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Weather-resistant island-and-island fiber base fabric and preparation method and application thereof

A weather resistance, base fabric technology, applied in fiber processing, fiber type, non-woven fabrics, etc., can solve problems such as high cost and environmental pollution, and achieve the effect of improving weather resistance, excellent fleece feeling, and avoiding water waste.

Active Publication Date: 2022-07-01
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the island-fixing technology in the domestic field often uses PA6 / LDPE as the raw material for spinning, and there are also sea-island fiber base fabrics made of PET / COPET for island-fixing spinning. Technical defects, not only high cost but also cause certain environmental pollution when alkali-melting COPET

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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  • Weather-resistant island-and-island fiber base fabric and preparation method and application thereof
  • Weather-resistant island-and-island fiber base fabric and preparation method and application thereof
  • Weather-resistant island-and-island fiber base fabric and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] (1) Put poly-3-methylpentanediol adipate diol (0.03 mol), polycarbonate diol (0.1 mol), and solvent N,N-dimethylformamide (100 ml) into the reaction flask , mix evenly, put in hexamethylene diisocyanate (0.12mol), the catalyst bismuth neodecanoate (0.01g) react at 95 ℃, until the isocyanate group content is constant;

[0069] (2) After the prepolymerization is completed, add ethylene glycol (0.277mol), N,N-dimethylformamide (80ml), add MDI (0.4mol), react at 75°C for 1 hour, add N,N-dimethylformamide Formamide (200ml), cool down to below 50°C, add 4,4'-diaminodiphenylmethane (0.11mol) dropwise, stop adding when the viscosity rises to 200Pa·s (25°C);

[0070] Then add DMF (92ml) to dilute to the viscosity of the reactant to 160Pa·s (25℃), add 0.003mol methanol terminator to react for 30min, cool down to 50℃ and discharge the material to obtain the weather-resistant polyurethane resin, solid resin The mass fraction is 30%.

[0071] The obtained product has a number-aver...

Embodiment 2

[0083] (1) Put poly-3-methylpentanediol adipate diol (0.044mol), polycarbonate diol (0.086mol), solvent N,N-dimethylformamide (100ml) into the reaction flask , mix evenly, put in hexamethylene diisocyanate (0.11mol), and react with bismuth neodecanoate (0.01g) as a catalyst at 95°C until the isocyanate group content is constant;

[0084] (2) After the prepolymerization is completed, add ethylene glycol EG (0.139mol), DMF (96ml), add MDI (0.278mol), react at 75°C for 1.5 hours, add N,N-dimethylformamide (150ml), Cool down to below 50°C, add 4,4'-diaminodicyclohexylmethane (0.139mol) dropwise, and stop adding when the viscosity rises to 200Pa·s (25°C);

[0085] Then add DMF (80ml) to dilute to the viscosity of the reactant to 160Pa·s (25℃), add methanol 0.003mol terminator to react for 30min, cool down to 50℃ and discharge the material to obtain the weather-resistant polyurethane resin, solid resin The mass fraction is 30%.

[0086] The obtained product has a number-average mo...

Embodiment 3

[0097] (1) Polytetrahydrofuran ether diol (0.017mol), poly-3-methylpentanediol adipate diol (0.02mol), polycarbonate diol (0.093mol), solvent N,N-diol Methylformamide (100ml) was put into the reaction flask, mixed evenly, put into hexamethylene diisocyanate (0.1mol), and the catalyst bismuth neodecanoate (0.01g) was reacted at 95°C until the isocyanate group content was constant;

[0098] (2) After the prepolymerization is completed, add ethylene glycol EG (0.322mol), DMF (100ml), add MDI (0.35mol), react at 75°C for 1.5 hours, add N,N-dimethylformamide (170ml), Cool down to below 50°C, add 4,4'-diaminodicyclohexylmethane (0.143mol) dropwise, and stop adding when the viscosity rises to 200Pa·s (25°C);

[0099] Then add DMF (80ml) to dilute to the viscosity of the reactant to 160Pa·s (25℃), add methanol 0.003mol terminator to react for 30min, cool down to 50℃ and discharge the material to obtain the weather-resistant polyurethane resin, solid resin The mass fraction is 30%.

...

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 weather-resistant island-setting sea-island fiber base fabric and a preparation method and application thereof. The weather-resistant island-setting sea-island fiber base fabric is prepared from the following components in parts by weight: polyester·90-60 parts, weather-resistant polyurethane resin·10-40 parts, the invention has a very good release structure, so that the microfiber base cloth has very excellent velvet feeling and fleshy feeling. At the same time, due to the introduction of urea group and aliphatic structure, the weather resistance of the product is greatly improved compared with conventional products, and the color fastness of the base fabric is high. Water waste. Described weather-resistant polyurethane resin is the polymer with structural segment shown in formula (1):

Description

technical field [0001] The invention relates to a fixed-island-island-type fiber base cloth and a preparation method thereof. Background technique [0002] At present, the island microfiber used in domestic production is divided into two types: indefinite island type microfiber and fixed island type microfiber according to the different production technologies used. The islands in the indefinite island type island microfiber are uncontrollable and discontinuous on the longitudinal axis. After solvent treatment, microfibers with irregular thickness and length are formed; while the fixed island type microfiber is The fibers are continuous on the longitudinal axis, and are uniform ultrafine fibers with a fixed number of islands, uniform fineness and length. [0003] The number of islands in the island-type superfine fiber is generally 16 islands, 24 islands, 37 islands, 64 islands and other specifications. Class, widely used in clothing leather, shoe leather, luggage leather,...

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 Patents(China)
IPC IPC(8): D06M15/564D06M15/647D04H1/4382D06M101/32D06M101/20
CPCD06M15/564D06M15/647D04H1/4382D06M2101/32D06M2101/20
Inventor 孙向浩张其斌胡忠杰段伟东赵鸿凯杜明兵刘国韩芹
Owner HUAFON MICROFIBER SHANGHAI
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