TW496824B - Process for producing complex film of thermoplastic polyurethane and poly vinyl chloride - Google Patents

Abstract

The present invention discloses a process for producing the complex film of thermoplastic polyurethane and poly vinyl chloride. The present process is to treat thermoplastic polyurethane by a sequence of steps, that contains of dry by heat, dissolve by mix and maintain the adhesion, then use an extrusion press-lamination machine to produce a thermoplastic film, because the film is produced at high temperature, so it can combine with the poly vinyl chloride naturally. Afterward moving the adhesion of the combination film then will get the complex film. The present invention can still maintain the advantage of the thermoplastic polyurethane and poly vinyl chloride so that the complex film can use in daily life popularly.

Description

496824 V. Description of the invention (1) Field of the invention: The present invention relates to a thermoplastic film made of thermoplastic polyurea S resin (Thermop: TPU) and polyvinyl chloride (Poly Vinyl film). Background of the invention: Traditional, traditional As shown in the first figure, the method for producing a thermoplastic polyurea plastic skin is generally such that the polyurea resin 10 and polyvinyl chloride 12 rubber particles are usually the former 10 to 50% and the latter 90 to 1 4 Evenly mixed together, and at the same time added the calendering machine (Calendar Machine) A mixed plastic leather 20 finished product, such as the second urea ester resin 10 material is made of polyvinyl chloride 丨 2 materials but the above mixed plastic leather Ingredients, no polyvinyl chloride ingredients, no disadvantages in safe use. Furthermore, the traditional mixed plastic leather is not able to produce ultra-thin adhesive tapes with a thickness of 0.05 mm by the 'calendering blanket machine, which can exceed 70V ^ σ ^…, Λ, the thickness of the product can not be low, ΐ1, the main thermoplastic polyurea resin resin is stupid, soft touch with characteristics, fe ,, + mouth ..., paste mouth =, To show off in traditional blending rubber ' Disadvantages of plastic leather after-products', especially about a compound resin with polyvinyl chloride (PVC) and a mixture of polyvinyl chloride, which mixes a certain proportion of granular thermoplasticity, with a ratio of 50%. After the blender agent 16 is fully stirred, it is pressed into a film by 18 to complete the figure, and the thermoplastic polymer is fully mixed together. The tube contains any new molecules in addition to the material pressed by a calendering blanket machine containing polyethylene gas. It is also impossible to produce a thick polyurea resin with a ratio of less than 0.5 mm. Material characteristics such as wear resistance, On the other hand, it has a local peel strength and the like. Therefore, the inventor ended up in

496824 V. Description of the invention (2) To break through the traditional production method of single-layer mixed materials and provide a composite film produced by a better manufacturing method. Purpose and summary of the invention: The main purpose of the present invention is to provide a composite adhesive film which is tightly adhered together in the form of extruded leaching film, so that it has the excellent characteristics of two raw materials of thermoplastic polyurethane resin and polyvinyl chloride, and The composite film is non-toxic, and has the effects of grinding, cold, antistatic, anti-mildew, and good adhesion of the southern frequency, so that it can be safely and widely used in daily life.

Another object of the present invention is to provide an ultra-thin composite film. According to the present invention, a thermoplastic polyurea resin film is poured onto a polyvinyl chloride rubber film by extruding a film on a polyvinyl chloride rubber film. Polyvinyl chloride produces glue, which can be closely adhered without the need to borrow other adhesives, thereby forming a composite glue film. The detailed descriptions are provided below with specific examples and accompanying drawings to make it easier to understand the purpose, technical content, features and effects of the present invention. 0 Drawing number description: 1 2 and polyvinyl chloride 1 6 solvent 2 0 mixed plastic skin 3 2 resin film 3 6 composite film

1 0 Thermoplastic polyurea resin 1 4 Mixer 1 8 Calender tape machine 3 0 Thermoplastic polyurea resin 3 4 Polyvinyl chloride rubber Detailed description:

Page 6 496824 V. Description of the invention The third one is as shown in the figure. The temperature before the production of the glue film is first stirred in the extruder. Usually, the dimension (3) ^-The picture shows the process of making the composite film in the present invention. Manufacturing flowchart. A method for manufacturing a polyurea resin having a thermoplastic polyurea resin and polyvinyl chloride includes the following steps: First, in step S1, the thermoplastic polyurea resin is 30 and a dryer is used at 60 to 90. 〇 After drying for about 120 minutes, send the dried resin 3 〇 into a 'as shown in step S2, so that it is completely melted at a temperature of 150 to 230 ° C, and Strictly control the temperature of the die to keep it at a certain viscosity. The viscosity is about 100 〇 ～ 2 0 0 0 cp S, in order to facilitate the extrusion of the screw t ^ as shown in step S3. Two suspicious s in a squeeze membrane machine. After the hot melt is generated and uniformly mixed, the heating temperature is 1 5 0 ~ 2 3 (Tc, and then the τ band die Γ \ Λ 〇 ′, / λ. JXl " · M ~ 1.5mm transparent and elastic resin film 32; and then polyvinyl chloride rubber 34 with a thickness of about 0.05mm ~ l 5ram is placed under the die lip of the coating machine through the electrode or pre-secondary using a discharge wheel. At a set of inwardly-extending pressing wheels, "Hyalkaline vinyl chloride rubber 3 4 and the resin film 32 are bonded together under pressure, as in step S4, the bonding speed is about every minute. 〇 ～ 35 Meters, the extrusion pressure is 5 ~ kg ', and the extrusion wheel train is polished to avoid the above thin die from sticking to the extrusion β, the wheel'. Finally, the surface of the film after lamination is removed to remove the stickiness. The finished product of the composite adhesive film 34. The structure of the completed composite adhesive film 34 is shown in the fourth figure, and the composite adhesive film 34 is tied to a polyvinyl chloride rubber film 3 4 to extrude the heat The plastic polyurea resin film 32 is tightly bonded with the polyvinyl chloride rubber 34 at a high temperature, so that the resin film 32 is adhered to one surface of the rubber 34, and Into the

Page 7 496824 V. Description of the invention (4) ----- Composite adhesive film 34. Among them, the product produced by the present invention with a composite plastic film using a thermoplastic polyurethane resin film 32 as a surface and a polyvinyl rubber film 34 as a substrate has a non-toxic advantage, and is suitable for filling furniture that touches the body's skin. Or baby ^ stuffed toys; 2. Wear-resistant advantages, suitable for shoe uppers, handbags, table towels, waterbeds, life-saving clothes, 3. Cold-resistant advantages, suitable for high-altitude advertising balloons or snow packaging materials; 4. Antistatic The advantages of anti-mildew are suitable for electronic products; 5 • Good high-frequency bonding force is suitable for the advantages of motorboats, waterbeds and lifesaving clothes. In addition, the present invention can be a composite rubber film with polyvinyl chloride rubber as a surface material and a thermoplastic polyurea resin film as a substrate, as another embodiment, making its products suitable for medical packaging products, From the above, it can be known from the above that the present invention relates to the close adhesion of the thermoplastic polyurea resin film and the latex vinyl rubber, and Long Fei is formed in a conventionally mixed manner to be safely used. The effective ingredients on the screen are all containing polyvinyl chloride. In addition, the composite film of the present invention is manufactured by an extrusion coating machine, so it can produce southern viscous materials, and moreover, it can produce ultra-thin composite film with a thickness of less than 0. 0 5 〃. Resin material ii The composite adhesive film of the invention also has the characteristics of thermoplastic polyurethane, heat resistance, 1 such as non-toxic, non-heavy metal, anti-wear, and financial characteristics, ^ turtle f, soft touch and thermal bonding After having high peel strength and other good color, such as the characteristics of vinyl chloride material itself, such as low price, familiar with people ^ stone ^ ^ adjustable and long life and other characteristics to effectively solve. Missing skin. Therefore, adhere to the

496824 V. Description of the invention (5) The composite adhesive film system is non-toxic, wear-resistant, cold-resistant, anti-static, mildew-proof, and has good high-frequency bonding power, so that it can be safely and widely used in daily life. The above-mentioned embodiments are only for explaining the technical ideas and characteristics of the present invention. The purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. When the scope of the patent of the present invention cannot be limited, Any equal changes or modifications made according to the spirit disclosed in the present invention should still be covered by the patent scope of the present invention.

Page 9 496824 Brief description of the drawings The first picture shows the manufacturing method of traditional mixed plastic leather. The second figure is a schematic diagram of the structure of a traditional hybrid plastic skin. The third figure is a method for manufacturing a composite adhesive film according to the present invention. The fourth figure is a schematic structural diagram of a composite film of the present invention.

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Claims (1)

496824 I d: ,, η:; ”Gu L. Bu ~ Ba .. 1. A composite method of thermoplastic polyurea resin and polyvinyl chloride _WM manufacturing method, which includes the following steps: For thermoplastic polyurea The resin is dried; the dried resin is sent to an extruder to be stirred and melted to maintain a certain viscosity; the resin is used to produce a hot-melt transparent elastic film by an extrusion coating machine; the polychloride After the vinyl rubber is preheated, it is introduced into the extrusion wheel under the die lip of the laminating machine, so that the polyvinyl chloride rubber and the resin film are laminated together under pressure; and the surface of the laminated film is removed from sticking. A composite adhesive film is completed after the application. 2. The method for manufacturing a composite adhesive film as described in item 1 of the scope of patent application, wherein the resin is fed into the extruder at a temperature of 150 to 230 ° C. Stir until melted, and maintain its viscosity at 1 0 0 0 ~ 2 0 0 0 cps. 3. The method for manufacturing a composite rubber film as described in item 1 of the scope of patent application, wherein the extrusion wheel train is first subjected to Polished to prevent the film from sticking to it. 4. A thermoplastic polyurea A composite film of resin and polyvinyl chloride is formed on a polyvinyl chloride rubber. The thermoplastic polyurea resin film is tightly bonded to the rubber at a high temperature by extruding a film, so that the film adheres to the rubber. One of the surfaces to form the composite film.