Yellow card paper and manufacturing method thereof

A manufacturing method, the technology of yellow cardboard, is applied in the direction of paper, papermaking, papermaking machines, etc., and can solve the problems of small pollution load, non-standard discharge, and difficult wastewater treatment.

Inactive Publication Date: 2014-12-10
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surface dyeing, the dye can be recycled, and the pollution load is small; if the dye is added to the pulp, the paper is prone to color difference, and the wastewater treatment is difficult and costly
At present, many domestic production enterprises are forced to shut down because they fail to meet the emission standards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Beat the bleached kraft wood pulp and the bleached kraft reed pulp to the degree of percussion: kraft wood pulp 38 0 SR, kraft reed pulp 36 0 SR; 20% kraft wood pulp, 40% kraft reed pulp, 40% poplar PRC-APMP for pulping, adding 50kg / t of paper fillers accounting for 50% of PCC and GCC, adding 1kg / t of paper dye frozen yellow , 60g / t paper dye bright red, CPAM dosage is 0.32kg / ton paper, cationic starch dosage is 12kg / ton paper, AKD dosage is 15kg / t paper. The paper material is made by papermaking, calendered and finished by soft rollers, coiled, and rewinded to obtain color cardboard. Paper making process: net speed 150m / min, pulp net speed difference, 10±8m / min, lip opening 10-12mm; press first crimp pressure 500-600KN / m, second crimp pressure: 600-700KN / m; Three crimping pressure: 600~700KN / m; Tension of dry net in drying section: 3~4KN / m; Paper moisture: 6~8%; Calendering temperature: 100℃; Pressure 100KN / m; Coiling tension: 300N / m, line pressure: 3.5~2.8KN / m. T...

Embodiment 2

[0010] Beat the bleached kraft wood pulp and the bleached kraft reed pulp respectively to the degree of percussion: kraft wood pulp 36 0 SR, kraft reed pulp 34 0 SR; 15% kraft wood pulp, 45% kraft reed pulp, 40% poplar PRC-APMP for pulping, adding 50kg / t of paper fillers accounting for 50% of PCC and GCC, adding 1kg / t of paper dye frozen yellow , 60g / t paper dye bright red, CPAM dosage is 0.32kg / ton paper, cationic starch dosage is 12kg / ton paper, AKD dosage is 15kg / t paper. The paper material is made by papermaking, calendered and finished by soft rollers, coiled, and rewinded to obtain color cardboard. Paper making process: net speed 150m / min, pulp net speed difference, 10±8m / min, lip opening 10-12mm; press first crimp pressure 500-600KN / m, second crimp pressure: 600-700KN / m; Three crimping pressure: 600~700KN / m; Tension of dry net in drying section: 3~4KN / m; Paper moisture: 6~8%; Calendering temperature: 100℃; Pressure 100KN / m; Coiling tension: 300N / m, line pressure: 3....

Embodiment 3

[0012] Beat the bleached kraft wood pulp and the bleached kraft reed pulp to the degree of percussion: kraft wood pulp 40 0 SR, kraft reed pulp 38 0 SR; 25% kraft wood pulp, 40% kraft reed pulp, 35% poplar PRC-APMP for pulping, adding 50kg / t of paper fillers accounting for 50% of PCC and GCC, adding 1kg / t of paper dye frozen yellow , 60g / t paper dye bright red, CPAM dosage is 0.32kg / ton paper, cationic starch dosage is 12kg / ton paper, AKD dosage is 15kg / t paper. The paper material is made by papermaking, calendered and finished by soft rollers, coiled, and rewinded to obtain color cardboard. Paper making process: net speed 150m / min, pulp net speed difference, 10±8m / min, lip opening 10-12mm; press first crimp pressure 500-600KN / m, second crimp pressure: 600-700KN / m; Three crimping pressure: 600~700KN / m; Tension of dry net in drying section: 3~4KN / m; Paper moisture: 6~8%; Calendering temperature: 100℃; Pressure 100KN / m; Coiling tension: 300N / m, line pressure: 3.5~2.8KN / m. T...

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Abstract

The invention relates to a yellow card paper and a manufacturing method thereof. The manufacturing method is mainly characterized by comprising the following steps: respectively preparing bleached sulfate softwood pulp, bleached sulfate reed pulp and poplar PRC-APMP pulp; making paper from the bleached sulfate softwood pulp, the bleached sulfate reed pulp and the poplar PRC-APMP pulp according to the weight ratio of (15%-25%) to (35%-45%) to (35%-40%); optimizing dye types and different dye ratios; and with a CPAM and cationic starch retention system, carrying out soft roll calendaring treatment. The prepared yellow card paper has the characteristics that the fixed amount is 103-106g / m<2>, the thickness is greater than or equal to 140 microns, the moisture content is 4%-6%, the hygroscopic property is smaller than or equal to 30g / m<2>, the transverse folding strength is greater than or equal to 6 times, the transverse expansion rate is smaller than or equal to 3.2%, the longitudinal fracture length is greater than or equal to 3500m, the smoothness is greater than or equal to 20s, the two side difference is smaller than or equal to 30%, the b value is 26, and the content of dust of 0.2mm<2> to 1.5mm<2> is smaller than or equal to 60 / m<2>. The yellow card paper disclosed by the method is stable in hue and low in cost.

Description

technical field [0001] The invention relates to a yellow cardboard and a manufacturing method thereof. Background technique [0002] The color cardboard is further dyed or embossed for the packaging of handicrafts such as gift boxes and jewelry boxes. The paper requires higher thickness, uniform dyeing and consistent hue. [0003] The production of color cardboard mainly adopts two processes of adding dyes in the pulp and surface dyeing. Surface dyeing, the dye can be recycled, and the pollution load is small; if the dye is added to the pulp, the paper is prone to color difference, and the wastewater treatment is difficult and costly. At present, many domestic production enterprises are forced to shut down because they fail to meet the discharge standards. Yueyang Forestry & Paper Co., Ltd. mainly adopts the method of natural sedimentation to remove part of the suspended solids and large particles of impurities, and then adds inorganic and organic coagulants, and uses hig...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21H21/30D21H21/16D21H17/67D21H17/29D21H21/10D21F11/00
Inventor 朱宏伟周金涛刘成良
Owner YUEYANG FOREST & PAPER CO LTD
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