Method for improving coating operation efficiency and coating paper
A technology of operation efficiency and coating, which is applied in the field of papermaking, can solve the problems that it is difficult to achieve continuous, stable and efficient improvement of coating operation efficiency, and the effect is small, so as to achieve the effect of improving coating operation efficiency
Inactive Publication Date: 2016-03-30
GOLD EAST PAPER JIANGSU
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Problems solved by technology
The in-depth development of the above-mentioned adjustment measures can achieve the purpose of partially improving the coating operation efficiency, but the effect is very small. From another perspective, the above-mentioned adjustment measures cannot start from the source of the improvement, which is a typical passive improvement. It is difficult to achieve the goal of continuous, stable and efficient improvement of coating operation efficiency
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[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] figure 1 It is a flowchart of a method for improving coating operation efficiency according to an embodiment of the present invention. It should be noted that if there are substantially the same results, the method of the present invention does not figure 1 The flow sequence shown is limited. Such as figure 1 As shown, the method includes the following steps:
[0019] Step S101: Refining the long-fiber pulp, short-fiber pulp and mechanical pulp so that the refining freeness of the long-fiber pulp is 340-400ml, the refining freeness of the short-fiber pulp is 330-370ml, and the refining of the mechanical pulp The pulp freeness is 300-350ml.
[0020] In step S101, the long fiber pulp (NBPK) is at least one of spruce, fir and hemlock, and the long fiber pulp is subjected to refining treatment so that the long fiber pulp has a refining freenes...
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Abstract
The invention provides a method for improving coating operation efficiency and coating paper. The method comprises: grinding long fibered pulp, short fibered pulp and mechanical pulp to enable the grinding freeness of the long fibered pulp, short fibered pulp and mechanical pulp to be 340-400ml, 330-370ml and 300-350ml respectively; mixing the ground long fibered pulp, short fibered pulp and mechanical pulp to form mixed pulp; and adding internal addition starch into the mixed pulp to form raw coating paper with the air permeability reaching a predetermined range. According to the method, the raw coating paper in a coating stage is uniformly diffused after being rewetted due to moisture, thereby facilitating uniform coverage of a coating on the surface of the raw coating paper and ensuring the coating operation efficiency to be continuous and efficient.
Description
technical field [0001] The invention relates to the field of papermaking, in particular to a method for improving coating operation efficiency and coated paper. Background technique [0002] With the continuous and rapid development of science and technology and social production, papermaking technology has developed rapidly. For the coated paper industry, under the premise of continuous improvement in quality, how to improve the efficiency of coating operation in a more reasonable way and achieve the double improvement of quality and production capacity is an urgent problem to be solved. [0003] At present, how to improve the efficiency of coating operation is usually more focused on the adjustment of the coating section. The main improvement measures are: optimizing the coating formula, selecting a well-matched coating scraper material (such as steel knife, alloy knife Ceramic knives, etc.), rationally distribute the coating amount of each coating head, optimize the coat...
Claims
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Login to View More IPC IPC(8): D21H15/10D21H17/28
CPCD21H15/10D21H17/28
Inventor 笪远大王正平翟凤卫王小平葛燕翔
Owner GOLD EAST PAPER JIANGSU