Antibacterial waterproof wallpaper prepared by recycling fibers from paper diaper leftover materials and preparation method

A technology of leftover materials and diapers, which is applied in the field of pulp and papermaking, can solve the problems of complex production process, adding chemical types, blanks, antibacterial, moisture-proof and waterproof effects, etc., so as to improve social and economic benefits, good strength performance, and improve recycling value effect

Inactive Publication Date: 2019-11-12
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current research results, the related technology of preparing wallpaper base paper from diaper scrap fiber as raw material is still blank; the existing wallpaper production process is complicated, there are many types of chemicals added, and the antibacterial, moisture-proof and waterproof effects are unknown

Method used

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  • Antibacterial waterproof wallpaper prepared by recycling fibers from paper diaper leftover materials and preparation method
  • Antibacterial waterproof wallpaper prepared by recycling fibers from paper diaper leftover materials and preparation method
  • Antibacterial waterproof wallpaper prepared by recycling fibers from paper diaper leftover materials and preparation method

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preparation example Construction

[0040] The present invention also provides a method for preparing the antibacterial and waterproof wallpaper prepared by recycling the leftover fibers of diapers, and the specific steps are as follows:

[0041] Step 1, pulverizing the leftover fiber of the diaper and dissolving it in water, then adding polyaluminum chloride, bentonite, zeolite powder, and nano-titanium dioxide in order to fully stir, and then dispersing to obtain a fiber slurry;

[0042] In step 1, the mass ratio of diaper scrap fiber, polyaluminum chloride, bentonite, zeolite powder, and nano-titanium dioxide is: 100:0.5-0.8:0.3-1.0:0.1-0.5:10-40; wherein, the particle size of zeolite powder The size is 100 mesh-200 mesh, the particle size of nano-titanium dioxide is 20nm-100nm, it is anatase type;

[0043] Step 2, papermaking the fiber slurry treated in step 1 as the antibacterial-deodorant base layer of the wallpaper;

[0044] The specific implementation of step 2 is as follows:

[0045] First, use a stir...

Embodiment 1

[0065] 1) Collect the pulverized diaper scrap fiber as the raw material for the experiment, which comes from the diaper manufacturer.

[0066]2) Take 3.3 grams of the pulverized sample of diaper scrap fiber, add it to 500ml of water, use a deflagging machine, decompose at 25,000 rpm, add water until the slurry concentration reaches 0.5%, use a paper sampler to make paper, dry at 105°C, and make paper piece as a blank sample. Take 3.3 grams of the pulverized sample of diaper scrap fiber, add it to 300ml of water, and weigh 0.5% polyaluminum chloride relative to the mass of diaper scrap fiber, bentonite relative to 1.0% of the mass of diaper scrap fiber, and 1.0% of the weight of diaper scrap fiber. 0.5% zeolite powder and 40% nano-titanium dioxide relative to the fiber quality of paper diaper scraps, and add it to the fiber slurry, add water to 500ml, stir evenly, and then use a deflagging machine to decompose at 25,000 rpm, wait After the fiber disentanglement is completed, t...

Embodiment 2

[0071] Get 3.3 grams of diaper scrap fiber pulverized samples, add 300ml of water, then weigh the polyaluminum chloride relative to the mass of diaper scrap fiber 0.7%, the bentonite relative to the mass of diaper scrap fiber of 0.5%, and the relative weight of diaper scrap fiber. 0.1% zeolite powder and 10% nano-titanium dioxide relative to the fiber quality of paper diaper scraps, and add it to the fiber slurry, add water to 500ml, stir evenly, and then use a deflagging machine to decompose at 25,000 rpm. After the fiber disentanglement is completed, the fiber slurry is obtained; then the fiber slurry treated in step 1 is stirred evenly with a stirrer, and then added to the paper sample extractor, and water is added to make the mass concentration of the slurry reach 0.5% on the Internet, and water is released to make it It becomes a wet paper web, then press it manually with a pressure roller, and finally put it into a paper dryer, and dry it at a temperature of 105°C for 5 m...

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Abstract

The invention discloses antibacterial waterproof wallpaper prepared by recycling fibers from paper diaper leftover materials. The antibacterial waterproof wallpaper comprises an antibacterial-deodorant base layer; a waterproof and insect-proof coating is arranged on the back surface of the antibacterial and odor-resistant base layer; and an antibacterial coating is arranged on the front surface ofthe antibacterial-deodorant base layer. The invention further discloses a preparation method of the wallpaper. The preparation method specifically comprises the following steps: step 1, preparing fiber pulp; 2, carrying out papermaking on the fiber slurry treated in the step 1 to form an antibacterial-deodorant base layer of the wallpaper; step 3, preparing a ternary composite sizing agent; 4, applying the ternary composite sizing agent obtained in the step 3 to the front surface of the paper obtained in the step 2 by using a sizing machine to form an antibacterial coating on the front surface of the antibacterial-deodorant base layer; and step 5, applying the mixed solution to the back surface of the wallpaper, feeding the wallpaper into a glazing dryer for drying and calendaring so as to form the waterproof and insect-proof coating on the back surface of the antibacterial-deodorant base layer, thereby obtaining the antibacterial-deodorant wallpaper. The method is simple, and the functional effect of the finished product is obvious.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and in particular relates to an antibacterial waterproof wallpaper prepared from recycled diaper scrap fibers; the invention also relates to a preparation method of the antibacterial waterproof wallpaper prepared from recycled diaper scrap fibers. Background technique [0002] With the improvement of people's material and cultural living standards, people's requirements for the viewing, comfort and environmental protection of home and office environments are also gradually increasing. As one of the decorative materials for home and office environments, wallpaper is in increasing demand year by year. Workers in the industry are committed to improving the applicability of wallpaper, improving the functionality of wallpaper, and advocating the environmental protection of raw materials. At present, the achievements are: an environmentally friendly antibacterial and mildew-proof wallpa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/20D21F11/00D21H21/36D21H21/16D21H25/04D21H25/06
CPCD21H27/20D21F11/00D21H21/36D21H21/16D21H25/04D21H25/06
Inventor 王念东薛俭孟卿君张素风刘汉斌
Owner SHAANXI UNIV OF SCI & TECH
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