KR100686559B1 - Method of producing laminate by using cloth and paper and a tray produced by using the same laminate - Google Patents

Abstract

The present invention relates to a method of manufacturing a laminate using a cloth and paper, and a laminate tray of the new type according to the present invention. The present invention relates to a laminate tray which is coated with a water-soluble adhesive and pressed with a cloth and a squeeze roll to complete the drying process. Sheets and rolls can be manufactured, a high quality image of the packaging can be produced at a low cost, and the packaging effect can be increased to increase the working effect and reduce the defect rate.

Laminates, Wet Lamination, Laminates, Laminates with Cloth, Water Soluble Adhesives, Product Packaging

Description

Method for producing laminate by using cloth and paper and a tray produced by using the same laminate}

Figure 1a is a schematic diagram showing the lamination of the paper sheet using a water-soluble adhesive on the sheet-like cloth according to the laminate method of the present invention.

Figure 1b is a schematic diagram showing a laminate of a cloth using a water-soluble adhesive on a sheet of paper as another embodiment of the present invention.

FIG. 2A is a schematic diagram showing a laminate of a paper sheet on a cloth roll using a water soluble adhesive as an embodiment of another embodiment of the present invention.

FIG. 2B is a schematic diagram showing a lamination of a cloth sheet on a paper roll using a water soluble adhesive as an embodiment of another embodiment of the present invention.

FIG. 3 is a schematic view showing a paper roll laminated on a cloth roll with a water-soluble adhesive as an embodiment of another embodiment of the present invention.

4A is a schematic diagram of a conventionally known tray, and FIG. 4B is a schematic diagram when a tray is manufactured by cutting a laminate manufactured according to the present invention using a cloth roll and a paper roll.

Figure 5 is a schematic diagram showing a preferred process of the present invention to laminate using a cloth roll and a paper roll.

* Explanation of symbols for main parts of the drawings

1: cloth sheet 2: water soluble adhesive

3: paper sheet 10: cloth roll

30: paper roll

The present invention relates to a method of manufacturing a laminate using a cloth and paper, and a laminate tray of a novel form according to the present invention. More particularly, a method of manufacturing a laminate by laminating a paper including a cloth, cardboard, and corrugated material of polyester It relates to a laminate tray manufactured to maintain the tray form by using the laminate prepared in the same for product packaging.

The packaging material is used depending on the nature, use, shape and the like of the package contents. In this case, it is necessary to compound the optimal material to satisfy the functionality of the material.

The wet lamination is a method of mainly applying an aqueous solution and an emulsion to a material to bond a second material having air permeability, and then drying and laminating it. Paper and paper, film and paper, paper and aluminum foil, paper and cloth, mainly used for bonding the processed materials including paper. It is called wet lamination because the solvent, water, must be dried. In the meantime, many studies have been conducted on the production of lamination between films, paper and paper, nonwoven fabric and film using this wet lamination method. It wasn't. The reason is that it is not easy to control cloth having porosity and loosening property.

Representative of the first base material used in the wet lamination is soft aluminum foil, and the second material is cardboard such as imitation paper, fine paper, thin paper, and especially manila cardboard. In general, it is widely used for bonding paper and aluminum foil, it is possible to increase productivity and economy. It is mainly used for sealing of packaging materials, such as chewing gum, candy, butter, biscuits, ice sticks, shampoos, soaps, and labels.

Expensive products such as cosmetics, liquor, and health foods use polyester cloth to improve the quality of their products. Generally, a piece of cloth is placed on a high-weight cardboard, corrugated cardboard, or polypropylene tray and placed inside a box or gift box. However, when the packaging is made in the conventional manner, the packaging material is manually made, which increases the packaging cost and prevents mass production.

In order to overcome the above problems, the present inventors studied a method of manufacturing lamination of cloth and paper, and as a result, by applying a water-soluble adhesive to the paper, laminating it with a cloth and a pressing roll, and laminating and drying the paper, bubbles are formed on the adhesive surface. The present invention has been completed without such problems.

Accordingly, an object of the present invention is to provide a method of manufacturing a laminate of cloth and paper in order to consider the workability and the defective rate of the packaging material when packaging the tray using the cloth, and to reproduce the packaging to improve the quality of the product at a low cost.

In addition, the purpose is to produce a tray using a sheet or roll laminated with a cloth and paper and to apply to packaging such as health food, cosmetics, biochemical products, liquor.

The above object of the present invention was achieved by applying a water-soluble adhesive to paper, laminating by pressing with a cloth and a pressing roll, and undergoing a drying process.

The present invention relates to a method for producing a laminate using a common cloth and paper, such as polyester, and a new type of laminate tray according to the present invention. After applying an aqueous adhesive to paper, the cloth is pressed with a compression roll and then dried using a drying process. It provides a method for producing a laminate using a cloth and paper characterized in that.

In the present invention, the drying process is preferably performed for 2 to 6 hours at 20 ℃-35 ℃.

The present invention may be added after the drying step to store for 2 days at 23 ℃ -25 ℃ to dry the process.

In the present invention, the water-based adhesive may be selected from an adhesive group of a water-soluble type composed of starch, casein, CMC, and PVA, and an emulsion type adhesive group composed of polyvinyl acetate resin, EVA, and polyacrylic acid ester. Can be used.

In the present invention, the aqueous adhesive is preferably applied at about 1 to 20 g / m ² . When using an amount of the water-based adhesive less than the above range is not preferable because the adhesive strength is lowered, even when using an amount larger than the above range, the adhesion is no longer improved and the adhesive surface may be raised and dirty.

In the present invention, the cloth can be used in any form of sheet or roll.

The present invention also provides a laminate produced by a method of manufacturing a laminate using a cloth and paper, characterized in that after applying the water-based adhesive to the paper, the cloth is compressed with a pressing roll and then dried using an drying process.

In the present invention, the laminate can be used for product packaging or tray production.

The paper used in the present invention can be used as long as the paper having water resistance, and includes cardboard or corrugated cardboard. Preferred are SC Manila, Ivory, Golgi and the like.

Adjust the water-based adhesive to 1 ~ 20g / m ² on paper (Sheet, Roll) and apply it, and then press the cloth (Sheet, Roll) with a pressing roll, and then dry the adhesive using a drying process to laminate the sheet ( Make a sheet and a roll. Moisture of the adhesive is absorbed by the inner surface of the fabric, and the adhesion between the paper and the cloth is increased. The aqueous adhesive used includes water-soluble types such as starch, casein, CMC and PVA, and emulsion-type adhesives such as polyvinyl acetate resin, EVA and polyacrylic acid ester.

Apply water-based adhesive to sheet or roll paper (including cardboard and corrugated paper), and then press the sheet or roll cloth to compress the water-based adhesive. Or a roll is made and the bending phenomenon of a sheet and a roll changes with drying conditions. At this time, when the sheet is dried by high heat, new sheets and rolls of paper and paper are curled and curled at the edges of the paper.

The sheet or roll produced through this process can be used to make a paper tray with a feeling of cloth.

Traditionally, paper trays containing fabrics have been used for packaging requiring expensive images such as cosmetics, household goods gift sets, liquor, and health food gift sets. However, since the conventional tray is only a paper sheet or a plastic tray (PP tray) by applying an adhesive to the edge of the cloth, the tray form is not visible before the product is inserted, there was a problem of low workability and high defect rate. In addition, the packaging materials were made manually, requiring high packaging costs. However, when the tray is manufactured using the sheet or roll produced by the present invention, since the shape of the tray is maintained, workability is increased and a defect rate is lowered. In addition, packaging materials are automatically made, which reduces the cost of packaging materials and enables mass production.

Hereinafter, with reference to the drawings the specific configuration and operation of the present invention will be described in detail.

FIG. 1A is a schematic view showing the lamination of the paper sheet 3 with the water-soluble adhesive 2 on the sheet-like cloth 1 according to the laminating method of the present invention. Apply a water-soluble adhesive (2) to the sheet (3) paper, compress the cloth sheet (1) and dry it at 23 ° C for 2 hours, press it with a press, and store at 23 ° C-25 ° C for 2 days to add Drying produces a flat sheet.

FIG. 1B is a schematic diagram showing the lamination of the cloth sheet 1 with the water-soluble adhesive 2 on the sheet-like paper 3 as another embodiment of the present invention. Apply water-soluble adhesive (2) on the sheet (3) of paper, compress the sheet (1) and dry at 23 ° C for 2 hours, press with a press, and store at 23 ° C-25 ° C for 2 days Further drying produces a flat sheet.

FIG. 2A is a schematic diagram showing the lamination of the sheet 3 of paper on the cloth roll 10 with the water-soluble adhesive 2. Apply the water-soluble adhesive 2 to the sheet 3, apply a constant tension, compress the flat roll 10, and dry it at 25 ° C for 3 hours, press it with a press, and press at 23 ° C-25 ° C. After two days of storage, additional drying yields a flat sheet.

FIG. 2B is a schematic diagram showing the lamination of the cloth sheet 1 on the paper roll 30 using the water-soluble adhesive 2. Apply a water-soluble adhesive (2) to the paper roll (30) flattened under a constant tension, compress the cloth sheet (1), dry at 27 ° C for 3 hours, press with a press, and then press at 23 ° C-25 ° C. Storage for two days and then additional drying yields a flat roll.

FIG. 3 is a schematic view showing the lamination of the paper roll 30 on the cloth roll 10 using the water-soluble adhesive 2. Apply a water-soluble adhesive (2) to the paper roll (30) flattened by applying a constant tension, compress the cloth roll (10), dry at 30 ° C for 5 hours, and press it with a press to make a flat roll. .

The drying conditions and additional drying conditions used in FIGS. 1A to 3 play the most important role in solving the warpage problem of paper and the bubble generation problem after adhesion. The drying process is preferably performed for 2 to 6 hours at 20 ° C.-35 ° C. so as not to cause warpage of the paper and bubble generation after adhesion. At this time, the drying process of the aqueous adhesive takes a long time at 35 ° C. and 35 ° C. At higher temperatures, there is a disadvantage that the paper curls as the adhesive dries, and if the drying time is less than 2 hours, the adhesive is not completely dried and the adhesive remains undried. It is no longer necessary to invest in drying time and the investment in drying time therein is only a waste of time.

4A is a schematic diagram of a conventionally known tray, and FIG. 4B is a schematic diagram when a tray is manufactured by cutting a roll of cloth roll and a paper roll laminated according to the present invention. In the case of the existing tray, as shown in the schematic diagram, the tray does not show the shape, which makes it difficult to store the product. Difficulty means that the working efficiency decreases during the work and the completeness of the product decreases. However, manufacturing a tray using a new sheet has the advantage of lowering the cost of packaging materials and increasing work efficiency.

5 is a schematic diagram of a preferred manufacturing process of the present invention in which a cloth roll and a paper roll are laminated using a water-soluble adhesive. A water-soluble adhesive is applied as the paper rolls having a smooth surface and water resistance are released, and the cloth rolls are pressed to the paper to which the adhesive is applied as the cloth rolls are released. After pressing by pressing at 30 ℃ part of the solvent (water) mixed in the adhesive is removed by volatilization and dried using a bonding roller to make a roll laminated with paper and cloth.

The sheet manufactured by the above-described process and wound on a recovery roll may be shipped in a recovered roll form as needed. Applications include cosmetics, health foods, household chemicals, liquor packaging or traditional Chuseok, Chinese New Year gift set packaging, etc.

As described above, the method of manufacturing a laminate using the cloth and paper of the present invention and a new type of laminate tray according to the present invention are coated with a water-soluble adhesive and pressed with a cloth and a squeeze roll to be laminated, and dried to eliminate warpage and bubbles. It is a very useful invention in the packaging materials industry because it can produce perfect sheets and rolls, have a high quality image of packaging at a low cost, and has an excellent effect of increasing work efficiency and reducing defect rate when assembling a package.

Claims (5)

In the manufacturing method of the laminate using a cloth and paper, after adjusting the water-based adhesive to 1 ~ 20g / m ² applied to the paper having any water resistance selected from the group consisting of SC manila, ivory and corrugated, the fabric is crimped Pressurized with a roll and dried for 2-6 hours at 20 ℃ -35 ℃ and stored for 2 days at 23 ℃ -25 ℃ to further dry the production of packaging or tray production using a cloth and paper Way. delete delete delete delete

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