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Paper making process for precoating water transfer printing base paper

A papermaking process, water transfer printing technology, applied in papermaking, papermaking, textiles and papermaking, etc., can solve the problems of unclear printing patterns, dependence on imports, rough surface, etc.

Active Publication Date: 2008-10-22
WEIFANG HENGLIAN SPECIALTY PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic production of base paper for water transfer printing is of low grade, rough surface, and poor dimensional stability. After gluing, the release time is inconsistent, and the printing pattern is not clear. Only some products with lower quality requirements can be transferred and printed. , and the production of high-end transfer printing products requires high-end backing paper, and high-end backing paper needs to be produced with high-grade base paper. At present, this kind of high-end base paper in China depends on imports, which is expensive and cannot meet the high-end demand of the market.

Method used

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  • Paper making process for precoating water transfer printing base paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 2800kg of clear water and 200kg of denatured oxidized starch to the glue pot, stir evenly, slowly heat up and boil, when the temperature rises to 98°C, keep it warm for 15 minutes, then cool down to 69°C, stir evenly, filter to obtain a surface sizing solution, and set aside .

[0033] Pulping is pulverized by a hydraulic pulper, with 2.6mm bleached kraft softwood long-fiber wood pulp and short-fiber wood pulp with a fiber length of 1.1mm bleached kraft softwood, and the weight ratio is long-fiber wood pulp: short Fiber wood pulp = 3:7, pulverized by a hydropulper, adding a charge enhancer with a concentration of 14% when pulping, and the amount per ton of paper is 10kg, transferred to the pre-knock pool, passed through a double-disc mill beater, beating, current 380A, The beating concentration is 4.0%, the beating degree is 23°SR, and the slurry is prepared, and then the wet strength agent with a concentration of 1.0% is added, and the amount of paper per ton is 10...

Embodiment 2

[0038] Add 2900kg of clear water and 190kg of denatured oxidized starch to the glue pot, stir evenly, slowly heat up and boil, when the temperature rises to 100°C, keep it warm for 16 minutes, and then cool down to 70°C to prepare a surface sizing solution for later use;

[0039] Pulping is pulverized by a hydraulic pulper, with 2.7mm bleached kraft softwood long-fiber wood pulp and short-fiber wood pulp with a fiber length of 1.2mm bleached kraft softwood, and the weight ratio is long-fiber wood pulp: short Fiber wood pulp = 2:8, pulverized by a hydraulic pulper, adding a charge enhancer with a concentration of 15% when pulping, and the amount of paper per ton is 11kg, transferred to the pre-knock pool, and beaten by a double-disc mill beater with a current of 390A , the beating concentration is 3.9%, and the beating degree is 24°SR. After obtaining the pulp, add a wet strength agent with a concentration of 0.95%, and the amount of paper per ton is 110kg. Mix evenly, pass thr...

Embodiment 3

[0044] Add 2800kg of clear water and 210kg of denatured oxidized starch to the glue pot, stir evenly, slowly heat up and boil, when the temperature rises to 105°C, keep it warm for 18 minutes, then cool down to 75°C, stir evenly, filter to obtain a surface sizing solution, spare.

[0045] Pulping is pulverized by a hydraulic pulper, with 2.6mm bleached kraft softwood long-fiber wood pulp and short-fiber wood pulp with a fiber length of 1.0mm bleached kraft softwood, and the weight ratio is long-fiber wood pulp: short Fiber wood pulp = 2:8, pulverized by a hydropulper, adding a charge enhancer with a concentration of 15% when pulping, and the amount per ton of paper is 12kg, transferred to the pre-knock pool, passed through a double-disc mill beater, beating, current 400A, The beating concentration is 4.3%, the beating degree is 25°SR, and the pulp is prepared, and then the wet strength agent with a concentration of 1.1% is added, and the amount of paper per ton is 100kg. Stir ...

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Abstract

The invention relates to paper and a process for making the same, in particular to a process for making precoated water transfer printing paper base paper. The process comprises the following steps that: after steps of crushing, pulp beating, pulp mixing, screening and purification, on-screen forming, dewatering and drying, surface glue blending and winding and parting cut, materials are turned into base paper; after steps of base paper coating, press finishing and rewinding, the base paper is turned into the precoated water transfer printing paper base paper. The process of the invention has the advantages of simple technological flow, smooth paper surface, good stiffness, stable printing dimension, big differences of both paper surfaces on water absorption, good tensile strength, short decoating time and even decoating.

Description

technical field [0001] The invention relates to a papermaking process, in particular to a papermaking process for base paper of precoated water transfer printing base paper. Background technique [0002] With the rapid development of social economy and the continuous improvement of people's material and cultural living standards, people have higher and higher requirements for personalized printing. Traditional printing technology, whether it is lithography or gravure printing, can only be used for flat printing, but not three-dimensional printing. However, water transfer printing technology can be carried out on flat objects and three-dimensional curved objects, realizing the combination of flat printing and three-dimensional printing. Effect. Many products involve water transfer printing, such as mobile phone cases, footballs, helmets, ceramics, toys, cups, golf clubs and other uneven and difficult-to-print objects can use water transfer printing. At present, the domestic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/02D21F11/00D21H19/00D21H25/08D21H15/10D21H21/20D21H21/16D21H19/38
Inventor 盛秀华姚瑞先潘玉香汤志久
Owner WEIFANG HENGLIAN SPECIALTY PAPER
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