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Preparation method of polyester fabric high-fastness ultralow-yellowing silicone oil and polyester fabric

A polyester fabric, ultra-low yellow technology, applied in the direction of dyeing, textile and paper making, improved hand fiber, etc., can solve the problems of fabric yellowing, yellowing, loss of color fastness, etc.

Active Publication Date: 2020-06-23
SHAOXING KEQIAO DEMEI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. The emulsifier solvent in the silicone oil extracts the dye in the fabric, causing the dye to dissolve out of the surface, resulting in yellowing of the fabric and a decrease in color fastness
[0004] There are a lot of modified silicone oils on the market or the popular ternary copolymerized silicone oils that can take care of the yellowing and hand feeling of the fabric, but the color fastness is greatly lost, and during the placement process, the fabric is in contact with the oxides in the air. , there is a potential danger of yellowing, these factors will intensify with the increase of dosage, far from meeting the needs of customers with high requirements and strict standards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of polyester fabric high-fastness ultralow-yellowing silicone oil and polyester fabric
  • Preparation method of polyester fabric high-fastness ultralow-yellowing silicone oil and polyester fabric
  • Preparation method of polyester fabric high-fastness ultralow-yellowing silicone oil and polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add hydrogen-containing polysiloxane and allyl glycidyl ether at both ends to a four-necked flask with a thermometer at a molar ratio of 1.8:1, stir evenly and raise the temperature to 85°C, then add 50ppm of chloroplatinum Acid catalyst (calculated according to the effective ingredients of chloroplatinic acid), stir and mix uniformly, heat up to 100°C, keep the temperature constant for 4h, stop the reaction until the characteristic absorption peak of Si-H bond disappears. After the synthetic product is distilled under reduced pressure, excess allyl glycidyl ether is removed to obtain a colorless, clear and transparent linear double-ended epoxy polysiloxane. The hydrogen conversion rate of the hydrosilylation reaction is measured to be 72%.

[0027] (2) Into a four-neck flask with a thermometer, add a quantitative molar ratio of epoxy-terminated polydimethylsiloxane and anhydrous piperazine of small molecular weight, and add epoxy-terminated polydimethylsiloxane 30% of...

Embodiment 2

[0032] According to Example 1, the molar ratio was changed to 2:1 and the hydrogen-containing polysiloxane and allyl glycidyl ether were added at both ends. The other operations were the same as in Example 1. The hydrogen conversion rate of the hydrosilylation reaction was measured to be 81%.

Embodiment 3

[0034] According to Example 1, the molar ratio was changed to 2.2:1 and the hydrogen-containing polysiloxane and allyl glycidyl ether were added at both ends. The other operations were the same as in Example 1. The hydrogen conversion rate of the hydrosilylation reaction was measured to be 88%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of polyester fabric high-fastness ultralow-yellowing silicone oil. The preparation method comprises the following steps: 1) adding polysiloxane containinghydrogen at two ends and allyl glycidyl ether into a flask, adding a chloroplatinic acid catalyst, stirring and heating, stopping reaction until a characteristic absorption peak of a Si-H bond disappears, and removing excessive allyl glycidyl ether from the synthesized product to obtain linear polysiloxane with epoxy groups at two ends; 2) adding epoxy-terminated polydimethylsiloxane with a smallmolecular weight and anhydrous piperazine in a quantitative molar ratio, and adding ethanol to obtain an ethanol solution of epoxy-terminated polydimethylsiloxane; 3) adding an ethanol solution of large-molecular-weight double-epoxy-terminated polydimethylsiloxane and dimethyl sulfate according to a molar ratio of anhydrous piperazine to dimethyl sulfate of 1: 2, stirring, heating, and maintainingthe temperature for 14 h to obtain faint yellow quaternized polydimethylsiloxane; and 4) adding 100g of quaternization modified epoxy-terminated silicone oil and quantitative emulsifier, adding warmwater, stirring to enable the system to be in a water-in-oil state, and dropwise adding warm water.

Description

Technical field [0001] The invention relates to a preparation method of polyester fabrics with high fastness and ultra-low yellowing silicone oil and polyester fabrics. Background technique [0002] With the development of the times and social progress, people’s needs for spiritual civilization and material civilization are getting higher and higher, especially in terms of living standards, food, clothing, housing and transportation, one step per year, one standard per year, such as clothing fabrics, Weaving defects such as color stains, stains, and reeds that can be easily passed more than ten years ago are no longer acceptable. Customers will add new standards and new requirements every year. Minor color casts and colored flowers have to be reworked and reworked seriously. The production cost has risen, profits have disappeared, and the living space of dyeing factories has shrunk. [0003] At this stage, there are many ways to make polyester fabrics soft and slippery. Alkali red...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/388C08G77/38D06M15/643D06P1/16D06P1/52D06P3/54D06M101/32
CPCC08G77/388C08G77/38D06M15/6436D06P1/16D06P1/5292D06P3/54D06M2101/32D06M2200/50
Inventor 方涛
Owner SHAOXING KEQIAO DEMEI FINE CHEM CO LTD