JPH10130975A - Fiber product comprising cellulosic fiber and polyester-based hollow fiber having modified cross section - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fiber product capable of improving high crease-proofing properties, pleat properties, wash-and-wear properties, puckering properties and preservation of pattern and further improving comfort when wearing without reducing the comfortable wearing feeling provided by the cellulosic fiber. SOLUTION: This fiber product is constituted of a cellulosic fiber improved by cross-linking by using a cross-linking agent and a polyester-based hollow fiber having a modified cross section. The polyester-based hollow fiber having modified cross section has six or more concave parts along the outer periphery thereof, and the whole surface area of the concave parts is at least 15% of the surface area of the circumcircle of the cross section of the fiber. Moreover, the fiber has 10-50 fine pores having 0.3-10μm pore diameter existing on the surface and/or communicating from the surface to the back surface per 100μm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber product composed of a cellulose fiber and a polyester-shaped hollow fiber, and has a shrinkproof property, a W & W property (wash and wear), a pleating property, and the like. The present invention relates to textiles suitable for use in clothing such as shirts, slacks, blouses and the like, and in hats, handkerchiefs, etc., which have improved puckering properties, improved shape retention properties, and improved wearing comfort. .

[0002]

2. Description of the Related Art Conventionally, there have been improvements in defects such as wrinkling and shrinkage of cellulosic fibers, puckering phenomenon (twitching phenomenon) caused by difference in elasticity between cloth sewing threads or cloth parts. It was strongly requested. Conventionally, the disadvantages of cotton have been improved by using synthetic fibers, especially polyester fibers, by using cellulose fibers, for example, cotton and synthetic fibers, particularly polyester fibers, in combination, and the advantages of cotton, such as bulkiness and moisture absorption. The level of blended products of cellulose-based fibers and polyester-based fibers has been measured by taking advantage of the properties and the strength, durability, and easy-care properties of polyester-based fibers. Furthermore, by recently cross-linking cellulose fibers in the state of sewn products,
There is an invention for imparting shrinkage resistance and permanent press characteristics of a cellulose fiber to a sewn product. (JP-A-4-352
868)

[0003]

SUMMARY OF THE INVENTION The aforementioned Japanese Patent Laid-Open Publication No. 4-35
In the invention of No. 2868, it has become possible to effectively impart shrinkage resistance and permanent press properties to a cellulose-based sewn product. However, as described above, by using cellulose-based fibers and polyester-based fibers in combination,
The shortcomings of each of the textile products due to the material of the fiber have been complemented and their advantages have been exhibited, and recently, the development of textile products by their combined use has become increasingly active. However, when a cellulose-based fiber and a polyester-based fiber are used in combination, the warm, comfortable, and bulky feel of the cellulose-based fiber due to the sliminess of the polyester-based fiber, for example, cotton, is lost, Alternatively, there is a problem in that the inside of the garment becomes stuffy during the wearing of the garment due to the hydrophobicity of the polyester fiber, so that the comfort during the wearing of the garment is not sufficiently exhibited.

[0004] In view of the above, the present invention provides a cellulose-based fiber by selectively blending a modified hollow polyester-based fiber with a crosslinked-modified cellulose-based fiber found as a result of intensive studies by the present inventors. For example, high wrinkle resistance and pleats, improved W & W and puckering properties, shape retention and comfort when worn, without compromising the comfortable feel of cotton such as dry touch, bulkiness and warmth. It is an object of the present invention to provide a fiber product comprising a cellulose-based fiber and a polyester-based modified hollow fiber having improved properties.

[0005]

In order to achieve the above object, the present invention firstly comprises a cellulose fiber and a polyester modified hollow fiber, and the cellulose fiber is treated with a crosslinking agent. The polyester modified hollow fiber which has been crosslinked and modified has at least six concave portions along its outer periphery, and the total area of the concave portions has a cross-sectional area of at least 15% of a circumscribed circle area of the fiber cross section. It is a hollow fiber and has a pore diameter of 0.3 to 0.3 which communicates from the fiber surface and / or surface portion to the back surface portion.
Micropores of 1.0 μm average 10 to 50 per 100 μm ²
A fiber product comprising a cellulose-based fiber and a polyester-based hollow fiber, wherein the hollow fiber is a modified hollow fiber. The second feature is that a fine hole communicating with the hollow portion is present in the concave portion present along the outer periphery of the polyester fiber, and the hollow ratio of the modified hollow fiber is 10% or more of the polyester fiber cross section. The present invention relates to a fiber product comprising the cellulose-based fiber and the polyester-shaped irregular hollow fiber according to the first aspect.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Cellulose fibers in a fiber product comprising cellulose fibers and modified polyester hollow fibers in the present invention include, for example, cotton, hemp, flax, pulp, bacterial cellulose fibers and the like. Regenerated cellulose fibers such as natural cellulose fiber, viscose method rayon (including polynosic), cuprammonium method rayon, solvent spinning method rayon, and the like. Not something. In the present invention, the modified polyester hollow fiber is one in which the main acid component is terephthalic acid or an ester-forming derivative thereof and the main glycol component is ethylene glycol, and the acid component is 20 mol% or less of oxalic acid. , Malonic acid, maleic acid, glutaric acid,
Aliphatic dicarboxylic acids such as adipic acid, sebacic acid, 1,4-cyclohexanedicarboxylic acid, 2,5-norbornanedicarboxylic acid or ester-forming derivatives thereof, phthalic acid, isophthalic acid, 5- (alkali metal) sulfoisophthalic acid , Diphenic acid, 1,4-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 1,2-bis (phenoxy) ethane-p. An aromatic dicarboxylic acid such as p-dicarboxylic acid or an ester-forming derivative thereof can be contained as a copolymer component. The acid component 20
Up to mole% of oxycarboxylic acids such as p- (2-hydroxyethoxy) benzoic acid or ester-forming derivatives thereof may also be included.

[0007] The glycol components include propylene glycol, diethylene glycol, neopentyl glycol, 1,4-butanediol, 1,6-hexanediol, and 1,4-cyclohexanediol of not more than 20%. Methanol,
1,10-decamethylene glycol, 4,4-dihydroxybisphenol, 1,4-bis (β-hydroxyethoxy) benzene, 2,5-naphthalenediol Ethylene oxide is added to these glycols Glyco-
, Polyethylene glycol and the like. Examples of the combined use of the cellulose-based fiber and the polyester-shaped hollow fiber include spun yarn, woven fabric, knitted fabric, and non-woven fabric obtained by blending, blending, weaving, twisting and the like. These fibrous structures can be exposed, pre-dyed, anti-dyed or printed. The mixing ratio of the cellulose-based fiber and the polyester-shaped modified hollow fiber is preferably 90:10 to 10:90, and more preferably 80:20 to 20:80.

In the present invention, the term "fiber product" refers to a woven fabric, a knitted fabric, a nonwoven fabric or the like using the mixed fiber and a sewing such as a shirt, a slacks, a blouse, a hat, a handkerchief, an interlining or the like obtained by using the fabric. Goods. The outline of the polyester modified hollow fiber used in the present invention is as follows. That is, along the outer circumference of the polyester fiber, 6
It is a modified hollow fiber having at least 15 concave portions, the total area of the concave portions having a cross-sectional area of at least 15% of the circumscribed circle area of the fiber cross-section, and a pore diameter of 0. It is a polyester-type irregular hollow fiber having an average of 10 to 50 micropores per 100 μm ² having 3 to 1.0 μm micropores. Further, there is a fine hole communicating with the hollow portion in the concave portion present along the outer periphery of the fiber, and the hollow fiber has a hollow ratio of 10% or more of the cross section of the polyester fiber. To provide. It is essential that the concave portions on the outer periphery of the fiber and the fine pores on the surface of the fiber coexist in order to impart water absorbing performance to the fiber by capillary action. It has been recognized that the concave portions on the outer periphery of the fiber and the fine pores on the surface of the fiber alone have a certain effect. What is important in providing water absorption performance is that the water absorption speed and the water absorption amount need to be set so as to meet the purpose of the present invention. The water absorption rate depends on the fine structure of the fiber surface. According to the research results of the present inventors, micropores having a pore diameter of 0.3 to 1.0 μm are formed on the fiber surface per 100 μm ² ,
There must be 10 to 50 on average. If the pore diameter is less than 0.3 μm, the pore size is too small, and both the water absorbing effect and the tactile effect for imparting a dry feeling are low. On the other hand, when the diameter of the fine pores exceeds 1.0 μm, the tactile effect is remarkably reduced, which is not preferable. On the other hand, if the number of the micropores is less than 10, both the water absorbing property and the tactile property are undesirably reduced. The number of micropores is preferably as large as possible, but is limited to 50 in view of the size of the micropores and the technical difficulty of providing the micropores.
Further, in order to achieve the object of the present invention, it is necessary that six or more concave portions on the outer periphery of the fiber exist along the outer periphery of the fiber, and the size thereof is related to the amount of water absorption, and 15% or more of the whole fiber is required. . If the number of recesses on the outer periphery of the fiber is less than 6, the bulkiness and gloss of the fiber are reduced, and the object of the present invention cannot be achieved. Preferably, the number is about 8 to 10. Also, the total area of the concave portion needs to be 15% or more of the circumscribed circle area of the cross section. If the total area is less than 15%, there is no problem at normal times, but the effect is remarkably reduced when sudden sweating occurs during exercise or the like. Further, it is essential that the fiber shape be a hollow fiber from the viewpoint of imparting warmness, tension and stiffness, and the hollow ratio is preferably 10% or more, more preferably 15% or more. In order to impart a high level of water absorption performance, it is more preferable that a concave portion present on the outer periphery of the fiber has a fine hole communicating with a hollow portion existing at the center of the fiber. In this case, the diameter of the fine holes is 0.3 to 1.0 μm as described above.
m. Also in this case, if it is less than 0.3 μm, the contribution to the improvement of the water absorption property is small, and if it exceeds 1.0 μm, the water retention is undesirably affected. The method for producing the modified hollow fiber used in the present invention is not particularly limited. For example, a so-called C-type nozzle having a C-shaped fine hole in a spinneret is used, and polyethylene glycol incompatible with polyester is used. There is a method of mixing and spinning.

In the method of crosslinking cellulose fibers used in the present invention, the textile product is sewn and then subjected to crosslinking treatment with gas-phase formaldehyde for the purpose of imparting W & W properties and wrinkle resistance. After applying a compound capable of cross-linking with cellulose in the state of fabric or a reaction thereof and a reaction catalyst thereof, the textile is sewn and post-cured by heat treatment, or cross-linkable with cellulose in the state of cloth. A pre-curing process in which a compound and its reaction catalyst are applied and curing is performed, or a textile product is sewn, and then a compound and a catalyst capable of crosslinking with cellulose are sprayed in a rotating drum, followed by pressing and curing. -Ment spray method, etc., and any of them may be used, and the present invention is not limited to these.

[0010]

EXAMPLES Examples are shown below together with comparative examples of the present invention.
The present invention is not limited to this.

[0011]

Example 1 An intrinsic viscosity of 0.7 and an average particle diameter of 0.3 μm
m-kaolinite in 2.0% by weight of polyester terephthalic acid, 3 mol% of 5-sodium sulfoisophthalic acid, and in the following general formula (1), R is 2.2-dimethylpropylene group and i, 13% by weight of a polyethylene glycol having a molecular weight of 20,000 was blended with a polyester having an intrinsic viscosity of 0.46 obtained by copolymerizing 3% by weight of a glycol in which j is 2 and a value of (m + n) of 5 was 5%. Polymer
Are blended in a weight ratio of 5: 1, spun at 270 ° C. using a C-type nozzle, and stretched in a conventional manner to give 75 denier.
A 36 filament drawn yarn was obtained. The hollow ratio of this fiber was 18%. The raw yarn was scoured by a conventional method, set, subjected to alkali weight reduction processing with an alkali solution, eluted at 38% by weight, and then subjected to spinning spinning. Then, the mixture with cotton is mixed with cotton / polyester modified hollow fiber at a mixing ratio of 50/50.
It was made to become. Thereafter, a spun yarn having a cotton count of 45 was used, and this yarn was used as a warp and a weft to produce a woven fabric of 136 warp / inch, weft, and 72 warp / inch.

[0012]

Embedded image HO— (CiH ₂ iO) _m R—O— (CjH ₂
jO) _n H

Using this cloth, a shirt was sewn. Subsequently, the cotton portion was subjected to a cross-linking treatment by a method using a formaldehyde aerosol mist described in JP-A-4-352868. The obtained shirt was subjected to the following tests, and the evaluation results are shown in [Table 1].

[0014]

[Table 1] (1) Water absorption speed: The above shirts were stacked in three layers in an atmosphere of 20 ° C. and RH of 60%, 0.3 cc of tap water was dropped, and the time until water droplets disappeared from the fiber surface was measured to obtain the water absorption speed.
The average of three measurements was determined. (2) Water absorption: The shirt was immersed in tap water for 5 minutes in an atmosphere of 20 ° C., absorbed sufficiently, dehydrated at 1500 G for 10 minutes with a centrifugal dehydrator, and the weight increase due to water absorption was measured. Expressed as a percentage by weight. (3) Number of micropores: The presence or absence of micropores communicating with the hollow portion inside the polyester fiber using only the polyester fiber before blending with the cotton obtained by the above method is determined by the fiber whose both ends are sealed by fusion. The total volume of the micropores in the fiber determined by the mercury intrusion method into the fiber was measured, and the volume calculated from the concave area of the fiber surface calculated from the scanning electron micrograph of the fiber cross section and the sample length was compared. Judged. (4) Tactile characteristics and feeling characteristics: Tactile characteristics (dry feeling, warmness) and feeling characteristics (tension, stiffness) were determined by a sensory test, and evaluated in the usual three grades of ○, Δ, and ×. The woven fabric obtained in Example 1 has a dry and warm touch and excellent bulkiness, and has both a tight, stiff texture and excellent water absorption properties, and impairs the natural texture and water absorption properties of cotton. There was no shirt. (5) Anti-wrinkle property when dried: JIS L 1059-85-6.
Section 2 Method B Measured according to section 6.2.2 (1) (a). (6) Wrinkle resistance when wet: JIS L 1059-85-6.
Section 2 Method B Measured according to Section 6.2.2 (2) (a). (7) Pleatability: 7.3 of JIS L 1060-87
The evaluation was based on the C method described in the section.

[0015]

Example 2 A fabric was obtained in exactly the same manner as in Example 1 except that the rate of weight loss by the alkaline solution was 20%. The tactile sensation and texture of the shirt obtained by treating in the same manner as in Example 1 were obtained in Example 1.
But water absorption tended to be slightly inferior. This is because there is no micropore communicating with the hollow portion inside the polyester fiber.

[0016]

Comparative Example 1 Example 1 except that the fiber cross-sectional shape was solid.
And the fibers obtained therefrom were evaluated in the same manner. The tactile sensation and water absorption were the same as in Example 2, but only a shirt with poor tension and stiffness was obtained.

[0017]

Comparative Example 2 A shirt was sewn in exactly the same manner as in Example 1 except that a polymer containing no kaolinite was used as the polyester, and evaluation was performed in the same manner. , 2 were obtained.

[0018]

The effects of the present invention are summarized as follows. In the fiber product comprising the cellulose fiber and the modified polyester hollow fiber of the present invention, the natural texture, tactile sensation, and water absorption properties of the combined use of the modified cellulose fiber and the modified polyester hollow fiber are impaired. In addition, it is comfortable without stuffiness even when worn, has high anti-wrinkle property and pleated property, and the effect of improving W & W property and puckering property is remarkable.

Claims (2)

[Claims] 1. A cellulose-based fiber and a polyester-shaped hollow fiber, the cellulose-based fiber being cross-linked and modified by a cross-linking agent, and six polyester-shaped hollow fibers along the outer periphery thereof. A modified hollow fiber having the above-mentioned concave portion, and the total area of the concave portion having a cross-sectional area of at least 15% of a circumscribed circle area of the fiber cross-section;
Or, a hole diameter of 0.3 to 1.0 μm communicating from the front surface to the back surface.
A fiber product comprising a cellulose-based fiber and a polyester-based hollow fiber, wherein the hollow fiber has an average of 10 to 50 micropores per 100 µm ² . 2. The method according to claim 1, wherein a micropore communicating with the hollow portion exists in a concave portion present along the outer periphery of the polyester fiber, and a hollow ratio of the modified hollow fiber is 10% or more of a cross section of the polyester fiber. A fiber product comprising the cellulose fiber according to claim 1 and a polyester modified hollow fiber.