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Synchronous printing production method for grainy paper

A production method and technology for wood-grained paper, applied in printing, printing devices, etc., can solve the problems of quality uniformity and yield cannot be guaranteed, high labor costs, simple process, etc., to ensure market competitiveness and yield. High, easy-to-control effects

Inactive Publication Date: 2012-12-19
TIANJIN ZHONGYUAN DECORATION MATERIALS
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In the past, ordinary materials were usually used to make wood grain paper, which was made by 2-3 times of gravure printing and 1-3 times of constant temperature drying. However, due to the simple process, its clarity and three-dimensional effect could not meet people's expectations and ideals. Moreover, in the mechanized production process, the process is relatively complicated, the labor cost is high, and the quality uniformity and yield control cannot be guaranteed.

Method used

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Examples

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Comparison scheme
Effect test

no. 1 example

[0014] In this embodiment, the base paper selected in the material selection step is printing decorative paper, and its manufacturer is Zhejiang Xiawang Paper Industry, and the model specification is 70g. The expansion coefficient is an important factor that affects whether the printing texture can be overlapped, and the base paper is the biggest factor affecting the expansion coefficient. The main raw material of the base paper is pulp, and the pulp has a certain absorption capacity. During printing, the moisture content, calendering, deviation, ash content, and air permeability of the base paper will all affect the expansion coefficient, so screening raw materials is the most important link in the production of synchronous wood grain paper. The expansion coefficient, specifically, is to prepare a 2M*2M water tank, fill the water tank with water, then cut the base paper into a piece with a length of 1.5M in length and a length of 1.25M in width, and immerse it in the water tan...

no. 2 example

[0026] The selected base paper is printing decorative paper, and the model is the same as that of the first embodiment. The length of the cut base paper is 1.5M vertically and 1.25M horizontally. Take it out after immersing it in the water tank for 1 minute, and measure the horizontal and vertical expansion numbers with a tape measure. Its transverse expansion coefficient is 1.6%, and its longitudinal expansion coefficient is 0.7%. The selected base paper has a pH value of 6.5 and a water absorption rate of 3%.

[0027] For the printing step, in the second embodiment of the present invention, two colors, yellow and red, are used for overprinting, and their respective viscosities are 17s and 15s. The printing speed of the paper gravure coating machine should be controlled at 125M / min, the receiving tension at 22%, the discharging tension at 15%, the printing pressure at 4.5Mpa, and the blade angle at 43°.

[0028] Its specific preparation process is similar to the above-mentio...

no. 3 example

[0031] The selected base paper is printing decorative paper, the model is the same as above, the length of the cutting base paper is 1.5M in length and 1.25M in width, soak it in the water tank for 1 minute, take it out, measure the expansion number in the transverse and longitudinal directions with a tape measure, and the expansion coefficient in the transverse direction is 2 %, the longitudinal expansion coefficient is 0.5%, the pH value of the selected base paper is 7.5, and the water absorption rate is 4%.

[0032] For the printing step, in the third embodiment of the present invention, three colors are used for overprinting, yellow, blue and red, and their viscosities are respectively 18s, 21s and 20s. The printing speed of the paper gravure printing coating machine is 130M / min, and its receiving tension is controlled at 25%, and its unwinding tension is controlled at 17%. Control the printing pressure at 4.8Mpa, and control the blade angle at 47°.

[0033] Its specific ...

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Abstract

The invention discloses a synchronous printing production method for grainy paper. The synchronous printing production method includes steps of sorting and printing. In the step of sorting, printed decorative paper serves as body paper, the pH (potential of hydrogen) value of the printed decorative paper ranges from 6.5 to 7.5, the water absorption is controlled within 3%-4%, the transverse expansion coefficient ranges from 1.6% to 2%, and the longitudinal expansion coefficient ranges from 0.5% to 0.7%. In the step of printing, a Beiren PAZJ401300 type main gravure printing and coating machine for paper is utilized, the printing ink viscosity ranges from 15S to 27S, the printing speed ranges from 120M / min to 130M / min, the receiving tension is controlled within 20%-25%, the discharging tension is controlled within 12%-17%, the printing pressure ranges from 4.2Mpa to 4.8Mpa, and the angle of a scraper ranges from 43 degrees to 47 degrees. Raw materials are sorted severely in the step of sorting, so that stable running of the follow-up step of printing can be guaranteed effectively, and the pass rate of products is higher than 99%.

Description

technical field [0001] The invention relates to the technical field of wood grain paper, in particular to a method for producing synchronous wood grain paper printing. Background technique [0002] Synchronous wood grain paper is a new type of high-end wood floor decorative paper. The performance requirements of this paper are higher than those of ordinary printing paper. In the past, ordinary materials were usually used to make wood grain paper, which was made by 2-3 times of gravure printing and 1-3 times of constant temperature drying. However, due to the simple process, its clarity and three-dimensional effect could not meet people's expectations and ideals. Moreover, in the mechanized production process, the process is relatively complicated, the labor cost is high, and the quality uniformity and yield control cannot be guaranteed. Contents of the invention [0003] The object of the present invention is to provide a synchronous wood grain paper printing production m...

Claims

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Application Information

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IPC IPC(8): B41M1/10
Inventor 刘加晨
Owner TIANJIN ZHONGYUAN DECORATION MATERIALS
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