TWI263593B - Method of fabricating composite rubber leather utilizing extruding laminator - Google Patents

Abstract

A method of fabricating composite rubber leather utilizing extruding laminator is provided, wherein the melting thermoplastic resin thin film rolled out from die lip is rolled by a first high-speed cooling roller and a second low-speed cooling roller to obtain a thin film with plain surface and homogenous thickness, or composite rubber leather with coating on the substrate is rolled by a first high-speed cooling roller and a second low-speed cooling roller to obtain composite rubber leather with plain surface and homogeneous thickness.

Description

1263593 V. INSTRUCTION DESCRIPTION (i) Technical Field of the Invention The present invention relates to a method for manufacturing a composite rubber using an extrusion coating laminating machine, and more particularly to a low speed cooling wheel by means of a high speed cooling wheel The composite rubber which is pulled by the die lip or the cooling wheel is calendered to obtain a high quality film or composite rubber manufacturing method. [Prior Art] According to the conventional production of a thermoplastic rubber, a plastic film and a woven fabric, the composite rubber is as shown in the first figure, and the substrate 10 coated with the two-shaped adhesive is cooled by the rubber roller 1 2 Traction, at this time, the laminating machine pushes the thermoplastic resin mixture in a molten state through the lip 14 to produce a molten film 16 , which is deposited on the surface of the substrate 10 and then passes through the cooling rubber wheel 12 and The gap of the cooling embossing wheel 18 is pressed into the composite rubber by the cooling rubber wheel 12 and the cooling embossing wheel 18, but the composite rubber obtained by such a manufacturing method has the following disadvantages, such as 1. In the seasoning, the plasticizer adds a modifier, a slip agent, a color masterbatch, etc., but often the resin, the modifier, the slip agent, and the color masterbatch have different melting points and cannot be uniformly mixed, resulting in residual granules and rubberized Rough surface or broken hole; 2. After the thermoplastic resin is passed through the lip in the molten state, the thickness of the film is uneven due to the variation of the operating temperature, the operating pressure, and the flow rate of the molten rubber; 3. The screw of the extruder is the snail Suspended three outlets, so it will be sent when discharging The rotation of the raw screw produces an unstable hydraulic pressure, which causes the thickness of the film to be wave-like. 4. There is still a distance of 5 - 10 cm from the lip of the die lip to the enamel wheel and the embossing wheel. Under the action of pulling film and cooling shrinkage, both sides are too thick due to the shrinkage film; 5. Two lip lips Fixed and gap strip adjustment, using screw advance and retreat control

1263593 V. Description of the invention (2) The film that is ejected from the die lip often has a screw mark or uneven thickness of the plate; 6. Moreover, when there is a jam in the lip, there will be scratches on the film. At this time, the film portion of the composite rubber will be as shown in a partial enlarged view of FIG. A, and the surface has a plurality of scratches 19 . Accordingly, the present invention provides a method for producing a composite rubber using an extrusion coating laminator to solve the aforementioned drawbacks. SUMMARY OF THE INVENTION The main object of the present invention is to provide a method for manufacturing a composite rubber by using an extrusion coating laminating machine, which utilizes a high-speed cooling wheel that is also operated inward but has different rotational speeds and a low-speed cooling wheel. The film or composite rubber extruded from the lip is subjected to thickness defect correction to obtain a film or composite rubber of uniform thickness and defect-free quality. Another object of the present invention is to provide a method for manufacturing a composite rubber by using an extrusion coating laminating machine, which utilizes a high-speed cooling wheel and a low-speed cooling wheel which are closer to the lip to effectively maintain the subsequent bonding process. The desired temperature of the dimorphic gel is activated, and the bonding strength between the film and the substrate is further enhanced. Still another object of the present invention is to provide a method for manufacturing a composite rubber by using an extrusion coating laminating machine which utilizes a high speed cooling wheel which is also inwardly running but has a different rotational speed and a low speed cooling wheel to make the film surface The molecular structure is destroyed, causing it to produce a corona-like effect similar to the surface of the film. In order to achieve the above object, the present invention provides a method for producing a composite rubber by using an extrusion coating laminator, which comprises a thermoplastic resin in a molten state.

1263593 V. DESCRIPTION OF THE INVENTION (3) The mixture is extruded through a lip to form a first film; the first film passes through a gap between a first high speed cooling wheel and a second low speed cold wheel, and is calendered to form a second film. And performing a pressing step, bonding the second film to the surface of a substrate pulled by a third cooling wheel, and pressing and cooling with a fourth cooling wheel via the third cooling wheel to obtain a Compound rubber. In another embodiment of the present invention, a molten thermoplastic resin is extruded through a die to form a first film; the first film is laminated on a substrate pulled by a first high-speed cooling wheel. Surfacely, a first high-speed cooling wheel is attached to a second low-speed cooling wheel to form a composite rubber; and the composite rubber is re-compressed and cooled by a third cooling wheel and a fourth cooling wheel to obtain A high quality composite rubber. In order to provide a better understanding and understanding of the structural features and the efficacies of the present invention, the preferred embodiments and the detailed description are set forth below. [Embodiment] The present invention provides a method for manufacturing a composite rubber by using an extrusion coating laminating machine, which is drawn by a different substrate into a process at a time point to produce a smooth surface, no scratches, and a broken surface. Hole and precise size film or composite rubber. The machine platform embodying the present invention, as shown in the second and third figures, is added between the lip 32 and the third cooling wheel 24 and the fourth cooling wheel 26 of the conventional laminating film and machine. a first high-speed cooling wheel 28 and a second low-speed cooling wheel 30, and the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30 are two high-precision coolings of precision up to 0. 0 0 1 legs Wheel, which differs by 5 - 30%

1263593 V. INSTRUCTION DESCRIPTION (4) The speed is inward, and the distance between the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30 can be adjusted according to the required film thickness, and more effectively, Cooling through the film of the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30, the cooling water of the first high-speed cooling wheel 28 and the second high-speed cooling wheel 30 adopts a spiral-shaped frozen cooling water to Effectively increase the efficiency of cooling water to cool the surface of the cooling wheel. First, the process steps of forming a film having a smooth surface, no scratches, holes, and accurate dimensions are described. Referring to the second figure, the first high-speed cooling wheel is adjusted according to the film thickness required for the process. The distance from the second low-speed cooling wheel 30 is continued, and the thermoplastic particles of the thermoplastic resin required for the process are mixed with the masterbatch, the modifier, the slip agent and the like in a ratio to form a thermoplastic resin mixture. The mold lip 2 of the laminating machine is forced out to produce a first film 3 2 which is in a hot melt state. At this time, the temperature of the first film 3 2 is about 1 2 0 2 2 2 ° C. Then, the first film 3 2 passes through the nip of the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30 with a temperature between 80 ° and 180 ° C to generate a temperature of 6 0 1 The second film 3 4 above and below 60 ° C, at this time, because the first high speed cooling wheel 28 and the second cooling wheel 30 inward rotation speed is different, the molten film will pass through the nip first film 3 2, being calendered, that is, the thicker and thinner portion of the first film 32 will be corrected by the first high speed and second low speed cooling wheels 28, 30 to become a second film of uniform thickness. 3 4, and because the temperature of the first high-speed cooling wheel 28 and the second cooling wheel 30 is up and down by 80 to 180 °C, the process of the first film 3 2 edge in the film and cooling can be effectively reduced. The shrinkage film produced by the temperature difference, moreover, the first high-speed cooling wheel 28 and the first

1263593 V. INSTRUCTIONS (5) The pressure of the inwardly different speeds of the two low-speed cooling wheels 30 on the surface molecules of the film will cause the molecular structure of the film surface to be destroyed, causing a corona-like surface to produce a corona-like surface. The effect of processing (corona). In the continuation, a pressing step is performed, and the second film 34 is attached to the surface of the substrate 36 which is pulled by the third cooling wheel 24, and passes through the third cooling wheel 24 and the fourth cooling wheel 2. 6 Pressing and cooling to obtain a composite rubber having a uniform film thickness. 3 8 ' At this time, the fourth cooling wheel 26 can be a cooling embossing wheel to form a desired pattern on the surface of the second film 34. The third cooling wheel 24 can be an elastic rubber wheel to facilitate the flattening of the film.

Further, the substrate 36 is discussed. If the substrate 36 is a woven fabric coated with a two-shaped adhesive, for example, when the second adhesive film is made of EVA or TPU, it is necessary to use a suitable two-shaped adhesive. The woven fabric is bonded to the second film, and the second film 34 having a temperature of 60 to 160 ° C at this time will activate the dichroic adhesive to bond with the second film 3 4 of the present invention. For bonding, to obtain a composite rubber; the substrate 36 can also be a substrate 3 surface coated with a release agent, so that the second film 3 4 on the composite rubber can be separately formed in a subsequent process. Take it down. Moreover, the present invention can also be utilized to form a process step having a smooth, scratch-free, shredded, and dimensionally accurate composite rubber, see third.

Figure. At the beginning, depending on the thickness of the composite rubber required for the process, the distance between the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30 is adjusted, and the rubber particles and masterbatch of the thermoplastic resin required for the process are successively connected. The modifier, the slip agent, the color masterbatch, etc. are mixed in proportion to form a thermoplastic resin mixture, and are extruded.

Page 9 1263593 V. Description of the Invention (6) The lip of the laminator 2 2 pushes out the first film 40 which is in a hot melt state, at which time the temperature of the first film 40 is about 1 2 0 2 2 2 0 ° C up and down. Then, the first film 40 is attached to one of the substrates 42 pulled by the first high-speed cooling wheel 28 to produce a composite rubber 44, and then the composite rubber 4 4 passes through a temperature of 80 to 180 ° C. The nip of the first high-speed cooling wheel 28 and the second low-speed cooling wheel 30, at this time, because the first high-speed cooling wheel 28 and the second cooling wheel 30 rotate inward, the melting speed will be melted. The state passes through the nip of the composite rubber 44, which is calendered, that is, the portion of the composite rubber 44 which is uneven due to the thickness of the substrate 4 is carried out by the first high-speed cooling wheel and the second low-speed cooling wheel 28, 30. Corrected to become a composite rubber 44 of uniform thickness, as shown in Figure AA. Subsequently, a pressing step is further performed, and the composite rubber 4 is pressed and cooled by the third cooling wheel 24 and a fourth cooling wheel 26 to obtain a composite rubber 46 having a uniform film thickness. Of course, the substrate 42 herein may also be a substrate coated with a dimorphic adhesive or a substrate coated with a release agent. The manufacturing method of the invention is achieved by adding a first high-speed cooling wheel and a second low-speed cooling wheel to the conventional extrusion coating laminating machine, thereby achieving the hole, thickness unevenness and undulation of the film which can be effective in the subsequent rolling process. Films, scratches, and the like are corrected to obtain a high-quality film having a uniform thickness. The substrate can also be pulled by the first high-speed cooling wheel to correct the thickness unevenness of the substrate, thereby obtaining a uniform thickness. The high-quality composite rubber, in addition, the invention is a two-speed cooling wheel and a low-speed cooling wheel running at a different speed of 5-3 0%, which produces a similar corona on the surface of the film.

Page 10 1263593 V. INSTRUCTIONS (7) The results of the treatment to avoid subsequent steps of subsequent corona processing of the film, effectively saving process time and increasing the application area of the film. The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that the shapes, structures, features, and spirits described in the claims of the present invention are equally varied and modified. All should be included in the scope of the patent application of the present invention.

Page 11 1263593 Simple description of the diagram [Simple description of the diagram] The first diagram is a schematic diagram of the process of manufacturing the rubber by the conventional extrusion laminating machine. The first A picture is a partial enlarged view of the rubber skin obtained by the conventional process. The second figure is a schematic diagram of the process of the present invention. The third figure is a schematic diagram of another process of the present invention. The third A is a partial enlarged view of the composite rubber obtained by the process of the present invention. [Main component symbol description] 1 0 substrate

1 2 cooling rubber wheel 14 lip 16 film 1 8 cooling embossing wheel 1 9 scratch 2 0 composite rubber 2 2 lip 2 4 third cooling wheel 2 6 fourth cooling wheel 2 8 first high speed cooling wheel

30 second low speed cooling wheel 3 2 first film 3 4 second film 3 6 substrate 3 8 composite rubber

Page 12 1263593 Schematic description of the film 40 first film 4 2 substrate 44 composite rubber 4 6 composite rubber 1HH1 page 13

Claims (1)

1263593 VI. Patent Application No. 1 · A method for manufacturing a composite rubber by using an extrusion coating laminating machine, the method comprising the steps of: pressing a thermoplastic resin mixture in a fused state through a lip to form a first film; The first film is rolled out by a first high speed cooling wheel and a second low speed cooling wheel to form a second film; and a pressing step is performed, and the second film is attached to a base pulled by a third cooling wheel. On the surface of the material, the third cooling wheel is pressed and cooled by a fourth cooling wheel to obtain a composite rubber. 2. The method of producing a composite rubber by an extrusion coating bonding mechanism according to the first aspect of the invention, wherein the substrate may be a woven fabric having a surface coated with a two-shaped adhesive. 3. The method of producing a composite rubber by an extrusion coating bonding mechanism according to the first aspect of the invention, wherein the substrate may be a substrate coated with a release adhesive. 4. The method of producing a composite rubber by an extrusion coating bonding mechanism according to the first aspect of the invention, wherein the surface of the fourth cooling wheel has an embossing pattern. 5. The method of producing a composite rubber by an extrusion coating bonding mechanism according to the first aspect of the invention, wherein the first high-speed cooling wheel has a chilled cooling water which is spirally advanced. 6. The method for producing a composite rubber by an extrusion coating bonding mechanism according to the first aspect of the invention, wherein the temperature of the first film is 1 2 0 2 2 2 (TC). Page 14 1265593 VII. Patent Application No. 7 The method for manufacturing a composite rubber using an extrusion coating laminating machine as described in claim 1, wherein the temperature of the second film is 60 to 16 (TC). 8. The method for manufacturing a composite rubber using an extrusion coating laminating machine according to the first aspect of the invention, wherein the third cooling wheel is a rubber wheel. 9 · The use of the first item of the patent application scope The method for manufacturing a composite rubber by a laminating laminating machine, wherein the first high-speed cooling wheel and the second low-speed cooling wheel are operated inward at a speed of 5 - 30%. 1 0 · Patent application number 1 The method for manufacturing a composite rubber by using an extrusion coating laminating machine, wherein the first high-speed cooling wheel and the second low-speed cooling wheel are both high-precision cooling wheels. 1 1 · If the patent application scope is 1 0 The method for manufacturing a composite rubber by using an extrusion laminating machine, wherein the precision of the high-precision cooling wheel is ± 0.001 cm (mm). 1 2 · The use pressure as described in claim 1 The laminating machine for making composite rubber The method, wherein the thermoplastic resin mixture comprises colloidal particles and masterbatch particles of a thermoplastic resin, a modifier, and a slip agent. 1 3 · A method for manufacturing a composite rubber by using an extrusion laminating machine, the steps thereof The method comprises: pressing a molten thermoplastic resin mixture through a die to form a first film; the first film coating is attached to a surface of a substrate pulled by a first high-speed cooling wheel, and passes through The first high speed cooling wheel and a second low speed cooling wheel are calendered to form a composite rubber; Page 15 1263593 VI. Scope of Application The re-compression step is performed by recombining and cooling the composite film through a third cooling wheel and a fourth cooling wheel. A method of forming a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the substrate may be a woven fabric having a surface coated with a two-shaped adhesive. 1 5 A method for producing a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the substrate may be a substrate coated with a release adhesive. A method of forming a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the fourth cooling wheel surface has an embossing pattern. A method of producing a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the first high-speed cooling wheel has a chilled cooling water which is spirally advanced. 1 8 The method for producing a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the temperature of the first film is from 1 2 0 to 2 2 0 〇C. 1 9 The method for producing a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the temperature of the second film is 60 to 160 ° C. 2 0. The method for producing a composite rubber by an extrusion coating bonding mechanism as described in claim 13 wherein the third cooling wheel is a rubber wheel. 2 1 . The method for producing a composite rubber by an extrusion coating bonding mechanism according to claim 13 wherein the first high speed cooling wheel and the second Page 16 1263593 VI. Scope of Application The low-speed cooling train runs inward at a speed of 5 - 30%. 2 2 . The method of forming a composite rubber by an extrusion coating bonding mechanism according to claim 13 wherein the first high speed cooling wheel and the second low speed cooling wheel are high precision cooling wheels. 2 3 · A method for producing a composite rubber by an extrusion coating bonding mechanism as described in claim 2, wherein the precision of the high-precision cooling wheel is ± 0.00 1 cm (mm). 2 4 The method for producing a composite rubber by an extrusion coating laminating machine according to claim 13 wherein the thermoplastic resin mixture comprises a rubber particle and a masterbatch of a thermoplastic resin, and is modified. Agent, slip agent. Page 17