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Household paper and preparation method thereof

A technology for household paper and paper, which is applied in the field of papermaking, can solve the problems of insufficient, high strength, and few applications, and achieve the effects of improving comfort, high crystallinity, and low orientation

Pending Publication Date: 2021-11-02
金红叶纸业(湖北)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The paper made of wood pulp or wood pulp mixed with bamboo pulp, straw pulp, etc. in the market has the problem of high strength but not fluffy or soft enough
Compared with wood pulp, the cotton fiber contained in cotton pulp has good flexibility and elasticity. The paper made of cotton pulp is fine and soft, and has a high degree of opacity. However, cotton pulp is generally used to make special paper. less application in paper

Method used

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Examples

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preparation example Construction

[0042] Specifically, see figure 1 , figure 1 It is a schematic flow diagram of an embodiment of the preparation method of tissue paper of the present invention, in this embodiment, the method includes:

[0043] S11: Obtain the following raw materials in parts by weight: cotton pulp, 3-30 parts; the first wood pulp, 30-65 parts; the second wood pulp, 15-25 parts; wherein, the fiber length of the first wood pulp is less than that of the first wood pulp Second, the fiber length of wood pulp.

[0044] Wherein, the first wood pulp is short-fiber wood pulp, and the fiber length range of short-fiber wood pulp is 0.5-1.0 mm; the second wood pulp is long-fiber wood pulp, and the fiber length range of long-fiber wood pulp is 1.5-2.8 mm; The cotton pulp is cotton linters, and the fiber length of the cotton linters ranges from 1.2 to 1.8 mm.

[0045] In other embodiments of the present invention, the raw material may further include 0-30 parts by weight of other pulp, and the other pul...

Embodiment 1

[0061] The purpose of this example is to explore the impact of cotton pulp and short fiber wood pulp on the paper breaking length under the condition of reduced freeness.

[0062] The laboratory refining test was carried out on the cotton pulp fibers provided by the three suppliers, and the freeness-fracture long refining curve was made, and compared with the short fiber wood pulp.

[0063] Refining curve production method: use PFI refiner, adopt different refining speeds, refine the pulp to obtain pulp with different freeness; then use pulp with different freeness to make a quantitative rate of 30g / m 2 Test the fracture length of the handwritten sheet, and make a refining curve based on the obtained freeness and fracture length data.

[0064] Note: This is a laboratory simulation. After refining, the freeness of the slurry will decrease, and the smaller the fracture length of the handmade sheet, the smaller the strength of the handmade sheet and the softer the handwritten she...

Embodiment 2

[0070] The purpose of this example is to investigate the effect of the proportion of cotton pulp in the slurry on the strength of the paper.

[0071] After mixing the cotton pulp fibers and wood pulp fibers provided by the two suppliers in different proportions, the hand-sheets were made under laboratory conditions, and the weight of the hand-sheets was 30g / m 2 . Table 1 shows the test results of the hand-sheet strength.

[0072] Table 1 The influence of slurry ratio on the strength of handmade tablets

[0073] Slurry ratio BL(km) Strength reduction ratio (%) 100% wood pulp 4.46 —— Wood pulp: Cotton pulp-1=95:5 4.14 7.1 Wood pulp: Cotton pulp-1=90:10 3.91 12.4 Wood pulp: Cotton pulp-2=95:5 4.04 9.5 Wood pulp: Cotton pulp-2=90:10 3.89 12.8

[0074] Note: This is a laboratory simulation.

[0075] It can be seen from the above table that adding cotton pulp to the wood pulp fiber can effectively reduce the fracture length of ...

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Abstract

The invention discloses a household paper and a preparation method thereof. The household paper comprises, by weight, 3-30 parts of cotton pulp; 30-65 parts of first wood pulp; and 15-25 parts of second wood pulp. The fiber length of the first wood pulp is smaller than that of the second wood pulp; the first wood pulp is short fiber wood pulp, and the fiber length range of the short fiber wood pulp is 0.5-1.0 mm; the second wood pulp is long-fiber wood pulp, and the fiber length range of the long-fiber wood pulp is 1.5-2.8 mm; and the cotton pulp is cotton linter, and the fiber length of the cotton linter ranges from 1.2-1.8 mm. According to the invention, the cotton pulp with the fiber length between that of the short-fiber wood pulp and that of the long-fiber wood pulp is added into the pulp, the softening agent is added, the ceramic scraper is used, and the angle of the scraper is relatively low, so that the manufactured paper for daily use is softer and fluffy, and the use hand feeling of a user is improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a household paper and a preparation method thereof. Background technique [0002] Tissue paper is a necessity of life. With the improvement of people's living standards, people's demand for tissue paper shows a trend of multi-functionality. For example, facial tissue is required to have a certain strength and also have a soft touch. The most commonly used pulp for tissue paper is wood pulp. In recent years, with the advancement of tissue papermaking technology and the upgrading of consumer demand, pulp such as bamboo pulp and straw pulp has also been used to make tissue paper. [0003] The paper made of wood pulp or a mixture of wood pulp and bamboo pulp, straw pulp, etc. in the market has the problem of high strength but not fluffy or soft enough. Compared with wood pulp, the cotton fiber contained in cotton pulp has good flexibility and elasticity. The paper made of cotton...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/12D21H11/00D21H15/06D21H21/14D21H21/20
CPCD21H27/005D21H11/12D21H11/00D21H15/06D21H21/14D21H21/20
Inventor 李江玉王亚娟黄锦华韩寅
Owner 金红叶纸业(湖北)有限公司
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