KR890001789B1 - The process of cotton fabrics - Google Patents

Abstract

The invention relates to a method for processing a cotton fabric to give it an antibacterial and deodorant property. The fabric is immersed in a processing liquid comprising quaternary ammonium cpd 0.1-10% O.W.S., polysiloxane cpd. 5-50 wt.% to antibacterial cpd., amine group nitrogen cpd. 5-50 wt.% and a proper amount of crosslinking agent to be predried at 110 deg.C for 2 min. and treated at 160 deg.C for 5 min. for ion bonding and crosslinking reaction. The processed fabric has durable antibacterial property.

Description

Durable sanitary processing of cotton fabric

The present invention relates to a durable sanitary processing method of cotton fabrics, and more particularly, to a method for imparting antibacterial deodorization to cotton fabrics.

In general, cellulose-based fibers have a number of advantages, such as excellent hygroscopicity, heat retention, comfort and a soft touch when worn, are widely used for clothing.

However, when such cellulose fibers are used in underwear, sports clothing, socks, etc., if sweat is excessive or given proper temperature and humidity, various waste products such as sweat and fat secreted from the human body are used as nutrients for Staphylococcus aureus, dermatophytes, Escherichia coli, urea bacteria, etc. are propagated and fermented, or ammonia is generated to produce odors, and also causes skin diseases such as athlete's foot, and the fiber itself becomes embrittled, and the strength is reduced and discolored.

The sanitary processing for solving the above drawbacks has been of much interest in the past, but unlike other processing, the processing result is invisible, and it was evaluated that the value as a commodity is not so much.

However, with the improvement of the living standard of consumers and the desire to pursue a pleasant life, and the change of the social environment where the importance of public hygiene is emphasized, the consumer's preference for hygienic processed products is improved with durability. It is increasing.

The methods that have been investigated as a method of imparting antimicrobial properties to fiber polymer materials can be roughly divided into pre-treatment methods and post-treatment methods.As a pre-treatment method, an antimicrobial compound is applied to a fiber polymer during polymerization or spinning. As a treatment method, the antimicrobial compound may be applied during spinning or twisting, in the case of dyeing in the real state, and in the dyeing or processing in the fabric state.

However, among the above methods, the pretreatment method is a method that can be applied only to the main synthetic fiber, and there is a defect that cannot be applied to the cotton fiber. In the post-treatment method, the method of imparting an antimicrobial compound during spinning or twisting is dyed or processed. When causing various troubles (Trouble), and also attached to the fiber in a state that does not have a chemical bond, there was a problem in durability.

In addition, the method of giving dyeing in the real state is treated with cheese, and the difference in reaction rate occurs between inner and outer layers due to the difference in reaction rate. There is a method by graft polymerization and a method by crosslinking, which is a monomer having two or more radical polymerizable double bonds to ionically bond a radical polymerizable compound to a fiber material. will be.

However, the radical chemical reaction during radical polymerization has a low reaction rate with cellulose, so it is reacted with ultraviolet rays or electron beams. In this case, there are many restrictions in terms of equipment for industrial application.

Applying antimicrobial material to fiber during dyeing or processing is the most common and easy method, but the existing methods only coat the surface of the antimicrobial material on the surface of the fiber, so that the antimicrobial material is easily removed by washing and thus the durability is low. There was a weak disadvantage.

The present invention is a durable sanitary processing method to solve the above drawbacks, by immersing the cellulose fiber fabric in a mixed solution of antimicrobial compound, silicone preparation, crosslinking agent, reaction catalyst and heat treatment to significantly improve the durability by using the mutual reactivity of the preparations It is about the sanitary processing method which can be improved.

In the present invention, a polysiloxane compound represented by the following general formula (1) is used as an improvement agent for durability, a methol compound is used as a crosslinking agent, and an epoxy amine compound is used as a reaction catalyst. After immersing the cellulosic fiber fabric in the processing solution using a class of ammonia salt salt system, it is characterized in that the pre-drying 110 ℃ × 2 minutes, and then heat treatment 160 ℃ × 5 minutes.

Wherein R ₁ , R ₂ is an alkyl group having 1 to 10 carbon atoms, an aryl group or an alkyl-aryl group

R ₃ and R ₄ are alkyl, aryl, hydrogen or halogen

M is an inorganic element Pb, Sn, Ge or Se

n is an integer of 1-20.

According to the method of the present invention, the fiber and the antimicrobial compound ionically bond a cationic antimicrobial agent to the minus surface of the fiber via organic silicon and at the same time chemically treat the fiber and the antimicrobial compound as a fiber reactive resin. By crosslinking, it is possible to remarkably improve the durability against washing of the antimicrobial agent.

In this case, as an antimicrobial agent, an aromatic halogen compound, an organic nitrogen compound, or the like is generally used. Preferably, a quaternary ammonium salt-based compound is advantageous in terms of ion bonding with fibers.

Alkyldimethyl ammonium chloride and alkylbenzyl ammonium chloride are used as the quaternary ammonium salt compounds, and as the alkyldimethyl ammonium chloride compound, hexyldimethyl ammonium chloride, octyldimethyl ammonium chloride, decyldimethyl ammonium chloride, dodecyl Dimethyl ammonium chloride, cetyldimethyl ammonium chloride, octadecyldimethyl ammonium chloride are used, and as the alkylbenzyl ammonium chloride compound, 2-chloro benzyl ammonium chloride, 4-chlorobenzyl ammonium chloride, 2.4-dichlorobenzyl ammonium chloride , 3.4-dichlorobenzyl ammonium chloride, 4-nitrobenzyl ammonium chloride are used, most preferably octadecyldimethyl (3-trimethoxyl) propyl ammonium chloride.

The amount of the antimicrobial agent to be applied is 0.1-10% by weight with respect to the fiber to be treated, and the antimicrobial property is poor at 0.1% or less, and the reactivity is poor at 10% or more, so that the antimicrobial properties are not improved, and thus, the unreacted antimicrobial agent is a fiber. It remains on the surface and causes various problems such as odor.

Silicone compounds used as a durability enhancing aid are generally contained in antibacterial agents. Since the silicone compounds contained in the antimicrobial agents are low in activity, they have a weak binding force that binds the antimicrobial agent and hemp oil, so the activity should be increased by using a silicone compound having excellent activity. .

As the silicone compound, a siloxane group having a Si—O bond is useful, and most preferably a polysiloxane silicone compound having a dimethyl group.

When the silicone compound is used in combination with the antimicrobial agent, the antimicrobial agent is chemically bonded in the form of -OH group and -SiOH group, which are active groups in the cellulose fiber, through the silicone compound to improve the reactivity of the antimicrobial fiber. The amount of silicone compound used is 5-50% by weight of the antimicrobial agent in consideration of activity and reactivity, and less than 5% of the antimicrobial agent is poor in reactivity, which does not help to improve durability. Adversely affects.

As the crosslinking agent, a fiber-reactive resin is preferable, but in consideration of reactivity with cellulose fibers, methol-based compounds are suitable, and the Tri-based resin has better crosslinking ability and compatibility than the Hexa-based compound.

The proper use concentration of methol compound is 5-30% by weight of the antimicrobial agent is used, the crosslinking ability is insufficient at 5% or less and the unreacted crosslinking agent remains at the surface of the fiber at 30% or more, causing tactile curing.

As the reaction catalyst, compounds such as NH ₃ , NH ₄ Cl, methylamine, ethylenediamine, epoxyamine, NN-dimethylmethyldiamine, etc. are used as the amine-based nitrogen compound. 50% by weight is suitable, and at 5% or less, the effect as a reaction catalyst cannot be sufficiently exhibited, and at 50% or more, the silicone compound and the crosslinking agent are decomposed, thereby decreasing the reactivity.

Processing is possible in a padder or tenter which is a conventional resin processing machine.

The present invention will be described in detail with reference to the following Examples.

The antimicrobial properties shown in the examples were according to the antimicrobial test method (halo test) of the KS K 0692-1984 fabric and the JIS Z 2911-1981 mold resistance test method, and the test specimen was Klebsiella Pneumonial (pneumococcal, American Type Culture Collection No.). .4352) and Chatomium Globosum (fungus, American Type Culture Collection No. 6025). And the washing method conforms to JISL-0844 (using a household washing machine).

Example 1

30 g of octadecyldimethyl (3-trimethoxyl) propyl ammonium chloride as an antimicrobial compound, 10 g of a polysiloxane compound as a silicone preparation for improving the reaction between the antimicrobial compound and the fiber, a crosslinking agent for improving the crosslinking ability with the fiber 5 g of metholol compound and 1 g of epoxy amine compound were prepared as a reaction catalyst, and then water was added to prepare an emulsion dispersion. After dyeing the dyeing cotton (weight 130g / yd) in this emulsion dispersion to pick up to 70%, pre-drying 110 ℃ × 2 minutes in a tenter and then heat treatment 160 ℃ × 5 minutes to complete the reaction.

The results of the evaluation of the antimicrobial properties are shown in Table 1, and the results of the physical property evaluation are shown in Table 2.

Comparative Example 1

5g of octadecyldimethyl (3-trimethoxyl) propyl ammonium chloride as an antimicrobial compound, 2g of polysiloxane compound as a silicone preparation, 1g of metholol compound as a crosslinking agent and 0.2g of epoxyamine compound as a reaction catalyst The same process as in Example 1 was conducted except that 1 l of emulsion dispersion was added by adding water. The results of the evaluation of the antibacterial and physical properties are shown in Tables 1 and 2.

Comparative Example 2

30 g of octadecyldimethyl (3-trimethoxyl) propyl ammonium chloride, an antimicrobial compound, and no other auxiliaries were used. Same as 1,2

Comparative Example 3

Except for using only 1g of the polysiloxane compound, a silicone preparation for improving the reactivity with the fiber of the antimicrobial compound was processed in the same manner as in Example 1 and the results of the evaluation of the antibacterial and physical properties are shown in Table 1,2.

Comparative Example 4

The same process as in Example 1 was carried out except that 30 g of a metholol compound, which was a crosslinking agent for improving crosslinking ability with fibers, was used.

Comparative Example 5

The same process as in Example 1 was carried out except that no methol-based compound, which was a crosslinking agent for improving crosslinking ability with fibers, was used.

Comparative Example 6

Except not using an epoxy amine compound as a reaction catalyst was processed in the same manner as in Example 1, the results of the evaluation of the antibacterial and physical properties are shown in Table 1,2.

Table 1 (Antibacterial Evaluation Results)

Note 1: Halo: The width of the bacterial reservoir formed around the sample

Note 2: mold resistance legend (gompie is placed on the sample)

◎: No lunch at all.

○: Only lunch

△: Small amount multiplied

×: largely multiplied

TABLE 2 (property evaluation results)

Note 1: Property Evaluation Range

○: excellent

△: good

×: defective

Claims (1)

Amino acid of 5 to 50% by weight of the antimicrobial compound and the reaction catalyst of the polysiloxane compound represented by the following general formula (1) using 0.1-10% OWS of the quaternary ammonium salt type compound as the durability improvement aid 5-50% by weight of the nitrogen compound, 5-50% by weight of the total amount of the silicone compound and the crosslinking agent used as the amine-based nitrogen compound, the reaction catalyst, was immersed in a cellulose fiber fabric and then pre-dried at 110 ° C for 2 minutes. Durable sanitary processing method characterized in that the antimicrobial compound is ion-bonded and cross-linked with fibers by heat treatment at 160 ° C. for 5 minutes.

here, Wherein R ₁ , R ₂ is an alkyl group having 1 to 10 carbon atoms, an aryl group or an alkyl-aryl group R ₃ and R ₄ are alkyl, aryl, hydrogen or halogen M is an inorganic element Pb, Sn, Ge or Se n is an integer from 1-20.