JP2000136481A - Fabric and bags - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a fabric having durable antimicrobial-deodorizing activity, odor-eliminating function, water-repelling function, moisture permeability and waterproofness by imparting a specified inorganic compound and aromatic polyamine to the surface of a fabric containing a specified polyamide synthetic fiber. SOLUTION: This fabric is obtained by sticking 0.05-35 wt.% (based on the weight of the fiber) of at least one inorganic compound selected from copper, zinc, silicon and titanium and 0.01-15 wt.% of an aromatic polyamine, e.g. a reaction product of xylenediamine and propylene glycol on the surface of fabric containing at least a polyamide synthetic fiber containing 0.1-1.0 wt.% of a mixture of zirconium phosphate and silver oxide via a synthetic resin of urethane, acryl or the like. The obtained fabric has a hydraulic pressure resistance of 250 mm or more, a moisture permeability of 1,000 g/m2.24 hr or more and a water repellency point of 80 or more after 5 repeated washing at home.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to durable fabrics and bags excellent in antibacterial deodorization, deodorization, water repellency, moisture permeability and waterproofness.

[0002]

2. Description of the Related Art Conventionally, polyamide fibers have been widely used from sports applications to industrial materials because of their mechanical properties such as excellent strength. In addition, many products with functionality such as water repellency, moisture permeability, and antibacterial performance have been developed.However, products that are durable and have both water repellency, moisture permeability, antibacterial, and deodorant properties have been developed. Absent.

[0003] In particular, food stores such as department stores, supermarkets and general retailers use shopping bags made of polypropylene or polyethylene at present, and are generally disposable. Since the above shopping bags are disposable, they have environmental problems such as increased garbage, waste and incineration.
There is also a problem with hygiene.

Similarly, it is essential for future sports bags and sleeping bags to be resistant to water, resistant to stuffiness, and sanitary.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a durable antibacterial, deodorant, deodorant, water repellent, moisture permeable, waterproof fabric and bags. More specifically, it suppresses the growth of harmful bacteria such as Staphylococcus aureus and 0-157, and is deodorant and water resistant to malodors such as ammonia, amines, hydrogen sulfide, mercaptans, aldehydes, acetic acid and pyridine. An object of the present invention is to provide a fabric and bags suitable for a shopping bag, a sports bag, and the like, which prevent leakage and wetness.

[0006]

The cloth of the present invention for achieving the above-mentioned object comprises a cloth containing at least a polyamide-based synthetic fiber, and the surface of the cloth is selected from copper, zinc, silicon and titanium. At least one inorganic compound and an aromatic polyamine are attached via a synthetic resin.

In the above fabric, the polyamide fiber preferably contains a mixture of zirconium phosphate and silver oxide in an amount of 0.1% or more and less than 1% based on the total weight of the polyamide fiber.

In the above-mentioned cloth, the water pressure resistance is 250.
mm or more, the moisture permeability is 1000 g / m ² · 24 hrs or more,
Further, it is preferable that the water repellency after home washing 5 times is 80 points or more.

Further, the above-mentioned cloth is preferably used for bags, and the bags are preferably selected from food shopping bags, sports bags, and sleeping bags.

[0010] Further, the above-mentioned cloth is preferably used for a lining of bags, particularly a lining of shopping bags or sports bags.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The polyamide synthetic fibers referred to in the present invention include polyε caprolactam represented by nylon 6, copolymer of adipic acid and hexamethylenediamine represented by nylon 66, nylon 12, and the like. And modified nylons obtained by copolymerizing a third component with these nylons, but are not limited thereto.

The inorganic compounds used in the present invention include metal oxides such as copper, zinc, silicon and titanium, hydroxides, chlorides, and the like.
Inorganic acid salts such as sulfates and nitrates, acetates, citrates or zeolites, silica gel, activated carbon and the like. It is preferable to include a multi-hard material and at least one compound of copper and zinc in order to enhance the deodorizing effect.

The content of the inorganic compound is preferably as large as possible from the viewpoint of deodorizing properties.
% By weight is preferred. If the content is less than 0.05% by weight, it is difficult to obtain a sufficient deodorizing effect, and 35% by weight.
If it is larger than this, the retention of the object to be treated is weakened, and the inorganic compound is liable to fall off due to physical force, thereby impairing the value as a product.

The aromatic polyamine used in the present invention refers to, for example, a compound obtained by a dehydration reaction of an amine compound such as xylene diamine or phenylenediamine with an alcohol such as ethylene glycol or propylene glycol.

Usually, the content of the aromatic polyamine is preferably about 0.01 to 15% by weight based on the weight of the fabric. If the content is less than 0.01% by weight, it is difficult to obtain a sufficient deodorizing effect on aldehyde odor. In the case of the bags of the present invention, 0.05 to 10% by weight is more preferable.

It is preferable that the inorganic compound and the aromatic polyamine of the present invention adhere to the cloth surface via a synthetic resin binder.

As the synthetic resin binder, various resin agents such as urethane type, acrylic type, epoxy type, vinyl chloride type, vinyl acetate type, fluorine type, silicon type, polyamide type, polyester type and glyogizal type can be selected. In consideration of texture, durability and the like, urethane or acrylic resins are preferably used. Techniques such as padding, coating, spraying, and printing can be applied as a method of applying to the fabric. The coating or printing method is particularly preferable in terms of uniformity, processing stability and the like. After the inorganic compound is applied to the fabric in order to increase the durability, a dry heat treatment at 80 to 190 ° C. is preferable. 80 ℃
If the temperature is lower than this, the durability is reduced. On the other hand, if the temperature is higher than 190 ° C., the fabric is yellowed and the texture becomes hard.

The mixture of zirconium phosphate and silver oxide contained in the polyamide fiber used in the present invention imparts antibacterial performance to the fiber itself, and may be directly blended with the polyamide fiber polymer. The preferable addition amount is 0.1% by weight or more and less than 1% by weight, particularly preferably 0.2% by weight or more and 0.7% by weight based on the weight of the polyamide fiber.
Is less than. If the amount is less than 0.1% by weight, it is difficult to obtain sufficient antibacterial performance. If the amount is more than 1% by weight, problems such as deterioration of physical properties of the fiber itself and yarn-making properties arise.

In order to impart water repellency, JIS L-02
A water-repellent agent, such as a commercially available fluororesin, which can provide a water-repellent performance of 80 points or more (JIS L-1092) after repeating home washing five times according to the 17103 method may be appropriately selected. . If the water repellency after five home washings is not 80 points or more, it is hard to say that it will endure repeated use and its commercial value is small.

Similarly, the water resistance, which indicates waterproofness and water leakage resistance, needs to be at least 250 mm. If the water pressure is less than 250 mm, if the liquid in the bag or bag leaks, the bag leaks out of the bag and stains the bag. This gives rise to problems such as giving off odor.

The moisture permeability is 1000 g / m ² · 24 hr
It is preferably at least s. If it is less than s, the feeling of stuffiness is strong, and a sleeping bag or the like lacks comfort. Further, when the airtightness is increased by a shopping bag or the like, fresh foods and the like in the bag may be stuffy and easily rotten.

Although there is no upper limit on the amount of moisture permeation, generally, generally,
Water resistance and moisture permeability are imparted by coating or film lamination.
In order to provide a moisture permeability exceeding 000 g / m ² · 24 hrs, an extremely expensive film or coating resin must be selected, which is a great obstacle in terms of price when developed.

Preferred water resistance and moisture permeability are as follows:
It is not less than 00 mm and the moisture permeability is not less than 1500 g / m ² · 24 hrs.

When a product is sewn into a bag, it is preferable to use a seam tape for the sewn portion such as ski wear or a tent in order to prevent water leakage from the sewn portion.

The above-mentioned cloth of the present invention is preferably used for bags, particularly for shopping bags for food, sports bags and sleeping bags.

Further, the above-mentioned cloth is preferably used for a lining of bags, especially for a shopping bag or a sports bag.

[0027]

EXAMPLES The present invention will be described below more specifically with reference to examples.

The measured values in the examples and comparative examples were obtained by the following methods.

Antibacterial performance A: Unified test method based on the Council for Evaluation of New Functions of Textile Products Test bacteria: Staphylococcus aureus Antibacterial performance B: Shake flask method Test bacteria: Escherichia coli (O-157: H7) Deodorant performance: A fabric sample is collected according to the table below, cut into strips at 1 cm intervals, and wound around a tube connected to the stopper of a 500 ml polyethylene washing bottle. Next, the malodorous component is charged into a 500 ml polyethylene washing bottle according to the following table, the sample is wound around the stopper, and the container is sealed. Next, the entire washing bottle is warmed with warm water of 50 ° C. for 1 minute, left at room temperature for the time shown in Table 1 below, and the residual concentration of the offensive odor component in the washing bottle is measured with a detector tube.

The deodorizing performance is represented by a deodorizing rate.

Deodorization rate (%) = {(initial gas concentration−residual gas concentration) / initial gas concentration} × 100

[Table 1] Water pressure resistance: JIS L1092 without washing and 5 times after JIS L-0217 103 method Water repellency: JIS L1092 without washing and 5 times after JIS L-0217 103 method [Examples 1 to 6, Comparative Examples 1 to 4] Warp, weft With: 70
Weaving a taffeta with a basis weight of 65 g / m ² consisting of denier and 24 filaments of nylon 6 multifilaments, smelting, dyeing with a jet dyeing machine using a black acid dye, drying and width setting [Sample (A)].

A master chip (B) was prepared by kneading 20% by weight of a mixture of zirconium phosphate and silver oxide (purity: 99% or more, product name: Avalon AG300, manufactured by Toagosei Chemical Co., Ltd.) with nylon 6 polymer. Then, the master chip (B) was blended at 2% by weight with respect to a new nylon 6 polymer, and spun and drawn using an ordinary nylon spinning machine to obtain a 70-denier, 24-filament mixture of zirconium phosphate and silver oxide. An antibacterial nylon 6 yarn (C) containing 0.4% by weight was obtained.

Both warp and weft: Weaving a taffeta having a basis weight of 120 g / m ² made of antibacterial nylon 6 raw yarn (C), refining, and then black acid dye (CI. No. Acid)
Black 109) and dyed with a jet dyeing machine, and dried and heat-set for width adjustment [Sample (D)].

An ordinary nylon 6 raw yarn (70 denier-24 filament) is used for the warp and an antibacterial nylon 6 is used for the weft.
Using a raw yarn (C), weaving a taffeta with a greige fabric weight of 65 g / m ² , refining, dyeing with a jet dyeing machine using a black acid dye, drying and width setting and dry heat setting [sample (E)].

The master chip (B) was blended with 0.4% by weight of nylon 6 polymer to obtain a black taffeta similar to the sample (D) [Sample (F)].

Samples (A), (D), (E) and (F) were divided into three equal parts in the longitudinal direction, 10 parts of porous silicon dioxide fine particles, 1 part of copper sulfate, and condensation of m-xylene diamine and propylene glycol. 1 part of the product, an acrylic resin binder (solid content 45
%), 50 parts of a nonionic thickener and 33 parts of water were mixed and prepared, and the coating resin liquid was divided into three equal parts.
Each was coated with 50 g / m ² and applied. ...
(2) Samples (A), (D), and (F) were divided into three equal parts in the longitudinal direction.
One was coated only with an acrylic binder.・ ・
・ (3) A fabric sample which is divided into three equal parts and only one dye is applied.
(1).

Reversing all 9 samples, a 40 g / l fluorinated water repellent (Asahigard AG93 manufactured by Asahi Glass Co., Ltd.)
0) and 4 g / l melamine resin (Sumitomo Chemical Co., Ltd.)
Sumitex Resin M3) and 1 g / l cross-linking catalyst (Sumitex Accelerator ACX manufactured by Sumitomo Chemical Co., Ltd.)
The mixed aqueous solution containing was padded, dried at 130 ° C., and subjected to a dry heat setting at 170 ° C. which also served as curing and width alignment.

The antibacterial performance (Staphylococcus aureus, Escherichia coli: O-157) and the deodorant performance (ammonia, hydrogen sulfide, trimethylamine, methylmercaptan, acetaldehyde, acetic acid, pyridine) were measured for the above nine levels of samples. did. The outline of the processing level is shown in Table 2, and the evaluation result is shown in Table 3.

Comparative Example 4: 30 parts of porous silicon dioxide fine particles, 6 parts of copper sulfate, a condensate of m-xylene diamine and propylene glycol were divided into three equal parts in the length direction of sample (E). 5 parts, 40 parts of an acrylic resin binder (solid content: 45%), and 19 parts of water.
m ² coating and applied. ... (4)

[Table 2]

[Table 3] Nylon 6 fabric containing zirconium phosphate and processed silver oxide in nylon 6 polymer, as shown in Example 2, was coated with an inorganic compound having an antibacterial deodorizing effect and an aromatic polyamine with an acrylic binder, and further subjected to a water repellent treatment. The applied fabric is easy to generate bad smell from the growth of various germs, and it emits bad smell and is most suitable for shopping bags to put food such as wet pickles and sports bags to put socks and shirts after wearing, It is a hygienic high-function bag that does not saturate, prevents stuffiness, prevents the growth of various bacteria, and suppresses offensive odors. In Examples 1, 5 and 6, the bags were hygienic and highly functional without any problems. In Examples 3 and 4, the antibacterial and deodorant properties against Escherichia coli: O157 were lacking. A hygienic and highly functional bag having water and water resistance can be provided.

On the other hand, if the sleeping bag in which the batting is put in the cloth shown in the above-mentioned first to sixth embodiments, the sleeping bag is hygienic and comfortable.

Comparative Example 1 has only a water-repellent function and is not suitable for a sanitary and functional shopping bag, sports bag or sleeping bag, which is the object of the present invention. Comparative Example 2 has water repellency and water resistance, but is not suitable for the bag of the present invention as in Comparative Example 1. Comparative Example 3 was not suitable for the bag of the present invention because the contents of the zirconium phosphate and the processed silver oxide in the nylon fiber were insufficient.

On the other hand, in Comparative Example 4, the applied amounts of the inorganic compound and the aromatic amine were too large, the strength of the coating film was greatly reduced, and the film was peeled off during repeated washing, and as a result, the desired durability function was obtained. Is not obtained and is not suitable for the bag of the present invention.

[0043]

According to the present invention, fabrics and bags having the above-mentioned constitution can have durability and are excellent in antibacterial deodorization, deodorization, water repellency, moisture permeability and waterproofness. In addition, it suppresses the growth of harmful bacteria such as Staphylococcus aureus and 0-157, and has a deodorant and water leak resistance to malodor such as ammonia, amines, hydrogen sulfide, mercaptans, aldehydes, acetic acid and pyridine. It is possible to provide fabrics and bags suitable for shopping bags, sports bags, and the like, which prevent water and wetness.

In particular, it is suitable as a substitute for food shopping bags, for example, disposable shopping bags in supermarkets, department stores, and the like, and is sufficiently excellent as a general shopping bag.

Further, the fabric of the present invention can be used for a sports bag,
For example, suitable for sports shoes bags such as sports shoes bags such as golf and soccer and rucksacks such as hiking and mountain climbing, furthermore, a cloth made of a polyamide fiber suitable for bags obtained in the present invention is a usual fabric. Excellent enough as a lining for bags.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) D06M 15/61 D06M 11/08 // D06M 101: 34 F term (Reference) 4L031 AA20 AB01 AB31 BA02 BA05 BA09 BA20 CA09 DA12 DA13 DA20 4L033 AA08 AB01 AB04 AC03 AC07 AC10 CA18 CA19 CA57 DA02 DA04 DA06 4L035 BB31 EE04 EE11 EE20 FF04 FF10 JJ01 JJ05 KK05

Claims (7)

[Claims] A synthetic resin comprising at least one inorganic compound selected from copper, zinc, silicon and titanium and an aromatic polyamine on a surface of the cloth. A fabric characterized by being adhered through the fabric. 2. The polyamide fiber comprises a mixture of zirconium phosphate and silver oxide in an amount of 0.1% based on the total weight of the polyamide fiber.
The fabric according to claim 1, wherein the content is at least 1% and less than 1%. 3. A water pressure resistance of 250 mm or more and a moisture permeability of 100
0 g / m ² · 24hrs or more, and fabric according to claim 1 or 2, wherein the water repellency after home laundering 5 times, characterized in that at least 80 points. 4. Bags comprising the fabric according to any one of claims 1 to 3. 5. The bags according to claim 4, wherein the bags are selected from food shopping bags, sports bags, and sleeping bags. 6. A lining of bags, wherein the cloth according to claim 1 is used for lining of bags. 7. A bag lining, which is a lining of a shopping bag or a sports bag.