Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-allergenic fully-degradable medical and hygienic non-woven material capable of adjusting moisture

A medical and hygienic, fully degradable technology, applied in the field of medical and hygienic non-woven materials, can solve the problems of different performance consumer groups and final application fields, complex production processes, etc., and achieve good non-allergenic, bacteriostatic and deodorizing functions. , good strength, good antibacterial and deodorant effects

Active Publication Date: 2014-07-09
CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Looking at the existing literature and materials, the degradable medical and sanitary materials developed are mainly based on the spunbond method, and some production processes are also relatively complicated. Different fields of application

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-allergenic fully-degradable medical and hygienic non-woven material capable of adjusting moisture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The length of tencel fiber is 5mm, the fineness is 3.3dtex, the concentration of the web-forming slurry is controlled to be 0.04%, the beating time is 65 minutes, the degree of beating is controlled to be 50°SR, and the degree of fibrillation of the tencel fiber reaches 60%. The weight of non-woven paper is 9 grams per square meter, and the tensile strength is 0.2KN / m. Select the polylactic acid fiber with a length of 38mm and a fineness of 2.2dtex. First, the polylactic acid fiber is pretreated. The pretreatment process is: spray the polylactic acid fiber with 8% of the total fiber weight of the antistatic agent mixture, and the antistatic agent mixture is determined by mass. It is composed of 3% antistatic agent and 97% water by mass, and then covered with plastic cloth and stuffed for 28 hours for soft moisture absorption treatment, so that the moisture regain of polylactic acid fiber reaches 8%. Then the polylactic acid fiber is mixed and opened, fed and carded, and c...

Embodiment 2

[0037] The length of tencel fibers is selected to be 3mm, the fineness is 2.2dtex, the concentration of the web-forming slurry is controlled to be 0.03%, the beating time is 70 minutes, the beating degree is controlled to be 55°SR, and the degree of fibrillation of the tencel fibers reaches 65%. The non-woven paper has a weight of 15 grams per square meter and a tensile strength of 0.35KN / m. Select the polylactic acid fiber with a length of 38mm and a fineness of 1.67dtex. First, the polylactic acid fiber is pretreated. The pretreatment process is: spray the polylactic acid fiber with 5% of the total fiber weight of the antistatic agent mixture, and the antistatic agent mixture is determined by mass. It is composed of 2% antistatic agent and 98% water by mass, and then covered with plastic cloth and stuffed for 24 hours for soft moisture absorption treatment, so that the moisture regain of polylactic acid fiber reaches 5%. Then, the polylactic acid fiber is mixed and loosened,...

Embodiment 3

[0043] The length of tencel fiber is 6mm, the fineness is 3.3dtex, the concentration of web-forming slurry is controlled to be 0.05%, the beating time is 90 minutes, the degree of beating is controlled to be 65°SR, and the degree of fibrillation of tencel fiber reaches 55%. The non-woven paper has a weight of 18 grams per square meter and a tensile strength of 0.48KN / m. Select the polylactic acid fiber with a length of 51mm and a fineness of 3.3dtex. First, the polylactic acid fiber is pretreated. The pretreatment process is: spray the polylactic acid fiber with 5% of the total fiber weight of the antistatic agent mixture, and the antistatic agent mixture is determined by mass. It is composed of 2% antistatic agent and 98% water by mass, and then covered with plastic cloth and stuffed for 24 hours for soft moisture absorption treatment, so that the moisture regain of polylactic acid fiber reaches 8%. Then, the polylactic acid fiber is mixed and loosened, fed and carded, and cr...

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
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a non-allergenic fully-degradable medical and hygienic non-woven material capable of adjusting moisture, and aims to solve the problem that the conventional degradable medical and hygienic materials are mainly made by a spunbonding method, and certain production processes are complex. The non-allergenic fully-degradable medical and hygienic non-woven material consists of the following raw materials of 60 to 80 mass percent of polylactic acid fibers and 20 to 40 mass percent of Tencel fibers and is prepared by the following steps of: preparing Tencel fiber non-woven paper by a wet laying method, wherein part of the Tencel fiber non-woven paper is fibrillated; pre-treating the polylactic acid fibers and preparing a polylactic acid fiber web; unreeling the non-woven paper on the polylactic acid fiber web once again, interweaving the fibrillated Tencel fibers with the polylactic acid fiber web by a high-pressure spraying method, and fibrillating the Tencel fibers further; and drying at proper temperature to bind the fibrillated Tencel fibers to the periphery of the polylactic acid fibers firmly. The non-allergenic fully-degradable medical and hygienic non-woven material has the characteristics of non-allergenic property and capacity of adjusting the moisture, and can be degraded fully after being discarded.

Description

technical field [0001] The invention relates to disposable medical and sanitary materials, such as medical dressings, gauze, sanitary napkins, panty liners, etc., in particular to a non-sensitizing, moisture-climate regulating function, antibacterial and deodorizing, breathable and smooth, strong and durable Fully biodegradable nonwovens for medical and hygiene applications. Background technique [0002] Disposable medical and sanitary materials refer to disposable medical consumables such as bandages, gauze and medical sheets used in hospitals; disposable sanitary products are also called absorbent disposable products, including women's sanitary napkins, sanitary pads, baby diapers, Adult diapers and other adult incontinence products, pet pads, and more. In recent years, the consumption of sanitary napkins in my country has reached more than 70 billion pieces per year, more than 27 billion pieces of panty liners, and more than 12 billion pieces of diapers. The annual waste...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D04H13/00D21F11/14D21D1/02D06B19/00
Inventor 钱程
Owner CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com