexane and 650 parts by weight of isopropyl acetate was applied to either the entire surface of the above shoulder pad core or only its surface to be made in contact with the outside cloth of an article of clothing in a thickness of 50 ⁇ m by spray coating to obtain a shoulder pad, as shown in Figs. 1 and 2.
  • the reference number 1 represents a shoulder pad core and 2 represents a coating film.
  • the nonyellowing urethane resin had a molecular weight of 170,000 and was produced by allowing ethylene glycol and trimethylene glycol to react with a prepolyer having NCO terminal groups which was obtained by allowing HDI (hexamethylene diisocyanate) and a polyester polyol (condensation polymerization product of adipic acid and 1,4-butanediol) to react with each other.
  • HDI hexamethylene diisocyanate
  • polyester polyol condensation polymerization product of adipic acid and 1,4-butanediol
  • An underlayer urethane resin coating prepared by dissolving 100 parts by weight of a polyurethan resin in 300 parts by weight of cyclohexane and 600 parts by weight of isopropyl acetate was applied to either the entire surface of the same shoulder pad core as that used in Example 1 or only its surface to be made in contact with the outside cloth of an article of clothing in a thickness of 40 ⁇ m by spray coating to form an underlayer.
  • the above polyurethane resin had a molecular weight of 150,000, which was produced by allowing ethylene glycol to react with a prepolymer having NCO terminal groups which was produced by allowing pure MDI (4,4′-diphenylmethan diisocyanate) and a polyester polyol (condensation polymerization product of adipic acid and 1,4-butanediol) to react with each other.
  • a nonyellowing urethane resin coating having the following composition was applied to the above underlayer in a thickness of 50 ⁇ m by spray coating to obtain a shoulder pad, as shown in Figs. 1 and 2.
  • the form-maintaining property of the shoulder pads was investigated by 500 times of repeated 90% compression. As the result, a shoulder pad consisting of a non-woven fabric alone significantly got out of shape under the same condition, whereas the shoulder pads of this invention did not get out of shape.
  • each of the shoulder pad of this invention and a polyether polyurethane foam was washed by dry cleaning.
  • the polyether polyurethane foam was significantly swollen, whereas the shoulder pad of this invention was not swollen.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Details Of Garments (AREA)
  • Corsets Or Brassieres (AREA)
  • Laminated Bodies (AREA)
EP19900119516 1989-10-16 1990-10-11 A clothing pad Withdrawn EP0423621A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12112689U JPH0359315U (fr) 1989-10-16 1989-10-16
JP121126/89U 1989-10-16

Publications (2)

Publication Number Publication Date
EP0423621A2 true EP0423621A2 (fr) 1991-04-24
EP0423621A3 EP0423621A3 (en) 1992-07-29

Family

ID=14803526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900119516 Withdrawn EP0423621A3 (en) 1989-10-16 1990-10-11 A clothing pad

Country Status (2)

Country Link
EP (1) EP0423621A3 (fr)
JP (1) JPH0359315U (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419475A (en) * 1992-03-17 1995-05-30 Taisei Plas Co., Ltd. Shoulder belt
ITVR20100231A1 (it) * 2010-12-07 2012-06-08 Dainese Spa Articolo includente un cuscinetto e procedimento per realizzare tale articolo

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2685734B2 (ja) * 1995-06-08 1997-12-03 株式会社ダッチェス ブラジャー等のパッド

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH274818A (de) * 1949-10-17 1951-04-30 Wirz Frei Sylvia Achselpolster.
FR1276579A (fr) * 1960-12-23 1961-11-17 Procédé de fabrication de garnitures de soutien-gorge et garnitures conformes à celles obtenues par le procédé précédent ou procédé similaire, ainsi que les soutiens-gorge munis de ces garnitures
DE3704570A1 (de) * 1986-02-20 1987-08-27 Dittrich Schluessel Kg Verfahren zum herstellen von schulterformstuecken und nach dem verfahren hergestellte schulterformstuecke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419475A (en) * 1992-03-17 1995-05-30 Taisei Plas Co., Ltd. Shoulder belt
ITVR20100231A1 (it) * 2010-12-07 2012-06-08 Dainese Spa Articolo includente un cuscinetto e procedimento per realizzare tale articolo
EP2463089A1 (fr) * 2010-12-07 2012-06-13 Dainese S.p.A. Article comprenant un tampon et procédé pour préparation d'un tel article

Also Published As

Publication number Publication date
EP0423621A3 (en) 1992-07-29
JPH0359315U (fr) 1991-06-11

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