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A preparation method for improving the softness of household paper

A technology for household paper and softness, which is applied in papermaking, paper machines, textiles and papermaking, etc. It can solve the problems affecting paper texture, improper control of wrinkling process, affecting paper softness and hand feeling, etc., and achieves the goal of reducing fiber loss Effect

Active Publication Date: 2021-11-16
CHONGQING LIWEN SANITARY PAPER MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of them use a single debonding type softener, which has a great influence on the strength of the paper, and the prepared paper feels rough; on the other hand, the bamboo pulp is used as the main raw material for household paper. In addition, the existing tissue paper is not properly controlled in the creping process, which affects the texture of the paper, which further affects the softness and feel of the paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method for improving the softness of household paper according to this embodiment comprises the following steps:

[0027] Step a, in terms of mass percentage, mix 45% bamboo pulp and 55% wood pulp, and add 0.6kg / t paper softening agent and 0.8kg / t paper lubricating softener to obtain mixed pulp material.

[0028] Step b, transport the mixed slurry to the soaking tower with softening liquid to fully soak and moisten it, the soaking time is 24h, and the amount of softening liquid is 20g / L mixed slurry; then wash and dehydrate, separate the softening liquid, and obtain fully runnable slurry;

[0029] The softening liquid is made by mixing the following raw materials in mass percentage:

[0030] Sodium peroxide 15%

[0031] Sodium sulfite 2%

[0032] Disodium EDTA 0.15%

[0033] Sodium di-sec-octyl sulfonate maleate 1.2%

[0034] water balance.

[0035] Then, the fully moistened slurry is firstly deslagged by a high-concentration slag remover, and then ...

Embodiment 2

[0041] A preparation method for improving the softness of household paper according to this embodiment comprises the following steps:

[0042] Step a, in terms of mass percentage, mix 50% bamboo pulp and 50% wood pulp, and add 1.2kg / t paper softening agent and 0.2kg / t paper lubricating softener to obtain mixed pulp material.

[0043] Step b, transport the mixed slurry to the soaking tower with softening liquid, fully soak and moisten it, the soaking time is 28h, and the amount of softening liquid is 16g / L mixed slurry; then wash and dehydrate, separate the softening liquid, and obtain fully Moisturized slurry.

[0044] The softening liquid is made by mixing the following raw materials in mass percentage:

[0045] Sodium peroxide 17%

[0046] Sodium sulfite 1%

[0047] Disodium EDTA 0.1%

[0048] Sodium Di-Se-Octyl Sulfonate Maleate 1.5%

[0049] water balance;

[0050] The fully moistened slurry is firstly deslagged by a high-concentration slag remover, and then dehydra...

Embodiment 3

[0056] A preparation method for improving the softness of household paper according to this embodiment comprises the following steps:

[0057]Step a, in terms of mass percentage, mix 65% bamboo pulp and 35% wood pulp, and add 1.8kg / t paper softening agent and 0.5kg / t paper lubricating softener to obtain mixed pulp material.

[0058] Step b, transport the mixed slurry to the soaking tower with softening liquid to fully soak and moisten it, the soaking time is 36h, and the amount of softening liquid is 10g / L mixed slurry; then wash and dehydrate, separate the softening liquid, and obtain fully Moisturized slurry.

[0059] The softening liquid is made by mixing the following raw materials in mass percentage:

[0060] Sodium peroxide 18%

[0061] Sodium sulfite 3%

[0062] Disodium EDTA 0.25%

[0063] Sodium di-sec-octyl sulfonate maleate 0.5%

[0064] water balance;

[0065] The fully moistened slurry is firstly deslagged by a high-concentration slag remover, and then dehy...

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Abstract

The present invention relates to the technical field of household paper, in particular to a preparation method for improving the softness of household paper. lubricating softener to obtain mixed slurry; then fully soaking in softening solution to moisten and stretch; adding enzyme auxiliary when beating by high-consistency refiner, and controlling the beating temperature to be 52-58 ℃ and pH to be 8.5-9.5, the preparation Make a pulp with a beating degree of 30-33°; the diluted pulp is sprayed on the forming mesh to form a paper web, and then dewatered and dried in sequence to obtain a paper web with a certain dryness; The beveled creping blade contacts the surface of the drying cylinder to peel off the paper web, and after the peeled paper web is wound up, tissue paper is obtained. The tissue paper prepared by the present invention can obviously improve the softness, the texture of the paper web is smooth and the hand feeling is good.

Description

technical field [0001] The invention relates to the technical field of household paper, in particular to a preparation method for improving the softness of household paper. Background technique [0002] For household paper, softness is one of the important properties of paper. In the prior art, improving the softness of household paper mainly relies on adding chemical softeners in paper production. The main function of chemical softeners is to interfere with the bonding between fibers. It is not easy to degrade and can irritate human skin. At present, most of them use a single debonding type softener, which has a great influence on the strength of the paper, and the prepared paper feels rough; on the other hand, bamboo pulp is used as the main raw material for household paper, and the bamboo pulp is stiff In addition, the existing household paper has improper control of the creping process, which affects the texture of the paper, thereby further affecting the softness and f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00
CPCD21F11/00
Inventor 李文俊
Owner CHONGQING LIWEN SANITARY PAPER MFG CO LTD