JPS6073831A - Method of molding composite laminate - Google Patents

Abstract

PURPOSE:To obtain a drawing material rich in three-dimensional effect, by using two or more different sheets which have been preheated under fairly different condutions, and vacuum forming integrally or pressure forming them simultaneously. CONSTITUTION:A polypropylene plate 1 is coated with a chlorinated polypropylene, and then is secured to jigs 2 with the adhesive coated surface down. Then a soft polyvinyl chloride film is perforated, and is then secured to higs 4, and the gas transmission rate is made 50sec. Heaters 5-7 are advanced so that both of the surfaces of the polypropylene plate may be heated to a temperature of 200 deg.C for a period of 1min 30sec, while one of the surface of the soft polyvinyl chloride film 3 may be heated to a temperature of 170 deg.C for 20sec. After the heating, the mold 8 is lifted, and the mold, the polyvinyl chloride film and the polypropylene plate are put together and are vacuum formed. Thus a drawing material is obtained wherein the polypropylene plate and the soft polyvinyl chloride film are integrated.

Description

[Detailed description of the invention] By using two or more sheets with significantly different preheating conditions and performing simultaneous vacuum forming or pressure forming, a rich three-dimensional effect can be achieved and the manufacturing method can be simplified. Easy composite laminated molding facing material? It relates to a manufacturing method.

The present invention will be explained in detail below. In other words, the base material is a Atsumachi Ie synthetic box fingerboard with a thickness of several percent, and a thermoplastic synthetic resin film of the same or different type (thickness of several iff/Z) is laminated thereon, giving a three-dimensional effect. When manufacturing by vacuum forming, which is convenient and convenient, it is generally laminated to a thermoplastic synthetic resin board, such as a thermoplastic synthetic resin film, and then integrated in advance by vacuum forming. This method is known, but the preheating conditions for the thermoplastic synthetic fingerboard and thermoplastic synthetic resin film used in this method are similar to enable vacuum forming. If there is, no problem will occur, but if the pre-heating conditions to make vacuum forming possible are significantly different between the two (in this case, compared to film, there will be no problem). (Synthetic ceramic fingerboards require much more intensive heating) and may cause problems such as discoloration of the thermoplastic synthetic resin film. Furthermore, since the process of laminating a thermoplastic synthetic fat-resistant film onto the thermoplastic biosynthetic resin board serving as the base material increases, it is difficult to say that this is an advantageous method from a cost perspective.

The present invention makes the thermoplastic synthetic fat film to be laminated with air permeability by using perforation processing, etc.
In addition, both the thermoplastic synthetic resin plate that is the base material and the thermoplastic synthetic resin film are independent of each other.
By heating at the optimum heating conditions in two heating chambers with a control system, it is possible to easily manufacture composite laminate molded products by simultaneous integrated vacuum forming without causing the above-mentioned disadvantages. It makes it seem possible.

First, a room for preheating the thermoplastic synthetic resin film and a room for preheating the thermoplastic synthetic resin film for lamination are set up separately, and each room is heated under its own optimal conditions. Preheat.

At this time, in order to provide ventilation to the thermoplastic or synthetic resin film that is the laminate film, a large number of fine holes are punched using a laser beam, a punching roll, or the like. The air permeability is preferably 100// or less according to JIS P-8117.

In this way, once both the thermoplastic synthetic resin board and the thermoplastic synthetic expanded film are heated to the optimum conditions for vacuum forming, the base material thermoplastic printing board and the laminating film are heated. Place the thermoplastic resin film on the side of the thermoplastic resin film for lamination with a mold formed in the desired shape, and then degas it under appropriate conditions to open the ventilation holes of the thermoplastic resin film for lamination. The basic thermoplastic composite board is pulled and integrated with a mold of the desired shape, and a thermoplastic film for lamination is laminated onto the base material, and a composite laminate molded product corresponding to the mold is completed. be.

In addition, in order to integrate the laminate film with a thermoplastic adhesive plate or thermoplastic adhesive film, do not use a suitable adhesive before preheating it. Coating is also required depending on the base material used and the laminating film.

The l111 just described is a molded product made by combining two materials, such as base 4A, and +M film, but the present invention can be applied to combinations of two or more materials in the same way as in the case of two types. Needless to say.

In this way, by simultaneous heating and simultaneous vacuum forming of two or more types of Geetna with significantly different preheating conditions to make vacuum forming possible, composite laminate molded products with a rich three-dimensional design can be easily produced. I can do it.

Hereinafter, specific measurements of the present invention will be described, but needless to say, the present invention is not limited thereto.

Example As shown in Fig. 1, the thickness is 69, the length is 1000%, and the width is 5.
A chlorinated polypropylene adhesive was previously applied to a polypropylene plate (1) to be used as an adhesive, and the plate was fixed to a jig (2) with the adhesive-coated side facing down.

Next, a soft polyvinyl chloride film with a thickness of 0.2 mm (3
) was fixed to the jig (4). This soft polyvinyl chloride film was previously subjected to perforation processing and had an air permeability of 50 seconds.

The heaters (5), ((5), and (7) forming the polypropylene plate were advanced as shown in Figure 1, and the polypropylene plate (1) was heated on both sides, at a concentration of 200°C, and for a heating time of 1 minute and 30 seconds. ShiC
The soft polyvinyl chloride film (3) was heated on one side, at a humidity of 170° C., and for a heating time of 20 seconds.

After heating, the mold (8) was lifted, and the mold, polyvinyl chloride film, and polypropylene plate were stacked and vacuum formed as shown in Figure 2. As shown in Figure 3, the Voliv L1 pyrene plate and soft polyvinyl chloride film were formed. 19 completely integrated, three-dimensional facial features were created.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a state in which two types of sheets are heated in separate heating chambers. FIG. 2 is an explanatory view of the state in which the heater is moved and removed and two types of heated sheets are stacked one on top of the other. 1 FIG. 3 is an explanatory view showing a state in which molding is completed using a mold. Specific disease purification P) (no change in content) 1...Polypropylene plate 2...Jig 3...Soft polyvinyl chloride film 4...Jig 5.6.7...Heater 8.・Mold
△, B...Heating all patent applicant Kazuo Suzuki representative of Toppan Printing Co., Ltd.■7IjJE (Method) February 10, 1980 Commissioner of the Japan Patent Office 1, Indication of the case 1982 Patent Application No. 182828 No. 2, Name of the invention: Method for forming a composite laminate 3, Relationship with the person making the amendment 11 cases Special h'F Applicant's address: 5-1 Taito-chome, Taito-ku, Tokyo, ? +
li iJ-Instruction 11 E1 Showa Ei 9;1.
January 1'1, 5, Amendment: 11 Detailed Description of the Invention of Paragraph 1 Section 6, Contents of the Amendment ■ No changes to the clear contents of pages 6 and 7 of 1. )

Claims (1)

[Claims] When manufacturing a molded product with a rich three-dimensional design by laminating two or more types of G-TONA with significantly different preheating conditions to enable vacuum or pressure forming, it is necessary to remove the sheet located at the deepest part of the molded product. All sheets are provided with a ventilation chamber using an appropriate method, and all sheets constituting the molded product are preheated at the same time under the optimum heating conditions for each sheet using an independent heating chamber. A method for forming a composite laminate, which is characterized in that all the sheets are laminated and integrally molded at the same time.