KR100926293B1 - Rayon korean paper board and the manufacture method - Google Patents

Abstract

The present invention relates to a method for producing high-quality drawn paperboard cardboard having a feeling of being capable of multicolor printing used for manufacturing high-quality printing paper, high-quality packaging boxes and paper machines, and a product thereof. More specifically, dry lamination method of laminating fiber with rayon fiber and lamination of high quality white paper made of natural paper with a feeling of natural paper and paper pulp made of natural pulp using a polymer polymer as an adhesive in a special lamination facility called an extruded laminator. The present invention relates to a method for manufacturing high-quality dog paper cardboard with the feeling of being able to make multicolor printing using one of the wet lamination methods of lamination using a lamination paste and a product thereof.

Rayon, Seal Paper, Whiteboard, Seal Paper, Cardboard

Description

Rayon Korean paper board and the manufacture method

The present invention relates to a high-quality dog paper paper cardboard and a manufacturing method thereof having a feeling of multi-color printing as possible, and more particularly, to a paper paper cardboard used in the manufacture of printing paper, packaging box and paper machine and a manufacturing method thereof.

Traditional Korean paper is made from main paper using mulberry pulp, and is an excellent paper that maintains its shape even after a long time due to its excellent strength and preservation. However, the raw material of mulberry pulp is an expensive raw material, and the manufacturing process of Hanji is complicated, and there is a limitation in mass production due to the manual intermittent production.

In addition, since it is manufactured through a certain size, it is not popular to produce a large paper product or a roll form product. In addition, due to the unique characteristics of Hanji, there was a lot of difficulty in making packaging boxes or manufacturing paper products with one piece of Hanji, and because of the high price of Hanji itself, it could not be used publicly.

In order to make up for the shortcomings of Hanji, the paper was produced by blending rayon fibers extracted from natural pulp with bleached chemical pulp, which has a rough texture similar to that of traditional Korean paper. It was thin and the use was limited.

In other words, conventional paper products made from paper of paper-like paper using paper mulberry pulp or rayon fibers have a low basis weight and a thin thickness, and thus are used for applications such as paper, paper, paper, fan paper, and low basis weight printing paper. Mainly used. A high-weight, high-density carton for manufacturing high-quality packaging boxes such as cigarette packs has never been developed.

In addition, Rayon fiber was exposed to the surface of the Rayon fiber in the case of conventionally used seal paper. As such, the rayon fiber exposed on the surface can be convex print or simple 1 ~ 2 degree offset printing.However, in advanced offset printing of 3 degree or more, the rayon fiber is peeled or peeled off during the printing process to contaminate the printing plate and the print quality is poor. It has been a disadvantage in that it has been difficult to use.

The problem to be solved by the present invention, by mixing the rayon fiber and bleaching chemical pulp produced in natural pulp, and preparing a sealant paper, using a bleaching chemical pulp to manufacture a white paper, then the sealant and the white paper laminated In addition to allowing the manufacture of Hanji cardboard, multi-color printing is possible, but it is possible to manufacture a paper cardboard with a sense of Hanji.

In addition, the present invention, while maintaining the beautiful texture and appearance of the existing Hanji to compensate for the shortcomings of the Hanji can be mass-produced through the production of roll-shaped products, can be used alone as an advanced packaging box, high-quality printing, It is to be able to manufacture the hanji that can be manufactured at a lower production cost than traditional hanji.

The present invention has the following means to solve the above problems.

According to the present invention, after mixing rayon fiber, PVA, and bleached chemical pulp, a first wetland is produced in a ring paper paper machine, and a second wetland is produced in a short paper paper machine using bleached chemical pulp as a main raw material. 2) a first process of manufacturing the wetland by layering the wetland; A second step of producing white cardboard in a long paper machine using bleached chemical pulp as a raw material; And a third step of manufacturing a sheet of paperboard by laminating by a dry lamination method of extruding a polymer polymer between the sheet of paper and a sheet of paperboard.

In another aspect, the present invention is prepared by mixing rayon fiber, PVA, bleaching chemical pulp in the first wetland in a ring paper paper machine, and producing a second wetland in a short paper paper machine using bleaching chemical pulp as a main raw material, A first process of manufacturing a seaweed by overlaying a second wetland; A second step of producing white cardboard in a long paper machine using bleached chemical pulp as a raw material; And a third step of manufacturing the paperboard by the wet lamination method of applying the adhesive to the backboard and attaching the paperwork thereon.

The present invention is capable of high-grade offset printing of more than 3 degrees while having the feeling of traditional Hanji, and is used alone to effect the manufacturing of a packaging box or paper.

In addition, the present invention can freely adjust the amount of rayon fibers to be mixed can easily change the feel of the hanji, by adjusting the basis weight of the white paper to be combined with the paper paper can produce a basis weight of 220 to 480g / ㎡ Therefore, it is possible to use for various purposes.

In addition, the present invention has a luxurious and rough texture similar to the traditional Korean paper, and can be produced in a continuous process different from the traditional Korean paper, so there is little restriction on the size of paper that can be produced, and it is also possible to select and manufacture in the form of sheets or rolls. It works.

Hereinafter, specific contents for the practice of the present invention will be described.

1 is a flowchart of a method for manufacturing a paperboard cardboard according to the present invention, and FIG. 2 is a structural diagram of a paperboard cardboard manufactured by the manufacturing method shown in FIG. 1.

The papermaking cardboard manufacturing method according to the present invention can be largely divided into three stages as shown in FIG.

Step 1: Manufacture of Hanji Paper

Step 2: manufacture white cardboard

Step 3: Manufacture of Coined Hanji and White Paper

[Step 1: Manufacture of Hanji Paper]

Rayon fibers, PVA (polyvinyl alcohol) or a binder (either or both), bleached chemical pulp are mixed and papermaking to prepare the seal.

In more detail, natural silk pulp silk yarn, that is, the rayon fiber is cut to a certain size, the rayon fiber is made into a certain shape and size by adding PVA or binder, and bleaching chemical pulp and After mixing, the paper is rolled in a single / circle net composite paper machine to produce a sheet of paper of 50 to 80 g / m 2 having a high grade and rough texture and a good printability.

It is preferable that 1-8 wt% of rayon fibers, 0.05-1 wt% of PVA (or binder), 91-98.5 wt% of bleached chemical pulp are prepared as described above.

When added to the single / ring network composite paper machine, after mixing the rayon fiber and bleaching chemical pulp prepared in a certain shape and size by the addition of PVA or a binder, the first wetland in a basis weight of 45 ~ 70g / ㎡ 20) and at the same time, the short paper machine uses a bleached chemical pulp as the main raw material to cut a thin second wetland 10 of 5 to 10 g / m 2, and has a basis weight of 50 to 80 g / m 2 by stacking the two. Korean paper is prepared in roll form.

When manufacturing the hanji in this manner, while maintaining the texture and pattern of the traditional hanji to prevent the phenomenon that the rayon fibers peeling / falling off during multicolor printing.

[Step 2: Manufacture of White Paper]

Bleached chemical pulp is used as a raw material, and a white paper 40 having a basis weight of 170 to 400 g / m 2 is produced in a roll form using a long paper machine.

The long paper paper machine is composed of three layers, by changing the raw material compounding ratio of each layer can be adjusted the physical and mechanical properties of the white paper. The white paper produced using such a long paper machine is low in density, high in strength, and excellent in box processing aptitude, thereby achieving excellent processability of the finished paperboard finished by the present invention.

[Step 3: Manufacture of Laminated Paper with White Paper]

Adhesive sheet 10 and 20 in the form of rolls prepared in steps 1 and 2 and the backboard 40 is bonded through an adhesive 30 to produce a high-quality seal paper with a sense of whether multi-color printing is possible. At this time, a dry lamination method or a wet lamination method is used for the adhesion method.

The adhesive 30 used in the dry lamination method is a polymer.

This lamination process is performed in a special facility called an extruded laminator, the seal paper 10 and 20 manufactured in step 1 are released in a special sandwich winder, and the backboard 40 manufactured in step 2 is unwinded. After unwinding, the polymer polymer is extruded between the two papers, and heat and pressure are applied to prepare a paper cardboard having a basis weight of 220 to 480 g / m 2.

Meanwhile, in the existing extrusion laminator, when two papers are laminated, deformation of paper, that is, curl occurs, which causes a large amount of loss in printing and processing processes.

In the present invention, in order to minimize the deformation of the paper to adjust the dry moisture during the production of the first step (10, 20), the second step of the white paper 40, the papermaking process as described above, Control produces paper without curls. In the extrusion laminator, the die temperature is adjusted to 300 to 350 ° C, and the tea die temperature to 220 to 340 ° C. In addition, the tension was applied to each paper to control the tension to 30 ~ 200kgf to minimize the deformation of the paper.

The polymer used as the adhesive 30 is adjusted to a thickness of 7 ~ 15㎛, and after adhering each paper with a polymer polymer is passed through the silicon roll and the cooling roll to finally complete the adhesion. Once the adhesive is completed, the cardboard is wound in roll form in the winding machine at the end of the extruded laminator.

The adhesive 30 used in the wet lamination method is a paper laminating adhesive 30 such as starch or polysol. The backboard 40 manufactured in the second step is slowly unwinded from the lower unwinder and moves while being in contact with the roll to which the adhesive 30 is applied so that the adhesive is applied to the surface of the backboard 40. Then, the artificial papers 10 and 20 manufactured in the first step are slowly released from the upper unwinder and are bonded to the backboard 40 to which the adhesive 30 is applied, and then the adhesive is made while passing through the press felt. The final glued cardboard is then rolled back.

The multi-color printing according to the present invention manufactured as described above, the paperboard with a sense of whether it is possible, can be supplied in the form of rolls or sheets according to consumer requirements. The paperboard finished in the dry or wet lamination method as described above is released from the slitter unwinder and is then sled to the width and amount desired by the consumer and then wound up in the slitter winder. Sheet-shaped products are released from dry machine or wet lamination by an off-machine cardboard unwinder and supplied in the specifications and quantities desired by the consumer.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims and their equivalents.

1 is a block diagram of a method for producing a cardboard carton according to the present invention.

Figure 2 is a structural diagram of a paperboard cardboard according to the present invention.

* Explanation of symbols in the main parts of drawings

10: second wetland

20: first wetland

30: adhesive

40: white paper

Claims (3)

After mixing rayon fiber, PVA, and bleached chemical pulp, a first wetland is produced in a ring paper paper machine, and a second wetland is produced in a short paper paper machine using bleached chemical pulp as a main raw material. A first step of manufacturing the paper by stacking it; A second step of producing white cardboard in a long paper machine using bleached chemical pulp as a raw material; A third step of producing a cardboard sheet by laminating by a dry lamination method of extruding a polymer polymer between the sheet and the white cardboard; A method for producing a paperboard cardboard capable of multi-color printing, characterized in that comprises a. After mixing rayon fiber, PVA, and bleached chemical pulp, a first wetland is produced in a ring paper paper machine, and a second wetland is produced in a short paper paper machine using bleached chemical pulp as a main raw material. A first step of manufacturing the paper by stacking it; A second step of producing white cardboard in a long paper machine using bleached chemical pulp as a raw material; A third step of manufacturing a sheet of paperboard by a wet lamination method by applying a conventional paper-bonding adhesive to the white paperboard and attaching the sheet of paper on it; A method for producing a paperboard cardboard capable of multi-color printing, characterized in that comprises a. Paperboard capable of multi-color printing produced by the manufacturing method of any one of claims 1 to 2.

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