KR20120133158A - manufacture method of tray with printed pattern - Google Patents

manufacture method of tray with printed pattern Download PDF

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Publication number
KR20120133158A
KR20120133158A KR1020110051686A KR20110051686A KR20120133158A KR 20120133158 A KR20120133158 A KR 20120133158A KR 1020110051686 A KR1020110051686 A KR 1020110051686A KR 20110051686 A KR20110051686 A KR 20110051686A KR 20120133158 A KR20120133158 A KR 20120133158A
Authority
KR
South Korea
Prior art keywords
tray
process step
sheet
film
cloth
Prior art date
Application number
KR1020110051686A
Other languages
Korean (ko)
Inventor
정희영
Original Assignee
정희영
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정희영 filed Critical 정희영
Priority to KR1020110051686A priority Critical patent/KR20120133158A/en
Publication of KR20120133158A publication Critical patent/KR20120133158A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

PURPOSE: A method for manufacturing a tray with printed patterns is provided to adhesive force to cloth or raw sheets as ethylene vinyl acetate resins are extruded on an oriented polypropylene film, and laminated by dry lamination. CONSTITUTION: A method for manufacturing a tray with printed patterns comprises following steps. Cloth or fabric(30) is laminated on a casting polypropylene film(10) and oriented polypropylene film(20) by dry lamination. An EVA resin(40) is extruded on the oriented polypropylene film. The oriented polypropylene film is laminated by the dry lamination. The EVA resin coated on the oriented polypropylene film is thermally fused with a polyethylene terephthalate glycol sheet(50). The laminated sheet is formed by a vacuum or press machine, and the tray is manufactured.

Description

Manufacturing method of tray with printed pattern {manufacture method of tray with printed pattern}

The present invention relates to a tray manufacturing method provided with a printing pattern, and more specifically, to CPP film and fabric first laminated with a dry lamination, and OPP film extruded EVA resin, and then dry lamination OPP film and fabric By minimizing defect rate by heat-sealing PET-G extruded sheet without cooling EVA resin, and making it possible to make secondary processing by improving adhesion even for sheets with different melting point between resins. The present invention relates to a tray manufacturing method provided with a printing pattern to enable tray molding by molding.

Generally, a patterned synthetic resin tray is made by printing a pattern on a melamine synthetic resin sheet and then bending it to form a tray, or placing a printed cloth sheet on a glass fiber reinforced plastic (FRP) sheet, and then using an adhesive resin. It is a common method to attach and bend them.

In addition, the method of printing on the melamine synthetic resin sheet is more vivid than the use of glass fiber reinforced plastic (FRP) and can express a variety of patterns, but it is weak to scratches such as scratches and very weak to impact. Therefore, trays made of glass fiber reinforced plastic (FRP), which are extremely resistant to impact and scratches, have been released.

However, the tray by the printed sheet has a merit of expressing the texture to give a more luxurious feel, while the smooth surface is impossible due to the characteristics of the woven fabric, so the printed pattern is not clear or finer. There is a problem that the shape is not represented.

In addition, even when the pattern pattern is expressed by various colors, the fabric sheet has excellent hygroscopicity, and the colors are mixed with each other at the boundary where heterogeneous colors are mixed to produce an unwanted color or the pattern pattern to be expressed indefinitely. There is this.

In order to solve this problem, there has been proposed a molding method of a glass fiber reinforced plastic tray having a pattern shape, which is formed by bending a glass fiber reinforced plastic (FRP) sheet and a cloth sheet. In the tray molding method, an adhesive resin is interposed between the cloth sheet and the lower glass fiber reinforced plastic (FRP) sheet and the upper glass fiber reinforced plastic (FRP) sheet and pressed by the upper and lower molds, and the upper sheet is pressed. By superimposing and crimping a paper sheet printed with a pattern on the surface, the adhesive resin is configured to penetrate through the gap between the paper sheet and each sheet, to be adhered, and to be impregnated into the paper sheet.

In the prior art having such a configuration, since the FRP resin is poured into paper and impregnated, the adhesion between the plastic sheet and the paper sheet is greatly degraded, thereby causing a lot of defects.

In addition, since the paper sheet is laid on the cloth sheet and the resin is poured, the resin is hardened, so that the fabric is not bent at the intermediate layer of the resin and is bent a lot, resulting in unevenness in quality and a large increase in manufacturing cost due to the high price of the acrylic resin. There is a problem.

The present invention has been made to solve the problems caused in the manufacture of conventional trays, while laminating a cloth or fabric printed pattern between the two films of the CPP film and OPP film, EVA heat-adhesive to the OPP film Resin is extruded and laminated by dry lamination to improve adhesion between cloth or fabric and film, as well as fusion by PET-G sheet and heat press to form trays or dishes through vacuum and press molding. Its purpose is to provide a tray manufacturing method provided with a printing pattern.

Tray manufacturing method provided with the printing pattern of the present invention as a means for achieving the above object, the first step of laminating a cloth or fabric to dry polypropylene (CPP) film and OPP (Oriented Polypropylene) film by dry lamination (Dry Lamination) Steps; A second process step of extrusion coating an EVA resin on an OPP (Oriented Polypropylene) film in which the cloth or fabric is laminated; A third process step (S3) of laminating the OPP film and cloth or fabric by dry lamination; A fourth process step of heat-sealing the PET-G sheet with the EVA surface extruded and coated on the OPP film of the second process step without being cooled; The fourth process step includes a fifth process step of manufacturing a tray by molding with a vacuum press molding machine after the heat fusion process.

The present invention is different from the melting point between different resins by laminating a cloth or fabric printed with a pattern between the CPP film and the dissimilar film of the OPP film by drylination and heat-sealing the PET-G sheet with the EVA surface not cooled. Even the sheet of physical property is strongly maintained and can be secondary processed by heat using the manufactured sheet, so it is possible to form trays or dishes by vacuum and press molding, and it is not compatible with resins and does not adhere to each other or is incompletely bonded. As this is the most part, the incidence of defects generated can be minimized, and the manufacturing cost is greatly reduced, thereby not burdening the purchase cost of the consumer.

1 is a process chart of the tray manufacturing method provided with the inventor of the printing pattern.
Figure 2 is a block diagram of a product produced by a tray manufacturing method provided with a printing pattern of the present invention.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown, the present invention provides a tray manufacturing method provided with a printing pattern, the first process step (S1), the second process step (S2), the third process step (S3), the fourth process step and the fifth process step It is made by (S5).

The first process step S1 is a process step of laminating the cloth or fabric 30 to dry lamination on the CPP (casting polypropylene) film 10 and the OPP (Oriented Polypropylene) film 20.

Dry Lamination is a uniform coating of water-based or organic solvent-type adhesives on various substrates such as plastic film, cellophane, AL-FOIL, paper, etc. The other base material is bonded to the adhesive layer thus obtained, and the sheet is pressed between a metal roll and a rubber roll heated to 50-120 ° C., and passed through a cooling roll.

The second process step (S2) is a process step of extrusion coating the EVA resin on the OPP (Oriented Polypropylene) film 20 on which the cloth or fabric 30 is laminated.

At this time, the OPP film 20 may be laminated with another cloth or fabric by dry lamination.

In addition, the third process step S3 is a process step of laminating the OPP film and the fabric or fabric 30 by dry lamination, and the fourth process step S4 is the second process. The process step of heat-sealing the PET resin with the PET-G sheet 50 without the extrusion-coated EVA resin 40 to the OPP film 20 of step (S2), the production of a sheet for forming a tray Is done.

As described above, the CPP film 10 and the OPP film 20 and the cloth or the fabric 30 are laminated by dry lamination, and the PET-G sheet 50 and the heat are heated before the extrusion coated EVA resin 40 is cooled. By fusion, after printing in a gravure method on a conventional PVC material, the compatibility with the resin is lowered as the lamination at the time of extrusion is reduced and the problem that the defective rate is generated due to non-stick or incomplete adhesion is solved.

That is, when laminating the CPP film 10, the OPP film 20, and the cloth or fabric 30, the EVA resin 40, which can be heat-bonded, is extruded and fused with heat, thereby making the cloth or fabric having different melting points between the resins. Even if the adhesive is strongly maintained, the secondary processing is possible by heating the PET-G sheet 50, the cloth or the fabric is laminated, it is possible to mold the tray by a vacuum or press molding machine.

At this time, as a resin that can replace the PET-G material can be replaced by GPPS, ACRYL, SAN, ABS, etc. and all the extrusion molding is possible to use a plastic resin.

Forming the tray is made by a fifth process step (S5), by the fourth process step (S4) after the heat-sealing treatment with the PET-G sheet 50 to form a tray by vacuum or press molding machine.

As the tray can be formed using the CPP film and the OPP film in which the pattern-printed cloth or the fabric is laminated as described above, various pattern patterns are possible on the tray to be formed, and the quality non-uniformity of the manufactured product can be minimized. In addition, the product quality and manufacturing cost can be greatly reduced by selecting various thicknesses and various types of extruded sheets without necessarily using expensive acrylic resins, so that it does not burden consumers' purchase cost.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

10: CPP film
20: OPP film
30: cloth or fabric
40: EVA resin
50: PET-G Sheet
S1: first process step
S2: second process step
S3: 3rd process step
S4: 4th process step
S5: 5th process step

Claims (1)

A first process step (S1) of laminating cloth or fabric 30 by dry lamination to a CPP (casting polypropylene) film 10 and an OPP (Oriented Polypropylene) film 20;
A second process step (S2) of extrusion coating EVA resin on the OPP (Oriented Polypropylene) film 20 on which the cloth or fabric 30 is laminated;
A third process step (S3) of laminating the OPP film 20 and the cloth or fabric 30 by dry lamination;
A fourth process step (S4) of heat-sealing the PET-G sheet 50 in a state in which the EVA resin 40 extruded and coated on the OPP film 20 of the third process step (S3) is not cooled;
And a fifth process step (S5) of manufacturing a tray by forming a tray by vacuum or press molding after the heat fusion treatment by the fourth process step (S4).
KR1020110051686A 2011-05-30 2011-05-30 manufacture method of tray with printed pattern KR20120133158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110051686A KR20120133158A (en) 2011-05-30 2011-05-30 manufacture method of tray with printed pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110051686A KR20120133158A (en) 2011-05-30 2011-05-30 manufacture method of tray with printed pattern

Publications (1)

Publication Number Publication Date
KR20120133158A true KR20120133158A (en) 2012-12-10

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Application Number Title Priority Date Filing Date
KR1020110051686A KR20120133158A (en) 2011-05-30 2011-05-30 manufacture method of tray with printed pattern

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220144581A (en) 2021-04-20 2022-10-27 성인제 UV-printed acrylic kitchenware manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220144581A (en) 2021-04-20 2022-10-27 성인제 UV-printed acrylic kitchenware manufacturing method

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