Side offset paper and preparation method thereof

A technology of double-adhesive paper and guar gum, applied in the field of papermaking, can solve the problems of easy occurrence of hair loss, powder loss, unnatural color tone of finished paper, high calcium carbonate consumption, and achieve product quality, pure color and less dust. Effect

Active Publication Date: 2011-08-17
ASIA SYMBOL GUANGDONG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, in order to reduce the production cost, the amount of calcium carbonate is high, and the quality problems of hair loss and powder loss are prone to occur during printing; in order to obtain higher whiteness, the amount of whitening agent and dye is high, and the color of the finished paper is unnatural.

Method used

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  • Side offset paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of offset paper; calculated according to the content per ton of paper, the ratio of the raw materials used is:

[0046] (1), fiber slurry 1 680kg,

[0047] Including: 10% bleached chemical softwood pulp, 80% high white chemical hardwood pulp and 10% high white chemical pulp;

[0048] (2), wet end chemicals,

[0049] Including: shell powder 350kg, cationic starch 9kg, whitening agent (stilbene triazine derivative with 4 sulfonic acid groups) 10kg, AnKD 0.8kg, retention aid PAM 0.2kg, defoamer (ether defoamer ) 0.5kg, fungicide (trichloroisocyanuric acid) 0.5kg, pigment 0.05kg;

[0050] The shell powder has a whiteness of 90-92%, a particle size of ≤2 μm and a content of 40%, 325-mesh sieve residue: ≤0.5%, pH value: 6-8, and dark foreign matter ≤20 pieces / 100g;

[0051] (3), adhesive,

[0052] Including: 45kg of raw starch, 0.02kg of amylase, and 4kg of guar gum.

[0053] The method for preparing the double-adhesive paper; including fiber slurry treatment proc...

Embodiment 2

[0066] A kind of offset paper; calculated according to the content per ton of paper, the ratio of the raw materials used is:

[0067] (1), fiber slurry 1 750kg,

[0068] Including: 15% bleached chemical softwood pulp, 70% high white chemical hardwood pulp and 15% high white chemical pulp;

[0069] (2), wet end chemicals,

[0070] Including: shell powder 300kg, cationic starch 10kg, whitening agent (stilbene triazine derivative with 2 sulfonic acid groups) 6.7kg, AnKD 1.1kg, retention aid PAM0.2kg, defoamer (ether defoamer agent) 0.9kg, fungicide (dichloroisocyanuric acid) 1.0kg, pigment 0.15kg;

[0071] The shell powder has a whiteness of 90-92%, a particle size of ≤2 μm and a content of 40%, 325-mesh sieve residue: ≤0.5%, pH value: 6-8, and dark foreign matter ≤20 pieces / 100g;

[0072] (3), adhesive,

[0073] Including: 40kg of raw starch, 0.03kg of amylase, and 5kg of guar gum.

[0074] The preparation method is the same as in Example 1.

Embodiment 3

[0076] A kind of offset paper; calculated according to the content per ton of paper, the ratio of the raw materials used is:

[0077] (1), fiber slurry 1 700kg,

[0078] Including: 12% bleached chemical softwood pulp, 75% high white chemical hardwood pulp and 13% high white mechanical pulp;

[0079] (2), wet end chemicals,

[0080] Including: shell powder 340kg, cationic starch 9kg, whitening agent (stilbene triazine derivative with 6 sulfonic acid groups) 7kg, AnKD 0.8kg, retention aid PAM0.3kg, defoamer (ether defoamer ) 1.0kg, fungicide (sodium hypochlorite) 1.2kg, pigment 0.1kg;

[0081] The shell powder has a whiteness of 90-92%, a particle size of ≤2 μm and a content of 40%, 325-mesh sieve residue: ≤0.5%, pH value: 6-8, and dark foreign matter ≤20 pieces / 100g;

[0082] (3), adhesive,

[0083] Including: 42.6kg of raw starch, 0.04kg of amylase, and 4kg of guar gum.

[0084] The preparation method is the same as in Example 1.

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Abstract

The invention relates to the technical field of papermaking, in particular to a side offset paper produced by shell powder and a preparation method thereof. In the side offset paper, high-whiteness hard wood pulp and high-whiteness chemical-mechanical pulp serve as the main material, and meanwhile, shell powder is auxiliary filler for producing the side offset paper; oxidized Cual is added into surface amylopectin to improve the printing surface strength of the side offset paper and avoid the defects of printing hair slip and duslting because of high paper forming ash content; meanwhile, the paper forming printing adaptability and dirty resistance can be obviously improved; and the colorful printing quality of the product is substantially improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to offset paper produced by using shell powder and a preparation method thereof. Background technique [0002] Double offset paper is a kind of paper that we use more commonly in our daily life; at present, the production of double offset paper is mainly as follows: [0003] (1) The double-adhesive paper production technology using acid sizing technology usually uses bleached coniferous pulp and bleached hardwood pulp as the main raw materials, and 5-40% of other pulp types can also be added, such as: straw pulp, reed pulp , bamboo pulp, BCTMP, CTMP, APMP, waste paper deinking pulp (for example, application number: 200410023263.0 invention name is special pigment finishing offset paper and its manufacturing method), etc. When talcum powder is used for filling, rosin and aluminum sulfate are used for sizing treatment; when chemicals such as cationic starch, polyacrylamide (Polys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/10D21H21/16D21H17/32D21H17/17
Inventor 许正茂王乐祥方桦李情兰
Owner ASIA SYMBOL GUANGDONG PAPER
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