JPH01239167A - Crimped twist yarn knitted fabric - Google Patents

Abstract

PURPOSE:To obtain the title knitted fabric with development of friction marks prevented, improved in resistance to fibrillation, by treating yarn or cloth made up of cellulose fiber with a cationic reactive compound to form a reaction product with cellulose. CONSTITUTION:Yarn or cloth made up of regenerated cellulose fiber is treated with a solution containing 1-200g/l of a cationic reactive compound and an alkaline agent such as sodium hydroxide to form a reaction product with cellulose. By this treatment, the yarn or cloth will be prevented from developing friction marks and improved in resistance to fibrillation, and a crimped twist yarn knitted fabric made from said yarn or cloth will retain their inherent characteristics. Said cationic reactive compound is, e.g., a glycidyl trimethylammonium chloride of formula I (R1-R3 are each H, or 1-4C alkyl; X is halogen) or 3-chloro-2-hydroxy-propyl trimethylammonium chloride of formula II (R4-R6 are each H, 1-4C alkyl or aryl; X2 and X3 are each halogen).

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grained twisted yarn knitted fabric. More specifically, the present invention relates to a grained knitted fabric with improved fibrillation resistance.

[Conventional technology]

Conventionally, in knitted fabrics made of regenerated cellulose fibers with grained twist, yarns with a transpiration rate of 500 T/m or more are used as warp or warp yarns, and knitted fabrics with yarns with a twist rate of 100 T/m or more are used. In order to bring out the grain that is a characteristic of these products, a graining process is performed during the dyeing process.During this process, dyeing, and finishing in the wet state, friction between the fabrics or between the fabric and the dyeing machine causes The surface of the fabric is partially rubbed, causing fibrillation, and the gloss, hue, etc. of that area changes compared to other areas, resulting in lower quality. (Hereinafter, this change in gloss, hue, etc. will be referred to as " The following two methods have been adopted so far to prevent "scratching".■ Adding oil, etc. to the yarn at the yarn manufacturing stage to make the yarn flexible. A method of reducing the coefficient of friction and preventing the occurrence of "scratches".

■A method of adding softeners, etc. to the bath during the dyeing process of fabrics to reduce the coefficient of friction of the fabrics and prevent the occurrence of "scratches".

All of the above methods have little effect on preventing the occurrence of "scratches" and do not improve fibrillation.

[Problem to be solved by the invention]

As a result of research into the above-mentioned problem, the present inventors found that simply reducing the coefficient of friction of the yarn is not effective in preventing fibrillation and causes "scratching".
It was found that resin treatment with dimethylol, dihydroxyethylene urea, etc. to prevent fibrillation caused a significant decrease in the strength of the fibers, resulting in noticeable "fraying".

The object of the present invention is to improve the fibril resistance and prevent the occurrence of "fraying" without impairing the characteristics of grained twisted yarn knitted fabrics.

[Means to solve the problem]

In order to achieve the above objective, as a result of intensive research, it was discovered that "scratching" could be improved by preventing fibrillation of regenerated cellulose fibers and imparting flexibility with excellent durability to the fibers. , we have completed the present invention.

The object of the present invention is achieved by a wrinkled single-thermal knitted fabric made of regenerated cellulose fibers, which is characterized in that a reaction product of a cationic reactive compound and cellulose is formed in the form of yarn or fabric.

The present invention will be described in more detail below.

The cationic reactive compound in the present invention is one that has reactivity with regenerated cellulose fibers, and examples thereof include those shown in general formulas (1) to (III).

In formula 0, R, , R, and R3 are hydrogen or an alkyl group having 1 to 4 carbon atoms, and XI is a halogen. ] In formula 0, Rn, Rs and Rb1J hydrogen or carbon number 1-4
are an alkyl group or an aryl group, and x2 and x are halogens. [In the formula, A+, Az, A3 and A4 are each hydrogen, an alkyl group having 1 to 18 carbon atoms, a cycloalkyl group,
B1 and B2 are each hydrogen, -011
□・CIl・CIl□X (X is a halogen atom), il! (X is a halogen atom), Y is a residual acid group. Also, n is 2
is an integer of 1 or more, and X is an integer of 1 or more. ] Specific examples of the compounds represented by the general formula (I) include glycidyl trimethylammonium chloride, glycidyl tripropylammonium chloride, glycidyl trimethylammonium bromide, and the like.

Moreover, as a specific compound represented by formula (II),
Examples include 3-chloro-2-hydroxypropyltrimethylammonium chloride and 3-bromo-2-hydroxypropyltriethyleneammonium chloride.

Further, as specific compounds represented by the general formula (III), trimethylenebis(3-chloro-2-human I:]xypropyl-dimethylammonium chloride), hexamethylenebis(3-chloro-2-hydroxypropyl dimethyl ammonium chloride), trimethylene bis(
Glycidyl dimethyl ammonium chloride), trimethylenebis (glycidyl diethylammonium chloride), etc.

The regenerated cellulose fibers in the present invention are those obtained by blending, lY co-fiber, inter-knitting, and inter-weaving with viscose rayon, cuprammonium rayon, polynosic, etc., and synthetic fibers.

In the present invention, treating the yarn or fabric with a cationic reactive compound means to physically or chemically apply it to the yarn, knitted fabric, or woven fabric of regenerated cellulose fibers, so that the reactive compound and cellulose are treated with a cationic reactive compound. The formation of reactants. The method for applying it is a dipping method, a padding method, a printing method, a spraying method, etc., and acids, alkalis, and various catalysts necessary for the reaction may be used. In particular, it is preferable to use an alkaline agent, and sodium hydroxide, sodium carbonate, sodium hydrogen carbonate, etc. are preferable.

In addition, the reaction can be carried out in a bath, dry heat, warm heat, etc., and the reaction temperature is
In the immersion method, the temperature is 0-150℃, and in other methods, the temperature is 0-20℃.
It is 0°C. Further, the reaction time is appropriately determined depending on the treatment temperature and treatment method.

Next, the amount of cationic reactive compound used is 1 to 200 g.
/L, preferably io to 150 g/L or more. If it is 1 g/L, the durability is poor, and if it is more than 200 g/L, the physical properties of the regenerated cellulose fibers will deteriorate, which is not preferable.

Note that the reaction product between the cationic reactive compound and cellulose tested by the above method can be confirmed by the following method for measuring the total nitrogen amount.

The total nitrogen amount is measured using a trace total nitrogen analyzer TN-10C (manufactured by Mitsubishi Kasei Ogiku). Total nitrogen amount 11000pp/g
More than fibers can be confirmed.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples.

Implementation■ Clay copper ammonia method rayon thread 75d/45f (Asahi Kasei Corporation■) Wotrimethylenebis(3-chloro-2-hydroxypropyl dimethylammonium chloride) 90
g/L and an aqueous solution containing 13 g/L of sodium hydroxide at a bath ratio of t:zo for 30 minutes at 8o°C, followed by
Neutralized with acetic acid, washed with water, and dried.

Next, this yarn was twisted at a twist rate of 120 T/m, and then knitted using a jersey stitch.

Copper ammonia method rayon yarn 75d/45f twisted B
It was twisted at 120T/m, and then rolled up.

The knitted fabrics of Example 1 and Comparative Example 1 obtained by the above method were dyed with CI Reactive Black using a jet dyeing machine.
Table 1 shows the performance of various knitted fabrics obtained by dyeing black at 55% owf.

Table 1 (Note) “Thread” condition ○ There are no scratches on fabric 11.

△ There are less than 10 scratches per fabric IM.

× There are 10 or more scratches per fabric.

“Fibrillation” state ○ No fibrillation.

8. Some of the single threads are cut.

×　Single threads are cut and fluffy.

As shown in Table 1, the knitted fabric of the present invention does not cause "sweeping" or fibrillation, and has a soft texture.

Copper ammonia method rayon fabric (75/75 decinene...
A warp yarn (twist number 800 T/m) was immersed in an aqueous solution containing 100 g/L of trimethylene bis(3-chloro-2-hydroxypropyl dimethylammonium chloride) and 13 g/L of sodium hydroxide, and after squeezing the liquid, it was wound up. The mixture was sealed with a polyethylene film and reacted at 20° C. for 20 hours, followed by neutralization with acetic acid, washing with water, and drying.

Next, this fabric is dyed with C1, Reactive using a jet dyeing machine.
It was stained with Black 55% owf.

Trimethylene bis(3-chloro2-
The treatment was carried out under the same conditions as in Example 2, except that chrycidyl trimethyl ammonium bromide was used instead of hydroxypropyl dimethyl ammonium chloride.

The fabric of Example 2 was treated with trimethylene bis(3-chloro-2-
Example 2 except that 3-chloro-2-hydroxypropyltrimethylammonium chloride was used instead of hydroxypropyldimethylammonium chloride)
It was treated under the same conditions.

Copper ammonia method rayon fabric (75/75 decinene) was dyed using a liquid jet dyeing machine.C1, Reactive Black 5
It was stained with 5% owf.

Examples 2 to 4 and Comparative Example 2 obtained by the above method
The performance is shown in Table 2.

As shown in Table 2, all of the fabrics of the present invention have a soft texture without any "fraying" or fibrillation.

〔Effect of the invention〕

The knitted fabric of the present invention improves fibrillation resistance and prevents the occurrence of "fraying" without impairing the characteristics of the grained twisted yarn knitted fabric.

Claims (1)

[Claims] treated with a cationic reactive compound in yarn or fabric form,
A grained twisted yarn knitted fabric made of regenerated cellulose fiber, characterized in that a reaction product between a cationic reactive compound and cellulose is formed.