Colored household paper and preparation method thereof

A household paper and color technology, applied in the field of papermaking, can solve the problems of large amount of dye, weak dyeing, uneven dyeing, etc., and achieve the effects of uniform dyeing, firm bleeding, and firm light fastness

Pending Publication Date: 2021-09-28
SHANDONG TAIYANGZHIYE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dyeing techniques such as cultural paper and wrapping paper are relatively common, and mainly include pulp dyeing such as roller coating. The main disadvantages are that the dyeing is not firm, the amount of dyestuff is large, the color fades with water, and the environmental pollution caused by the large amount of water used for dyeing after paper is finished.
With the development of technology, in-pulp dyeing has gradually become the mainstream, but it is applied to cultural paper, packaging paper and other heavy paper types or cardboards without exception. If the weight is large, dyeing will also occur if the technology is not in place. Uniformity, bleeding is not firm, not fast to light and other problems
[0004] Most of the technological process is under acidic conditions, which conflicts with the medium-alkaline papermaking process. If the production is changed, it will bring many difficulties in papermaking, such as system string washing
The process is established, and there are many added materials, which do not meet the relevant specifications for household paper used in close contact with the human body

Method used

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  • Colored household paper and preparation method thereof
  • Colored household paper and preparation method thereof
  • Colored household paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Prepare 13 g / ㎡ tissue paper, Garnet Red as described above.

[0063] The bleached kraft hardwood pulp is eucalyptus eucalyptus pulp with an aspect ratio of 48.

[0064] The bleached kraft softwood pulp is Korean pine: spruce wood pulp (7:3), aspect ratio 80.

[0065] The mass ratio of bleached kraft softwood pulp: bleached kraft hardwood pulp is 35:65.

[0066] The degree of beating of the bleached kraft hardwood pulp is 22°SR, and the concentration: 4.2% by mass.

[0067] Freeness of bleached kraft softwood pulp: 27°SR, concentration: 4.5% by mass.

[0068] Even beating degree: 32°SR, concentration: 3.5% by mass.

[0069] Paper machine speed: 1500m / min, crepe rate 11%.

[0070] The used direct dye model: Scarlet R, directly diluted with condensed water to a 6.5% by mass solution after filtration and added for use. The flow rate of the liquid supply pump is 13200ml / min.

[0071] The fixing agent uses aluminum sulfate: the incoming material concentration is 8% by m...

Embodiment 2

[0078] A 15 g / ㎡ tissue paper, purple, was prepared as described above.

[0079] The bleached kraft hardwood pulp is eucalyptus pulp, mainly (blue eucalyptus, bright fruit eucalyptus) = 8:2, aspect ratio 52.

[0080] Bleached kraft softwood pulp is radiata loose pulp with an aspect ratio of 83.

[0081] The mass ratio of bleached kraft softwood pulp: bleached kraft hardwood pulp is 30:70.

[0082] The degree of beating of the bleached kraft hardwood pulp is 22°SR, and the concentration: 4.2% by mass.

[0083] The bleached kraft softwood pulp has a beating degree of 30°SR and a concentration of 4.5% by mass.

[0084] Even beating degree: 35°SR, concentration: 3.5% by mass.

[0085] Paper machine speed: 1400m / min, crepe rate 12%.

[0086] The model of the direct dye used: Violet B, directly diluted with condensed water to be 6.5% by mass solution after filtration and added for use. The flow rate of the liquid supply pump is 11500ml / min.

[0087] The fixing agent uses alumin...

Embodiment 3

[0094] 18 g / ㎡ tissue paper, light green, was prepared as described above.

[0095] The bleached kraft hardwood pulp is eucalyptus pulp, mainly (blue eucalyptus, bright fruit eucalyptus) = 8:2, aspect ratio 52.

[0096] Bleached kraft softwood pulp is radiata loose pulp with an aspect ratio of 83.

[0097] The mass ratio of bleached kraft softwood pulp: bleached kraft hardwood pulp is 26:74.

[0098] The degree of beating of the bleached kraft hardwood pulp is 20°SR, and the concentration is 4.2% by mass.

[0099] Freeness of bleached kraft softwood pulp: 30°SR, concentration: 4.5% by mass.

[0100] Even beating degree: 30°SR, concentration: 3.4% by mass.

[0101] Paper machine speed: 1100m / min, crepe rate 13%.

[0102] The type of direct dye used: light green N, directly diluted with condensed water to a 6.5% by mass solution and added after filtration. The flow rate of the liquid supply pump is 8500ml / min.

[0103] The fixing agent uses aluminum sulfate: the incoming ma...

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PUM

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Abstract

The invention provides a preparation method of colored household paper. The preparation method comprises the following specific steps: (1) pulp dispersing; (2) deslagging and pulping; (3) proportioning and dyeing; (4) grinding again; (5) color fixation; (6) forming on a net; (7) squeezing; (8) drying; (9) wrinkling; and (10) coiling. According to the invention, the use of a small amount of dyes under the low gram weight is ensured, and uniform dyeing, good paper forming, fastness to light, fastness to bleeding and low white water load are ensured.

Description

technical field [0001] The disclosure relates to the field of papermaking, in particular to a colored household paper and a preparation method thereof. Background technique [0002] With the development of society and economy, the demand for paper towels as fast-moving consumer goods is increasing day by day, which brings about the increase in usage and the improvement of people's consumption level. It is no longer satisfied with the demand for wiping. More and more market segments have been brought to the mainstream consumption of primary wood pulp tissue paper. Colored napkins have gradually appeared in high-end hotels, restaurants, etc., and have grown into a part of modern people's pursuit of individuality and publicizing the colors of life. [0003] Dyeing techniques such as cultural paper and wrapping paper are relatively common, and mainly include pulp dyeing such as roller coating. The main disadvantages are that the dyeing is not firm, the amount of dye is large, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/04D21H21/28D21H21/14D21H23/08D21H23/78D21H17/66D21F11/00A47K10/16
CPCD21H27/002D21H11/04D21H21/28D21H21/14D21H23/08D21H23/78D21H17/66D21F11/00A47K10/16
Inventor 罗士余刘猛贾荣智藏亚伟孟双
Owner SHANDONG TAIYANGZHIYE
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