JP2006008445A - Glass laminating bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass laminating bag from which a manufactured laminated glass can be easily taken out without being stuck or adhesively bonded, and which is flexible and has good durability. <P>SOLUTION: In the glass laminating bag provided with an upper cloth 3, a lower cloth 4, and a seal member 7 for freely openably and closably sealing the circumferences of these cloths, a adhesion prevention cloth 9 impregnated with an antitack agent such as crosslinkable silicone is stuck to the inner sides of the upper cloth 3 and the lower cloth 4 through a pedestal or without the pedestal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a glass bonding bag, and more particularly, to a laminated glass bonding bag in which a substance protruding from an intermediate film from a manufactured laminated glass does not adhere to the inner wall of the bag.

Laminated glass has a structure in which an intermediate film 2 of an adhesive synthetic resin is sandwiched between two transparent plates 1 such as a plastic plate such as polycarbonate and acrylic resin or inorganic glass. When manufacturing such a laminated glass, for example, as described in Japanese Patent Publication No. 63-12786, a laminated body in which an intermediate film 2 is sandwiched between two transparent plates 1 is inserted into a glass bonding bag B. (Refer FIG. 4). While reducing the pressure inside the glass bonding bag B, the glass bonding bag B is manufactured by heating with hot air.
Japanese Examined Patent Publication No. 63-12786 JP 2001-97746 A

  At this time, since the inside of the glass bonding bag B is in a reduced pressure state, the interlayer film 2 oozes out and sticks or adheres to the glass bonding bag B when taking out the laminated glass.

  In order to solve such a problem, a film (for example, a fluorine film) for preventing adhesion is attached to the inner surface of the glass bonding bag. However, since such a film has poor flexibility and is inferior in durability, it has a drawback of high replacement frequency and high cost.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a glass bonding bag that can be easily taken out without being bonded to the manufactured laminated glass and that is flexible and has excellent durability. .

  In order to solve the above-mentioned problems, a glass bonding bag according to the present invention is a laminated glass bonding bag provided with an upper cloth, a lower cloth, and a sealing member for opening and closing the periphery of the upper cloth, the lower cloth, and the upper cloth and the lower cloth. An anti-adhesive cloth impregnated with an anti-adhesive agent is stuck inside.

  According to the present invention, since the anti-adhesive cloth formed by impregnating a flexible cloth with an anti-adhesive agent is attached to the inside of the upper and lower cloths of the glass bonding bag, the interlayer film oozes out during glass bonding. However, it can be easily taken out without sticking to the glass bonding bag. Furthermore, since a flexible cloth is used, it can be integrated directly into the bag by sewing, and the anti-adhesion cloth can be used until the lifetime of the bag.

  1 is a plan view of an embodiment of a glass bonding bag B according to the present invention, FIG. 2 is a partially enlarged view of the embodiment, and FIG. 3 is a cross-sectional view taken along the line AA of FIG. As is apparent from the figure, the glass bonding bag B has an upper cloth 3 and a lower cloth 4, and a structure in which a sealing member 7 is provided on the peripheral edge 6 of the upper cloth 3 and the lower cloth 4 over the entire circumference. It has become. Then, one side 61 of the upper cloth 3 and the lower cloth 4 has a structure in which the sealing member 7 is bonded and fixed so as not to open. A reinforcing member 8 is provided at the end of the one side 61 that is bonded and fixed, and when the seal member 7 on the other side is opened, no force in the opening direction acts on the bonded and fixed portion. Yes. Any one of the sides 61 is provided with an air suction port (not shown) for evacuating the inside of the glass bonding bag.

  Further, as shown in FIGS. 1 to 3, an anti-adhesion cloth 9 is adhered to the inside of the upper cloth 3 and the lower cloth 4. For example, as shown in FIG. 2 and FIG. 3A, the anti-adhesion cloth 9 is formed with an anti-adhesion cloth 9 via a pedestal 10 provided over the entire circumference of the seal member 7. That is, the anti-adhesion cloth 9 is attached to the pedestal 10 by sewing S, and the pedestal 10 to which the anti-adhesion cloth 9 is attached is adhered to the inside of the upper cloth 3 and the lower cloth 4 with an adhesive or the like. Can be provided.

  If the anti-adhesive cloth 9 is adhered to the upper cloth 3 and the lower cloth 4 without providing the base 10, if it is provided by direct sewing, air may leak from the seam, and airtightness may be impaired. . Furthermore, when the upper cloth 3 and the lower cloth 4 are adhered to the entire surface with an adhesive or the like, the flexibility may be impaired. In order to prevent the above situation, in the present invention, the anti-adhesion cloth 9 is attached to the inside of the upper cloth 3 and the lower cloth 4 via the base 10.

  Further, as shown in FIG. 3B, when the anti-adhesion cloth 9 is provided on the upper cloth 3 and the lower cloth 4 by sewing directly, the sewing portion S is covered from the outside of the upper cloth 3 and the lower cloth 4. As shown in FIG.

  Such an anti-sticking fabric 9 is obtained by impregnating a flexible fabric with an anti-adhesive agent as described above. Such a cloth may be basically any cloth as long as it is flexible and heat resistant. For example, cloths such as polyamide 6, polyester fiber, vinylon, aromatic amide, glass cloth can be used.

  Any anti-sticking agent impregnated into such a cloth may be basically used as long as the intermediate film 2 has an anti-sticking effect. Examples of the intermediate film 2 include EVA, PVB, urethane, and acrylic films. In the case of such an intermediate film 2, for example, one or more types of silicone-based anti-blocking agents, particularly cross-linkable silicones can be used. As such a crosslinkable silicone, a combination of Poloncoat E, Cat PG, Cat PD (all trade names: Shin-Etsu Chemical) and the like can be used.

The impregnation amount of the anti-sticking agent is preferably 1 to 100 g / m ² , more preferably ² to 50 g / m ² . If it is less than 1 g / m ² , the anti-adhesion effect may not be sufficient, while if it exceeds 100 g / m ² , the flexibility is lost and it becomes hard and the durability may be inferior.

  The method for impregnating such an anti-tacking agent is not basically limited in the present invention. For example, after the anti-tacking agent is dissolved in a solvent, the cloth can be impregnated by dipping into the solution. As such a solvent, toluene or the like can be used in the case of a crosslinkable silicone.

  The anti-adhesion cloth 9 configured as described above preferably has a thickness of 0.05 to 1.0 mm. If it is less than 0.05 mm, the wear durability due to rubbing of the glass edge may be insufficient, while if it exceeds 1.0 mm, flexibility may be impaired.

  PoloncoatE: CatPG: CatPD: Toluene = 10.0: 0.2: 0.2: 89.6 parts by weight of a solution made of a polyamide 6 cloth having a thickness of 0.15 mm was dipped and heated at 130 ° C. for 1 hour. The anti-sticking agent was baked onto the cloth to produce an anti-sticking cloth.

  As shown in FIGS. 1 to 3 (a), after a base 10 was sewn to the anti-adhesion cloth 9, the base was adhered to the upper cloth 3 and the lower cloth 4 with an adhesive to produce a glass bonded bag. (Example 1). Further, as shown in FIG. 3 (b), the anti-adhesion cloth 9 is attached to the peripheral parts of the upper cloth 3 and the lower cloth 4 by direct sewing over the entire periphery, and the sewing part S is formed from the outside of the upper cloth 3 and the lower cloth 4. A glass bonding bag covered with a sealing tape 11 was manufactured (Example 2).

  Laminated glass was manufactured using the glass bonding bag having such a configuration. An intermediate film 2 (EVA) was provided between two transparent plates (inorganic glass) 1, and the inside of the glass bonding bag was evacuated and heated with hot air to produce a laminated glass.

  As Comparative Example 1, a fluororesin film was provided inside the upper cloth 3 and the lower cloth 4, and as Comparative Example 2, the upper cloth 3 and the lower cloth 4 were not subjected to any treatment.

  The above Example 1.2 and Comparative Examples 1 and 2 were installed in a furnace, and the durability was set to one cycle of 100 ° C. × 30 minutes → 130 ° C. × 60 minutes → cooling (air cooling) × 60 minutes under a reduced pressure of −93 KPa. The test was performed 3 cycles per day. It became clear that the upper cloth 3 and the lower cloth 4 of the glass bonded backs of Examples 1 and 2 were durable for about one year. On the other hand, in Comparative Example 1, wrinkles were generated after one week and became brittle and not in a state that can withstand use. In Comparative Example 2, cleaning for about 1 hour was required for each cycle, which was not practical.

  According to the present invention, since the anti-adhesive cloth formed by impregnating a flexible cloth with an anti-adhesive agent is attached to the inside of the upper and lower cloths of the glass bonding bag, the interlayer film oozes out during glass bonding. However, it can be easily taken out without sticking to the glass bonding bag. Further, since a flexible cloth is used, it can be integrated with the bag directly by sewing, and the anti-adhesion cloth can be used until the lifetime of the bag.

The top view of one embodiment of the glass joining bag of this invention. Detailed view of the embodiment. AA sectional drawing of FIG. Explanatory drawing when using a glass bonding bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transparent board 2 Intermediate film 3 Upper cloth 4 Lower cloth 5 Airtight fastener 6 Perimeter 61 Side 7 Seal member 9 Adhesion prevention cloth 10 Base 11 Seal tape

Claims (9)

In a laminated glass bonding bag provided with an upper cloth, a lower cloth, and a sealing member for sealing the periphery of the upper cloth and the lower cloth, an anti-adhesion cloth impregnated with an anti-adhesive agent is attached to the inside of the upper cloth and the lower cloth. A glass-bonded bag characterized by that. The glass bonding bag according to claim 1, wherein the anti-adhesion cloth is directly provided on the upper cloth and the lower cloth. The glass bonding bag according to claim 2, wherein the anti-adhesion cloth is attached by sewing, and the sewing portion is covered with a sealing tape from outside of the upper cloth and the lower cloth. The glass bonding bag according to claim 1, wherein the anti-adhesion cloth is provided near a periphery of the upper cloth and the lower cloth via a pedestal. The glass bonding bag according to claim 4, wherein the anti-adhesion cloth is attached to the pedestal by sewing. 6. The glass bonding bag according to claim 1, wherein the anti-adhesive agent is one or more types of crosslinkable silicone. The glass bonding bag according to claim 1, wherein an impregnation amount of the anti-sticking agent is 1 to 100 g / m ² . The glass bonding bag according to any one of claims 1 to 7, wherein the cloth serving as a base of the anti-adhesion cloth is polyamide 6, polyester fiber, vinylon, aromatic amide, or glass cloth. The glass bonding bag according to claim 1, wherein the anti-adhesion cloth has a thickness of 0.05 to 1.0 mm.

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