JP2002194642A - Paper yarn woven/knitted fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper yarn woven/knitted fabric of extremely high productivity with the water absorbing and quick drying property in view of the background of the conventional art. SOLUTION: This paper yarn woven/knitted fabric comprises paper yarns each with the core of fibrous yarn covered with the sheath of fibrous paper, or paper yarns formed by blend twisting of fibrous yarns and fibrous paper together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woven or knitted fabric excellent in water-absorbing and quick-drying properties, and is suitably used for clothing such as sports, uniforms, interior materials and seat covers for car interiors. .

[0002]

2. Description of the Related Art In recent years, while a large number of products using natural materials as motifs have been put on the market, Japanese paper woven and knitted fabrics utilizing the quick-drying property of natural fibers have been receiving attention. As a manufacturing method, Japanese Patent Publication No. 2994209 already describes that a paper thread is formed by slitting and twisting Japanese paper and weaving and knitting the paper thread, but the thread is actually made of paper. Weaving and knitting often cause thread breakage, resulting in extremely poor productivity.
There were drawbacks such as high manufacturing costs.

Japanese Patent Publication No. 145428 discloses a method for weaving and knitting yarns and papers by aligning and twisting them with a sweet twist.
No. 5 has been reported, however, because the paper does not completely cover the yarn like a sheath, the water-absorbing and quick-drying properties are insufficient, and a yarn guide or the like is used in weaving and knitting. And the paper thread is caught, and the production cost is high.

[0004]

SUMMARY OF THE INVENTION In view of the background of the prior art, an object of the present invention is to provide a paper yarn woven or knitted fabric having very good productivity and quick drying.

[0005]

The present invention has the following arrangement to solve the above-mentioned problems.

[0006] A paper yarn in which a core made of a fibrous yarn is covered with a fibrous paper sheath, or a paper yarn woven or knitted fabric using a fiber yarn obtained by twisting a fibrous yarn and a fibrous paper . "

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The paper yarn woven / knitted fabric of the present invention requires a fibrous yarn as a core to prevent yarn breakage during weaving and knitting. This core yarn can be used without any particular limitation, such as synthetic fibers and natural fibers.

As the synthetic fibers, for example, polyester fibers are used, and polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate and the like are preferably used. Those copolymerized with other components are also preferably used, and as the other components, isophthalic acid, 5-sodium sulfoisophthalic acid, methoxypolyoxyethylene glycol and the like are preferably used.

The shape of the core yarn may be a filament yarn or a spun yarn. In the case of filament yarn, crimped processed yarn or "Lycra" with high ductility
By using such a core yarn, the texture as a woven or knitted fabric is firm and preferable. Further, along with polyester fibers, for example, polyamide, synthetic fibers such as polyacrylic,
It is also preferable to use semi-synthetic fibers such as acetate and rayon, regenerated fibers of polyester, and natural fibers such as wool, silk, cotton, bamboo, hemp, and kenaf.

In the present invention, it is necessary to completely cover the core yarn with a fibrous paper as the yarn sheath in order to have excellent water-absorbing quick-drying properties of the final product and to reduce the catch with the yarn guide during production. is there. Specifically, a paper yarn in which a core made of a fibrous yarn is covered with a fibrous paper sheath, or a paper yarn in which a fibrous yarn and a fibrous paper are mixed and twisted is used.

[0011] Here, the paper refers to a sheet made of paper or heat bonded or a sheet formed by winding the sheet, which is slit into a ribbon. As this material, synthetic fibers, natural fibers, and the like can be used without any particular limitation. As the synthetic fibers, polyester fibers are preferably used, and polyethylene terephthalate as described above is particularly preferably used. Further, those copolymerized with other components are also preferably used, and it is also preferable to use those copolymerized with other components or other synthetic fibers. Furthermore, it is preferable to use recycled paper as the paper on the sheath side in terms of effective use of resources.

In the production of paper, various functional substances can be added in order to impart deodorant and antibacterial functions to the final product.

[0013] For example, it is known to use an acrylic resin as a wet paper strength enhancer in the paper manufacturing stage. However, paper yarn in which an acidic functional group such as carboxylic acid or sulfonic acid is introduced into the resin as a functional group. By using, a paper yarn woven or knitted fabric having excellent deodorizing properties against basic malodors such as ammonia and trimethylamine can be obtained. In addition, by using a paper yarn with a basic functional group such as an amide group introduced into an acrylic resin as a wet paper strength enhancer, a paper yarn fabric that exhibits excellent deodorant properties against acidic malodors such as acetic acid and aldehyde. You can knit. In addition, in the paper manufacturing process, small activated carbon with a primary particle diameter of 5 μm or less, silica gel with a specific surface area of 100 m ² / g or more, calcium carbide, etc. are added to have various physical odor adsorption abilities. An excellent deodorant paper yarn woven or knitted fabric can be obtained. A paper yarn woven or knitted fabric that is highly effective in deodorizing sulfide-based odors such as methyl mercaptan by chelating divalent iron, zinc, copper, and silver on an acrylic resin as a wet paper strength enhancer It can be. Each of these methods is a deodorizing method that draws a bad smell to the paper yarn woven or knitted fabric.However, as a technology for eliminating the bad odor while attracting the bad odor to the paper yarn woven or knitted fabric, a material that exerts an effect as a photocatalyst is produced in the paper manufacturing process. It is preferable to add the compound of formula (1) because excellent deodorizing properties and antibacterial properties can be expected.

Here, the photocatalyst has a property of being excited by ultraviolet rays and oxidatively decomposing organic substances by a strong oxidizing power. Specifically, the photocatalyst has a crystal structure called anatase type, brookite type, or rutile type. Are included. The photocatalyst to be added does not need to be particularly limited, but is an apatite-coated photocatalyst coated with calcium phosphate or the like, which is a photocatalyst represented by anatase-type titanium dioxide in the sense of safety to the human body and prevention of decomposition of the paper itself. Alternatively, a photocatalyst comprising a composite oxide of titanium and silicon is preferable.

If the amount of the photocatalyst attached to the paper yarn woven or knitted fabric is too small, the decomposition rate of organic substances such as malodorous components decreases, and if the performance is not sufficient, if the amount is too large, the fiber fabric deteriorates due to the photocatalyst. The photocatalyst adheres to the fiber structure, because it tends to cause a hardening or texture and is not practical, and tends to generate odor due to decomposition of the fiber itself or binder due to oxidative decomposition of the photocatalyst. The amount is 0.01-30% by weight
Is preferred, more preferably 0.01 to 20% by weight,
0.01 to 10% by weight is more preferred.

Further, various functional substances can be added to impart functions such as antibacterial property and bacteriostatic property.

For example, in the present invention, it is also known to use an acrylamine-based resin as a wet paper strength enhancer in the paper production stage. And bacteriostatic properties. In addition, the same effect can be imparted when an inorganic antibacterial agent or a bacteriostatic agent typified by silver zeolite or the like is added in the paper production stage. Further, when a natural material is used for the paper on the sheath side of the paper thread, for example, deacetylated chitin (hereinafter, referred to as an antibacterial agent)
It is preferable to use a natural material such as chitosan) for disposal treatment. When polyester or nylon is used for the paper on the sheath side, it is very preferable to use 2-pyridylthiol-1-oxide zinc as a bacteriostatic agent that is easily exhausted by the synthetic fibers in terms of washing durability. The adhesion amount of the bacteriostatic agent is not particularly limited, but is preferably 0.01 to 30% by weight from the viewpoint of performance and cost, and 0.01 to 20% by weight.
% By weight, more preferably 0.01 to 10% by weight.

As a method for imparting functionality, a method for imparting functionality in the paper manufacturing stage is described above. In addition, a resin serving as a binder after producing a sheet of paper and the above-described photocatalyst, antibacterial agent, and bacteriostatic A method in which an agent is applied as a processing liquid by spraying and drying, or a so-called pad-dry method in which a processing liquid is prepared in a padding tank, a sheet of paper is padded and then dried, is also preferable. Further, at the stage when the paper thread is formed, the working liquid can be sprayed or padded, dried, and wound up. After forming into a woven or knitted product, it can be sprayed or padded and dried to obtain a product.

Further, in the paper yarn woven / knitted fabric of the present invention, it is possible to knit and knit a normal woven / knitted fabric using only the core-sheath-shaped paper yarn. In this case, the texture of the paper yarn mixed knitted fabric is excellent in water absorption and quick drying with a dry touch. The mixing ratio of the paper yarn is preferably 5% by weight or more, more preferably 1% by weight, based on the weight of the woven or knitted fabric, in order to obtain the effect of quick drying with water absorption.
0% or more.

The woven or knitted fabric of the present invention is a woven or knitted fabric having excellent water-absorbing and quick-drying properties. Therefore, it is suitably used as various wears such as tennis wear for sports use, sports towels, clothing use such as working uniforms, interior materials and seat covers for car interior parts.

[0021]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. The percentages and parts in the examples are on a weight basis unless otherwise specified. The quality evaluation in the examples was performed according to the following method. (Water absorption (dropping method)) Water absorption time was measured by JIS L-1018 A method dropping method. The smaller the value, the better the water absorption. (Washing) Automatic reversing spiral electric washing machine VH-3410
(Manufactured by Toshiba Corporation), commercial detergent 0.2%, temperature 40
Washing was carried out at ± 2 ° C. and a bath ratio of 1:50 with strong inversion for 5 minutes, and then, the operation of rinsing for 2 minutes while draining and overflowing was repeated twice, and this was defined as one washing. (Evaluation of deodorizing property by detection tube method) 50 containing 10 g of sample
A 0 ml container was filled with ammonia gas so as to have an initial concentration of 200 ppm, and the container was sealed. After standing for 1 hour, the residual ammonia concentration was measured with a gas detector tube. And it calculated as a deodorization rate (%) according to the following formula.

Deodorization rate (%) = [1- (concentration measured by gas detector tube) / (initial concentration)] × 100 In the same manner, 200 ppm of acetaldehyde, 1 hour later, 60 ppm of methyl mercaptan, 3 hours later, residual gas concentration Was measured, and the deodorization rate of each gas was calculated. (Odor evaluation of deodorizing property against tobacco odor) A 500 ml glass Erlenmeyer flask was placed with the entrance facing down, and a smoking cigarette was placed immediately below the entrance for 5 seconds. And sealed with a glass stopper. After leaving for 1 hour, the glass stopper was opened, and ten persons smelled the residual odor to perform a sensory evaluation. The odor at that time was evaluated by the following evaluation score, and the average value was obtained.

5: strong odor 4: strong odor 3: easy to detect 2: weak odor to know what odor 1: odor that can be finally detected 0: odorless (odor evaluation of odor prevention by isovaleric acid odor) 0 .01
5 μl of a 5% aqueous solution of isovaleric acid was weighed with a microsyringe, and five drops were dropped at the center of the cloth cut into a size of 10 cm × 10 cm. The method of dropping is 1 at the center of the fabric.
Four points were dropped just like the fifth point of the dice so as to surround the point and then one point in the center. After the cloth was left under a fluorescent lamp for 3 hours, ten persons smelled the smell of the cloth to perform a sensory evaluation. The odor at that time was evaluated by the following evaluation score, and the average value was obtained.

5: Intense smell 4: Strong smell 3: Easy to sense 2: Weak smell as to what kind of smell 1: Smell that can be finally sensed 0: No odor The test cells used were Staphylococcus aureus clinical isolates. The test method was as follows. The test bacteria were poured into a sterilized test cloth, the number of viable bacteria after culturing for 18 hours was counted, and the number of bacteria relative to the number of cultured bacteria was obtained.

Under the condition of log (B / A)> 1.5,
g (A / C) was defined as the difference in the increase or decrease in the number of bacteria, and 0 or more was regarded as a pass.

Here, A is the number of bacteria recovered and dispersed immediately after inoculation of the unprocessed product, B is the number of bacteria recovered and recovered after 18 hours of culturing of the unprocessed product, and C is the number of bacteria recovered and recovered after culturing the processed product for 18 hours. Represent. Example 1 82.5 dtex-36 on the core side of a paper yarn having a core-sheath structure
Using a polyester yarn of Fy and a paper yarn having a basis weight of 30 g / m ² and a width of 10 mm made of pulp on the sheath side, twisting the paper yarn with a twist of 200 T / m, the paper yarn was subjected to warping. , The warp density and the weft density are both 25
Through a normal weaving process at a number of books / inch, a paper yarn fabric was obtained.
The number of thread breaks during processing of this paper thread fabric, water absorption, quick drying,
The deodorant and antibacterial properties were evaluated and summarized in Table 1. Comparative Example 1 Twist was applied to the paper cut to a width of 10 mm used in Example 1.
The yarn was formed into a thread over 00 T / m and used as a warp and a weft. The warp density and the weft density were both 25 yarns / inch. Table 1 summarizes the number of yarn breaks, water absorption, and quick drying during processing of this paper yarn woven fabric. Comparative Example 2 A paper cut to a width of 10 mm used in Example 1 as in the case of the polyester yarn used in Example 1 was aligned to 100 T / m.
This is a paper yarn that has no core-sheath structure and is used as warp and weft, and both warp density and weft density are 2
After a normal weaving process at 5 yarns / inch, a paper yarn fabric was obtained. Table 1 summarizes the number of yarn breaks, water absorption and quick drying during processing of this paper yarn fabric. Example 2 The paper yarn woven fabric used in Example 1 was subjected to scouring, drying, intermediate setting, and dyeing with a reactive dye under ordinary processing conditions.

Further, an apatite-coated titanium oxide having an average primary particle diameter of 7 nm and an average specific surface area of 150 m ² / g was used as a water dispersion, and a photocatalyst having an average particle diameter of 0.3 μm was prepared using the following components. The aqueous solution of liquid A was used.

Silicone resin (concentration 45%) “BY22-826” manufactured by Toray Dow Corning Silicone Co., Ltd. 2.0% by weight Silane coupling agent (concentration 100%) “TSL-8350” manufactured by Toshiba Silicone Co., Ltd. 0 .2% by weight Apatite-coated titanium oxide (concentration: 25%) 2.0% by weight "Photocatalytic titanium oxide" manufactured by Showa Denko Co., Ltd. Dip the above-mentioned dyed paper thread into this and pick up with a mangle roll 80% by weight. After squeezing and drying at 120 ° C. for 2 minutes, heat treatment was performed at 180 ° C. for 1 minute to obtain a structure containing a photocatalyst on the surface of the paper yarn fabric. About this paper thread fabric, deodorant,
The antibacterial properties were evaluated and the results are summarized in Table 2. Example 3 A processing fluid obtained by replacing the photocatalytic functional titanium oxide, which is an apatite-coated titanium oxide of the processing fluid A of Example 2, with TR-T2, a composite oxide of titanium and silicon, manufactured by Daikyo Chemical Co., Ltd. The same processing as in Example 2 was performed using the aqueous solution of the liquid B. This paper thread fabric was evaluated for deodorant properties, antibacterial properties, and the like, and the results are summarized in Table 2. Example 4 Processing was carried out in the same manner as in Example 2 using an aqueous solution of a processing liquid C shown below to obtain a structure containing chitosan, a natural bacteriostatic agent, on the surface of a paper thread fabric.

Acrylic resin (concentration 40%) 2.0% by weight of “A-263” manufactured by Miki Riken Kogyo Co., Ltd. 2.0% by weight of “SA-50” manufactured by Takamatsu Yushi Co., Ltd. 2.0% by weight of this paper The yarn fabric was evaluated for deodorant properties, antibacterial properties, and the like, and the results are summarized in Table 2. Example 5 The antibacterial agent of Example 4 is easily exhausted by the synthetic fibers.
The same processing as in Example 2 was performed using an aqueous solution of the processing liquid D replaced with pyridylthiol-1-oxide zinc, and the surface of the paper thread fabric was treated with 2-pyridylthiol-1-, a bacteriostatic agent.
A structure containing zinc oxide was obtained. This paper thread fabric was evaluated for deodorant properties, antibacterial properties, and the like, and the results are summarized in Table 2. Example 6 A similar paper yarn woven fabric was obtained by replacing the polyester yarn in Example 1 with a processed yarn processed by an ordinary method, and further replacing the paper with recycled paper made of recycled pulp. The number of yarn breaks, water absorption and quick drying during processing of the paper yarn fabric were evaluated.
Summarized in Example 7 The same paper yarn woven fabric was obtained by replacing the polyester yarn in Example 1 with 85 dtex lycra yarn manufactured by Dupont Toray Co., Ltd., and further replacing the paper with paper made of bamboo fiber. The number of yarn breaks during processing of this paper yarn fabric, water absorption,
The quick drying properties were evaluated and summarized in Table 1. Example 8 Processing was carried out in the same manner as in Example 2 using an aqueous solution of a processing liquid E shown below to obtain a structure containing a photocatalyst and a bacteriostatic agent on the surface of a paper thread fabric.

Silicone resin (concentration 45%) “BY22-826” manufactured by Toray Dow Corning Silicone Co., Ltd. 2.0% by weight Silane coupling agent (concentration 100%) “TSL-8350” manufactured by Toshiba Silicone Co., Ltd. 0 1. 2% by weight Composite oxide of titanium and silicon (concentration: 20%) "TR-T2" manufactured by Daikyo Chemical Co., Ltd. 2.0% by weight Chitosan antibacterial agent "SA-50" manufactured by Takamatsu Oil & Fats Co., Ltd. 0% by weight The paper yarn fabric was evaluated for deodorant properties, antibacterial properties, and the like, and the results are summarized in Table 2. Example 9 Spraying was performed at the stage of forming a paper yarn using the working fluid E shown in Example 8, dried, and wound up to obtain a weft A.
In the woven specification of Example 1, weft A is 1
A 0% paper yarn woven fabric was formed. About this paper thread fabric,
The water absorption, quick drying, deodorant, antibacterial properties and the like were evaluated, and the results are summarized in Tables 1 and 2.

[0031]

[Table 1]

[0032]

[Table 2]

* Odor A: Ammonia Odor B: Acetaldehyde Odor C: Trimethylamine As is clear from Table 1, the product of the example has better production stability, better water absorption and faster drying than the comparative example. .

As is clear from Table 2, the products of Examples 2 and 3 exhibit a superior level of deodorizing function as compared with those of Comparative Examples. 3,
The product of No. 4 exerts an excellent level of bacteriostatic property as compared with that of the comparative example. Moreover, it can be seen that Example 8 is excellent in deodorant properties and bacteriostatic properties.

[0035]

According to the present invention, it is possible to provide a paper yarn woven or knitted fabric excellent in productivity and water-absorbing quick-drying property.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) D04B 21/00 D04B 21/00 B D21H 21/14 D21H 21/14 Z F term (reference) 4L002 AA05 AA07 AB03 AC00 EA05 FA01 4L036 MA04 MA05 MA33 MA37 MA39 PA21 PA46 RA25 UA26 4L048 AA07 AA21 AA56 AB19 AB37 AC09 AC15 CA07 DA03 DA25 4L055 AG18 AG19 AG53 AH50 BE10 EA14 EA32 FA22 FA30 GA50

Claims (10)

[Claims] A paper yarn in which a core made of a fibrous yarn is covered with a fibrous paper sheath, or a paper yarn obtained by using a fibrous yarn and a fibrous paper in a mixed twist. knitting. 2. The paper yarn woven or knitted fabric according to claim 1, wherein at least one of a photocatalyst or a bacteriostatic agent is attached to at least one of the yarn and the paper. 3. A paper woven or knitted fabric, wherein the photocatalyst according to claim 2 is apatite-coated titanium oxide. 4. A paper yarn woven or knitted fabric, wherein the photocatalyst according to claim 2 is a composite oxide of titanium and silicon. 5. The method according to claim 1, wherein the photocatalyst is contained in an amount of 0.0
The paper yarn woven or knitted fabric according to any one of claims 2 to 4, wherein 1% by weight or more and 10.0% by weight or less are attached. 6. A paper thread woven or knitted fabric, wherein the bacteriostatic agent according to claim 2 is deacetylated chitin. 7. A paper yarn woven or knitted fabric wherein the bacteriostatic agent according to claim 2 is 2-pyridylthiol-1-oxide zinc. 8. The method according to claim 1, wherein the bacteriostatic agent is contained in an amount of 0.0
The paper yarn woven or knitted fabric according to any one of claims 2, 6, and 7, wherein the paper yarn is attached at 1% by weight or more and 10.0% by weight or less. 9. The fibrous yarn as the core is a synthetic fiber processed yarn, and the fibrous paper as the sheath is recycled paper.
9. The paper yarn woven or knitted fabric according to any one of items 1 to 8. 10. A paper yarn woven or knitted fabric containing 10% or more of paper yarn based on the weight of the knitted fabric.