KR20140011596A - Manufacturing method of olefin decoration sheet using chaff and the sheet thereby - Google Patents

Abstract

The present invention relates to a method for manufacturing an olefin surface decoration sheet using chaff and a sheet manufactured thereby. The sheet of the present invention includes chaff olefin sheet (1) containing chaff, a primer coating layer (2), a transparent olefin sheet (3), a print layer (4), and a hard coating layer (5).

Description

Manufacturing method of olefin surface decorative sheet using chaff and sheet thereof {MANUFACTURING METHOD OF OLEFIN DECORATION SHEET USING CHAFF AND THE SHEET THEREBY}

The present invention relates to a method for producing an olefin surface decorative sheet using chaff and a sheet thereby.

[Document 1] Patent Registration No. 10-1062012

[Patent Document 2] Patent Registration No. 10-0818696

The present invention relates to a method for manufacturing a sheet for surface decoration using chaff, the existing product using the CPP has limitations (such as the bursting of the sheet during the secondary processing and excessive generation of processing loss) to be invented to improve this

The present invention has the object of the present invention to provide a sheet that can reduce the production cost by using chaff, which is an environmentally friendly material, and can greatly reduce the generation of dioxin or harmful gas generated from the sheet manufactured using the existing PVC.

In addition, an object of the present invention is to produce a sheet capable of solving the bursting of the sheet during the secondary molding process.

The main constitution of the present invention for achieving the above object is a chaff olefin sheet (1) containing chaff, a primer treatment layer (2) formed on the bottom of the chaff olefin sheet (1), and the chaff olefin sheet (1) A transparent olefin sheet 3 adhered to an upper portion, the transparent olefin sheet 3, a printed layer 4 formed on a bottom surface, and a hard coating layer 5 formed on an upper surface of the transparent olefin sheet 3. The hard coat layer 5 is characterized in that it further comprises a patterned layer (6), and the adhesive layer (10) is further formed on the bottom of the primer treatment layer (2), the release paper 11 Characterized in that the configuration attached.

The manufacturing method according to the invention is characterized in that, including chaff 30-60 parts by weight, talc 30-60 parts by weight, PP 100 parts by weight, PE 25-75 parts by weight, lubricant 2-5 parts by weight, dispersant 2-5 parts by weight Chaff raw material blending process;

Pelletizing the raw material through the blended raw material through a dough, extrusion and cutting process; Sheet production process in which the pelletized raw material is extruded, casted, rolled up, and aged to 50-60 degrees Celsius to form chaff olefin sheet (1); A transparent olefin sheet printing step of printing on the prepared transparent olefin sheet 3, wherein the ratio of ink and curing agent is mixed at a ratio of 100 parts by weight: 3-5 parts by weight to print on the surface of the transparent olefin sheet 3; Process of aging the printed transparent olefin sheet (3) for 2-3 days at a temperature of 50-60 degrees Celsius:

Laminating the prepared chaff olefin sheet (1) and the matured transparent olefin sheet (3) at a temperature of 20-60 degrees Celsius; Aging the laminated sheet at a temperature of 45-55 degrees Celsius; Subjecting the aged laminated sheet to a temperature condition of 80-95 degrees Celsius; The primer-treated laminated sheet is subjected to a surface treatment with a curing agent to form a hard coating layer (5) to prevent surface scratches, and further comprising, after the surface treatment process It characterized in that it further comprises a step of embossing.

According to the present invention, it is possible to reduce the manufacturing cost, and has the advantage that the dioxin or harmful gas generated by using the existing PVC using the environmentally friendly ash by using rice by-products close to the human body can be opened significantly.

In addition, the bursting of the sheet during the secondary molding process has an advantage that can be solved. The sheet according to the present invention is an exterior material in furniture, OA office equipment, exterior material in kitchen furniture, built-in door, molding and membrane door for building materials, It can be used for eco-friendly building material surface finishes such as interior (DIY film) sheets, break room partitions, and interior finishes such as hospitals and libraries.

In addition, the present invention has a natural wood texture, the surface is excellent in aesthetics, printing the desired color, for example, wood prints, general abstract pattern, monochromatic printing work and excellent moldability, the advantage of no whitening phenomenon There is this.

In addition, no bursting occurs during cutting (V-CUTTING), excellent heat resistance, almost no shrinkage change. That is, as a result of experiment, it immersed in 80 degreeC water for 30 minutes, and the longitudinal shrinkage rate is 0%.

1 is a cross-sectional view of a sheet according to the present invention
2 is a view illustrating a manufacturing process according to the present invention

Hereinafter, the present invention will be further described with reference to the accompanying drawings, Figs. 1 and 2

In the present invention, the uniform term "sheet" is used, which means that the film or fabric includes the sheet. (The film refers to 0.2 mm or less in thickness, and the sheet refers to 0.2 mm or more, which is collectively referred to as "sheet" for convenience.)

First, as shown in FIG. 2, the production method of the present invention will be briefly described. After the raw material of the sheet containing the rice husks is mixed, a chip-like pelletization operation is performed. After producing the chaff olefin sheet 1 using pellets, it is printed on a transparent olefin sheet prepared separately, the transparent olefin sheet and the chaff olefin sheet are laminated, and after the primer treatment, the surface treatment is carried out through an embossing process. Ship after inspection.

When manufacturing the sheet according to the present invention shown in Figure 1, the detail component ratio for the raw material formulation for producing the chaff olefin sheet (1) is as follows.

Raw material formulation

The component blending ratio for the preparation of chaff lepin sheet 1 is based on 100 parts by weight of polypropylene (PP) copolymer, and the remaining component blends are as follows.

(250-350 mesh) 30-60 parts by weight

Talc (CaCo3) 30-60 parts by weight

PP (copolymer) 100 parts by weight

PE (HDPE) 25-75 parts by weight

PP (Homo) 10-20 parts by weight

Wax 2-5 parts by weight

Dispersant (Zn) 2-5 parts by weight

Colors (pigments) required Color Different depending on the job

Ingredients The role of ingredients is as follows

Rice husk: It is a natural by-product that takes up the largest share of cost savings with eco-friendly properties, provides intimacy with people, recycles discarded materials, and solves the global shortage of raw materials.

Although the mixing ratio of rice hull is somewhat different depending on the product, if the content is less than 30 parts by weight, the content of other raw materials for the small amount of use increases, so that it does not produce a great effect on cost reduction. The agglomeration can result in rough holes and surface conditions in the product, which can cause many difficulties in processing during the next secondary process.

Talc: It acts as an oxidizer and is especially used for color work of sheets. It has a great influence on degradability and strength control of products and improves workability. The content varies slightly depending on the product, but if it exceeds 60 parts by weight, there are many difficulties such as being broken or broken during production. If it is less than 30 parts by weight, it does not help the product production. 150-400 mesh powder is used as the powder particles, and far infrared rays generated from ceramics included in talc are advantageous for preventing corrosion, increasing strength, and matching colors.

Copolymer (PP): plays the most important role in maintaining strength, elongation (elongation) as the center of product properties, and affects basic properties when using less than the mixing ratio (especially elongation, strength, etc.) And too strong, a lot of difficulties arise in the production of finished products.

HDPE (PE): It is used to maintain the strength and elongation of product properties, the elongation is weak and the strength is too low when used in excess of the above blending ratio, too hard when used excessively causes problems in secondary processing. That is, cracking or sagging occurs.

Homo (PP): It is used to adjust the strength of the product, and when used more than the blending ratio, the hardness is too hard and cracking occurs, so the physical properties required by the present invention can be obtained only by using the mixing ratio.

Lubricant and dispersant: When pelletizing compound work, the temperature is high in the extrusion line, so it does not change and also the dispersibility is good so that the raw material does not aggregate on the surface of the product. And defects during lamination work.

Dispersants use a dispersant containing zinc and those containing stearic acid (powder state) for the lubricant.

Colorant: Used to produce the desired color product by mixing the desired color with the colorant in the master batch. However, colorants are not necessary and may not be used.

Hereinafter, the manufacturing method procedure is demonstrated.

First, describe the chaff PP pelletizing operation (extrusion line) sequence is as follows:

The raw material of the constituent components of the chaff olefin sheet (1) mixture described above is blended and kneaded and then extruded at a temperature of 150-200 degrees Celsius. After immersing in water and cooling, it is cut, sorted, dried, stored in a space, packed and shipped.

In the production of the transparent PP product, that is, the production of the transparent olefin sheet 3 shown in FIG. 1 in the present invention, a raw material made of a small chip-shaped pallet and a sheet is produced by a conventional raw material company through the following process.

Production of transparent olefin sheets (3)

The pellet-shaped raw material is fed and extruded into a sheet form at an extruder at a temperature of 180-250 degrees Celsius. Then, the sheet is cast through a chiller roll while blowing with air knife, then naturally cooled and measured using an automatic thickness control device, wound, wound, aged in a aging room at 50-60 degrees Celsius Wind up and pack

The above two processes are the production process of the product of the transparent olefin sheet 3 and the chaff olefin sheet 1, the transparent olefin sheet 3 is preferably 0.05 mm-0.15 mm, the chaff olefin sheet 1 is preferably 0.08 -Produce 1.0mm thick.

Printing Process for Transparent Olefin Sheet (3)

The manufacturing method is different from the conventional Patent No. 10-0818696 by the present applicant, and the existing method is printed from milk white, and then moved to the next process to perform lamination. The changes resulted in significantly improved quality.

That is, in the printing process, the temperature condition and the ratio of the ink and the curing agent used in each process are very important, so the ratio of the curing agent applied in the present invention is most suitable for ink: curing agent = 100 parts by weight and 3 to 5 parts by weight, and the problem is as follows. There was no.

In addition, since the temperature is important for each printing unit, it is necessary to remove the residual solvent at 60 - 70 ° C, especially at 80 ° C or higher after printing, and last at least 2-3 days for aging

The chamber temperature of the press should be 70-80 ° C or higher.

Compared to the conventional method of printing on milk white, in the present invention, printing on transparency can improve the problem of breaking during printing, and also improve the quality problem (fine bubble phenomenon) in the lamination process of the next process and the sharpness of printing. It was good.

In addition, the aging temperature is very important at the time of aging after printing. The aging temperature ranged from 50 to 60 degrees Celsius, which allowed the printing state to be best adhered

Lamination process

The lamination process of the transparent olefin sheet 3 and the chaff olefin sheet 1

Before laminating the two members, an adhesive is applied to the transparent olefin sheet 3 printed as described above so that the adhesive layer 12 is formed. The adhesive contains 2-5% by weight of the curing agent. When passing the sheet coated with the adhesive through the chamber, the film temperature was 70 ℃ and the paper roll temperature was 60-70 ℃, but the film temperature was high. In the case of lamination, the wrinkles are severe and the adhesion is not good, and in order to improve this, the chamber temperature is worked at 70-45 ° C. and the lamination roll temperature at 70 ° C. at room temperature or 20-60 degrees C. As a result, wrinkles and overlapping defects were improved 100%, and partial adhesion defects were also completely improved. After mating, the aging temperature was also lowered from 55-60 ℃ to 45-55 ℃. Significantly improved adhesion.

Prima treatment process

Primer treatment process on bottom of laminated chaff olefin sheet (1)

In the primer treatment process, 3-5 wt% of a hardening agent is used

When passing through the chamber through the primer-treated sheet, the chamber temperature was set at 70 ° C., but the drying was insufficient, resulting in an increase in the chamber temperature due to the problem of broking in the next step, and more preferably at 90 ° C. The work resulted in an improved breaking problem and a 10% increase in throughput.

The sheet through the chamber is wound on a winder and aged at a temperature of 50-60 degrees Celsius in the aging chamber

Surface treatment process

Surface Treatment Process for Forming Hard Coating Layer (5)

After the primer treatment, a hard coating layer is formed. During the surface treatment operation, the surface treatment agent is used to contain 30-50% by weight, and after the surface treatment, it is wound through a chamber and aged at 50-6O centigrade in a aging chamber.

After the surface treatment, the chamber temperature in the chamber chamber passed through was treated at 70 ° C, but the drying was insufficient, resulting in a broking problem when working in the next process, raising the chamber temperature to 80-95 degrees Celsius, more preferably at 90 ° C. The king problem is improved, and the mesh roll using the treatment agent was also changed from 130 to 150 mesh, and the mixing ratio of the treatment agent was also adjusted to slightly mixed (matt: gloss = 7: 3) in the matt alone alone. After embossing in the process, the emboss state was compared and there was no difference in gloss and the surface scratchability was greatly improved.

As a result of checking the surface condition, the pencil hardness tester showed that the starch was at B level, but according to the present invention, it was improved from F to H level. For reference, scratches range from 9B (weakest) to F (normal level) and It is up to 9H (strongest) and good at H level.)

On the hard coat layer 6, a pattern layer 6 for forming a pattern by printing or the like may be further formed.

Embossing process

The embossing process is a process for making irregularities on the surface of the product. In the embossing process, the embossing process may be performed selectively or not by embossing the steel roll and rubber roll having the embossed shape using hydraulic pressure.

1 Hankook olefin sheet 2 primer treated layer
3 Transparent olefin sheet 4 Printing layer
5 hard coat layer 6 pattern layer
10 pressure-sensitive adhesive layer 11 release paper

Claims (5)

Chaff olefin sheet (1) containing chaff,
A primer treatment layer (2) formed on the bottom of the chaff olefin sheet (1),
A transparent olefin sheet 3 adhered to the chaff olefin sheet 1, and
A printing layer 4 formed on the bottom surface of the transparent olefin sheet 3,
Olefin surface decorative sheet using chaff, comprising a hard coating layer 5 formed on the transparent olefin sheet 3. The method of claim 1,
Olefin surface decorative sheet using chaff, characterized in that it further comprises a patterned layer (6) on the top surface of the hard coating layer (5) The method of claim 1,
An olefin surface decorative sheet using chaff, which is a structure in which a pressure-sensitive adhesive layer 10 is further formed on the bottom of the primer treated layer 2 and a release paper 11 is attached. Chaff raw material blending process comprising 30-60 parts by weight of chaff, 30-60 parts by weight of talc, 100 parts by weight of PP, 25-75 parts by weight of PE, 2-5 parts by weight of lubricant, and 2-5 parts by weight of dispersant:
Pellet forming step of pelletizing the raw material through the kneading, extrusion and cutting process of the blended raw material;
A sheet production process in which the pelletized raw material is extruded, casted, rolled, and aged to 50-60 degrees Celsius to form chaff lepin sheet (1);
A transparent olefin sheet printing process for printing on the prepared transparent olefin sheet 3, wherein the ratio of ink and curing agent is mixed at a ratio of 100 parts by weight: 3-5 parts by weight to print on the surface of the transparent olefin sheet 3;
Process of aging the printed transparent olefin sheet 3 at a temperature of 50-60 degrees Celsius for 2-3 days:
Laminating the prepared chaff olefin sheet (1) and the aged transparent olefin sheet (3) at a temperature condition of 20 to 60 degrees Celsius;
Aging the laminated sheet at a temperature of 45-55 degrees Celsius;
Process of priming aged laminated sheet at 80-95 degrees Celsius temperature condition:
Method for producing an olefin surface decorative sheet using chaff, comprising: a surface treatment step of preventing the surface scratch by performing a surface treatment with a curing agent on the primer-treated laminated sheet to form a hard coating layer (5). 5. The method of claim 4,
After the surface treatment step, the method for producing an olefin surface decorative sheet using chaff, characterized in that it further comprises a step of embossing treatment

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