Paper coloring process of sizing machine

Abstract

The invention discloses a sizing machine paper coloring process, which comprises: 1) taking a dye according to a weight part, adding into a first container with a spiral stirrer, adding 4-5 times by weight of clear water, and starting the spiral stirrer to carry out stirring until the dye is completely dissolved in the clear water so as to form an initial mixed solution; (2) transferring the stirred initial mixed solution into a second container which is also provided with a spiral stirrer, and starting the stirrer to stir the initial mixed solution again so as to ensure that the solution is more uniform and a mixed solution is formed; and 3) pumping the mixed solution into a sizing machine through a metering pump, and coloring the paper through the sizing machine.

Description

Technical Field

[0001] The invention relates to the technical field of paper processing, in particular to a paper coloring process of a sizing machine. Background Art

[0002] As an important cultural product and packaging material, paper often needs to be colored during production and application to meet different aesthetic and usage requirements. However, the existing pulp coloring process has a series of defects, which affect the quality and production efficiency of the product. Specifically, the traditional paper coloring process has problems such as uneven color, low dyeing efficiency, and dye waste, which affect the quality and production efficiency of the product, including:

[0003] 1) The traditional pulp coloring process often adopts intermittent dyeing. Each color tone needs to be washed in the pulp tank and paper machine, which not only affects the continuity of production, but also reduces production efficiency. At the same time, the intermittent dyeing method also increases pulp waste and production costs;

[0004] 2) In actual production, the dyeing effect of pulp is affected by many factors, such as pulp ratio, pulp beating degree, pulp pH value, dye dosage and addition method, etc. If these factors are not handled properly, it is easy to cause uneven paper dyeing, color spots, patterns, two-sidedness and other quality problems. This not only affects the appearance of the product, but also may reduce its performance.

[0005] Therefore, it is particularly important to develop an efficient and uniform paper coloring process. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a paper coloring process of a sizing machine.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is a paper coloring process of a sizing machine, comprising the following steps:

[0008] Step 1) taking a dye by weight and adding it to a No. 1 container with a spiral stirrer, then adding 4-5 times the weight of clean water, turning on the spiral stirrer to stir until the dye is completely dissolved in the clean water to form an initial mixed solution;

[0009] Step 2) transferring the stirred initial mixed solution to a second container, which is also provided with a spiral stirrer, and turning on the stirrer to stir the initial mixed solution again to ensure that the solution is more uniform, thereby forming a mixed solution;

[0010] Step 3) The mixed solution is pumped into a sizer through a metering pump, and the paper is colored through the sizer.

[0011] Furthermore, the stirring time in step 1 is 5-10 minutes.

[0012] Furthermore, the stirring time in step 2 is 2-3 minutes.

[0013] Furthermore, the dye is a bright yellow dye, frozen yellow or cauliflower yellow dye.

[0014] Furthermore, the paper is white card copy paper or high-strength corrugated paper.

[0015] Furthermore, the amount of the dye used is 5-8 kg per ton of paper.

[0016] Compared with the prior art, the advantages of the present invention are as follows: the sizing machine paper coloring process provided by the present invention ensures the uniformity of the dye solution through two stirring processes, thereby improving the uniformity of paper coloring; the dye dosage is accurately controlled, which reduces the waste of dye and reduces the production cost; the process is suitable for various types of paper and has wide applicability. DETAILED DESCRIPTION

[0017] The paper coloring process of a sizing machine of the present invention is further described in detail below in conjunction with the embodiments.

[0018] Example 1

[0019] When dyeing one ton of high-strength corrugated paper, first take 6 kg of light yellow dye, add it to container No. 1, and add 30 kg of clean water;

[0020] Turn on the spiral stirrer in container No. 1 and stir for 8 minutes to form an initial mixed solution;

[0021] The initial mixed solution was transferred to the second container, and the spiral stirrer in the second container was turned on and stirred for 2.5 minutes to form a uniform mixed solution;

[0022] The mixed solution is pumped into the sizing machine through a metering pump to color the high-strength corrugated paper.

[0023] Embodiment 2:

[0024] When dyeing one ton of white card copy paper, first take 5 kg of frozen yellow dye, add it to container No. 1, and add 25 kg of clean water;

[0025] Turn on the spiral stirrer in container No. 1 and stir for 5 minutes to form an initial mixed solution;

[0026] The initial mixed solution was transferred to the second container, and the spiral stirrer in the second container was turned on and stirred for 3 minutes to form a uniform mixed solution;

[0027] The mixed solution is pumped into the sizing machine through a metering pump to color the white card copy paper.

[0028] The present invention and its implementation methods are described above, and such description is not restrictive. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design structures and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A paper coloring process using a size press, characterized in that: The following steps are involved: Step 1) taking a dye by weight and adding it to a No. 1 container with a spiral stirrer, then adding 4-5 times the weight of clean water, turning on the spiral stirrer to stir until the dye is completely dissolved in the clean water to form an initial mixed solution; Step 2) transferring the stirred initial mixed solution to a second container, which is also provided with a spiral stirrer, and turning on the stirrer to stir the initial mixed solution again to ensure that the solution is more uniform, thereby forming a mixed solution; Step 3) The mixed solution is pumped into a sizer through a metering pump, and the paper is colored through the sizer.

2. A paper coloring process using a sizing press according to claim 1, characterized in that: The stirring time in step 1 is 5-10 minutes.

3. A paper coloring process using a sizing press according to claim 1, characterized in that: The stirring time in step 2 is 2-3 minutes.

4. A paper coloring process using a sizing press according to claim 1, characterized in that: The dye is a bright yellow dye, frozen yellow dye or cauliflower yellow dye.

5. A paper coloring process using a sizing press according to claim 1, characterized in that: The paper is white card copy paper or high-strength corrugated paper.

6. A paper coloring process using a size press according to claim 1, characterized in that: The amount of the dye used is 5-8 kg per ton of paper.