A kind of moisture-proof high air-permeability non-woven wallpaper and its preparation method

A moisture-proof, high-permeability technology, applied in textiles and papermaking, papermaking, paper machines, etc., can solve problems such as easy discoloration and mildew, difficult to clean, and affect decorative effects, so as to avoid airtightness, good air permeability, and moisture resistance high effect

Active Publication Date: 2016-06-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because this kind of wallpaper is made of wood pulp, it has the characteristics of wood swelling and shrinking when wet, its performance is not particularly stable, and there is no dense protective layer. Therefore, it is waterproof, mildew-proof, stain-resistant, wear-resistant and The cleanability is poor, and it is easy to change color and mildew in a humid environment, and it is difficult to clean after being stained with oil, which affects the decorative effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Raw material ratio and process conditions of a non-woven wallpaper:

[0035] In terms of the mass percentage of raw materials, the pulp ratio: the upper layer is softwood pulp (3%), cotton fiber (3%), hemp fiber (1.5%), birch fiber (1.5%) and eucalyptus pulp (9%) ) mixed; the middle layer is coniferous wood waste fiber (13.5%) and eucalyptus wood waste fiber (10.5%); the lower layer is polyester (6%), nylon (4.5%), acrylic fiber (3%) and polypropylene fiber (4.5%) . The upper, middle and lower layers of the slurry account for 60% of the total mass of raw materials, and then the chemical additives account for 40%;

[0036]Fibers in the upper slurry include long fibers and short fibers; short fibers are eucalyptus fibers and birch fibers; long fibers are coniferous wood, cotton fibers and hemp fibers; the mass ratio of long and short fibers is 1:1. Control the cutting length of long fibers at about 160mm, and the cut length of short fibers at about 75mm. Use a fiber sie...

Embodiment 2

[0053] Raw material ratio and process conditions of a non-woven wallpaper:

[0054] Based on the mass percentage of raw materials, the pulp ratio: the upper layer is softwood pulp (16%), eucalyptus pulp (3%), birch fiber (3%), cotton fiber (3%) and hemp fiber (3%) ) mixed; the middle layer is coniferous wood waste pulp (14%) and eucalyptus waste pulp (9%); the lower layer is polyester (5%), nylon (3%), acrylic fiber (5%), vinylon (1.5%) , polyvinyl chloride (1.5%) and polypropylene (3%). In the slurry, the sum of the upper, middle and lower layers accounts for 70% of the total amount, and then the chemical additives account for 30% of the total amount;

[0055] The upper layer of pulp was beaten by free type, and then measured with Xiao-type beating degree meter, the beating degree of eucalyptus was 20.5°SR, the beating degree of coniferous wood was 21°SR, and the mass ratio of long and short fibers was 2:1. The cut length of the cut fiber is about 170mm, and the cut fiber o...

Embodiment 3

[0068] Raw material ratio and process conditions of a non-woven wallpaper:

[0069] In terms of the mass percentage of raw materials, the pulp ratio: the upper layer is mixed with softwood pulp (8%) and eucalyptus pulp (12%); the middle layer is made of softwood pulp (11%) and eucalyptus pulp (4%) %); the lower layer is polyester (6%), nylon (5%), acrylic (5%), vinylon (1.5%), polyvinyl chloride (1.5%) and polypropylene (1%). In the slurry, the sum of the upper, middle and lower layers accounts for 55% of the total amount, and then the chemical additives account for 45% of the total amount;

[0070] The beating degree of eucalyptus was 21°SR and that of coniferous wood was 20°SR after adopting free beating on the upper layer. During the beating process, the mass ratio of long and short fibers was controlled to be 5:8. The cut fiber of the fiber is about 65mm. After the middle layer is viscous beating, the beating degree of eucalyptus waste pulp is 21.5°SR, and the beating deg...

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Abstract

The invention discloses a piece of moisture-proof highly-breathable non-woven wallpaper and a preparation method thereof. The method comprises the following steps: respectively placing waste fibers, plant fibers and chemical fibers into a first stock chest, a second stock chest and a third stock chest; adding a packing, a sizing agent and a wet strength agent; forming a non-woven wallpaper upper layer through the plant fibers; respectively placing mixed solutions in the three stock chests into fluffers to be defibered, respectively adding a retention aid into the stock chests filled with the mixed stock after defibering, uniformly stirring the mixtures, and then adopting the inclined wire processing technology to achieve layered stock intake; respectively feeding the three layers of stock into flow boxes, subjecting the stock to water filtration and retention on a forming wire to form a wet paper web, drying to obtain an upper layer of body paper, an intermediate layer of body paper and a lower layer of body paper, which are different from one another, coating paste starch among the body paper, adding a flame retardant, and then drying to obtain the moisture-proof highly-breathable non-woven wallpaper. The non-woven wallpaper has favorable air permeability, moisture resistance and fungus resistance, and is good in stability, resistant to impact, free of deformation and excellent in coverage.

Description

technical field [0001] The invention relates to a wallpaper, in particular to a non-woven wallpaper with moisture resistance and high air permeability and a preparation method thereof, belonging to the field of papermaking technology. Background technique [0002] In the market, wallpapers made of natural materials such as grass, wood, cotton, hemp, silk, etc., and processed by modern technology, firmly occupy the wallpaper with their superior performance, natural texture, and colorful styles. high-end market. But once the air is humid in spring and summer, the wall tide rises greatly or the wallpaper is accidentally stained with water, the local size of the wallpaper will change, and other forms of deformation will occur, such as curling, wrinkling and forming waves, etc., after a long time It is prone to micro-delamination, which seriously affects the quality of wallpaper. At the same time, it is very troublesome to replace the wallpaper. It requires a large area of ​​wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21H15/10
CPCD21F11/00D21H15/10
Inventor 樊慧明王硕刘建安
Owner SOUTH CHINA UNIV OF TECH
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