JPH0512471B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a durable water absorption and antistatic treatment agent for synthetic fiber structures, and a method for treating synthetic fibers using the treatment agent. [Prior art] Many processing methods have been proposed to make synthetic fiber structures hydrophilic, but the water absorption and antistatic properties obtained are lost due to repeated washing and dry cleaning, and durability is not sufficient. No, no. Furthermore, even if water absorption durability is achieved, the antistatic performance is unsatisfactory under low humidity conditions due to the decrease in water absorption performance. For example, polyethylene glycol,
Alternatively, a method has been proposed in which a bath containing a processing agent having a main chain of polypropylene glycol and an acrylic acid or methacrylic acid ester of acrylic acid, methacrylic acid, or hydroxyalkyl is used (Japanese Patent Application Laid-Open No. 106774/1983). In this method, the water absorption and antistatic properties are significantly reduced by washing, and the abrasion fastness of the dyeing and seam slipping resistance are also reduced. Water absorption using natural polysaccharide derivatives to provide water retention properties,
A moisture absorption processing method has been proposed (Japanese Patent Application Laid-open No. 1983-
70081). The water absorption obtained by this method also has durability. However, it has low water absorption performance and almost no antistatic performance. It is extremely difficult to impart water absorbency and antistatic properties that are durable against washing and the like to synthetic fiber structures, and no satisfactory treatment agent or treatment method has hitherto existed. [Problems to be Solved by the Invention] An object of the present invention is to provide a processing agent and a processing method that simultaneously impart water absorption performance and antistatic performance with repeated washing durability to a synthetic fiber structure. [Means for Solving the Problems] The present invention (1) blocks the isocyanate groups of a urethane compound having isocyanate groups obtained by reacting a natural polysaccharide derivative obtained by adding alkylene oxide to a natural polysaccharide with an organic polyisocyanate. A water-soluble or water-dispersible and thermally reactive blocked product; (2) Formula: [In the formula, R, R ₁ and R ₂ are alkyl groups having 1 to 18 carbon atoms, -CH ₂ CH ₂ OH, -
CH ₂ CH ₂ CH ₂ OH, or

[Formula], R ₃ is −CH ₃ , −CH ₂ CH ₃ , −
CH ₂ CH ₂ OH, −CH ₂ CH ₂ CH ₂ OH,

[Formula] or

[Formula], provided that at least one of R, R ₁ , R ₂ , and R ₃ has an OH group, and X is Br, I, Cl, CH ₃ SO ₄ , or
CH ₃ CH ₂ SO ₄ ]; and formula (3): R ₄ −(R ₅ ) _o −SO ₃ B [2] [wherein R ₄ is H ₂ N− ，

【formula】

[Formula] or HO−, and R ₅ is

〔Example〕

Next, the present invention will be explained in detail with reference to Examples. In the following examples, the test method is as follows. (1) Water absorption JIS L-1096 rising penetration B method (Byreck method) (2) Frictional charging voltage Measured using a Kyoto University rotary static tester (3) Sliding resistance JIS L-1096 (load 5Kg) (4) Friction robustness Degree JIS L-849 (5) Durability Repeated washing JIS L-0217 No. 103 (6) Texture Ai Tactile evaluation by 10 panelists. The notation is as follows. +=Slimy ++=Slightly slimy +++=Shiny taste The following polysaccharide derivatives having the structure of formula [1] were used. Natural polysaccharide derivative compound: Obtained in the same manner as Synthesis Example 1 of JP-A-61-70081. The following cationic antistatic agents were used. The following anionic antistatic agent was used. C-2 HOCH ₂ CH ₂ SO ₃ Na 80% by weight aqueous solution C-3 H ₂ N SO ₃ Na The following was used as the metal catalyst. Dibutyltin laurate Examples 1 to 7 and Comparative Examples 1 to 3 Warp yarns 50d/24f (processed yarn)/scoured, heat set, dyed (navy), washed and dried in a conventional manner.
A cloth made of 100% polyethylene terephthalate with a weft of 50d/24f (processed yarn) having a basis weight of 53.4 g/ ^m2 is immersed in a treatment bath having the composition shown in Table 1, squeezed with a mangle to achieve a squeezing rate of 100%, and heated at 120°C. After drying for 2 minutes with
Heat treatment was performed at 150°C for 2 minutes. The obtained cloth was heated to 20℃,
The performance was measured after being left in a constant temperature room at 65% relative humidity for 24 hours. The measurement results are shown in Table 2.

[Table] The numbers in the table represent weight %. The remainder is water.
Comparative example 4 The following composition 2% by weight Acrylic acid 2% by weight Diethylaminoethyl methacrylate 1.5% by weight Trimethylolpropane trimethacrylate
The performance was measured using a cloth treated in the same manner as in Example 1, except that a bath containing 0.3% by weight of ammonium persulfate, 0.2% by weight of Plysurf A217E, and 93.7% by weight of water was used. The measurement results are the second
As shown in the table.

[Table] [Effects of the Invention] According to the present invention, a polysaccharide derivative and an antistatic agent are processed in one liquid to achieve both water absorption with wash resistance and antistatic properties at a high level. can be done. In the conventional method, when one bath treatment is performed, one of the water absorption performance, washing resistance, and antistatic performance is sacrificed, so the effects of the present invention are remarkable. Furthermore, in the past, when both a cationic antistatic agent and an anionic antistatic agent were included in one bath, the bath became unstable, but the specific cationic antistatic agent used in the present invention and the anionic antistatic agent The combination constitutes a stable bath. Furthermore, according to the present invention, there is no reduction in friction fastness, excellent resistance to seam slipping, a supple texture, and a feel similar to non-slimy cotton, which is surprisingly unprecedented. This effect can be imparted to synthetic fiber structures.

Claims (1)

[Scope of Claims] 1 (1) A water-soluble isocyanate group-blocked urethane compound obtained by reacting a natural polysaccharide derivative obtained by adding alkylene oxide to a natural polysaccharide with an organic polyisocyanate. or a water-dispersible and heat-reactive blocked product; Formula (2): [In the formula, R, R ₁ and R ₂ are alkyl groups having 1 to 18 carbon atoms, -CH ₂ CH ₂ OH, -
CH ₂ CH ₂ CH ₂ OH, or [Formula], and R ₃ is −CH ₃ , −CH ₂ CH ₃ , −
_{CH2CH2OH , -CH2CH2CH2OH , _}
[Formula] or [Formula], provided that at least one of R, R ₁ , R ₂ , R ₃ has an OH group, and X is Br, I, Cl, CH ₃ SO ₄ , or
CH ₃ CH ₂ SO ₄ ]; and formula (3): R ₄ −(R ₅ ) _o −SO ₃ B [2] [wherein R ₄ is H ₂ N− , [Formula] [Formula] or HO-, R ₅ is [Formula] or -CH ₂ -, n is an integer from 1 to 3, B is H, NH ₄ , Li, K,
or Na], provided that the total weight of the cationic antistatic agent and the anionic antistatic agent with respect to the component (1) above is
3 to 50% by weight, and the weight ratio of the cationic antistatic agent and the anionic antistatic agent is 1:9.
A water absorption and antistatic treatment agent characterized in that the ratio is in the range of ~9:1. 2. The water absorption and antistatic treatment agent according to claim 1, wherein the ratio of the cationic antistatic agent to the anionic antistatic agent is in the range of 2:8 to 8:2 by weight. 3. The water absorption and antistatic treatment agent according to claim 1, wherein the ratio of the cationic antistatic agent to the anionic antistatic agent is about 1:1 by weight. 4. The water absorption and antistatic treatment agent according to claim 1, wherein the polysaccharide is sucrose, starch, or fiber. 5. A method of treating a synthetic fiber structure using the water absorption and antistatic treatment agent according to any one of claims 1 to 4. 6. The method according to claim 5, wherein the concentration of the component specified in (1) of claim 1 in the water absorption and antistatic treatment agent is 0.2 to 20 parts by weight based on the synthetic fiber structure. 7. The method according to claim 5 or 6, further comprising using a metal catalyst.