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Metal foil scalding and stamping method using ultraviolet curing adhesive

A technology of metal foil and adhesive, applied in the direction of copying/marking method, printing, etc., can solve the problems of metal foil easy to fall off, insufficient compatibility, and reduce the advantages of screen printing, so as to ensure the bonding strength and quality Effect

Inactive Publication Date: 2005-01-19
上海高雅玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the gazette also explained that if the content of the thermosoftening resin is less than 15 weight units, the thermal activation performance of the active energy ray-curable adhesive will be insufficient, and hot stamping of metal foil will also be difficult.
Because the content of thermosoftening resin is too much, the content of overlapping monomer is relatively small, so the adhesive strength of the adhesive is insufficient, and the metal foil is easy to fall off
[0010] In addition, the active energy ray-curable adhesive used has a large content of thermosoftening resin, and the compatibility between the overlapping monomer components is not sufficient. In places with low ambient temperature, the screen printing will be significantly reduced. specialty

Method used

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  • Metal foil scalding and stamping method using ultraviolet curing adhesive
  • Metal foil scalding and stamping method using ultraviolet curing adhesive
  • Metal foil scalding and stamping method using ultraviolet curing adhesive

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Experimental program
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no. 1 Embodiment

[0047] The first embodiment, that is, the metal foil stamping method as shown in FIG. 1 , includes four steps (1) to (4) as shown below.

[0048] (1) As shown in Figure 1(a), on the surface of the glass container 10, use a silane compound with a boiling point in the range of 10°C to 100°C as the fuel gas, and use its flame 11 on the entire surface of the glass container 10, or a certain Spray locally. This is the silicification flame treatment process.

[0049] (2) As shown in FIG. 1( b ), apply an ultraviolet curable adhesive 13 on the surface of the glass container 10 . The ultraviolet curing adhesive 13 contains 1-15 weight units of thermoplastic resin, 50-95 weight units of ultraviolet curing components, and 0.1-10 weight units of photoinitiator. Among them, the main component of the thermoplastic resin is acrylic compound, and the main component of the ultraviolet curing component is epoxy acrylate.

[0050] This is the adhesive application process.

[0051] (3) As sh...

no. 2 Embodiment

[0243] The second embodiment is a metal foil hot stamping method including the following four steps (1) to (4). The standard method is shown in Figure 2.

[0244] (1) As shown in FIG. 2( a ), the ultraviolet curable adhesive 33 is applied to the surface of the glass container 30 .

[0245] (2) As shown in FIG. 2( b ), the surface of the adhesive 33 is irradiated with ultraviolet light 36 to cure it and become a semi-cured state 34 .

[0246] (3) As shown in FIG. 2(c), use a silane compound as a natural gas, and spray the surface of the adhesive 34 in a semi-cured state with its flame.

[0247] (4) As shown in Figure 2(d), hot stamp the metal foil.

[0248] The order of the above four is the order of precedence.

[0249] The points not mentioned in the first embodiment will be described below.

[0250] 1. Gas storage tank

[0251] As shown in Figure 12, the first gas storage tank 132 for storing the silane compound 134 should be equipped with a heating device 136, through ...

example 1

[0264] 1. Implementation of Metal Foil Hot Stamping Method

[0265] ①Silicidation flame treatment process

[0266] use as Figure 16 The portable flame treatment device 170 shown has a flame treatment time of 1 second. The gas is prepared by mixing tetramethylsilane (0.0001 mol%) with a boiling point of 27°C and tetramethylsilane (0.00001 mol%) with a boiling point of 122°C and compressed air.

[0267] ②Preparation and application process of UV-curable adhesive

[0268] In a detachable flask with nitrogen, put 100g of ethyl acetate, 15g of methacrylic acid, 15g of acrylonitrile, 15g of ethylene, and 1g of AIBN. The weight average molecular weight is 60,000). Then, in the container with stirring device, propylene copolymer (solid) 8g (8% by weight), epoxy acrylic acid polymer (weight average molecular weight 2500) 60g, polyfunctional acrylic monomer 7g, monofunctional acrylic monomer 24g, 1g of photoinitiator, put in and stir evenly, and become ultraviolet curable adhesive...

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Abstract

The invention provides a metal foil stamping method using ultraviolet-curable binder which can make metal foil and glass container bond closely no matter how much the thermal softening resin content in ultraviolet-curable binder is. The metal foil stamping method is suitable for glass container. The method includes four working procedures: Silicifying flame treatment procedure: using silicon alkyl compound whose boiling point is in the range of 10 to100 DEG as combustion gas, and spraying the glass container surface with the flame generated by the gas combustion; daubing the ultraviolet-curable binder procedure: the ultraviolet-curable binder contains 1-15 parts by weight of thermoplastic resin, 50-95 parts by weight of ultraviolet curing component, and 0.1-10 parts by weight of photo-initiating agent; curing procedure: irradiating the binder daubed on the glass container surface with ultraviolet to cure the binder. Stamping procedure: activating the cured binder and stamping the metal foil onto the glass container surface.

Description

technical field [0001] The present invention relates to a metal foil hot stamping method using an ultraviolet curable adhesive. The glass container adopts a special surface treatment, and a special UV-curable adhesive is applied for metal foil hot stamping, so that the metal foil is tightly combined with the surface of the glass container. Background technique [0002] For a long time, the metal foil hot stamping method has been widely used in the deep processing of glass containers. After smearing a thermosetting adhesive on the surface of the glass container, it is heated to make it semi-cured, and then the metal foil is pasted on the surface of the adhesive, and then heated and pressurized to make the metal foil adhere to the surface of the glass container. [0003] This method of foil stamping using a thermosetting adhesive. It has been disclosed in JP-A-53-33723, JP-4-142517, JP-6-88449, and JP-7-67796. [0004] However, the smearing method of the thermosetting adhes...

Claims

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Application Information

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IPC IPC(8): B41M5/00
Inventor 莲沼一雄
Owner 上海高雅玻璃有限公司
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