On-line silk screen printing process for paper production

Abstract

This invention relates to a paper production online screen-printing process, which combines the paper production and rolling screen-printing and processes the printing on the current paper production to realize the continuous paper production. The invention comprises the following steps: plasm making; round net paper shaping; compressing; pre-drying; surface coating; gas cushion and drying; softening; water scanning; printing; rolling; entering base.

Description

technical field

[0001] The invention relates to an online screen printing process for paper production. Background technique

[0002] At present, the papermaking production process is to roll the paper after pulping, circular net forming, pressing, pre-drying, surface trough sizing, air cushion drying, soft calendering, moisture scanning detection, and slitting. Finish. Special markers in the paper, such as watermarks, security lines, etc., are formed in the network groove of the paper machine.

[0003] Ordinary screen printing is that after the finished paper is fed, printed, hot air dried or UV cured, the paper is collected into the stack, put into the product warehouse, and turned over after 24 hours. The production process is long, the floor area is large, there are many machine operators, and the production cycle is more than 40 hours, which is time-consuming and laborious. Ordinary screen printing can only print single-sheet products, and cannot print continuous pat...

Examples

Embodiment Construction

[0028] The invention combines papermaking production with cylinder screen printing, performs online screen printing in the existing paper production process, and realizes online screen printing for continuous paper production. The specific process steps are as follows

[0029] pulping. Garden net papermaking forming. press. Pre-dry. Surface sizing, surface sizing can be trough sizing, roller sizing or spraying, etc. The trough sizing process is simple and low in cost. Air cushion drying, hot air drying can be used for drying, but UV curing is generally used, which has high drying efficiency, short time, less water loss for online paper production, and small footprint. Soft calendering. Moisture scan detection. Printing process: There are two links of printing and drying. Specifically, printing processes such as screen printing, offset printing, gravure printing or missing printing can be used. Carry out roll paper and put it into storage. Before rolling the paper, it c...

technical field

[0001] The invention relates to an online screen printing process for paper production. Background technique

[0002] At present, the papermaking production process is to roll the paper after pulping, circular net forming, pressing, pre-drying, surface trough sizing, air cushion drying, soft calendering, moisture scanning detection, and slitting. Finish. Special markers in the paper, such as watermarks, security lines, etc., are formed in the network groove of the paper machine.

[0003] Ordinary screen printing is that after the finished paper is fed, printed, hot air dried or UV cured, the paper is collected into the stack, put into the product warehouse, and turned over after 24 hours. The production process is long, the floor area is large, there are many machine operators, and the production cycle is more than 40 hours, which is time-consuming and laborious. Ordinary screen printing can only print single-sheet products, and cannot print continuous pat...

Examples

Embodiment Construction

[0028] The invention combines papermaking production with cylinder screen printing, performs online screen printing in the existing paper production process, and realizes online screen printing for continuous paper production. The specific process steps are as follows

[0029] pulping. Garden net papermaking forming. press. Pre-dry. Surface sizing, surface sizing can be trough sizing, roller sizing or spraying, etc. The trough sizing process is simple and low in cost. Air cushion drying, hot air drying can be used for drying, but UV curing is generally used, which has high drying efficiency, short time, less water loss for online paper production, and small footprint. Soft calendering. Moisture scan detection. Printing process: There are two links of printing and drying. Specifically, printing processes such as screen printing, offset printing, gravure printing or missing printing can be used. Carry out roll paper and put it into storage. Before rolling the paper, it c...