Two-side offset paper for printing

A technology of double-coated paper and sizing agent, which is applied in the field of papermaking, can solve the problems of weakened bonding force between fibers and reduced folding endurance of double-coated paper, and achieves the effects of avoiding interference, enriching the quantity and improving the strength of the system.

Inactive Publication Date: 2017-11-17
常州苏达欧包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: the addition of fillers such as calcium carbonate weakens the bonding force between fibers, and the hard filler pa...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Put the rice husks into a frozen pulverizer, pulverize them for 30 minutes, and discharge them to obtain rice husk fibers; add pine wood pulp and biogas slurry into the fermenter at a mass ratio of 20:1, stir and mix at a speed of 400 r / min for 20 minutes, Seal the fermenter, and leave it to ferment for 10 days at a temperature of 32°C to obtain fermented wood pulp; then take 80 parts of hardwood pulp, 40 parts of softwood pulp, and 20 parts of fermented wood pulp in parts by weight. Pulp, after stirring and mixing with a mixer for 30min at a speed of 600r / min, beating, beating until the degree of beating is 45 ° SR, to obtain wood pulp; then add cationic starch of 5% wood pulp quality to the wood pulp, and use a mixer at 500r / min min speed of stirring and mixing for 30 minutes, then add water to the wood pulp to dilute to a wood pulp mass fraction of 3%, to obtain a diluted wood pulp; Preservative with a mass of 0.4% and rice husk fiber with a mass of 0.6 times the mas...

example 2

[0026] Add rice husk and water into the fermenter at a mass ratio of 1:15, and add biogas slurry 0.2 times the mass of rice husk, stir and mix at a speed of 400r / min for 30min, seal the fermenter, and place it at a temperature of 32°C , sealed and left to ferment for 15 days, filtered to obtain the filter residue, washed the filter residue 5 times with deionized water, then transferred the washed filter residue to a frozen pulverizer, pulverized for 30 minutes, and discharged to obtain rice husk fibers, and then the rice husk Add fiber and bleach to a three-necked flask at a mass ratio of 1:80, and move the three-necked flask into a digital speed measuring constant temperature magnetic stirrer, at a temperature of 55°C and a speed of 500r / min, stir and react at a constant temperature for 6 hours, and wait for the reaction to complete , filter to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filt...

example 3

[0028] Add rice husk and water into the fermenter at a mass ratio of 1:15, and add biogas slurry 0.2 times the mass of rice husk, stir and mix at a speed of 400r / min for 30min, seal the fermenter, and place it at a temperature of 32°C , sealed and left to ferment for 15 days, filtered to obtain the filter residue, washed the filter residue 5 times with deionized water, then transferred the washed filter residue to a frozen pulverizer, pulverized for 30 minutes, and discharged to obtain rice husk fibers, and then the rice husk Add fiber and bleach to a three-necked flask at a mass ratio of 1:80, and move the three-necked flask into a digital speed measuring constant temperature magnetic stirrer, at a temperature of 55°C and a speed of 500r / min, stir and react at a constant temperature for 6 hours, and wait for the reaction to complete , filter to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a two-side offset paper for printing, and belongs to the technical field of paper making. Rice hulls, water and biogas slurry are stirred and mixed, sealing, standing and fermentation are carried out, filtration, washing, freezing and smashing are carried out, rice hull fiber is obtained, the rice hull fiber and a decolorizer are stirred and reacted at a constant temperature, the product is filtered, washed and dried to constant weight to form modified rice hull fiberfill, pine wood pulp and biogas slurry are mixed, sealed, kept in a standing mode and fermented to form fermented wood pulp, hardwood pulp and softwood pulp are added, stirring, mixing and pulping are carried out to obtain wood pulp, cationic starch is added, stirring and mixing are carried out, water is added for dilution, diluted wood pulp is obtained and then evenly mixed with a retention agent, a preservative and the modified rice hull fiberfill, a netting working procedure is finished, dehydration and shaping are carried out, ground paper is formed, sizing liquid is prepared from a sizing agent and water, the surface of the ground paper is coated with the sizing liquid, drying, rolling and cutting are carried out, and finally the two-side offset paper for printing is obtained. The two-side offset paper for printing has the beneficial effects of having excellent folding resistance, high folding strength and good mechanical performance.

Description

technical field [0001] The invention relates to offset paper for printing and belongs to the technical field of papermaking. Background technique [0002] Offset paper refers to printing paper, also called offset paper. Offset paper is generally made of bleached chemical softwood pulp and an appropriate amount of bamboo pulp. Some high-grade offset papers also need surface sizing and calendering. Offset paper uses the principle of water-ink balance when printing, so the paper needs to have good water resistance, dimensional stability and strength. Offset paper is mostly used for color printing. In order for the ink to restore the color tone of the original, it is required to have a certain degree of whiteness and smoothness. Offset paper is generally used for printing picture albums, color illustrations, high-end books and booklets, etc. However, due to the multi-layer structure, the bonding force between layers is poor, and it is easy to be layered; and because the pape...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D21H27/00D21H15/10D21H11/20D21H11/00D21H17/29D21H21/16D21H21/38D21H21/10D21C5/00D21C9/12D21C9/16
CPCD21H27/00D21C5/005D21C9/12D21C9/163D21H11/00D21H11/20D21H15/10D21H17/29D21H21/10D21H21/16D21H21/38
Inventor 陈军方晓俊许蘅
Owner 常州苏达欧包装材料有限公司
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