KR20060025396A - Production method for forming the pattern of synthetic resin in silicon master tube - Google Patents

Abstract

In the present invention, in manufacturing a silicon embossing roller for embossing embossed patterns on a synthetic resin sheet surface such as polyvinyl chloride or polyurethane sheet, a silicone master for synthetic resin sheet pattern relief The present invention relates to a tube manufacturing method, the present invention relates to a silicon master tube manufacturing method for a synthetic resin sheet pattern relief, in order to produce a small epoxy embossed mold as a piece of silicon engraving plate, on the pattern surface of the silicon engraving plate 40 prepared Marking an arbitrary line and making an incision according to the flow of the intaglio pattern around the marked line, then engaging the incision site to first bond the back side of the pattern and to join the front side; Next, an arbitrary longitudinal center line s is displayed on the silicon plate 40, and symmetry lines c and c 'are formed at regular intervals with the longitudinal center line s at both ends of the ends parallel to the vertical center line s. ) And a vertical connection line (b, b '), and cutting in the same manner as the cutting and joining method of the horizontal center line (h); The incision part of the longitudinal center line (s) is located at the left and right ends, the incision part of the transverse center line is located at the top and bottom ends, and the incision and the junction part of each end are to be indicated by cross-shaped connecting lines connecting the top, bottom, left and right. The length of the four sides of the cut and joined silicon plate 40, the horizontal size is 1 / m of the length of the silicon roller, the longitudinal size is 1 / n size of the circumferential length of the silicon roller; And placing the silicone plate 40 on a horizontal stand and installing the model frame approximately 5 cm outward from the distal end of the four directions and pouring and curing the epoxy resin so that the silicon plate in the model frame is sufficiently submerged. Forming an embossed mold.

Synthetic resin sheet surface, embossed pattern, embossing roller, master tube

Description

Production method for forming the pattern of synthetic resin in silicon master tube}             

1 to 10 is a view showing a silicone master tube manufacturing process for the synthetic resin sheet pattern relief according to the first embodiment of the present invention,

10 to 22 are views showing a silicon master tube manufacturing process for the synthetic resin sheet pattern relief according to the second embodiment of the present invention.

In the present invention, in manufacturing a silicon embossing roller for embossing embossed patterns on a synthetic resin sheet surface such as polyvinyl chloride or polyurethane sheet, a silicone master for synthetic resin sheet pattern embossing for producing a negative silicon tube constituting the surface of the silicon embossing roller It relates to a tube manufacturing method.

The method of manufacturing a silicon master tube according to the prior art coats and hardens a silicone resin on the surface of a natural leather in order to highlight a pattern having the same effect as a natural leather pattern on a synthetic resin sheet, and cut and connect a plurality of large silicon plates thus obtained. The large silicon plate is formed into a tube, and then a silicon tube is formed from an embossed epoxy roller, and the silicon tube is attached to the outer circumferential surface of the round iron rod to form a roller.

The silicon embossed roller made by the method of manufacturing the silicon master tube has a circular iron rod including a rotating shaft inside, and a negative silicon pattern coating layer is bound on the outside thereof, and uses the embossed natural leather pattern on the surface of the synthetic resin sheet. Used as

Here, the master tube manufacturing method of embossing the embossed pattern on the surface of the synthetic resin sheet is mainly made of a technique of rotating compression bonding the synthetic resin sheet softened by heating with a silicon emboss roller.

However, the method of fabricating the silicon embossed roller has a direct effect on the product value of the synthetic resin sheet when the silicon engraved tube forming the surface of the silicon embossed roller is directly affected. Due to the lack of bubble removal technology of silicone tubes, it was difficult for silicone embossed rollers to completely reproduce the delicate pattern of natural leather on synthetic resin sheets.

For example, in Korean Patent Publication No. 1982-2341 (December 31, 1982), "A manuscript was prepared by cutting it into a size of 10 cm x 6 cm in consideration of the shape, size, and depth gloss of irregularities in the selected skin. A homogeneous mixture of 100 g of polydimethylsiloxane, 30 g of methyltrimethoxysilane, 30 g of average particle diameter and 30 g of ethyl silicate having a surface area of 110-150 m 2 / g and 10 g of dibutyl tin laurate was used as a vacuum pump. The bubble mixed at 60 mmHg was degassed for about 30 minutes, and the degassed liquid mixture was applied to the surface of the document at a thickness of 20 g / m 2 for about 5 minutes at room temperature, and the mixed bubble was removed after 30 minutes by force. The film was cured in time and peeled from the original to obtain a negative silicon elastomer sheet, and the process was repeated to obtain 250 identical silicon elastomer sheets, and the 250 silicon elastomer sheets were interconnected. After a predetermined outer cylinder (inner circumference: 100cm, width: 150cm hereinafter) it was attached to the concave portion toward the inside in the radial direction.

Subsequently, an iron roller (outer circumference: 98 cm width: less than 150 cm or less the same day) was installed inside the outer cylinder to keep the distance between the two cylinders at 5 mm. Between these intervals, a homogeneous mixture of 7,000 g of epoxy resin and 3,000 g of dimethylene amine prepared in advance was injected and left at 100 ° for 1 hour to cure. The entrained air was removed by the method described above. After cooling to room temperature the outer cylinder is removed and an embossed epoxy resin roller formed. After making sufficient modifications to the joints found in this roller, the epoxy roller is placed in another outer cylinder to maintain the spacing at 5 mm, at which point 7,000 g of polymethylsiloxane, 300 g of methyltrimethoxysilane, and ethyl are added again. A homogeneous mixture of 300 g of silicate and 100 g of dibutyltinlaurate is injected, cured and then inverted to obtain a negative silicone elastomer tubing.

However, the embossing roller manufacturing method described above manufactures a large amount of small silicon plates from the right skin, and interconnects them to form a tube, and then injects and hardens an epoxy resin on the inner surface of the tube to make an epoxy roller, and a silicon tube is manufactured from the epoxy roller. Although the basic process is described, there are many problems in the process of obtaining the tube and the process of obtaining the resin layer.

With reference to this, the silicon master tube manufacturing method must repeat the process of cutting all the small silicon plates to the same standard in order to make a large number of small silicon plates and to interconnect them to form a tube.

However, this method of manufacturing the silicon master tube takes considerable cutting time, and it is difficult to cut each small silicon plate to the same standard every time it is cut, and thus the connection accuracy of the pattern is lowered.

In addition, the tubed silicon plate is attached to the inside of the outer cylinder with the engraved part facing inward, and an iron roller is inserted into the cylinder to maintain the interval between the inner and outer cylinders at 5 mm intervals, and the epoxy resin is injected and cured in the gap. In the process of remaking epoxy roller, the process of injecting epoxy resin into the engraved silicone tube is almost closed, so the injection process cannot be visually confirmed. In the event of a phenomenon, proper remedial action cannot be taken immediately.

In addition, in the process of making the negative silicon tube from the epoxy roller, the injection process cannot be visually confirmed, and thus, if there are bubbles in the silicone resin, hardening, and poor coating, it is impossible to take immediate remedial action. Finally, after the silicon tube was manufactured, it was inevitable to use it. This is difficult to supply the silicone embossed roller in response to the prescribed delivery date of the orderer, and moreover, the most important silicon intaglio pattern connection state is insufficient, thereby lowering the product value of the embossed synthetic resin.

Since silicone resins and epoxy resins are generally viscous, there is a risk of air mixing into the resin during injection or coating, even if the air bubbles in the resin have been sufficiently removed before use. The process should be essentially parallel.

Therefore, the present invention is designed to solve the above problems, a small epoxy embossed mold plate that can be standardized and the precision of the connection of the pattern in the cutting process of the small silicon plate must be repeated several times during the process of increasing the size of the small silicon plate By using this method, the large silicon connecting tube can be precisely shortened, and the process can be shortened in one step. It is an object of the present invention to provide a method for manufacturing a silicone master tube for a plastic sheet pattern relief.

Hereinafter, a description will be given with reference to the process drawings attached to the manufacturing method of the synthetic silicone sheet pattern relief silicon master tube of the present invention.

1 to 10 are views showing a silicon master tube manufacturing process for synthetic resin sheet pattern relief according to a first embodiment of the present invention.

The manufacturing process of the small epoxy embossed mold in the method for manufacturing a synthetic resin sheet embossed silicon master tube according to the present invention is shown in Figure 1, the manufacturing process of the epoxy roller is shown in Figure 2, the silicon master tube is shown in Figure 3 It will be described according to the manufacturing process shown.

The actual circular shape that can be selected as the surface pattern of the silicone embossed roller is innumerable, such as natural leather, woven pattern, wood grain pattern, but in the embodiment of the present invention, the natural leather pattern will be described.

In Fig. 1, the silicon negative plate 10 is placed on a horizontal band (not shown), and the selected raw natural leather 12 is placed on the silicon negative plate 10, and the surface of the natural leather 12 is subjected to surface treatment. After this, the first silicone resin 14 is coated and cured.

In this application hardening, surface treatment refers to a work action that can obtain an optimal silicon negative plate such as washing the leather surface, adjusting the depth of leather pattern, giving surface gloss, coating silicone resin release agent, and preventing coating of silicone resin hardening.

Next, in FIG. 2, when the silicone resin 14 is coated and cured, an epoxy resin plate 16 having a peeling structure is formed, and the epoxy resin plate 16 has the same surface effect as well as fine pores as well as gloss. Have

In Figures 1 and 2, the silicone resin 12 and the epoxy resin plate 16 has been developed a variety of types, but most of them are viscous, since there is a risk of bubble mixing during use, be sure to perform a defoaming process before use after mixing It is important to select a thermo-added type resin that is curable at room temperature and cured at a shorter speed by heat.

3, the operation | work which apply | coats and hardens the 2nd silicone resin 18 on the surface of the said epoxy resin board 16 is performed. In addition, since the size of the small epoxy mold plate to be manufactured in a future process will be determined by referring to the size of the leather, the size of the pattern, and the texture of the pattern, the size of the small epoxy embossed mold is expected to be in advance. Make one or more silicon plates.

For example, if the expected small epoxy embossed mold is 30cm wide by 25cm long and the silicon plate is 40cm wide by 20cm long, two silicon plates should be prepared.

In this embodiment, a method of manufacturing a small epoxy embossed mold as a sheet of silicon engraved plate will be described.

4 is a symmetrical line (a) which draws an arbitrary horizontal center line (h) on the patterned surface of the prepared silicon intaglio plate (40) and has a constant interval with the horizontal center line at the inside of both ends parallel to the horizontal center line (h). a ') is displayed.

Next, in Fig. 5, the incision is made according to the flow of the intaglio pattern around the center line (a, a ') of the silicon intaglio plate 40, and then the two symmetric lines of the two ends are matched to match the pattern size and pattern of both ends. The optimum common point for the natural harmony of the flow is indicated by the zigzag line 41 and then cut. Then, joining the incised both ends (44,44 ') and joining the back side first, and joining the front side, the two incisions of the transverse centerline are located at both ends and the symmetrical incisions at both ends are connected together. Is formed

In FIG. 6, a vertical symmetry line c is formed on the silicon plate 40 at a predetermined distance from the longitudinal center line s at an inner side of both ends of which the vertical longitudinal line s is displayed and parallel to the longitudinal center line s. , c ') and vertical junction lines b and b'.

5 and 6, the following cutting and joining method is the same as the cutting and joining method of the horizontal center line (h) is cut as shown in FIG.

Therefore, the incision part of the longitudinal center line (s) is located at the left and right ends, the incision part of the transverse center line is located at the top and bottom ends, and the incision and the junction part of each tip are indicated by cross-shaped connecting lines connecting the top, bottom, left and right. (FIG. 8).

It is important here that the length of the four sides of the cut and joined silicon plate 40 is the size of the horizontal direction is 1 / m of the length of the silicon roller, the length of the longitudinal direction should be 1 / n size of the circumferential length of the silicon roller do. For example, if the circumferential length of the silicon roller is 75 cm, the longitudinal size of the cut-and-joined silicon plate is 1 / n of the circumferential length, that is, 1/2 = 37.5 cm 1/3 = 25 cm 1/4 = 18.75 cm, etc. When multiple silicon plates are joined together, they should match the length of the circumference. If the length of the large silicon plate made by joining a plurality of silicon plates 40 is greater than the length of the circumference, it causes inconvenience to cut and remove the large silicon plate again according to the length of the circumference, thereby the flow of the standardized pattern This is because a case where this is distorted occurs.

Next, as shown in FIG. 9, the model 90 of the silicon plate 40 is placed on a horizontal stand, and the silicon engraving model 92 is installed approximately 5 cm outward from the tip of the incision in four directions. A small epoxy embossed mold is produced by pouring and curing the epoxy resin so that the silicon plate in the inside is sufficiently submerged.

The epoxy model plate of the silicon plate 40 manufactured in FIG. 9 has an opposite embossed pattern shape of a silicon model cut in a point within 5 cm from four sides on an epoxy embossed mold 50, and has a cross-shaped silicon tip. A seam trace 94 is shown, which is easily removed by using engraving (FIG. 10).

Referring now to Figures 11 to 22, a silicon master tube manufacturing process for synthetic resin sheet pattern relief according to a second embodiment of the present invention.

From the epoxy embossed mold 50 to produce a large number of large silicon plate 100 to cover the size of the outer peripheral surface of the silicon embossed roller (Fig. 11), the large silicon plate 100 produced at this time is left and right It is the same line, and the upper and lower sides are the same line, and the silicon plate of a large size is produced simply by cross-connecting in the transverse direction and the longitudinal direction without the need for additional silicon plate cutting process (FIG. 12).

At this time, the pattern is centered on the circular metal pipe of the inner diameter size of the silicon plate connecting tube (110, Fig. 13) made by connecting the both ends of the circumferential direction of the silicon plate 100, such as the circumferential length of the tube (110) Insert the metal pipe in the direction of the rotational roughness of approximately 10 ㅀ tilt and then rotate while slowly pouring the epoxy resin 114 on the surface of the inner silicon connection tube 110. The coated epoxy is a thin film coating on the pattern surface of the silicon connection tube 110 by the viscosity, and the surplus except the coated resin flows out into the container 118 at the lower end of the metal pipe 116 (FIG. 14). .

After the epoxy resin is applied, the metal pipe 116 is installed in the vacuum tank 120 where the inside is visible, and the air in the tank 120 is forcibly removed, and the pattern surface of the silicon connection tube 110 and the epoxy resin coated ( Epoxy resin 114 penetrates to the delicate part of the silicon pattern surface while the micro air droplets at the interface of 114 are forcibly removed (FIG. 15).

Next, after completing the bubble removal operation by moving the metal pipe 116 to the horizontal rotation support base 122 (Fig. 16), by rotating the additional epoxy resin on the surface of the previously applied epoxy resin 114 5mm thick Apply and cure to extent (FIG. 17). At this time, if the heat of 80 ~ 100 ?? is applied inside and outside of the metal pipe 116, the curing speed of the epoxy resin 114 can be accelerated, and when the initial heat is applied, the viscosity of the epoxy resin 114 is lowered, thereby improving flowability. As a result, an epoxy roller 118 having a uniform thickness on the metal pipe 116 can be obtained.

When the curing of the epoxy resin is completed, it is taken out of the metal pipe 116 and the seam traces generated when the plurality of silicon plates are connected are removed by using engraving. On the surface of the epoxy roller 118, the same embossed pattern as the circular leather pattern is continuously arranged at regular intervals, and can be stored permanently with strong properties peculiar to epoxy, and a large amount of silicon master tube is produced every time the silicon embossed roller of the same pattern is manufactured. It can be produced.

Next, the roller support roll 120 is placed in the center of the epoxy roller 118, installed on the rotary coating machine 122, and slowly rotated to harden by coating a third silicone resin 124 on the surface to a thickness of about 2 mm. (Fig. 18) In this case, the silicone resin coating method is to spread the silicone resin evenly as a rubber blade or by connecting a plastic tube of 1 cm in diameter from the silicone resin mixing tank, and the silicone discharged from the plastic tube into a spiral of 1 cm interval. The coating method is effective for controlling the thickness of the coating and preventing bubble mixing. If the surface pattern of the epoxy roller is very delicate or there is a concern about the presence of microbubble holes (pinholes) on the surface of the epoxy pipe, a thin silicone resin is applied to the surface of the epoxy roller using a rubber blade and then the vacuum tank 126. When the air in the tank 126 is forcibly removed (FIG. 19), the silicon resin 124 of the epoxy roller is removed while the microbubbles of the surface pattern surface of the epoxy roller and the boundary surface of the third silicone resin 124 are removed. Penetrates to the fine pattern (Fig. 20). After removing the bubbles, the fourth silicon 128 is further coated and cured on the coated silicone resin 124 surface (FIG. 21). When the fourth silicone resin 128 is cured, the silicon master tube 130 constituting the outer circumferential surface of the silicon emboss roller is completed by peeling and inverting it from one end of the tube (Fig. 22).

The silicon master tube 130 manufactured through the above process may be used as a pattern model when manufacturing various plating emboss rollers such as nickel emboss rollers.

Accordingly, the present invention provides a silicone embossing roller for manufacturing a silicone embossing roller for embossing embossed patterns on the surface of a synthetic resin sheet such as polyvinyl chloride or polyurethane sheet according to the method for manufacturing a synthetic resin sheet embossing silicone master tube. There is a practical effect of easily, conveniently and effectively manufacturing the negative silicon tube constituting the surface.

Claims (2)

In the silicone master tube manufacturing method for the synthetic resin sheet pattern relief, In order to make a small epoxy embossed mold as a sheet of silicon engraving, Displaying an arbitrary line on the pattern surface of the prepared silicon negative plate 40, and making an incision according to the flow of the intaglio pattern around the marked line, by joining the cut portion to join the back side of the pattern first and then joining the front surface ; Next, an arbitrary longitudinal center line s is displayed on the silicon plate 40, and symmetry lines c and c 'are formed at regular intervals with the longitudinal center line s at both ends of the ends parallel to the vertical center line s. ) And a vertical connection line (b, b '), and cutting in the same manner as the cutting and joining method of the horizontal center line (h); The incision part of the longitudinal center line (s) is located at the left and right ends, the incision part of the transverse center line is located at the top and bottom ends, and the incision and the junction part of each end are to be indicated by cross-shaped connecting lines connecting the top, bottom, left and right. The length of the four sides of the cut and joined silicon plate 40, the horizontal size is 1 / m of the length of the silicon roller, the longitudinal size is 1 / n size of the circumferential length of the silicon roller; And, The miniature epoxy embossed mold is formed by placing the model of the silicon plate 40 on a horizontal stand and installing the model frame about 5cm outward from the distal end of the four directions and pouring and curing the epoxy resin so that the silicon plate in the model frame is sufficiently locked. Synthetic resin sheet pattern relief silicon master tube manufacturing method comprising the step of. In the silicone master tube manufacturing method for the synthetic resin sheet pattern relief, A large number of large silicon plate 100 is formed from the epoxy embossed mold 50 to cover the size of the outer circumferential surface of the silicon emboss roller, but the large silicon plate 100 has the same line on the left and right, and the top and bottom are the same line. As a step of forming a cross-connection in the transverse direction and longitudinal direction without the need for additional silicon plate cutting process; Insert the silicon plate connecting tube 110, which is made by connecting the two circumferential ends of the silicon plate 100 in the circumferential direction, in a circular metal pipe having an inner diameter of the same diameter as the circumferential length of the tube 110 so that the pattern faces the center direction. Installing the pipe on a rotating platform of approximately 10 mm incline and rotating the epoxy resin 114 slowly on the surface of the inner silicon connecting tube 110; Then, the applied epoxy is a thin film coating on the patterned surface of the silicon connection tube 110 by viscosity, the surplus except for the coated resin flows into the container 118 at the lower end of the metal pipe 116; When the metal pipe 116 is installed in the vacuum tank 120 where the inside is visible and the air in the tank 120 is forcibly removed, the interface between the pattern surface of the silicon connection tube 110 and the coated epoxy resin 114 is applied. The epoxy resin 114 penetrates to the minute portion of the silicon pattern surface while the fine air bubbles are forcibly removed; Next, after completing the bubble removing operation, the metal pipe 116 is moved to the horizontal rotating cradle and installed to rotate, and the additional epoxy resin is applied to the surface of the previously applied epoxy resin 114 to a thickness of about 5 mm and cured. ; And, When the curing of the epoxy resin is completed, removing from the metal pipe 116 and removing the seam traces generated when the plurality of silicon plates connected to each other using a engraving degree; Synthetic resin sheet pattern relief silicon master tube manufacturing method comprising a.

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