Food packing materials

A food packaging and material technology, applied in the field of food packaging materials, can solve problems such as ink pollution, human health hazards, and air pollution

CN103508074AActive Publication Date: 2014-01-15刘德成
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-01-15

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Abstract

The invention provides food packing materials. The food packing materials sequentially comprise an outer layer, parts formed after printing ink processing, non-solvent adhesives, parts formed after high-barrier processing and inner layers from top to bottom. The outer layer serves as a printing base material; patterns are printed on the inner face of the outer layer through printing ink; high-barrier processing is carried out, namely, space between the outer layer and the inner layers is coated with materials to form an isolation structure, and the outer layer is combined with one inner layer through the non-solvent adhesives. Hereby, the non-solvent adhesives will not lead to thermal expansion and pattern deformation (Pitch) of the food packing materials in the high-temperature drying and fitting process, fitting processing speed is three times the traditional speed, the non-solvent adhesives prevent residual solvents from polluting contents or generating foreign smells, and accordingly the packing materials which are free of pollution or toxicities and environmentally friendly are generated.
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Description

Technical field

[0001] The present invention is related to the printing method of packaging materials, especially the non-polluting printing method is to use water-based printing ink that is non-toxic and does not contain eight heavy metals (arsenic, cadmium, chromium, mercury, nickel, lead, zinc and copper). Solvent-free adhesive is used for adhesion, and the use of solvent-free adhesive will not cause thermal expansion and contraction and pattern deformation (Pitch) when food packaging materials are laminated under high-temperature drying; its lamination processing speed is two times faster than traditional ones. times, the solvent-free adhesive avoids residual solvents from contaminating the content (as shown in Annex 1) or causing peculiar smell, and does not harm the human body at all, or isolates harmful substances with a mandatory isolation structure, which is an environmentally friendly, non-toxic, and non-polluting product. A food packaging material. 【Background t...

Examples

Embodiment Construction

[0058] First of all, a food packaging material (2) of the present invention, the first embodiment, as Figure 2-3 As shown, the order of the packaging material 10 from the outside to the inside is an outer layer 11, ink treatment 12, solvent-free adhesive 13, high barrier treatment A and an inner layer 14, the outer layer 11 is a plastic film , is made of polypropylene material (OPP polypropylene Orient polypropylene), which is polypropylene extended by alignment, or polyester material (PET polyester polyester), used as a printing substrate, the inner surface can be printed with patterns, and the outer layer can be seen through Pattern, the polypropylene material of the outer layer 11 is a bright surface, and the printed pattern is treated with ink 12, and the water-based ink WB-INK (Water Base Ink) is printed on the inner surface of the outer layer, and then a high barrier In treatment A, the water-based nano material (shown as A in the figure) is used to coat the inner surfa...