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Environmental-friendly adhesion technology for PET (polyethylene terephthalate) or APET plastic box

A technology of ethylene glycol phthalate and plastic, which is applied in the bonding field of plastic box materials, and can solve the problems of affecting the appearance, inconvenient use, and insufficient bonding strength, etc.

Inactive Publication Date: 2009-11-11
王周斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to uneven glue coating during the bonding process, it will often lead to uneven bonding; the glue after bonding will remain on the surface of PET and APET materials, which is not environmentally friendly, and the bonding strength of hot melt adhesives is not enough.
PUR is inconvenient to use, and the chemical composition contained in the above bonding produces pungent odor, which is not conducive to environmental protection
Ultrasonic bonding is foggy or bubble-like, which affects the aesthetics
However, by manually using glue to bond the plastic box, the efficiency is low, and the bonding strength is not enough, so it is not suitable for mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment 1, a PET (polyethylene terephthalate) or APET plastic box environmental protection bonding technology, is characterized in that, comprises the following steps: adopt a kind of fluid of high temperature, (such as hot air type, the Articles and substitutes are within the scope of protection of the claim), so that the surface of the part where the PET or APET plastic material below 1.2mm needs to be bonded is in an amorphous state, and after the surface of the two materials is brought into contact with the external force, the materials on both sides The amorphous state changes to the crystalline state to form a whole, thus completing the bonding.

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PUM

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Abstract

The invention relates to an environmental-friendly adhesion technology for a PET (polyethylene terephthalate) or APET plastic box. The environmental-friendly adhesion technology which is characterized by comprising the following steps: adopting a high-temperature fluid (such as hot air type, an article and a substitute are both in a range of asking for protection), and making the surface of a part of the PET or APET plastic box below 1.2 mm needed to be adhered to a non-crystalline state. After two material surfaces are made into a contact state through external force, materials at both sides are changed into a crystalline state to form a whole body, thereby adhesion is completed.

Description

Technical field: [0001] The invention relates to a method for bonding plastic box materials, in particular to the bonding of plastic box materials used for packages and stationery below 1.2mm. Background technique: [0002] Plastic material products such as PET (polyethylene terephthalate) or APET plastic boxes on the market today use glue or ultrasonic bonding or PUR or hot melt adhesive. However, due to the uneven glue coating during the bonding process, it will often lead to uneven bonding; the glue after bonding remains on the surface of PET and APET materials, which is not environmentally friendly, and the bonding strength of hot melt adhesives is not enough. PUR is inconvenient to use, and the chemical composition contained in the above bonding produces a pungent smell, which is not conducive to environmental protection. Ultrasonic bonding is foggy or bubble-like, which affects the aesthetics. However, by manually using glue to bond the plastic box, the efficiency is...

Claims

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Application Information

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IPC IPC(8): B31B1/64B31B50/64
Inventor 王周斌
Owner 王周斌
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