CS200068B1 - A method of contemporary non-dirty, antistatic and hydrophilic treatment of polyester textile materials - Google Patents

Abstract

With the introduction of synthetic materials into the technology of production of modern textiles, the problem of static electricity, washability and hydrophilicity is increasingly appearing. This problem is also attempted to be solved by the above-mentioned application for the invention. The essence of the solution lies in the fact that a layer of a dispersion mixture of a copolymer of terephthalic acid, ethylene glycol and polyethylene glycol β with a molecular weight of 4.5:1» 1 to 3 parts of a chlorinated derivative of benzene / monochlorobenzene, dichlorobenzene or trichlorobenzene / and 5 to 20 parts of a non-ionic surfactant based on acyl polyglycol ether ethoxylate or alkyl polyglycol ethers is applied to the polyester material. In this way, a permanent treatment with an antistatic and "soil-releaee" effect and a simultaneous improvement in the appearance and feel of the final textile product is achieved.

Description

.200 OBB

BACKGROUND OF THE INVENTION The present invention relates to a prior art hydrophilic, antistatic, and spin-releasing coating of polyester materials.

When introducing synthetic materials into the technology of production of modern textiles, the stop is finding a problem of static electricity, spinedness and hydrophilicity in a more limited way. These problems were solved around 1960 by the gradual antistatic treatment and the disintegration of the "Soil Release".

Previously known formulations have some negative properties, such as laundering in washing or chemical cleaning. Although antistatic preparations based on ethoxylated fatty acid glycerides and quaternary ammonium salts reduce the formation of static carbohydrate treatment, the treatment is not permanent and sometimes detrimental to fabric performance.

The prior art processes for treating fabrics with polymeric materials can be divided into three groups: a / polymers with perfluoroalkyl groups amib / polymers based on acrylates c / other polymers modified with hydrophilic blocks

The disadvantage of using perfluorinated maleates is their high cost. They are still economically unbearable for this type of adjustment. The acrylate polymers do not provide sufficient permeability, i.e., stability in the wash.

The above drawbacks are obviated by the process of treating polyester esters according to the invention by applying to the polyester material a layer of a dispersion mixture consisting of 10 to 40 parts of a terephthalic acid, ethylene glycol and polyethylene glycol molecular weight copolymer in a molar ratio of terephthalic acid to polyethylene glycol. : 1.5 to 20 parts of a non-ionic copolymer based on ethylene oxide with propylene oxide of 10% by weight ethylene oxide and 1 to 3 parts of chlorinated aromatic compound, monochlorobenzene, dichlorobenzene to trichlorobenzene.

It is important to know the synthesis of a terephthalic acid, ethylene glycol and polyethylene glycol copolymer such that the melting point of the resulting product is lower than the average fixation temperature of the treated fibers. Modifications of this type are dealt with in English Pat. 1 088 964 and <3B Pat.No. 111 877 as well as US Patent US.Pat.No. U.S. Pat. No. 3,416,952. with the technology of producing the proposed copolymer, the method of the invention is added to the invention.

In addition, the known processes for the treatment of polyester esters have the disadvantage that they are not applied uniformly to the treated textile material by the applied treatment. After drying and fixation, an excess of treatment remains on the surface of the fabric, which has a sticky character, which makes the dirt more dirty and dry.

The above drawbacks are eliminated by applying a novel dispersion system consisting of a terephthalic acid, ethylene glycol and polyethylene glycol copolymer of molecular weight 600 in the molar ratio of terephthalic acid and polyethylene glycol 4.5: 1, 200008 nonionic surfactants and halogenated aromatic derivatives .

By using a nonionic surfactant, uniform application of the treatment in the presence of halogenated aromatic compounds is possible and, at a fixation temperature of between 110 ° C and 170 ° C, synergistically accelerates the anchorage and orientation of the treatment on the fiber; The applied treatment is permanent for 60 to 80 cycles of normal household washing.

The above-described coating produces a continuous uniform film which is not adhesive and which is resistant to dry soiling.

The higher treatment effect of the described dispersion system can be explained by the fact that crystalline regions are formed between the macromolecular treatment and the polyester fiber polymer chains, which anchor the treatment in the fiber surface layer and the spatial orientation of the hydrophilic polyethylene glycol increases due to the presence of both polar and non-polar phases in the dispersion system. blocks. By increasing the spatial orientation of the hydrophilic blocks away from the top of the fiber to the phase interface, the ability to modify the hydrophobic substance displaced in the aqueous environment by the impurities present in the fiber surface is increased.

As the nonionic surfactant, alkyl polyglycol ether, acyl polyglycol ether and ethylene oxide / propylene oxide copolymers can be used. In the following, the invention is illustrated by the examples without the exclusive reference to these. EXAMPLE 1 A base dispersion is prepared from 20 parts of a polyester ether / terephthalic acid / ethylene glycol / poly (ethylene glycol) copolymer having a molecular weight of 4.5: 1 by mixing in a mixer with 80 parts of water. Example 2

To 100 parts of the dispersion of Example 1, 10 parts of a non-ionic fatty alcohol-based solids having carbon numbers of 12 to 16 and ethoxylated units of 8 to 15 and 2 parts of chlorinated aromatic compounds are added.

The mixture is left to mix thoroughly for 10 minutes. . Example 3

To 100 parts of the dispersion of Example 1, 15 parts of a nonionic surfactant based on ethylene oxide copolymer and propylene oxide with an ethylene oxide content of 10% by weight were added.

Evaluation of treatment efficacy was made by the following spfisoboms. Fabric samples of 100% polyester were treated with a primer dilution primer.

Claims (2)

200,000 dispersion! 1: 2 and 3 in water at 60% shake. Samples 98 were dried at 80 ° C for 15 minutes and fixed at 170 ° C for 5 minutes. The treated samples were soiled by immersion in the engine used oil / after 5,000 km /. Excess oil was stripped off by blowing at foulard. The soiled samples were poured into a Linitest laboratory washer / manufactured by ORIdlNAL HANAU / under defined conditions: time 15 minutes, washing bath temperature 40 ° C, TIX4 g / 1 washing agent concentration. bath ratio 1: 50. Calculation of washing efficiency was made under Ts of formula: R 3 "R 2 p _ 100 /% / R 1 - R 2 where P is the wash efficiency in% R 1 is the optical remission of the white non-soiled sample R2 is the optical remission of the soiled sample Rj is the optical remission of the soiled washed sample Optical remission values were obtained by measuring on a Leukometer from Carl Zeiss Jenepri Green Filter Table of Efficiency Evaluation Modification Efficiency /% / Example 1 Treatment according to Example 2 65, 0 71, 3 Adjustment as per Example 3 68, 8 Adjustment with Top Foreign Tool 66, 5 Untreated Pattern 7, 1 PR J3 DK 3 T INVENTION A method for the present non-soiling, antistatic and hydrophilic treatment of polyester materials, characterized in that a layer of a dispersion mixture composed of 90 to 60 parts by weight of water, in which 10 to 40 parts of terephthalic acid is mixed, is applied to the polyester material, ethylene glycol and polyethylene glycol having a molecular weight of 600 in the molar ratio of terephthalic acid and polyethylene glycol 4.5: 1, 1 to 3 parts by weight of the benzene benzene derivative and 5 to 20 parts by weight of ethylene oxide / propylene oxide non-ionic surfactant with 10% ethylene oxide with a molecular weight of 1,200 to 1,800, or an alkyl-polyglycol ether with an alkyl number of 12 to 16 and an ethoxylated of 200008 4 units 8 to 15, or an acyl polyglycol ether and an acyl 12 to 16 carbon atom number ethoxylated units 5 to 15. 2. A method according to claim 1, wherein the chlorine derivative of benzene is monochlorobenzene, dichlorobenzene and trichlorobenzene