A papermaking method for in-machine coating of base paper for water transfer printing paper bottom paper

A technology of water transfer paper and coating, which is applied in papermaking, paper machine, textile and papermaking, etc. It can solve the problems of low output and slow stripping time, achieve high smoothness and surface performance, improve performance, and stripping fast effect

Active Publication Date: 2018-02-23
HAINAN JINHAI PULP & PAPER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a papermaking method for in-machine coating of base paper for water transfer printing paper, which solves the problem of slow release time, low Technical issues with low yield

Method used

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  • A papermaking method for in-machine coating of base paper for water transfer printing paper bottom paper
  • A papermaking method for in-machine coating of base paper for water transfer printing paper bottom paper
  • A papermaking method for in-machine coating of base paper for water transfer printing paper bottom paper

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Experimental program
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Effect test

Embodiment 1

[0021] like figure 1 As shown, a papermaking method for in-machine coating of base paper for water transfer printing paper, including stock preparation, wet end system, sandwich paper machine, pre-drying, surface sizing, post-drying, coating, coiling and cutting, etc. , where the coating includes primer coating and top coating, and all sections are continuous production equipment connected to each other. Specific steps are as follows:

[0022] 1) Stock preparation: bleached kraft hardwood pulp, bleached kraft softwood pulp and chemical-mechanical pulp are all dispersed and refined at a concentration of 4%. Mix and prepare slurry at a ratio of 75%:15%:10%.

[0023] 2) Wet end: After the slurry is mixed, add 40kg / t wet strength agent at the entrance of the pulp tank. The addition of wet strength agent mainly improves the wet strength of the paper after soaking; then add 8kg / t positive starch at the outlet of the pulp tank, The main purpose is to improve the dry strength, and ...

Embodiment 2

[0034] A papermaking method for in-machine coating of base paper for water transfer printing paper base paper, the specific steps are as follows:

[0035] 1) Stock preparation: bleached kraft hardwood pulp, bleached kraft softwood pulp and chemical-mechanical pulp are all dispersed and refined at a concentration of 4%, and the freeness of refining is 450ml, 400ml, 350ml respectively, and then mixed The tubes are mixed with a ratio of 80%:15%:15%.

[0036] 2) Wet end: After the slurry is mixed, add 50kg / t of wet strength agent at the entrance of the pulp forming tank. The addition of wet strength agent mainly improves the wet strength of the paper after soaking; then add 10kg / t of positive starch at the exit of the pulp forming tank, The main purpose is to improve the dry strength, and the slurry enters the head box after being screened and purified;

[0037] 3) Sandwich paper machine: The sandwich paper machine includes head box, forming wire, and press section; the slurry is...

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Abstract

The invention discloses a method for making in-machine coated water transfer base paper, comprising the stations such as a pulp preparation station, a wetting system, a twin wire paper machine, a pre-drying station, a surface gluing station, a post-drying station, a coating station and a reel-cutting station; coated water transfer base paper is produced directly on the twin wire paper machine that is high in speed and yield, the yield is up to higher than 3000 tons per day which is far higher than that of a present domestic common fourdrinier that has a daily capacity of 200 tons per day. After being coated, the water transfer body paper produced herein allows high stripping speed, stripping time is up to 30 seconds, and high smoothness and good surface performance of the body paper provide better properties for products.

Description

technical field [0001] The invention relates to the technical field of producing water transfer printing bottom paper, in particular to a papermaking method for in-machine coating of water transfer printing bottom paper base paper. Background technique [0002] At present, the production of water transfer printing paper mainly adopts fourdrinier paper machines with relatively low speed and output, and they all produce uncoated base paper for water transfer printing bottom paper first, and produce coated base paper for water transfer printing bottom paper by coating outside the machine ; There are mainly the problems of low output, complicated production process and low production efficiency. [0003] At present, the domestic water transfer printing paper production patent has the application number CN201310425405, which is called a C-level coated water transfer bottom paper base paper papermaking process, and the application number is CN200810016590, which is called a pre-co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21H11/02D21H11/04D21H17/29D21H21/20D21H21/16D21H23/56D21H23/34D21H19/38D21H19/40
CPCD21F11/00D21H11/02D21H11/04D21H17/29D21H19/385D21H19/40D21H21/16D21H21/20D21H23/34D21H23/56
Inventor 梁昌良黄俊彦何传棋翁浥程
Owner HAINAN JINHAI PULP & PAPER
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