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A kind of preparation method of high-strength kitchen paper

A high-strength technology for kitchen paper, which is applied in the field of preparation of high-strength kitchen paper, can solve the problems of bamboo pulp stiffness, etc., and achieve the effects of reducing stiffness, reducing fiber loss, and reducing the precipitation of fine fibers

Active Publication Date: 2022-05-13
CHONGQING LIWEN SANITARY PAPER MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to address the deficiencies of the prior art, to provide a method for preparing high-strength kitchen paper, the kitchen paper prepared by the method has greatly improved dry strength and wet strength, and has good softness and water absorption , and solve the problem of bamboo pulp stiffness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of high-strength kitchen paper of the present embodiment comprises the following steps:

[0023] Step a. Mix bleached coniferous wood kraft pulp, bamboo pulp and water at a weight ratio of 40:50:1, and then transport the mixed pulp to a pulp tower added with softening liquid to fully soak and moisten it. The soaking time is 32 hours , and then wash and dehydrate, separate the softening liquid, and obtain a fully moistened slurry; wherein: the amount of softening liquid is 20g / L mixed slurry, which is made by mixing raw materials in the following mass percentages: sodium peroxide 15%, sodium sulfite 2 %, 0.15% disodium edetate, 1.2% sodium di-sec-octyl maleate sulfonate and the rest of water.

[0024] Step b. The fully moistened slurry is first deslagged by a high-concentration slag remover, then dehydrated by a thickening device to make the concentration of the slurry reach 23%, and then transported to a pulper for beating, while adding a ma...

Embodiment 2

[0028] A kind of preparation method of high-strength kitchen paper of the present embodiment comprises the following steps:

[0029] Step a. Mix bleached softwood kraft pulp, bamboo pulp and water in a weight ratio of 45:56:2, and then transfer the mixed pulp to a pulp tower with softening liquid to fully soak and moisten it. The soaking time is 36 hours , and then wash and dehydrate, separate the softening solution, and obtain a fully moistened slurry; wherein, the softening solution consumption is 16g / L mixed slurry, which is made by mixing raw materials in the following mass percentages: sodium peroxide 17%, sodium sulfite 1 %, 0.1% disodium edetate, 1.5% sodium dioctyl maleate sulfonate and the balance of water.

[0030] Step b. The fully moistened slurry is first deslagged by a high-concentration slag remover, then dehydrated by a thickening device to make the concentration of the slurry reach 25%, and then transported to a pulper for beating, while adding a mass concentr...

Embodiment 3

[0034] A kind of preparation method of high-strength kitchen paper of the present embodiment comprises the following steps:

[0035] Step a. Mix bleached coniferous wood kraft pulp, bamboo pulp and water in a weight ratio of 30:45:3, and then transfer the mixed pulp to a pulp tower added with softening liquid to fully soak and moisten it. The soaking time is 28 hours , then wash and dehydrate, separate the softening solution, and obtain a fully moistened slurry; wherein, the amount of softening solution is 10g / L mixed slurry, which is made by mixing the following raw materials in mass percentages: sodium peroxide 18%, sodium sulfite 3 %, 0.25% disodium edetate, 0.5% sodium di-sec-octyl maleate sulfonate and the rest of water.

[0036] Step b. The fully moistened slurry is first deslagged by a high-concentration slag remover, then dehydrated by a thickening device to make the concentration of the slurry reach 22%, and then transported to a pulper for beating, while adding a mas...

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Abstract

The invention relates to the technical field of household paper, in particular to a preparation method of high-strength kitchen paper, which comprises the steps of using bleached coniferous wood kraft pulp and bamboo pulp in a certain proportion as main raw materials, and fully soaking them in softening liquid first moistening; then add a biological enzyme with a mass concentration of 8-12ppm for beating; then add chitosan acetate 0.5-3.5%, starch-acrylic acid graft copolymer 0.2-0.8%, mixed slurry 93.9-98%, Cationic polyacrylamide 0.2-0.6%, glyoxal polyacrylamide resin 0.2-0.6% and carboxymethyl cellulose sodium 0.2-0.6% are mixed evenly; finally, it goes through spraying, molding, pressing, drying and coiling processes in sequence Get kitchen paper. The kitchen paper prepared by the invention has greatly improved dry strength and wet strength, has good softness and water absorption, and solves the problem of bamboo pulp stiffness.

Description

technical field [0001] The invention relates to the technical field of household paper, in particular to a preparation method of high-strength kitchen paper. Background technique [0002] In recent years, kitchen paper has been used more and more in places such as kitchens and cooking to replace dishcloths for wiping tableware, wiping off seasoning droplets and food residues, as well as absorbing vegetable juices that flow out from cutting vegetables and oil protection when frying foods. ring. Therefore, kitchen paper should not only have a certain strength when dry, but even in a wet state, in order to facilitate wiping operations, it must also have a certain wet strength, and at the same time have a certain degree of softness and water absorption. However, if better softness is to be obtained, the paper strength will be lost to a great extent, and if better strength is to be obtained, softness will be sacrificed. In the current papermaking process, softness and strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21B1/34D21C5/00D21H11/04D21H11/12D21H17/46D21H17/55D21H21/06
CPCD21B1/345D21C5/005D21H11/04D21H11/12D21H17/46D21H17/55D21H21/06D21H27/00
Inventor 李文俊
Owner CHONGQING LIWEN SANITARY PAPER MFG CO LTD
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