Anti-yellowing softening agent for polyester textile fiber

Abstract

The invention discloses an anti-yellowing softening agent for polyester textile fiber. The anti-yellowing softening agent is prepared from, in parts by weight, 30-48 parts of block silicone oil, 20-35parts of ester quaternary ammonium salt, 4-9 parts of iso-fatty alcohol polyoxyethylene ether, 6-12 parts of essential oil, 0.4-0.8 parts of glacial acetic acid and 72-88 parts of water. The softening agent has reliable performance and has a better anti-yellowing effect.

Description

technical field [0001] The invention relates to a softener for polyester textile fibers, in particular to an anti-yellowing softener for polyester textile fibers. Background technique [0002] Polyester is an important variety of synthetic fibers and is the trade name of polyester fibers in my country. It is a fiber-forming polymer made from polyterephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) through esterification or transesterification and polycondensation reactions- Polyethylene terephthalate (PET), a fiber made by spinning and post-processing. [0003] Among the existing polyester printing and dyeing auxiliaries, softeners are a large category of finishing agents, and their main function is to meet the requirements of different handles / styles of polyester textiles. Polyester textile softener products are mainly divided into two categories: 1. Non-silicon aliphatic type: mainly cationic type, there are also nonionic type, anionic type an...

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Problems solved by technology

2. Silicone type: The first generation is methyl silicone oil emulsion, which emulsifies polymethyl silicone oil to form a non-ionic type. It is mainly used in yarn lubrication or smoothing components of fluffing agents. However, due to the hard feel, it needs another Composite products such as softener films or soft oils; the second generation is D4 silicone oil emulsion polymerization, also known as hydroxyl emulsion, which has good smoothness, but still needs improvement in high temperature resistance, high shear resistance, and electrolyte resistance. Use If not, there will be oil spots; the third generation is D4 silicone oil (including linear body) polymerized with the coupling agent body, and then emulsified. The product is emulsion (called polyemulsion), transparent liquid (called microemulsion), mainly It is used for soft and smooth finishing of various fibers and fabrics, with good hand feeling, but during use, due to insufficient pre-treatment or washing after dyeing, especially when dyeing dark colors, with alkali or electrolyte, and many surfactants, the working fluid Decreased stability of silicone oil emulsion often leads to demulsification of this type of silicone oil emulsion, oil floating, sticking to rollers, and finally leads to silicone oil spots that are difficult to remove