JPS61275480A - Production of base cloth for bag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for producing a base fabric for bag material having excellent waterproof and antibacterial properties.

(b) Conventional technology Conventionally, in addition to natural leather, artificial leather, and other materials, fiber fabrics have been used as materials for shoes. In particular, fiber fabrics are used as base fabrics for mountain climbing bags, sports bags, material bags, etc. There are many. The base fabric for bag material made of this fiber fabric is a mm-thick fabric woven or knitted using fiber-based threads such as cotton, rayon, polynosic, nylon, or ester, polyacrylic acid resin, polyvinyl chloride resin, etc. Some are coated or laminated with synthetic resin such as polyurethane resin. These base fabrics for bag materials are processed with synthetic resin as described above to impart waterproofness and a leather-like appearance, but if there are even the slightest pores or gaps in the resin coating, the waterproofness may be impaired. Furthermore, the adhesion between polyamide fibers and polyester fibers, which are commonly used as synthetic fibers, and the resin to be subjected to ri are not always good (and the two may peel off due to repeated bending, friction, etc. during use). The waterproofing effect of products may deteriorate over time, and in order to prevent this, they are coated with a large amount of resin.As a result, products using these base fabrics for bag materials are heavy and have a hard texture. Moreover, it has almost no breathability, and if sweat-stained underwear, towels, etc. are placed in the product, such as a sports bag, it may emit a bad odor.
There are problems such as the generation of mold, and improvements in odor and antibacterial properties are desired.

On the other hand, in the clothing field, hygienic processing is applied to underwear, socks, medical special work, cotton and elastic thread materials, etc. for the purpose of deodorization and antibacterial properties, but they generally lack durability.
The effect is significantly lost due to washing, etc. Therefore, it is difficult to immediately apply these processes to base fabrics for bag materials.

(c) Problems to be Solved by the Invention The present invention solves the above-mentioned problems with conventional base fabrics for bag materials, and provides a base fabric for bag materials that has excellent waterproof, odor-proof, and antibacterial properties. The present invention aims to provide a manufacturing method that can obtain the desired results.

(d) Means and action for solving the problems The present invention includes:
Woven and knitted fabrics made of synthetic fibers are coated with a synthetic resin solution at a solid content of 20 to 50 g/1rd, dried and cured, and then treated with a treatment solution containing a water control agent and a sanitary agent. The amount of solid content is 0.2 to 2% by weight of water repellent agent and 0 sanitary agent.
．． This is a method for producing a base fabric for bag materials, which comprises treating the base fabric to a concentration of 1 to 1% by weight, drying, and curing.

Among the base fabrics for bag materials, those used for sports bags, etc. have a water pressure resistance (according to JIS L-1014) of 50.
In addition to waterproofing of 0f1 or higher, antibacterial properties that prevent odors, mold, etc. are required. In the present invention, in order to satisfy the above-mentioned requirements for a base fabric for sheath materials, a woven or knitted fabric is first woven or knitted using synthetic fibers such as polyamide or polyester. If necessary, the woven or knitted gray fabric is scoured and dyed using conventional methods, and then coated with a solution or dispersion of a synthetic resin such as polyacrylic resin, polyurethane resin, or chlorosulfonated polyethylene resin. Then, it is dried and cured to form a synthetic resin film on the surface of the woven or knitted fabric, giving it some degree of waterproofness.

Coating is carried out using a device such as a knife coater or reverse coater in a conventional manner, and the amount of resin applied must be in a relatively small range of 20 to 50 g/rrr in terms of solid content, less than 20 g/rrr. The strength of the coating formed on the surface of the woven or knitted fabric is weak, and the desired waterproofness cannot be achieved, resulting in repeated bending during use.

It is easy to peel off due to friction, etc., and if the coating amount exceeds 50 g/-, the texture becomes very hard and the quotient and high value decrease. It should be noted that it is difficult to provide waterproofness with a water pressure resistance of 500 fi or more with only the above synthetic resin coating with an application amount of 20 to 50 g/rrl, but it is difficult to provide waterproofness with a water pressure resistance of 500 fi or more, but it is difficult to provide waterproofness with a water pressure resistance of 500 fi or more. Together, sufficient waterproofness will be provided.

Next, the woven or knitted fabric coated with the above synthetic resin is treated with a treatment solution containing a water repellent agent and a sanitary agent, dried and cured to impart clear water and antibacterial properties.

As the flood control agent, commercially available organic fluorine compound-based or organic silicon compound-based flood control agents can be used. Sanitary finishing agents are agents that suppress or kill the growth and reproduction of pathogenic bacteria and molds, and include silicone-based quaternary ammonium salts or 5-chloro-2-(2,4 dichlorophenoxy) phenol. Can be used. These commercially available sanitary finishing agents generally cause little skin damage, but in the present invention, they can be made even safer by being used in combination with a flood control agent, and since treatment with a sanitary finishing agent alone has poor antibacterial durability. On the other hand, when used in combination with a flood control agent, durability is significantly improved.

It is possible to prepare a treatment liquid by melting and dispersing a flood control agent and a sanitary agent in water, and if necessary, add alcohol to improve permeability. Also, for woven and knitted fabrics,
In order to provide waterproofness with a water pressure resistance of 500 dragons or more, along with the effect of the resin coating of 20 to 50 g/rrr, the water clarity (JISL-1018) is 80.
It is necessary to provide water clearness as described above. In order to provide good water clarity and odor and mold resistance, i.e., antibacterial properties, the amount of the water repellent and sanitary agent applied should be 0.2 to 2% (solid content) of the water repellent agent. Resin coating base fabric weight...Hereinafter o, IA.

It is called f. ), sanitary finishing agent 0.1-1%0. W, f,
It is necessary to keep it within the range of . Water repellent coating amount is 0
．． 2%0. If the amount is less than 2% O, W, f, not only will the target waterproof performance not be obtained, but the antibacterial durability will be extremely low, and if the amount is more than 2% O, W, f, the texture will become hard and the quality are low and both are inappropriate. In addition, the amount of sanitary finishing agent adhered to
If it is less than 0.1% OJ, f, sufficient anti-bacterial properties cannot be obtained, and if it is more than 1% O, W, f, the water repellency decreases and a sufficiently satisfactory waterproof performance cannot be obtained.

When applying the flood control agent and sanitary agent as above,
Curing is performed to ensure sufficient adhesion, but it is desirable to perform this curing at a temperature in the range of 160 to 190°C; at temperatures lower than 160°C, adhesion tends to be insufficient, and sufficient waterproof and antibacterial properties cannot be achieved. If the temperature is higher than 190° C., there is a tendency for the coated resin film to deteriorate, which is undesirable, and the curing time is preferably 30 seconds or more in order to obtain a sufficient effect.

(E) Examples Example 1゜Nylon multifilament yarn 420 for warp and weft
Using d/48f, weaving density: warp 50/inch, width 32/
After weaving a plain woven fabric, the woven fabric was scoured and dyed in a conventional manner, and then coated with a polyacrylic acid resin under the following conditions.

Polyacrylic acid resin (Criscor) P-1130: Dainippon Ink Industries) (purity 30%) 80% by weight catalyst (
Crisbon Nχ: Dainippon Ink Industries) 3% by weight Toluene 17〃Viscosity: 1
5000 C, P, S.

Processing machine: Roll coater (2 coats) Coating amount (solid content): 30 g/m2 Drying: 80°C, 30 seconds Curing: 150°C, 1 minute Next, apply a treatment liquid containing a water control agent and a sanitary agent. ,
The following formulation was prepared, and the above-mentioned resin-coated fabric was padded (squeezing ratio: 40%), dried, and then cured at 170° C. for 45 seconds. The adhesion amount of each finishing agent is 0.36% water repellent agent in solid content. H, f, and sanitary finishing agent 0.3% O, W, l.

Fluorine-based water repellent finishing agent (Scotchgard FC-232: Order 3M) (purity 30%) 3.0% by weight 5-chloro-
2-(2,4 dichlorophenoxy) phenolic sanitary finishing agent (Sanitize SN: Suniquiz, USA) (purity 25%)
) 3.0% by weight Isopropyl alcohol 3.0# water 91.0
〃Comparative example 1. Finally, the above Example 1. Example 1 except that instead of the treatment with a treatment liquid containing a flood control agent and a sanitary treatment agent in Example 1, a treatment liquid with the following formulation was used. processed in exactly the same way.

(A) Fa water processing agent 1.7% by weight single treatment solution (adhesion amount:
0.2% O, W, f,) (B) Sanitary finishing agent 3% by weight single treatment solution (adhesion amount: 0.3
0. W, f,) <c> m Water treatment agent 1.7% by weight and sanitary treatment agent 0.8
Weight% treatment liquid (adhesion amount: @ water processing agent 0.20.W, f,
and sanitary finishing agent 0.08% OJ, f,) (D) ta water finishing agent 1.7% by weight and sanitary finishing agent 12% by weight treatment liquid (adhesion amount: ia water finishing agent 0.2% O, W, l
and sanitary finishing agent 1.2%0. Table 1 shows the results of tests on water repellency, water pressure resistance, odor resistance, and antibacterial properties of the processed fabrics obtained in the above Examples and Comparative Examples.

Note to Table 1, 1) Water level: JIS L-10182) Water pressure resistance:
JIS L-1014 3) Odor resistance: 1 mjl of milk is dropped onto a sample with a diameter of 10 cm, placed in a polyethylene bag, then air is introduced and sealed, and after being left at 37°C for 3 days, it is taken out and smelled. It was judged by 10 people, and those judged to be effective by 8 people were considered effective. ○...Effect, ×...No effect.

4) Antibacterial properties (halo test): sample size 20fi
, 37℃, left for 24 hours, judged by the width of the transparent part.

As is clear from the description in Table 1, Example 1 of the present invention. The base fabric for bag materials obtained in this process has excellent waterproofness, odor resistance, and antibacterial properties, and also has good antibacterial durability, and even after repeated home washing 10 times, it retains approximately 86% of its original value immediately after processing. It maintained its antibacterial properties and had a good texture. On the other hand, Comparative Example 1-(B), which was treated with a sanitary finishing agent alone, naturally had low waterproof properties, but also had extremely low antibacterial durability, and the combined treatment with the water repellent finishing agent of the present invention improved antibacterial properties. It turns out that it is extremely effective. Also, as is clear from Comparative Example 1-(C) and (D), even when a flood control agent and a sanitary agent are used together, there is a tendency for the waterproofness to decrease when the amount of the sanitary agent adheres is large.

Example 2゜Warp and weft polyester multifilament yarn 25
Using 0d/48f, weaving density: warp 100/inch.

A plain woven fabric of 82 +1t/inch was woven, and the woven fabric was scoured and dyed in a conventional manner, and then coated with chlorosulfonated polyethylene resin under the following conditions.

Chlorosulfonated polyethylene resin (Hypalon: Showa Neoprene) (purity 60%) 80M amount% toluene
20〃Processing machine: Knife coater Coating amount (solid content): 30g/m Drying: 80℃, 30 seconds Curing 7 150℃, 1 minute Next, apply a treatment solution containing a water repellent agent and a sanitary agent to the following formulation. The above resin-coated fabric was applied to this with a squeezing rate of 30%), and after drying, it was dried at 180°C for 30 minutes.
Cured for 0 seconds. The adhesion amount of each finishing agent was 0.36% O, W, f as a solid content.

Sanitary processing agent 0.6%0. It was W, f.

Silicon-based water repellent finishing agent (Poron-A R: Shin-Etsu Chemical) (purity 60
%) 2% by weight Silicone-based quaternary ammonium salt sanitary finishing agent (DC5700: Dow Corning) (purity 40%) 5% by weight Water 93〃Comparative Example 2. As in Example 2 above. The amount of resin coating applied in (A>10g/n? and (B) 60g/n?
Example 2 above except that rrr is set. and gold (treated in the same manner, treated with a resin coating and a treatment solution containing a water repellent agent and a sanitary agent, and (C) treated with a water repellent agent and a sanitary agent used in Example 2 above. Instead of liquid,
Example 2 above, except that a treatment liquid having a composition of 12.0% by weight of the water repellent agent and 5% by weight of the sanitary agent was used. It was treated in exactly the same manner as (Amount of adhesion: water repellent agent 2.16% O, W, f, sanitary agent 0.6% 0.W, f,).

Example 2 above. and Comparative Example 2. Table 2 shows the water pressure resistance, antibacterial properties, and texture of the processed fabrics obtained.

As is clear from the results shown in Table 2, Example 2 of Table 2 of the present invention. The bag material base fabric obtained in Example 2 has extremely superior waterproof properties compared to that obtained in Comparative Example 2.

It had antibacterial properties and texture, and also had good ability to remove stains from juice, coffee, etc. In Comparative Example 2, (A) with a resin coating amount of Log/n (has low water pressure resistance (lack of firmness), and (B) with a coating amount of 60 g/- is extremely hard and has no commercial value. Poor, water repellent agent is 2.16%
0. (C) with a large number of W and f is hard and undesirable.

(F) Effects of the Invention The present invention coats a knitted fabric made of synthetic fiber-based strips with a synthetic resin in a relatively small amount (solid content) of 20 to 50 g/rd. to form a synthetic resin film, and then use a treatment solution containing a water repellent agent and a sanitary agent to reduce the adhesion amount (solid content) to 0.
．． 2-2% O, W, f, sanitary finishing agent 0.1-1% O,
A base fabric for bag materials which is characterized by being treated with W, f, dried and cured, and has a good texture and excellent waterproof, odor-proof and anti-bacterial properties. In particular, a relatively small amount of resin coating and water repellent agent provides waterproofness of water pressure 5001 or higher, and by using the water repellent agent and sanitary agent together, it is highly safe and durable. It has the exceptional effect of imparting excellent antibacterial properties and also improving antifouling properties.

Claims (1)

[Claims] (1) A woven or knitted fabric made of synthetic fibers is coated with a synthetic resin solution at a solid content of 20 to 50 g/m^2, dried and cured, and then treated with a water repellent and sanitary treatment. Treat the object with a treatment liquid containing the agent so that the solid content is 0.2 to 2% by weight of the water repellent agent and 0.1 to 1% by weight of the sanitary agent, dry, A method for producing a base fabric for bag materials, which comprises curing the fabric.