Method for producing polyurethane elastic fiber containing octacarboxyl metal phthalocyanine

A technology of polyurethane elasticity and metal phthalocyanine, which is applied in the manufacture of rayon, fiber chemical characteristics, single-component synthetic polymer rayon, etc., can solve the problems of deodorization and heat resistance of elastic fibers that have not been seen yet

Inactive Publication Date: 2011-12-07
ZHEJIANG HUAFENG SPANDEX +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no relevant reports and patents on improving the deodorizing performance and heat resistance performance of polyurethane elastic fibers with octacarboxy metal phthalocyanine.

Method used

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  • Method for producing polyurethane elastic fiber containing octacarboxyl metal phthalocyanine
  • Method for producing polyurethane elastic fiber containing octacarboxyl metal phthalocyanine
  • Method for producing polyurethane elastic fiber containing octacarboxyl metal phthalocyanine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1 Preparation of iron octacarboxyphthalocyanine: Take 20g of pyromellitic anhydride, 104g of urea, 51g of FeCl3 (6H2O), 0.8g of catalyst ammonium molybdate, mix them and grind them in a ball mill to grind them finely and mix them evenly. Heat the medium-range power of the microwave oven (the specific value is between 500w-800w) for 10 minutes, and the obtained solids are washed twice with deionized water, acetone, and 6mol / L hydrochloric acid respectively, filtered with suction, and dried. Hydrolyze the product with 10% KOH solution at 90°C until no ammonia gas is generated, dilute it with deionized water to a specific concentration of 2L, filter with suction, and adjust the pH value of the filtrate to 6mol / L hydrochloric acid 2. Stand still, and after all the precipitates are separated out, use a sand core funnel to filter, wash with methanol for 3 times, and dry in a vacuum oven to obtain octacarboxyphthalocyanine iron.

[0022] Step 2 is equipped with a solution...

Embodiment 2

[0026] Polyurethane elastic fibers were prepared according to the same method described in Example 1, except that the content of octacarboxyphthalocyanine iron in the fibers was 5.0%.

Embodiment 3

[0028] Polyurethane elastic fibers were prepared according to the same method described in Example 1, except that the content of octacarboxyphthalocyanine iron in the fibers was 10.0%.

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Abstract

The invention relates to a method for manufacturing polyurethane elastic fibers containing octacarboxylic metal phthalocyanines. The method is mainly characterized by uniformly dissolving octacarboxylic phthalocyanine derivatives in a polyurethane spinning solution and obtaining the corresponding elastic fibers through spinning by adopting the conventional dry spinning technology. The method has the following beneficial effects: the octacarboxylic metal phthalocyanines are soluble in dimethylacetamide (DMAC) or dimethylformamide (DMF) and are uniformly dispersed in the polyurethane spinning solution, and the carboxyl groups on the metal phthalocyanines and the carbonyl groups on polyurethane macromolecular chains can form hydrogen bonding which is beneficial to improvement of the heat resistance of the fibers as shown in the drawing 1; 2. the obtained fibers can be used for eliminating formaldehyde in the textile use process and in the ambient environment; and 3. the conventional polyurethane fiber dry spinning process can be adopted for spinning, without reforming the existing equipment.

Description

[0001] technical field [0002] The invention relates to a method for producing polyurethane elastic fibers containing octacarboxyl metal phthalocyanine. The polyurethane elastic fiber prepared by the invention not only has obvious formaldehyde elimination effect, but also has greatly improved heat resistance performance of the fiber. Background technique [0003] Polyurethane elastic fiber, also known as spandex, has the characteristics of good elasticity and high elastic recovery rate. The use of polyurethane elastic fiber is mostly spandex as the yarn core, outsourcing cotton, wool, polyester and other non-elastic fibers to make various core-spun yarns, covered yarns, and twisted yarns. Fabrics containing spandex are soft in texture, comfortable to wear, and full of elasticity. At present, they are widely used in the manufacture of various high-end textiles such as underwear, sportswear, swimwear, women's fitness clothes, and high-elastic socks. However, with the contin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/94D01F1/10
Inventor 杨从登陈大俊席青方瑛梁红军题杨李建通
Owner ZHEJIANG HUAFENG SPANDEX
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