JPH10130924A - Clothes core material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a garment interlining comprising a polyester-based recyclable flexible resin, etc., small in weight, not deformed by a washing treatment, etc., soft in touch, excellent in shape restorability and suitable as an interlining material for a closed collar, a waist interlining, a shoulder interlining, etc. SOLUTION: This garment interlining comprises (A) a polyester-based recyclable fixable resin or (B) a polyamide-based recyclable flexible resin. The polyester-based recyclable flexible resin A includes a polyetherester block copolymer comprising (i) a high melting point crystalline polymer segment consisting mainly of crystalline aromatic polyester units and (ii) a low melting point polymer segment consisting mainly of aliphatic polyether units. The polyamide-based recyclable flexible resin B includes a plyetheramide block copolymer comprising (iii) a high melting point crystalline polymer segment consisting mainly of crystalline polyamide units and (iv) a segment consisting mainly of the component ii.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garment core material which does not lose its shape due to washing or the like, has excellent softness and shape resilience, and contributes to protection of the global environment.

[0002]

2. Description of the Related Art Conventionally, as a core material used for a waist such as a collar, a slacks, and a skirt of a school uniform, a fiber nonwoven fabric, a sheet obtained by pressing a nonwoven fabric and polyurethane, and the like have been used. A core material composed of a sheet mainly composed of a nonwoven fabric or a nonwoven fabric is low in production cost, and is also practical because it has excellent temporary form retention, but it becomes difficult to retain the form when subjected to washing, Shape loss occurs. Especially,
In recent years, the number of washable wears has increased rapidly, and the demand for washing resistance has increased. Further, in order to maintain the form with the nonwoven fabric, a considerable pressure force or a binder is required, and as a result, only a hard feel is obtained.

In order to meet such demands, use of a flexible resin as a core material has recently been studied.

[0004]

The core material of a flexible resin is excellent in washing resistance, has a soft feeling, and is rich in shape resilience, so that the conventional problems can be solved to some extent. Flexible resin has a higher raw material cost compared to fiber materials, and is difficult to use for the entire core material.
Since it is a resin, it is extremely difficult to spontaneously decompose when discarded, and there is a problem that the regulation of disposal is strict because it requires a high temperature to burn.

The present invention has been made to solve the above-mentioned problems of the prior art, and provides a clothing core material which is free from shape collapse due to washing or the like, is excellent in soft feeling and shape resilience, and leads to protection of the global environment. .

[0006]

That is, the present invention employs the following means.

(1) A garment core material comprising a polyester or polyamide-based recycled flexible resin.

(2) The garment core material according to the above (1), wherein the garment core material is a stuffed collar core material.

(3) The garment core according to (1), wherein the garment core is a waist core.

(4) The garment core according to the above (1), wherein the garment core is a shoulder core.

(5) The polyester flexible resin comprises a high-melting crystalline polymer segment (a) mainly composed of crystalline aromatic polyester units and a low-melting polymer segment (b) mainly composed of aliphatic polyether units. The garment core according to the above (1), which is a polyetherester block copolymer as a main constituent.

(6) The polyamide flexible resin mainly comprises a high melting crystalline polymer segment (c) mainly composed of crystalline polyamide units and a low melting polymer segment (b) mainly composed of aliphatic polyether units. The clothing core material according to the above (1), which is a polyetheramide block copolymer as a component.

(7) A student garment using the stuffed collar core material described in (2) above.

(8) Slacks characterized by using the waist core material according to (3).

(9) A skirt using the waist core material according to (3).

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

Examples of the polyester-based soft resin in the present invention include a polyester composition obtained by kneading a polyester with a plasticizer, a polyester random copolymer, a polyetherester block copolymer and the like. Polymers are most preferred.

A method of kneading a plasticizer into a polyester resin, for example, a polyethylene terephthalate resin (hereinafter referred to as a PET resin) is preferable in terms of cost, but a considerable amount of the plasticizer is required to sufficiently soften the PET resin. Bleed out easily. As the plasticizer, a phthalate plasticizer or the like can be used.

The method using a polyester (random) copolymer is preferable because sufficient flexibility can be obtained. As the copolymer, a copolymer obtained by copolymerizing PET with another copolymer component at 20 mol% or less is preferable. Preferred copolymer components include adipic acid, sebacic acid, aliphatic dicarboxylic acids such as dimer acid, isophthalic acid, aromatic dicarboxylic acids other than terephthalic acid such as phthalic acid, and aliphatic diols other than ethylene glycol. .

The polyetherester block copolymer is most preferable because not only flexibility but also elasticity can be obtained.

The polyetherester block copolymer includes a high-melting crystalline polymer segment (a) mainly composed of crystalline aromatic polyester units and a low-melting polymer segment (b) mainly composed of aliphatic polyether units. And a high-melting crystalline polymer segment (a) is a polyester formed from an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol, and is preferably a polyester. It is a polybutylene terephthalate derived from terephthalic acid and / or dimethyl terephthalate and 1,4-butanediol. In addition, terephthalic acid, isophthalic acid, phthalic acid, naphthalene-2,6-dicarboxylic acid, naphthalene-2, 7-dicarboxylic acid, diphenyl-4,4'-dical Dicarboxylic acid components such as boric acid, diphenoxyethane dicarboxylic acid, 5-sulfoisophthalic acid, or an ester-forming derivative thereof, and a diol having a molecular weight of 300 or less, for example, 1,4-butanediol, ethylene glycol, trimethylene glycol, Pentamethylene glycol, hexamethylene glycol,
Aliphatic diols such as neopentyl glycol and decamethylene glycol, alicyclic diols such as 1,4-cyclohexanedimethanol and tricyclodecane dimethylol, xylylene glycol, bis (p-hydroxy) diphenyl, bis (p-hydroxy Phenyl) propane,
2,2-bis [4- (2-hydroxyethoxy) phenyl] propane, bis [4- (2-hydroxy) phenyl] sulfone, 1,1-bis [4- (2-hydroxyethoxy) phenyl] cyclohexane, 4,4'-dihydroxy-p-tert-phenyl, 4,4'-dihydroxy-
Polyesters derived from aromatic diols such as p-quater-phenyl and the like, or copolymerized polyesters using two or more of these dicarboxylic acid components and diol components in combination may be used. It is also possible to copolymerize a trifunctional or higher polyfunctional carboxylic acid component, a polyfunctional oxyacid component, a polyfunctional hydroxy component and the like in a range of 5 mol% or less.

The low-melting polymer segment (b) is an aliphatic polyether. Examples of the aliphatic polyether include poly (ethylene oxide) glycol, poly (propylene oxide) glycol, poly (tetramethylene oxide) glycol, poly (hexamethylene oxide) glycol, a copolymer of ethylene oxide and propylene oxide, and poly (propylene oxide). Ethylene oxide addition polymers of glycol, copolymers of ethylene oxide and tetrahydrofuran, and the like can be used. Among these aliphatic polyethers, poly (tetramethylene oxide) glycol and an ethylene oxide adduct of poly (propylene oxide) glycol are preferred in view of the elastic properties of the polyether ester block copolymer obtained.
Further, the number average molecular weight of these low melting point polymer segments is preferably about 300 to 6000 in a copolymerized state.

The copolymerization amount of the low melting polymer segment (b) is preferably 10 to 80% by weight, more preferably 15% by weight.
~ 75% by weight.

The polyetherester block copolymer used in the present invention can be produced by a known method. For example, a method of subjecting a lower alcohol diester of a dicarboxylic acid, an excessive amount of a low-molecular-weight glycol, and a low-melting polymer segment component to a transesterification reaction in the presence of a catalyst and subjecting the obtained reaction product to polycondensation, or a dicarboxylic acid and an excess amount A glycol and a low-melting polymer segment component are subjected to an esterification reaction in the presence of a catalyst, and a polycondensation of the obtained reaction product is performed.Also, a high-melting crystalline segment is prepared in advance, and the low-melting segment component is added thereto. Any method may be used, such as a method of adding and randomizing by an ester exchange reaction, a method of connecting a high melting crystalline segment and a low melting polymer segment with a chain linking agent.

The most preferred polyetherester block copolymer is a copolymer in which a polybutylene terephthalate segment and a polytetramethylene glycol segment are bonded, and is commercially available from Toray DuPont under the trade name "Hytrel". Is what it is.

The polyamide-based flexible resin used in the present invention includes a high-melting crystalline polymer segment (c) mainly composed of crystalline polyamide units and a low-melting polymer segment (b) mainly composed of aliphatic polyether units. Is a polyether amide block copolymer having as a main component.

The high melting crystalline polymer segment (c) is
Polyamide or polyamide copolymer obtained from lactam, diamine and dicarboxylic acid, or aminocarboxylic acid, or a mixture thereof, for example, nylon 4, nylon 6, nylon 10, nylon 11, nylon 12, nylon 46, nylon 66 , Nylon 61
0, nylon 612, nylon 6/66, nylon 6 /
12 and the like.

As the low melting point polymer segment (b) constituting the polyamide-based flexible resin, the same one as used for the polyester-based flexible resin can be used.

The most preferable polyamide-based flexible resin is a copolymer in which nylon 12 and polytetramethylene glycol are bonded, and is a product that is imported and sold by Toray Industries, Inc. under the trade name "Pebax".

The recycled flexible resin in the present invention is:
It means that the soft resin once melt-molded and used is recovered and melt-molded again. In this case, the product of the first molded article is not particularly limited, but since the flexible resin has various grades depending on the degree of flexibility, it is preferable that the flexible resin used for the same garment core material is recycled and used again. .

The garment core material in the present invention is used for a department which needs to keep the shape of the garment, for example, a core such as a collar, a shoulder or a waist. A waist is preferred. Although the shape of the clothing core material varies depending on the application site, the hardness is preferably Shore D5 to 35 and the thickness is preferably 1 to 5 mm.

[0032]

The clothing core material of the present invention has the following effects.

(1) Since a resin is used instead of a non-woven fabric, there is no loss of shape due to washing, and durability is ensured even when worn for a long time.

(2) Since a soft resin is used, it is excellent in softness and shape resilience, can be reduced in weight, and has no folding habit during transportation.

(3) The polyester-based flexible resin and the polyamide-based flexible resin are more expensive than the fiber material, but the cost can be reduced because the recycled resin is used.

(4) By recycling the resin without discarding it, it is possible to contribute to securing resources, and it is possible to prevent global environmental pollution due to burning or burying.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08G 69/40 C08G 69/40

Claims (9)

[Claims] 1. A garment core material comprising a recycled polyester or polyamide flexible resin. 2. The garment core according to claim 1, wherein the garment core is a stuffed collar core. 3. The garment core according to claim 1, wherein the garment core is a waist core. 4. The garment core according to claim 1, wherein the garment core is a shoulder core. 5. The polyester flexible resin mainly comprises a high melting crystalline polymer segment (a) mainly composed of crystalline aromatic polyester units and a low melting polymer segment (b) mainly composed of aliphatic polyether units. The garment core material according to claim 1, which is a polyetherester block copolymer as a constituent component. 6. The polyamide-based soft resin mainly comprises a high-melting crystalline polymer segment (c) mainly composed of a crystalline polyamide unit and a low-melting polymer segment (b) mainly composed of an aliphatic polyether unit. The garment core material according to claim 1, which is a polyetheramide block copolymer as a component. 7. A student garment using the stuffed collar core material according to claim 2. 8. Slacks using the waist core material according to claim 3. 9. A skirt using the waist core material according to claim 3.