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High-moisture-absorption polylactic acid fibers for medical paper towel

A polylactic acid fiber, high moisture absorption technology, applied in the directions of non-fiber pulp addition, fiber raw material treatment, fiber dispersant addition, etc., can solve the problems of polylactic acid fiber moisture absorption effect that cannot meet demand, restrict development, etc., to improve moisture absorption effect, Effects of low adverse effects, high degree of crosslinking and mechanical properties

Inactive Publication Date: 2018-06-12
HEFEI C&P NONWOVEN PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polylactic acid fiber has the disadvantage that the moisture absorption effect cannot meet the demand, which has become a shortcoming restricting its development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of highly hygroscopic polylactic acid fiber used for medical paper towels, its raw materials include: polylactic acid 80g, compatibilizer 25g, wool fiber 6g, coconut fiber 9g, vermiculite powder 4g, white carbon black 4g, plasticizer 6g, coloring Agent 3g, lubricant 1g, dispersant 2.5g.

[0016] Plasticizers include: methyl silicone oil 2g, epoxy soybean oil 4g, disproportionated rosin 2g. The compatibilizer includes: 30g of gelatin compound, 0.6g of aluminum-zirconium coupling agent.

[0017] The gelatin composite was prepared by the following process: dry 30g of bamboo powder for 40min at a drying temperature of 120°C, pulverize, add 55g of 1.4mol / L sodium hydroxide solution and soak for 4h at a soaking temperature of 75°C, filter, dry, and add 100g Concentration 75wt% ethanol solution, 1g1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloric acid, 1.8gN-hydroxysulfosuccinimide mixed evenly, add 30g gelatin and stir for 8h, deionized water After washing, ...

Embodiment 2

[0019] A kind of highly hygroscopic polylactic acid fiber used for medical paper towels, its raw materials include: polylactic acid 100g, compatibilizer 15g, wool fiber 12g, coconut fiber 5g, vermiculite powder 8g, white carbon black 2g, plasticizer 12g, coloring Agent 2g, lubricant 2g, dispersant 1.5g.

[0020] Plasticizers include: methyl silicone oil 4g, epoxy soybean oil 2g, disproportionated rosin 4g. The compatibilizer includes: 20g of gelatin compound, 1g of aluminum-zirconium coupling agent.

[0021] The gelatin composite is prepared by the following process: dry 25g of bamboo powder for 60min at a drying temperature of 110°C, pulverize, add 75g of 1mol / L sodium hydroxide solution for 8 hours, soak at a temperature of 65°C, filter, dry, and add 140g of Mix 65wt% ethanol solution, 2g1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, and 1.2gN-hydroxysulfosuccinimide evenly, add 40g gelatin and stir for 4h, wash with deionized water Afterwards, it was freeze-...

Embodiment 3

[0023] A kind of highly hygroscopic polylactic acid fiber for medical paper towels, its raw material comprises: polylactic acid 85g, compatibilizer 22g, wool fiber 8g, coconut fiber 8g, vermiculite powder 5g, white carbon black 3.5g, plasticizer 8g, Coloring agent 2.8g, lubricant 1.2g, dispersant 2.2g.

[0024] The plasticizer includes: 2.5g of methyl silicone oil, 3.5g of epoxy soybean oil, and 2.5g of disproportionated rosin. The compatibilizer includes: 28g of gelatin compound and 0.7g of aluminum-zirconium coupling agent.

[0025] The gelatin composite is prepared by the following process: dry 28g of bamboo powder for 45min at a drying temperature of 118°C, pulverize, add 60g of 1.3mol / L sodium hydroxide solution and soak for 5h at a soaking temperature of 72°C, filter, dry, and add 110g Concentration 72wt% ethanol solution, 1.2g 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloric acid, 1.6g N-hydroxy sulfosuccinimide mixed evenly, add 33g gelatin and stir for 7h, ...

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Abstract

The invention discloses high-moisture-absorption polylactic acid fibers for medical paper towel. The high-moisture-absorption polylactic acid fibers are prepared from the following raw materials in parts by weight: 80 to 100 parts of plylactic acid, 15 to 25 parts of compatilizer, 6 to 12 parts of wool fibers, 5 to 9 parts of coconut fibers, 4 to 8 parts of vermiculite powder, 2 to 4 parts of white carbon black, 6 to 12 parts of plasticizer, 2 to 3 parts of coloring agent, 1 to 2 parts of lubricating agent, and 1.5 to 2.5 parts of dispersing agent. The compatilizer comprises the following components in parts by weight: 20 to 30 parts of gelatin compound, and 0.6 to 1 parts of aluminum-zirconium coupling agent. The gelatin compound is prepared by adopting the following process: drying bamboo powder, crushing, soaking in a sodium hydroxide solution, filtering, drying, adding an ethanol solution, 1-(3-dimethylamino amino)-3-ethylenediamine hydrochloride, and N-hydroxythiosuccinimide, uniformly mixing, then adding gelatin, stirring, cleaning, freeze drying, and crushing, thus obtaining the gelatin compound.

Description

technical field [0001] The invention relates to the technical field of medical paper towels, in particular to a highly hygroscopic polylactic acid fiber used in medical paper towels. Background technique [0002] Polylactic acid fiber is a bio-based chemical fiber made from corn and potato starch through a series of processes such as fermentation and purification. Due to the many advantages of polylactic acid fiber, it is environmentally friendly, biodegradable, and skin-friendly. Good, using polylactic acid fiber to produce medical paper towels, the effect is excellent. However, the polylactic acid fiber has the disadvantage that the moisture absorption effect cannot meet the demand, which has become a shortcoming restricting its development. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a highly hygroscopic polylactic acid fiber for medical paper towels, which has excellent hygroscopic per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21H13/24D21H13/34D21H11/12D21H17/68D21H17/67D21H17/62D21H17/59D21H17/21D21H17/22D21H21/14D21H21/08D21H21/18
CPCD21H11/12D21H13/24D21H13/34D21H15/10D21H17/21D21H17/22D21H17/59D21H17/62D21H17/67D21H17/68D21H21/08D21H21/14D21H21/18
Inventor 张德满
Owner HEFEI C&P NONWOVEN PROD
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