KR19980025555A - Paper products using traditional Korean paper and its manufacturing method - Google Patents

Abstract

The present invention is a Hanji layer obtained by long-term paper pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two natural pulp; And a sun-drying layer obtained by applying natural pulp to annular paper and having one side thereof laminated on one side of the Hanji layer, and an adhesive layer formed on one side thereof not laminated on the paper pulp layer. It provides a paper product of 200g / ㎡, and a paper product, characterized in that the polyolefin-based resin sheet layer is laminated between the hanji layer and the sunji layer, if necessary, and a method for producing them.

Paper products according to the present invention have excellent texture, beautiful appearance, durability, etc., and can be widely used in interior areas such as floor coverings and wallpaper because they have the characteristics of convenience of construction work due to dry adhesion of adhesive and lamination of synthetic resin sheets. have.

Description

Paper products using traditional Korean paper and its manufacturing method

FIELD OF THE INVENTION

The present invention relates to a paper product using a paper made from doc pulp and a method for producing the same, more specifically, double honcho paper consisting of Hanji and Yangji, and laminated papers laminated with a synthetic resin sheet on the double paper of Hanji and Yangji, And a paper product in which an adhesive layer is formed on these double blend papers or laminated papers, and a manufacturing method thereof.

Prior art in the technical field to which the invention belongs

Korea's traditional Korean paper is made from perennial vegetation, Dak tree, which has long been the mainstream of paper products in our lives, but since its high productivity, Yangji has been limited to its application in western paper or window paper, despite its excellent performance. there was.

On the other hand, currently widely used wallpaper includes paper wallpaper, polyester spanbond foam wallpaper (Patent Publication No. 94-024169), foam wallpaper such as PVC (Patent Publication No. 90-001492) and the like. Existing paper wallpaper is not luxurious, while wallpaper using synthetic resin causes pollution when waste paper is generated, and when fire occurs, it causes a large fire due to the emission of toxic gas and high flame.

On the other hand, jangpan paper is mainly used for oil treatment on both sides and PVC sheet products. PVC sheet products have the advantages of softness of the floor, variety of colors and patterns, and simplicity of construction, but the texture felt by the human body is inferior to paper. In addition, the traditional paperboard oil-treated on the sun gives a soft feel and texture, but the softness and durability of the floor is bad.

Accordingly, an object of the present invention is to provide a new wallpaper or a sheet of paper, and a method for producing the same, which has excellent tensile strength, air permeability, and texture but does not have the problems of conventional synthetic wallpaper.

1 is a process chart showing an example of a papermaking method according to the present invention.

Figure 2 is a process of applying dry lamination and pressure-sensitive adhesive after papermaking according to the method of the present invention.

3 (A) to 3 (C) show the constituent layers of various paper products manufactured in the present invention.

Description of the main parts of the drawings

1, 7: Confession tank 2: Adjustment tank

3: Jangmanjijigi 4: 4: Mangwanjijigi Bad

5: ring paper machine cylinder 6: drying roll

7, 8, 9: Rewinder 10, 11: Coating Machine

12 heating roll 13: far infrared heat treatment machine

In order to achieve the above object, in order to give a beautiful texture and firmness by using the characteristics of the traditional Korean paper, the surface of Hanji, and the inside of the arrangement is arranged in order to make the texture of the mulberry fiber In order to make paper and provide convenience when applying, the modified starch is coated on a sunny place and dried to provide a wallpaper or a sheet of cardboard improved to be applied only when water is applied, and a method of manufacturing the same.

That is, the present invention

(1) supplying a pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two kinds of natural pulp to a long paper machine;

(2) supplying natural pulp consisting of 0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp to a ring machine;

(3) laminating the paper made in the long paper machine of step (1) and the paper made in the ring paper machine of step (2); And

(4) applying a pressure-sensitive adhesive on the non-synthetic surface of the natural pulp paper of the double paper obtained in the step (3)

It characterized in that it provides a process for producing a base paper excellent in air permeability and tensile strength in the machine direction and the machine reverse direction.

Another aspect of the invention also

A pulping pulp paper layer obtained by foraging a pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two kinds of natural pulp; And

An adhesive obtained on one surface of which is laminated on one side of the pulped pulp paper, and one surface of which is laminated on one side of the pulped pulp paper layer, obtained from natural pulp consisting of 0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp. It provides a double paper comprising a layer of natural pulp paper layer formed.

Another aspect of the invention

A pulping pulp paper layer obtained by foraging a pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two kinds of natural pulp;

An adhesive obtained on one surface of which is laminated on one side of the pulped pulp paper, and one surface of which is laminated on one side of the pulped pulp paper layer, obtained from natural pulp consisting of 0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp. A layer of natural pulp paper layer formed; And

It provides a double paper consisting of a synthetic resin layer interposed between the paper pulp paper and the natural pulp paper layer or between the natural pulp layer and the pressure-sensitive adhesive layer.

Other objects, features and applications of the present invention will become apparent to those skilled in the art by the following detailed description.

Hereinafter, the present invention will be described in more detail.

According to the present invention, a paper product made by laminating a paper pulp made from Doc pulp alone or a mixture with natural pulp and a paper pulp made from natural pulp is a wallpaper, and a synthetic resin such as PVC between the paper and pulp paper. Paper products with intervening sheets are usefully used as sheet paper.

The double wallpaper of the present invention made of Hanji and Yangji is excellent in durability and environmentally friendly, can exhibit the performance of the wallpaper excellent in the humidity control of the room by the moisture content and release performance of the pulps and the excellent porosity of the paper itself.

Paper product consisting of three layers of Hanji layer-synthetic resin sheet layer-yangji layer that can be used as a sheet of paper according to the present invention has the advantage of easy construction while having the texture and antique taste of traditional Hanji.

However, the paper products provided according to the present invention are not limited to their use in wallpaper or interior decoration, or in cardboard or floor decoration, and can also be used in the manufacture of paperwork.

In the present invention, a sheet of paper was prepared using a long paper machine, and a sheet of paper was prepared using a ring machine to improve the tensile strength in the machine direction and the machine direction. In addition, it is difficult to form pores when only short fiber type natural pulp (eg kraft pulp) is used for long and long mesh paper, and tensile strength is increased when long fiber type natural pulp (eg manila pulp) is used. Since it can be shaped, it is preferable to mix the natural pulp in the form of long fibers and short fibers preferably to achieve an increase in tensile strength and the formation of appropriate pores.

When explaining the present invention in more detail, in order to produce a base paper having a texture, air permeability, tensile strength of Hanji, unlike the conventional manufacturing method, the long-term paper machine Docpul alone pulps and long fiber type natural pulp (eg , Mixed pulp of manila pulp, and the ratio of 0-100% / 100-0 parts by weight of natural pulp in the form of long fiber (e.g. manila pulp) / natural pulp in the form of short fiber (e.g. kraft pulp) By blending with paper, a double layer of raw paper was made. In general, when the content of short fibers increases, the strength of the base paper is slightly increased. However, it is difficult to control the desired physical properties due to deterioration of the bonding, density, and porosity, so that short fiber pulp and long fiber pulp are used to improve the permeability and strength of the base paper. The ratio of was used and the tensile strength was increased by producing double paper without paper with long and thin paper.

As a specific process for producing raw paper, 100-20 parts by weight of docpulps and 0-80 parts by weight of mixed pulp of manila pulp were beaten in a beating tank, and then, 5-100 g / m 2 of Hanji layer was prepared alone for the long paper machine. In the papermaking paper machine, natural pulp is mixed in an appropriate weight part (0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp), and then beating in a high altitude tank. To prepare a paper through a dehydration process and a dryer to make a duplex paper in the total basis weight of 10-200g / ㎡.

In order to make it convenient to use as a wallpaper on the base paper prepared above, starch or the like can be formed on the surface of the construction surface, that is, the paper pulp layer (or Hanji layer) that is not laminated with the adhesive strength having a very high adhesive strength. (Table 1). By doing so, there is an advantage that the construction can be simply performed after spraying water on the pressure-sensitive adhesive layer of the paper product according to the present invention without applying the pressure-sensitive adhesive to the wall or wallpaper separately during construction.

Alternatively, a synthetic resin layer may be laminated between the Doc pulp layer and the sun layer or between the unbonded surface of the sun layer and the adhesive layer in order to impart proper characteristics for use as a sheet paper on a double paper product having the above structure. 3 (B) or 3 (C). Lamination of the synthetic resin layer can be performed by an infrared heating and a heat treatment method using a heating roll. Since adhesion may occur on the surface of the heating roll, it is advantageous to use a Teflon coating or a release release agent. The heating temperature is maintained at 110-250 ℃ considering the melting point of the synthetic resin and the water vaporization of water-soluble starch.

The above manufacturing process is shown in FIG. 1 and FIG.

In the present invention, the papermaking process is shown in FIG. 1, but in the high algae (1), after adding Doc pulp or manila pulp and sufficiently beating and adjusting the concentration with water in the degree of adjustment (2), the titration is carried out through a long paper machine (3). Paper the basis weight. In addition, by adjusting the concentration in the altitude tank (7) and papermaking through the ring paper machine cylinder (5), the paper is laminated in the long paper machine (3) and then passed through the drying roll (6) through dehydration to meet the end purpose A basis weight duplex was prepared.

The post-treatment process (Fig. 2) of the double paper prepared above is supplied to the rewinder (8), the starch solution is applied in the coating machine (10), and then the heating roll (12) and heat treatment unit (13) After evaporating the aqueous solution, the product was wound around a winding to make a product coated with an adhesive. Modified starch may be used as the pressure-sensitive adhesive, it is applied to the surface that is in contact with the wall or the bottom during the construction, that is, the surface not laminated on the Hanji layer or synthetic resin sheet layer in the sunny layer. By forming an adhesive layer on the construction surface of paper products, this surface can be easily sprayed by applying water to this surface during construction.

In addition, the lamination of the synthetic resin sheet layer is carried on the rewinder (7) and the paper sheet obtained from the long-term paper machine, the polyolefin-based synthetic resin sheet is supplied to the rewinder (8) to pass through the heat treatment unit (13) heated above the melting temperature of the synthetic resin Laminate by heat fusion. The rewinder 9 is coated with a sheet of paper obtained from a ring paper machine, and the coating machine 11 is coated with a starch solution modified with acrylic acid. Then, the three layers are heated above the melting temperature of the synthetic resin to evaporate heat fusion and moisture, and then the synthetic resin inside. The sheeted product can be manufactured. In addition, the acrylic acid-based adhesive may be put into the coating machine 10 to improve the adhesion of the synthetic resin sheet. Moreover, it is also possible to change the kind of base paper provided to the rewinder 7 and 9.

As a synthetic resin sheet used for this invention, the sheet of polyolefin resin, such as polyethylene, a polypropylene, fibrous, a polyurethane sheet, can be illustrated.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

Example 1

After adding 100% of doc pulp to a beating tank in jangmancho paper machine, fully beating paper, and papering it at 18g / m2 of basic weight, and putting 100% of kraft pulp, which is a natural pulp, into beating tank. The pulp phases drawn out through the cylinders were bonded to the papermaking paper in Jangmangi papermaking machine, followed by dehydration and drying process to make double gland paper with a total basis weight of 50g / ㎡, and the adhesive was applied through the process of FIG. It was. The pressure-sensitive adhesive coated product obtained above was coated with water, and without any starch treatment, the glue was put on a copy paper, and the adhesive strength was measured. The results are shown in Table 1 below. On the other hand, in the case of glued base paper, it was difficult to indicate the adhesive strength numerically due to rupture of the base paper.

Example 2

After adding 70% of doc pulp and 30% of manila pulp to the persimmon tank, be sure to confuse them, and then make paper with 20 g / m2 of basic weight.In the paper machine, put 100% of natural pulp kraft pulp into the calcination tank. Thereafter, the pulp phases drawn out through the cylinder of the paper machine were bonded to the paper machined in the paper machine, and the double paper of 80 g / m2 was produced by dehydration and drying to evaluate the physical properties. The results are shown in Table 1. .

Example 3

In Example 1, 20g / m 2 was prepared in a long paper machine, and then laminated in a ring machine, and then manufactured in the same manner except that the total basis weight of paper was 70g / m 2, and the physical properties thereof were evaluated. Indicated.

Example 4

In Example 1, 20g / m 2 was prepared in a long paper machine and then laminated in a ring machine, and then the same properties were prepared except that the total basis weight of paper was 100 g / m 2, and the physical properties thereof were evaluated. Table 1 Appeared on.

Example 5

In Example 1, 20 g / m 2 was manufactured in a long paper machine, and then the paper was evaluated in the same manner except that the total basis weight of the paper after laminating in a ring machine was 150 g / m 2, and the results are shown in Table 1. It was.

Example 6

Except for using 80% kraft pulp and 20% manila pulp in a ring paper machine in Example 1 was prepared in the same manner to evaluate the physical properties, the results are shown in Table 1.

Example 7

In Example 1, except that 100% manila pulp was used as the long-term paper machine, the same procedure was followed to evaluate physical properties, and the results are shown in Table 1.

Example 8

In Example 1, 10g / m 2 was prepared in a long paper machine and then laminated in a ring machine, and then the same properties were prepared except that the total basis weight of the paper was 100g / m 2, and the results were evaluated in Table 1. Indicated.

Example 9

Add 70% of doc pulp and 30% of manila pulp to the persimmon algae in a persimmon paper machine, and after it is fully beaten, make paper at 20 g / m2. After sufficient beating, the pulp phase which escaped through the cylinder of the papermaking machine was bonded to the papermaking machine from the papermaking machine, and the double paper with a basis weight of 70g / m2 was produced through dehydration and drying process to evaluate the physical properties. 1 is shown.

Example 10

Put 30% of doc pulp and 70% manila pulp in a beating tank in a persimmon paper machine, and fully confuse it, and then paper it at a basis weight of 20 g / m2. After the pulverization in the tank is sufficient, the pulp phase, which has escaped through the cylinder of the papermaking machine, is bonded to the papermaking machine in the papermaking machine, and the double paper having a basis weight of 70g / m2 is produced through dehydration and drying process to evaluate the physical properties. Is shown in Table 1.

Example 11

Put 20% of doc pulp and 80% manila pulp in a persimmon tank and put it in 20g / m² after fully beating.In the paper mill, 50% of natural pulp, kraft pulp and 50% manila manpulp, After sufficient beating, the pulp phase which escaped through the cylinder of the papermaking machine was bonded to the papermaking machine from the papermaking machine, and the double paper with a basis weight of 70g / m2 was produced through dehydration and drying process to evaluate the physical properties. 1 is shown.

Example 12

After adding 20% of doc pulp and 80% manila pulp to the persimmon tank, the paper is fed with 20g / m2 of basis weight. The pulp phase drawn out through the cylinder of was bonded to the papermaking machine in the long-term paper machine to prepare a double paper of a basis weight of 70g / ㎡ through the dehydration and drying process to evaluate the physical properties, the results are shown in Table 1.

Example 13

Using Hanji paper manufactured by Jangman papermaking machine manufactured in Example 1, sunji paper made by ring papermaking machine and PVC sheet (thickness 1.5mm), at a temperature of 250 ° C using an apparatus having the configuration as shown in FIG. After heat-treatment, the sheet was made, and the adhesion between the paper and the fibrous sheet was measured. The result was more than 550 g / 15 mm.

Example 14

Bonding strength was 545 g / 15 mm or more as a result of measuring the adhesive force by laminating a polypropylene sheet (thickness 1 mm) on a nonwoven surface of the double-layered paper of Example 2 prepared by heat treatment at a temperature of 230 ° C.

Example 15

The same process as in Example 13, except that the sheet was made as in Example 4 as the paper and the paper, using a PVC foam sheet (thickness 2.5 mm) between the paper and the paper sheet, using an adhesive, a heating roll and a far infrared ray treatment machine (temperature A longboard was produced by laminating by heat treatment using 230 占 폚). It was 450 g / 15 mm or more when the adhesive force of the Hanji layer of this sheet of cardboard with the PVC sheet was measured.

Example 16

As a result of measuring the adhesive force between the paper layer and the polyethylene sheet by making a polyethylene sheet (thickness: 0.9 mm) thermally laminated at a temperature of 230 ° C. on a non-laminated surface of the double-layered double-layered layer prepared in Example 12, 532 g / 15 It was mm or more.

Example 17

479g / as a result of making the sheet paper by heat-laminating a polyurethane sheet (thickness 2mm) at the temperature of 250 degreeC on the unblended surface of the duplex paper of the double-layered paper manufactured in Example 6, and measuring the adhesive force of the paper layer and a polyethylene sheet It was 15 mm or more.

Example 18

15g / m2 of basis weight, made of 100% docpulps, and only 15g / m2 of PVC sheet (1.5mm thick), and 45g / m2 of basis weight of paper used as commercial paperboard Three prepared by heat treatment at a temperature of 250 ℃ using the apparatus of FIG.

Example 19

Double paper, fibrous sheet (thickness 1.5mm) prepared in Example 1, and 45 g / m 2 basis weight, which are commonly used for commercially sold sheets of paper, were manufactured by circular paper machine using 100% graft pulp. Was heat-treated at a temperature of 250 ° C. to make triple sheets of cardboard.

Experimental Example 1

The physical properties of the paper products produced in Examples 1 to 19 were evaluated as follows, and the results are shown in Table 1.

Test Methods

1) Tensile strength was tested according to KS M 7014.

2) The fusion strength of synthetic resin sheet and paper was 15mm in width and 20cm in length.

3) The adhesive strength of modified starch and paper was measured by making a 15 mm wide and 20 cm long paper specimen with water and applying water on the copying paper. It measured at / 15 mm.

4) Moisture absorption ability, put 100 cc of water in a sealed acrylic plate (30 × 30 × 30 cm) barrel kept the temperature constant at 25 ℃ and put the test paper product (100 × 300 cm) and the relative humidity It evaluated by measuring. As a result, although not shown in Table 1, it was measured that the relative humidity remained almost constant at 60% for one week.

TABLE 1

Note) * Rupture: When adhesive is applied, it is a phenomenon that the paper is torn due to the strong adhesive strength of the adhesive part, which means that the adhesive strength is strong.

The paper product produced by the method of the present invention has a shape in which the pulp of the double papers made from the long mesh and the circular mesh paper machine cross-laminated each other, so that the tensile properties and the air permeability are higher than those produced only by the long mesh or the circular mesh paper with the same basis weight. It has excellent physical properties, and has a unique texture, beautiful appearance, durability, etc. compared to ordinary wallpaper and sheetboard, and it has the characteristics of convenience of construction work by dry adhesion of adhesive and lamination of synthetic resin sheet. It can be widely used in the field of interior.

Claims (8)

(1) supplying a pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two kinds of natural pulp to a long paper machine; (2) feeding a natural pulp consisting of 0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp to a ring paper machine; (3) laminating the paper made in the long paper machine of step (1) and the paper made in the ring paper machine of step (2); And (4) applying a pressure-sensitive adhesive on the non-synthetic surface of the natural pulp paper of the double paper obtained in the step (3) Method of manufacturing a paper product comprising a. The polyolefin-based resin sheet according to claim 1, wherein in step (3), a polyolefin-based resin sheet is placed between the respective paper layers prepared in steps (1) and (2) or on the unblended surface of the natural pulp paper layer prepared in (2). A method for producing a paper product comprising three layers by laminating and laminating. A doc pulp layer obtained by foraging a pulp mixture consisting of 100-20 parts by weight of Docpul and 0-80 parts by weight of one or two kinds of natural pulp; And A natural pulp comprising 0-100 parts by weight of manila pulp and 100-0 parts by weight of kraft pulp, which is one side of which is laminated on one side of the Doc pulp layer, and one side that is not laminated on the Doc pulp layer. A double sheet of paper comprising an adhesive layer on which an adhesive layer is formed, wherein the total basis weight is 10 to 200 g / m 2. The method of claim 3, wherein The paper product is a paper product, characterized in that the polyolefin-based resin sheet layer is laminated between the hanji layer and the sunji layer, or one surface of the sunji layer. The method of claim 4, wherein The polyolefin resin sheet layer is a paper product, characterized in that the polyethylene, polypropylene, PVC, or polyurethane sheet layer. The method of claim 4, wherein Paper product, characterized in that the pressure-sensitive adhesive layer is formed by coating with acrylic acid modified starch The paper product according to claim 3, which is used as a wallpaper or a decorative material. The paper product according to claim 4, which is used as a sheet of cardboard or a flooring material.