CS201238B3 - Method of simultaneous anti-soil and antistatic finish of polyester fibres and fabrics - Google Patents

Description

The present invention relates to a method of antistatic treatment and a treatment allowing for easy spinning of polyester fibers or flat textile materials.

In practice, copolymers of acrylic acid and esters of acrylic acid have been used for the purpose of treating soil dirt, soil release treatment, and the present antistatic treatment. However, this treatment lasts a maximum of 7 to 8 wash cycles. For polyesters ea they also use polyester ethers prepared by polycondensation of dimethyl terephthalate and ethylene glycol and polyethylene glycol. This treatment is based on the hydrophilic nature of the polyethylene glycol chain. Its disadvantage is that the polyester ethers are waxy in consistency and consequently initially increase the adhesion of the dry pigment impurity. The abovementioned non-wastes eliminate the dirty and antistatic treatment, which is characterized in that 0.5 to 6% by weight, based on the weight of the material to be treated, of a pleinomeric terephthalic acid copolyester β containing 5 is applied to the fiber or the textile fabric. up to 20 mol% of 5-sulfoisophthalic acid by weight of the material to be treated and fixed with s at a temperature of 130 to 190 ° C, preferably at 150 ° C. The proposed pleionomers and containing 5-sulfoisophthalic acid do not exhibit this drawback while maintaining the soil release effect. Another advantage of 5-sulfoisophthalic acid-containing plelonomers is that it can be combined with other types of treatments: non-flammable, antimicrobial®, dyeing with basic dyes, replacing polyester ethers with pleionomeric copolyesters of 5-sulfoisophthalic acid201238

201 230 ee Lines improve the fire resistance of the treated material.

The proposed method consists in treating the polyester fibers or fabrics with pleionomorphic copolymers of terephthalic acid and 5-sulfoisophthalic acid. The soil release treatment in this case is conditioned by the presence of polar -SO2 Na groups. and its antistatic properties.

In Saler, this method of treatment is exemplified by examples without. that aa ropes are exclusive to these types.

Example 1

Dimethyl terephthlate + 20 mol. % of the sodium salt of hydroxyethyl-5-sulfoisophthalic acid and ethylene glycol and was heated at a final temperature of 215 ° C for 155 min. The resulting product had a melting point of 144 ° C and a limiting viscosity number of 7.943 ml / g.

The product was applied to the laboratory fularde in the form of a fine aqueous dispersion on a polyester fabric in an amount of 4% by weight. weight of material. Fabric ea dried at 90 ° C for 3 min and then aa fixed the fixture at 150 ° C for 3 min.

The fabric ea was then laundered in the usual manner on the colteate.

Sample aa was then soaked in worn automotive oil and at 75% fularde removal aa removed excess oil and the sample was allowed to stand at room temperature for 24 h. Then the aa sample was washed on the colteate and compared with the β control untreated sample.

The wash percent of the treated sample, determined on the basis of leukometric measurements, was 48.7, while the untreated sample was 4.4.

Example 2

The procedure as in Case 1, but containing 5 wt. hydroxyethyl-5-sulfoisophthalic acid sodium salt, the polycondensation being continued for 135 min to a final temperature of 204 ° C. The product obtained had a melting point of 87.8 ° C and a limiting viscosity number of 5.720 ml / g.

The surface potential value after 2 washing cycles determined on the EP-68 was 0.2 kV compared to the surface potential value of the untreated fabric, which was 2.6 kV.

The wash percent of the treated sample was 41.4 compared to the untreated one

4.4.

Claims (1)

201 230 with Lina improves the fire resistance of the treated material. The proposed method consists in treating polyester fibers or fabrics with a plelonometric copolymer of terephthalic acid and 5-sulfoisophthalic acid. Salts release treatment is in this case conditioned by the presence of polar -SO 4 Na groups, which simultaneously subdues the hydrophilic character of the treated fiber, respectively. as well as its antistatic properties. In Salsh, this embodiment is illustrated by an exemplary embodiment without. that these types would be exclusive to lenna. AND? Example 1 Dimethyl terephthalate + 20 mol. % hydroxyethyl-5-sulfoisophthalic ethylene glycol sodium salt and heated to 155 min to a final temperature of 215 ° C. The resulting product had a temperature of 144 ° C and a viscosity limit of 7.945 ml / g. The product was applied to a laboratory fularde in the form of a fine aqueous diaper to a 4% w / w polyester fabric, by weight of the material. The fabric was dried at 90 ° C for 5 min and then flipped at 150 ° C for 5 min. The fabric was then laundered in a conventional manner. The sample aa was then soaked in worn out automobile oil and at 75% nafularde stripping, the excess oil was removed and the sample was allowed to stand at room temperature for 24 hours. Thereafter, the sample was washed on colteate and compared to a control untreated sample. The percentage of scrubbing of the treated sample, determined on the basis of leukometric measurements, was 48.7, and the untreated sample was 4.4. EXAMPLE 2 Procedure as in Example 1 but with 5% by weight of the hydroxyethyl-5-sulfoisophthalic acid, the polycondensation was carried out for 155 min to a final temperature of 204 ° C. The product obtained had a melting point of 87.8 ° C and a viscosity limit of 5.720 ml / g. The surface potential value after 2 wash cycles determined on the EP-68 was 0.2 kV compared to the surface potential of the untreated fabric which was 2.6 kV. The percentage of scrubbing of the treated sample was 41.4 compared to the untreated, which was 4.4. BACKGROUND OF THE INVENTION A method for the present non-soiling and antistatic treatment of polysester fibers and textiles, characterized in that the fiber and the fiber are respectively treated. the sheet textile material applied 0.5 to 6% by weight, calculated on the weight of the treated material, of the pleionomeric copolyester of terephthalic acid with 5 to 20% by mol of 5-sulfoisophthalic acid, protected by copyright 201 257 and fixed at 150 to 190 ° C, preferably 150 ° C.