JP2001032177A - Adhesive padding fabric for water-repellent-finished fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject fabric favorably adhesive to a water-repellent- finished fabric by scattering an adhesive based on resin(s) having respective specified ranges of melting point and weight-average molecular weight such as of polyester, polyurethane and/or polyamide, on a base. SOLUTION: This adhesive padding fabric for water-repellent-finished fabrics is obtained by scatteringly coating, using a hot-melt coater or the like, a base fabric such as a woven or nonwoven fabric of polyester, nylon or acrylic fibers with an adhesive based on at least one resin selected from those of polyester, polyurethane and polyamide and having a melting point of 50-80 deg.C and weight- average molecular weight of >=50,000, pref. >=100,000.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive and an adhesive interlining suitable for adhering a water-repellent cloth. In particular, the present invention relates to an adhesive interlining having an adhesive interspersed in a base cloth and having good adhesion to a water-repellent cloth.

[0002]

2. Description of the Related Art Clothing having water repellency that does not allow water droplets such as rainwater to soak from its surface is used in various fields from raincoats to hats. In general, an adhesive interlining is widely used for imparting shape retention and sewing properties to a fiber material. These fiber materials pursuing human comfort and fashionability have already become indispensable to human life. However, it is extremely difficult to apply the adhesive interlining to the above-mentioned water-repellent material. Means of providing a water-repellent material are application of a silicon-based fiber treatment agent, sewing or lamination of a water-repellent fluorine-based fiber material, but trying to adhere to another fiber material like an adhesive interlining. In this case, the adherence of the water-repellent material is low and the means is not easy.

[0003] For example, as proposed in Japanese Patent Application Laid-Open No. 60-65183, by subjecting the bonding surface of a water-repellent cloth to low-temperature plasma treatment, one side has water repellency,
On the other side, there is a means for improving the adhesiveness, but the plasma treatment is still expensive and requires a complicated process. If the adhesive surface also requires water repellency, the water repellency is reduced.

As an improvement means from the side of the adhesive interlining, an adhesive interlining which laminates an adhesive on the entire surface of the material is used.
Adhesion can be increased. However, even if the release paper is coated once and then applied to the fiber, or if the fiber is directly coated as a solution or dispersion, the cost of the process is not negligible and increases. In addition, by applying an adhesive to the entire surface, the texture, which is an important property of the fiber, is often lost.

As described above, the prior art has not proposed a combination of a water-repellent cloth and an adhesive interlining that satisfies various characteristics.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides an adhesive interlining suitable for adhering a water-repellent cloth, particularly an adhesive interposer in which an adhesive is scattered on a base cloth. It is an object of the present invention to provide an adhesive interlining having good adhesion to a water-repellent cloth on the ground.

[0007]

In order to achieve the above object,
The present inventors have conducted intensive studies and have come to propose the following invention.

That is, according to the present invention, the melting point of the resin is 80 ° C. or less,
An adhesive interlining for a water-repellent cloth, wherein an adhesive having a weight-average molecular weight of 50,000 or more and containing at least one resin selected from the group consisting of polyester, polyurethane and polyamide is scattered on a base fabric. It is.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The adhesive for an adhesive interlining according to the present invention has a resin having a melting point of 80 ° C. or less and a weight average molecular weight of 50,000.
The above is not particularly limited as long as one or more resins of polyester, polyurethane, and polyamide are used as a main component.
A melting point of 0 ° C. or higher is desirable. When the melting point is 80 ° C. or less, the resin easily penetrates into a water-repellent cloth that is difficult to penetrate the resin. Further, when the weight average molecular weight is 50,000 or more, surprisingly high adhesiveness is exhibited even with slight penetration. More preferably, the weight average molecular weight is 100,000.
That is all. At this time, the cohesive strength of the resin is further increased, and the adhesiveness is further improved. If the weight molecular weight is less than 50,000, the cohesive strength may be insufficient and sufficient adhesive strength may not be exhibited. If the resin is used as a main component, an additive such as silica gel may be contained as a lubricant.

The polyester used in the present invention includes, as dibasic acid components, aromatic dibasic acids such as terephthalic acid, isophthalic acid and orthophthalic acid, adipic acid, azelaic acid, sebacic acid, 1,4-cyclohexanedicarboxylic acid, Examples thereof include aliphatic and alicyclic dibasic acids such as dimer acid. Further, as the glycol component, ethylene glycol-
Propylene glycol, 1,3-propanedio-
, 2-methyl-1,3-propanediol, 1,4-
Butanediol, 1,5-pentanediole, 1,6-
Hexanediol, 3-methyl-1,5-pentanediol, neopentyl glycol, diethylene glycol
, Dipropylene glycol, 2,2,4-trimethyl-1,3-pentaneddiol, cyclohexanedimethanol, tricyclodecanedimethanol, neopentyl hydroxypivalate, ethylene oxide of bisphenol A Adducts and propylene oxide adducts, ethylene oxide adducts and hydrogenated bisphenol A adducts of propylene oxide, 1,9-nonanediol, 2-methyloctanediol, 1,10-dodecanediol, 2-butyl- Low molecular weight diols such as 2-ethyl-1,3-propanediol and tricyclodecane dimethanol are exemplified, and among these, 1,4-butanediol and 1,6-hexanediol are preferable for maintaining crystallinity. .

Examples of high molecular weight diols include polyether polyols such as polyethylene glycol, polypropylene glycol and polytetramethylene glycol, and polyester polyols such as polycaprolactone and polycarbonate diol.
Polycaprolactone is preferred. In particular, it is preferable that polycaprolactone is not combined with a dibasic acid but is used alone to form a polyester in order to maintain high crystallinity.

In the polyurethane used in the present invention, examples of the polyol component include the polyether polyols and polyester polyols described above as the constituent components of the polyester. In particular, polycaprolactone having a low melting point and high crystallinity is preferable in order to compensate for a decrease in crystallinity due to urethanization. Examples of the chain extender include the glycols shown as the constituent components of the polyester. Examples of the isocyanate component include 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, p-phenylene diisocyanate, diphenylmethane diisocyanate, and m-phenylene diisocyanate. G, hexamethylene diisocyanate, tetramethylene diisocyanate
3,3'-dimethoxy-4,4'-biphenylenediisocyanate, 1,5-naphthalenediisocyanate
G, 2,6-naphthalenediisocyanate, 3,3′-
Dimethyl-4,4'-diisocyanate, 4,4'-diisocyanatodiphenyl ether, 1,5-xylylenediisocyanate, 1,3-diisocyanatomethylcyclohexane, 1,4-diisocyanate Methylcyclohexane, 4,4'-diisocyanatocyclohexane, 4,4'-diisocyanatocyclohexylmethane, isophorone diisocyanate and the like can be mentioned, but yellowing often causes a problem in textile applications. Hexamethylene diisocyanate and isophorone diisocyanate, which are aliphatic and alicyclic diisocyanates, are preferred. A polyurethane obtained by reacting the above polyol, chain extender, and polyisocyanate so that the OH / NCO ratio becomes 1 or more is preferably used.

The polyamide used in the present invention includes copolymerized polyamides obtained by combining polyamide constituent units such as nylon 6, 66, 610, 11, 12 and the like.

Further, the adhesive of the present invention is applied to a completely conventional hot-melt adhesive such as a melt-application by a hot-melt coater, a powder dot application, or an aqueous paste application in order to disperse the adhesive on a base cloth. Can be applied in any way. By applying the adhesive composition of the present invention to the base fabric in this manner, an adhesive interlining can be obtained.

As the base fabric of the adhesive interlining of the present invention, known fabrics such as woven fabrics and nonwoven fabrics of polyester, nylon, acrylic and the like can be used.

[0016]

The present invention will be specifically illustrated by the following examples. In the examples, “parts” means “parts by weight”.

<Description of Abbreviations> The abbreviations are as follows. Polyester (A): polycaprolactone, number average molecular weight 4,000, melting point 60 ° C. Polyester (B): terephthalic acid / adipic acid //
1,6-hexanediol (75/25 // 100 molar ratio, number average molecular weight 6,000, melting point 120 ° C.) BD: 1,4-butanediol NPG: neopentyl glycol HDI: hexamethylene diisocyanate

<Synthesis Example 1 of Polyester> In a reaction vessel equipped with a thermometer, a stirrer, a reflux condenser, and a distillation tube,
100 parts of e-caprolactone, 0.21 part of neopentyl glycol and 0.01 part of tetrabutyl titanate were charged and reacted at 180 ° C. for 240 minutes to obtain polycaprolactone as a crystalline polyester (1). Table 1 shows the properties of the crystalline polyester. In Table 1, the weight average molecular weight was measured by gel permeation chromatography using tetrahydrofuran as a solvent and polystyrene as a standard sample. A 0.03 g sample was prepared by dissolving a polyester resin in 10 ml of tetrahydrofuran. Melting point: Seiko Denshi Kogyo Co., Ltd. DSC220 type, 20 ° C
/ Min was measured at a heating rate of / min.

<Synthesis Examples 2-3 of Polyester> As in the case of the polyester (1), e-caprolactone, neopentyl glycol and tetrabutyl titanate were charged in appropriate amounts.
The reaction was carried out at 180 ° C. for 240 minutes to obtain polycaprolactone having various molecular weights as crystalline polyesters (2) to (3). Table 1 shows the properties of the crystalline polyester.

<Synthesis Example 4 of Polyester> Dimethyl terephthalate was placed in the same reaction vessel as polyester (1).
90 parts, 190 parts, and 0.1 part of 1,4-butanediol and tetrabutyl titanate were charged, 180 parts, respectively.
A transesterification reaction was carried out for 5 hours while distilling off methanol generated at ~ 230 ° C outside the system. Then, 17
After cooling down to 0 ° C., 115 parts of sebacic acid was charged,
While distilling water generated at 180 to 230 ° C out of the system,
The esterification reaction was performed for 1 hour. After confirming that the calculated amounts of methanol and water had been distilled off, the reaction system was gradually cooled to 0.3 mmH.
g, and a polycondensation reaction was performed at 250 ° C. for 45 minutes to obtain a crystalline polyester (4). Table 1 shows the properties of the crystalline polyester.

[0021]

[Table 1]

<Synthesis Example 1 of Polyurethane> In a reaction vessel equipped with a thermometer, a stirrer, and a reflux condenser, 100 parts of polycaprolactone having a number average molecular weight of 4000, 5 parts of neopentyl glycol, and 12 parts of hexamethylene diisocyanate. , 0.01 part of dibutyltin laurate was charged,
The reaction was carried out at 120 ° C. for 120 minutes to obtain a crystalline polyurethane (1). Table 2 shows the properties of the crystalline polyurethane.

<Synthesis Example 2 of Polyurethane> A number average molecular weight of 600 was placed in the same reaction vessel as used for the synthesis of polyurethane (1).
0 polyester polyol (terephthalic acid / adipic acid // 1,6-hexanediol = 75/25 // 10
0 mol ratio, melting point: 120 ° C.), 100 parts of neopentyl glycol, 13 parts of hexamethylene diisocyanate, and 0.01 part of dibutyltin laurate.
The reaction was carried out at 30 ° C. for 120 minutes to obtain a crystalline polyurethane (2). Table 2 shows the properties of the crystalline polyurethane.

[0024]

[Table 2]

Example 1 100 parts of the crystalline polyester (1) obtained in Synthesis Example 1 of polyester and 0.1 part of Aerosil # 300 (manufactured by Nippon Aerosil Co., Ltd.) were added.
Freezer Mill (SPEX industries,
Inc. “6750”) was frozen and pulverized together with liquid nitrogen to obtain a fine powder having a particle size of 250 μm or less. This one
The number of dots in one row per inch is 15 on a screen with a polyester interlining (70 g / m ² ).
g / m ² , and was temporarily attached in an oven at 120 ° C. for 10 seconds to 1 minute. After the tacking, the polyester interlining (100
g / m ² ) at 300 ° C. for 15 seconds at 130 ° C.
Ironed with a pressure of cm ² . One day after the adhesion, the adhesiveness was evaluated as T peel strength at a pulling speed of 100 mm / min. Table 3 shows the results.

<Examples 2 to 3> Fine powders were obtained by freeze pulverization in the same manner as in Example 1 using the resins described in Table 2/1, and the peel strength was evaluated. Table 3 shows the results.

[0027]

[Table 3]

<Comparative Examples 1 to 3> Using the resins shown in Table 4, fine powders were obtained by freeze-pulverization in the same manner as in Example 1, and the peel strength was evaluated. Table 4 shows the results. In Examples, good adhesion was obtained, but in Comparative Examples, good adhesion was not exhibited.

[0029]

[Table 4]

[0030]

As described above, the adhesive of the present invention can be used as an adhesive interlining suitable for adhering a water-repellent cloth, particularly as an adhesive interlining in which the adhesive is scattered on a base cloth. To provide an adhesive interlining having good adhesiveness.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) D06M 15/564 A41D 27/06 H // A41D 27/06 D06M 15/507 Z F-term (Reference) 3B035 AA25 AB17 AC10 4J040 ED031 EF001 EF111 EF131 EG001 JA05 JA07 JB01 LA01 LA06 LA07 LA08 MA10 NA11 4L033 AC03 AC11 CA45 CA50 CA55

Claims (2)

[Claims] 1. A water-repellent cloth, characterized in that the main component is a resin of at least one of polyester, polyurethane and polyamide, wherein the resin has a melting point of 80 ° C. or less and a weight average molecular weight of 50,000 or more. adhesive 2. An adhesive interlining for a water-repellent cloth, wherein the adhesive according to claim 1 is scattered on a base cloth.