KR100829106B1 - The base paper and method to product paper - Google Patents

Abstract

A white board and a method for producing the same are provided to improve the thermal insulating performance of the white board through physical and chemical properties of tin, by coating a tin oxide liquid on base paper for the white board. A base paper(P) for a white board is prepared by performing a paper material forming process and a first papermaking process. A tin oxide coating liquid is coated on a rear surface of the base paper through a first coating unit(200), and then dried through a first drying unit(210). A coating liquid is coated on a front surface of the base paper through a second coating unit(220), and then dried through a second drying unit(230). The coating liquid consists of calcium bicarbonate of 50-79%, clay of 10-39%, dispersing agent of 0.04-0.1%, and adhesive agent of 10-15%. The white board is formed by using the resultant base paper through a second papermaking process. Further, the tin oxide coating liquid is used by mixing 30 to 78 wt.% of ground calcium carbonate, 10 to 20 wt.% of clay, 1 to 49 wt.% of tin oxide, 0.04 to 0.1 wt.% of dispersant, 10 to 15 wt.% of adhesive with water.

Description

The method for manufacturing whiteboard coated with tin and the whiteboard {The base paper and method to product paper}

1 is a view schematically showing a manufacturing step of a conventional high-grade white paper,

Figure 2 is a view showing the entire backboard manufacturing apparatus of the present invention,

3 is a view showing a method of coating through a size press in the present invention,

Figure 4 is a view showing the appearance of a white cardboard produced by the manufacturing method of the present invention.

<Description of the symbols for the main parts of the drawings>

100-Coating Process 200-First Coating Department

210-First Drying Unit 220-Second Coating Unit

230-2nd drying unit 240-3rd coating unit

250-3rd Drying Department

The present invention relates to a manufacturing process for producing a white paper base paper that is widely used for packaging paper of the product and to a white paper, in particular, by coating tin oxide in the form of fine powder during the papermaking process and coating process according to the physical and chemical properties of tin The present invention relates to a method of manufacturing whiteboard coated with tin, which has improved heat retention, cold storage, and the freshness and antibacterial effect of the product, and to the whiteboard.

In general, a white paper is a paper used a lot of packaging for the packaging of goods.

By the way, in the conventional use of such a white paper, there has been no white paper manufacturing method or white paper for improving the antibacterial power by applying tin oxide to the coating process. Therefore, it is considered that the present invention is attempting such an attempt for the first time.

The present invention, which solves the above-mentioned problems, relates to a manufacturing process for producing a white paper base paper, which is widely used as a packaging paper for a product, and to the white paper, in particular, by coating tin oxide in the form of fine powder during papermaking and coating processes. According to the physical and chemical properties of tin, to provide a method of manufacturing a white cardboard coated with tin that improves the heat retention, cold insulation, and the freshness and antibacterial effect of the product and its white paper.

Accordingly, the present invention provides a manufacturing process for producing a functional high-quality cardboard paper, the first step: a composition process of pulverizing the pulp in water and a papermaking process of forming the thickness to form paper; Second step: coating (coating) the tin of the backboard paper supplied to the first coating unit by using a tin oxide coating solution, and drying the first drying unit; Step 3: Coating solution consisting of 50-79% of heavy calcium carbonate, 10-39% of clay, 0.04-0.1% of dispersant, and 10-15% of adhesive, in a weight ratio to the first coated and first dried paperboard A pre-color full coating through the second coating unit, and drying in the second drying unit; Fourth step: papermaking 2 process to finish the finished whiteboard base paper which is coating process and drying process into whiteboard paper; The present invention proceeds sequentially to provide a method of manufacturing a white cardboard coated with tin to produce a white paper having the functionality of heat retention, cold storage and antibacterial activity.

In addition, the present invention, in the backing paper, 30 to 78% by weight of heavy calcium carbonate, a fine mineral raw material of 8000-1500mesh on the back of the backboard, 10-20% clay (clay), 1-49% tin oxide, 0.04 dispersant It is intended to provide a white cardboard coated with tin coated using a tin oxide coating solution in a weight ratio of -0.1% and 10-15% of an adhesive.

Conventionally, as shown in FIG. 1, raw paper is largely produced in four processes, and is classified into a composition process 10, a papermaking process 20, a coating process 100, and a papermaking process 2. Produced.

In the present invention, the composition process 10, the first papermaking process 20, and the second papermaking process 40 are similar to those of the related art, but the coating process 100 includes the first and second coating parts 200 and 220 and the first process. It is divided into two drying parts (210, 230), characterized in that it comprises a third coating process, and because it has a great feature in that the tin oxide solution and tin oxide coating solution is used in the papermaking process and coating process It will be described in detail with the accompanying drawings.

The present invention is a manufacturing process for manufacturing a functional high-quality cardboard (P) as shown in Figures 2 to 4, the first step: the composition process of pulverizing the pulp in water and the papermaking to shape the thickness to form paper Go through 1 step. That is, the process for cutting the pulp supplied in the form of a roll and releasing it into water is a composition process. In addition, the papermaking process 1 is a process of making a form of paper, and refers to a process of forming a certain paper thickness and hardening it to form a paper. Therefore, the present invention is to go through this first step, the paperboard base paper is made and passed to the step of papermaking.

Next, the present invention is the second step: the coating (coating) by using a tin oxide coating solution on the back side (A) of the backing paper base (P) supplied to the first coating unit 200, the first drying unit 210 ) Through the drying process. In other words, when the manufactured white paper is produced as a product, it is necessary to trim rough surfaces and fill voids to facilitate printing. Therefore, the coating paper is subjected to this coating process. At this time, in the present invention, a tin oxide coating solution which is a special coating solution is used.

The tin oxide coating solution used in this second step is a heavy mineral carbonate, 8000-1500mesh, heavy calcium carbonate in weight ratio of 30-78%, clay (clay) 10-20%, tin oxide 1-49%, dispersant It is preferable to use it by slurrying it with water with the chemical agent of the weight ratio which stirred 0.04-0.1% and 10-15% of adhesive agents evenly.

The operation of this step is then described in detail. The tin oxide coating solution is coated (coated) using the tin oxide coating solution on the back surface A of the paper supplied to the first coating unit 200 after the above-described composition process and the first papermaking process, and dried in the first drying unit 210. Go through the process. That is, as shown in FIG. 2, the first coating process of coating the tin oxide coating solution on the back surface A of the base paper P which has undergone the first papermaking process is started. In addition, the tin oxide coating solution is a heavy calcium carbonate powder of 800-1,500 mesh of fine mineral raw material 30-78% by weight, tin oxide 1-49%, clay 10-20%, dispersant 0.04- The chemical | medical agent which stirred 0.1% and 10-15% of adhesives evenly.

Here, the very fine form of heavy calcium carbonate is the most inexpensive and white color material among the materials for coating, and thus has a whitening effect of paper. In addition, tin oxide, which is added together, makes it easy to maintain warmth, cold storage, and freshness of the product according to its physical and chemical properties, and improve antibacterial activity. Meanwhile, the dispersant is added to the tin oxide coating solution so that each component can be mixed better, and the adhesive serves to make the tin oxide coating solution adhere to the backing paper well and become a coating. The purpose is to ensure that the bonds are tightly adhered to.

Therefore, as described above, the base of the present invention is to be coated with a tin oxide coating solution through the first coating unit () and then coated to undergo a drying step. By the way, the tin oxide coating solution is directly put into the base paper (P) is not subjected to the step of coating, it is used in the state of slurrying in water. That is, the stirring ratio of the tin oxide coating solution and water is 30-70% tin oxide coating solution and 30-70% of water is added to the stirring and slurry. This slurryed material is used for the coating process.

That is, as shown in Figure 2, the coating process 100 is a tin oxide using a coating device that the coating proceeds by a common roll on the back surface (A) of the base paper (P) supplied from the first coating unit 200 The coating solution is coated, and the back side A of the base paper P coated with the tin oxide coating solution in the first coating unit 200 in the first drying unit 210 is dried. In this case, in the first drying unit 210, the base paper P coated with the tin oxide coating solution is dried using hot air, convection, and radiant heat, and is preferably dried at about 120 ° C. for about 7 seconds.

And the third step: 50-79% of heavy calcium carbonate, 10-39% of clay, 0.04-0.1% of dispersant, adhesive 10 The pre-color front (B) coating through the second coating unit 220 using a general coating solution consisting of -15%, and undergoes a process of drying in the second drying unit 230. The coating liquid used here may be the general coating liquid that has been used while producing white paper as it is. That is, this general coating liquid consists of heavy calcium carbonate, clay, a dispersing agent, and an adhesive agent. The heavy calcium carbonate will play a role in filling the pores generated on the surface of the paperboard while the effect of bleaching, the clay is well bonded, the dispersing agent will lead to the mixing of the input components. The adhesive allows the coating solution to adhere firmly to the surface of the backing paper stock.

And the present invention is the fourth step: the papermaking process 2 to finish the finished paperboard (P), which is the coating process and the drying process, to the backboard 100. Therefore, the backboard 100 with the functionality of the insulation, cold storage and antibacterial power according to the present invention is completed. In other words, this papermaking 2 process is a method that has been used in the conventional paper manufacturing process. This step, of course, is a process for glossing the surface of the base paper (P) so that it can be transformed into a base paper that can be printed more easily in the step of post-processing printing or cutting.

On the other hand, the present invention, in the above-described manufacturing method, between the first step and the second step, tin oxide and water consisting of tin oxide 16-23%, starch oxide 75-80%, PVA 1-5% by weight ratio After mixing at a ratio of 5-10% by weight and 90-95% by weight, respectively, the step of applying it by flowing between the paperboard base paper P passing through the size press 50 may be added. That is, as shown in FIG. 3, when the size press formed of two rolls passes through the tin oxide, that is, the tin oxide liquid, that is, tin oxide mixed with an appropriate amount of tin oxide, starch oxide, and PVA is flowed between the rollers. At this time, the mixed solution consisting of the tin oxide, starch oxide and PVA is referred to as tin oxide solution in the present invention. In addition, in the present invention, when the tin oxide solution is flowed between the size presses, the mixture is infiltrated in the state of a mixture with water, the mixing ratio of which is 90-95% by weight of water and 5-10% of tin oxide solution.

Let's take a look at the physical properties of the components of this tin oxide solution. In the case of tin oxide, tin oxide is added to improve the antibacterial activity, and starch oxide is added to be used as a natural adhesive. In other words, the starch oxide is a starch-like material, which is injected between two rotating rolls so that the tin oxide can be adhered to the base paper well. to be. Therefore, it is made between the first step of papermaking and the first step of coating. More precisely, this step, which will in fact be included in the papermaking process, is to first achieve the effect of some coating on the back side of the backing paper prior to coating. As a result, the coating process can be performed more effectively in a timely process that enables the coating step to be performed more effectively, but the quality excellence of smoothing the surface is inferior to the effect of coating.

Furthermore, in the present invention, the third step and the fourth step, the third coating unit 240 and the third drying unit 250 is added to coat the front surface (B) of the white paper is preferably dried. . That is, the coating step of the paper manufacturing process is generally performed in two steps, but the backboard of the present invention is subjected to the third coating step in order to make use of its functional characteristics and to ensure its quality excellence. At this time, the steps of the third coating and the drying are similar to those of the coating method described above.

However, the coating solution requires some distinction. That is, the third coating and drying are coated using a coating solution consisting of 50-79% of heavy calcium carbonate, 10-39% of clay, 0.04-0.1% of dispersant, and 10-15% of adhesive, as described above. Drying may be adopted. Of course, heavy calcium carbonate, a fine mineral raw material of 8000-1500mesh, contains 30-78% by weight, 10-20% of clay (clay), 1-49% of tin oxide, 0.04-0.1% of dispersant, and 10-15% of adhesive. It is also possible to use an antistatic coating and drying process using a uniformly stirred weight ratio of tin oxide coating solution. That is, the coating liquid using the general coating liquid or using the tin oxide coating liquid characteristic of the present invention may be used.

On the other hand, the present invention, as shown in Figure 4, in the backboard paper, a heavy mineral carbonate calcium carbonate of 8000-1500mesh on the back side (A) of the backboard 30 to 78% by weight, clay (clay) 10-20%, The base material coated with the tin oxide coating liquid of the weight ratio which stirred 1-49% of tin oxide, 0.04-0.1% of a dispersing agent, and 10-15% of adhesives is also a target of the claim. That is, the white board in the state which coated the back surface of the backboard paper using the characteristic tin oxide coating liquid of the present invention mentioned above is also a target of the claim.

Furthermore, the present invention is also subject to the claims of a pack of cigarette paper, which is coated with the very tin manufactured by all the above-described methods for manufacturing the cardboard.

As described above, the present invention, when used by coating a tin for a cardboard box for general paper packaging to increase the heat and cold effect of the paper box, and increase the antimicrobial, using this white paper, food packaging or agricultural product box, etc. Has the effect of improving its freshness.

Claims (7)

In the manufacturing process for producing a functional high-quality cardboard base paper, A first step: a process of forming and pulverizing the pulp in water, and a papermaking first step of forming a thickness to form paper; Second step: coating (coating) by using a tin oxide coating solution on the back side (A) of the backing paper base (P) supplied to the first coating unit 200, and dried through the first drying unit 210 Process; Step 3: 50-79% of heavy calcium carbonate, 10-39% of clay, 0.04-0.1% of dispersant, and 10-15% of adhesive, in a weight ratio to the first coated and first dried paperboard (P) Coating the entire pre-color (B) through the second coating unit 220 using the coating solution formed therein, and drying the second coating unit 230 in the second drying unit 230; Fourth step: papermaking step 2 to finish the finished white paper base paper (P), which is a coating process and a drying process, to the white paper (100); A method of manufacturing a backboard coated with tin, characterized in that to produce a backboard 100 having the functionality of thermal insulation, cold storage and antibacterial activity sequentially. The method of claim 1, Between the first step and the second step, Sized tin oxide (16-23%), starch oxide (75-80%), PVA (1-5%), and tin oxide (5-10%) and water (90-95%), respectively. The method of manufacturing a white cardboard coated with tin, characterized in that it further comprises the step of applying by pouring between the white paper (P) passing through. The method of claim 1, Tin oxide coating solution used in the second step, Heavy calcium carbonate, a fine mineral raw material of 8000-1500mesh, is stirred by weight ratio 30-78%, clay 10-20%, tin oxide 1-49%, dispersant 0.04-0.1%, and adhesive 10-15% A tin-coated white paper manufacturing method, characterized in that it is used as a slurry in water by weight ratio chemicals. The method of claim 1, Between the third step and the fourth step, The method of manufacturing a white cardboard coated with tin, characterized in that the coating to the front (B) of the white cardboard is added to the third coating unit 240 and the third drying unit 250 and dried. The method of claim 4, wherein The third coating and drying, Coating and drying using a coating solution consisting of 50-79% heavy calcium carbonate, 10-39% clay, 0.04-0.1% dispersant, and 10-15% adhesive Heavy calcium carbonate, a fine mineral raw material of 8000-1500mesh, is stirred by weight ratio 30-78%, clay 10-20%, tin oxide 1-49%, dispersant 0.04-0.1%, and adhesive 10-15% A tin-coated white paper manufacturing method, characterized in that the coating and drying using a tin oxide coating solution in a weight ratio. In the paperboard base paper, Heavy calcium carbonate, a fine mineral raw material of 8000-1500mesh, is 30-78% by weight, 10-20% clay (clay), 1-20% tin oxide, 0.04-0.1% dispersant, adhesive agent A white cardboard coated with tin, characterized in that the coating is carried out using a tin oxide coating solution in a weight ratio of 10-15%. The backboard coated with tin, characterized in that it is produced by any one of the manufacturing method of claim 1 to claim 5.

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