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Novel cigarette aluminum foil paper based on hot melt adhesive

A technology of hot melt adhesive and aluminum foil paper, which is applied in the field of aluminum foil paper for cigarettes, can solve the problems of large recycling of aluminum foil paper, low secondary use value, and complex pulp components, and achieve high recycling efficiency

Active Publication Date: 2022-03-25
滁州卷烟材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing aluminum foil paper has a relatively large recycling problem. The main problem lies in the stripping process of the waste aluminum foil and the lining base paper. Since stripping agents are generally added, the composition of the pulp obtained by stripping is relatively complicated, and the secondary use value is low. Further separation is required and the cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing a novel aluminum foil paper for cigarettes based on hot melt adhesive, specifically comprising the following steps:

[0033] 1) Use aluminum foil with a thickness of 0.15mm, straighten the aluminum foil layer slightly through multiple rollers, coat hot melt adhesive on the upper surface of the aluminum foil layer, place a heating plate on the lower surface of the aluminum foil layer, and heat until the temperature near the upper surface of the aluminum foil layer is 120 At about ℃, the hot melt adhesive is completely melted and has a certain leveling property. After drooling for a certain distance, it is extruded by a hot roller until the total thickness of the heated melt adhesive layer on the aluminum foil layer reaches 1.5mm;

[0034] 2) Keep the temperature of the hot melt adhesive layer at 110°C, and spray the mixture evenly on its upper surface. The components of the mixture are: 100 parts of paper powder, 10-15 parts of paper fleece, 3-4 par...

Embodiment 2

[0042] The rest of the steps are exactly the same as in Example 1, except that the rolled aluminum foil layer extruded by the ceramic roller in step 6) is also polished and coated with anti-counterfeiting paint to further enhance the flatness, and the loss rate during the polishing process It is about 2%, which is acceptable. It is also understood from the side that the strength of the rolled aluminum foil layer recovered by the present invention is relatively weak. It may be considered to increase the number of laminated layers and thickness of aluminum foil fragments.

Embodiment 3

[0044] The remaining steps are exactly the same as in Example 1, except that the surface of the pulp layer adhered to the plastic plate in step 6) is also polished to further enhance the flatness. The pulp layer is not damaged during the polishing process. Although the overall thickness is the same after testing, The thickness of the pulp layer and the hot-melt adhesive layer is different, but the average thickness of the pulp layer is greater than 0.1mm, and the integrity of the pulp layer surface can not be damaged after being polished by the grinding roller.

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Abstract

The invention discloses novel cigarette aluminum-foil paper based on a hot melt adhesive, which comprises an aluminum foil layer, a hot melt adhesive layer and a paper pulp layer, and a preparation method of the novel cigarette aluminum-foil paper comprises the following steps: 1) coating the aluminum foil layer with the hot melt adhesive, heating and casting, and extruding by a hot roller until the total thickness reaches 1.5 mm; 2) spraying the mixture, and performing hot roller extrusion until the total thickness is 1mm; (3) after moisture regaining, carrying out hot roller extrusion until the total thickness is 0.6 mm; 4) performing vacuum drying, removing redundant powder, and performing hot roller extrusion to obtain finished aluminum-foil paper; 5) cutting under a softening point, and cooling and shaping after molding; 6) during recovery, stripping the aluminum foil layer and the hot melt adhesive layers at high temperature, and splicing the plurality of hot melt adhesive layers into a whole; the aluminum foil fragments are laminated layer by layer, subjected to point pressure welding, heated and fused and then extruded into a coiled aluminum foil layer; and laminating and extruding the two to prepare new aluminum-foil paper. According to the method, the aluminum foil and the paper pulp layer can be quickly separated by softening of the hot melt adhesive, and the hot melt adhesive layer and the aluminum foil fragment layer are spliced through a special process, so that the novel aluminum-foil paper with a high cyclic utilization rate is obtained.

Description

technical field [0001] The invention relates to the technical field of aluminum foil paper for cigarettes, in particular to a novel aluminum foil paper for cigarettes based on hot melt adhesive. Background technique [0002] The aluminum foil paper used in traditional cigarettes is generally composed of aluminum foil and lining base paper through adhesives. It mainly has the functions of wrapping, water-proof and moisture-proof, and anti-counterfeiting. [0003] However, the existing aluminum foil paper has a relatively large recycling problem. The main problem lies in the stripping process of the waste aluminum foil and the lining base paper. Since stripping agents are generally added, the composition of the pulp obtained by stripping is relatively complicated, and the secondary use value is low. Further separation is required and the cost is higher. [0004] Based on the above investigation results, the present invention attempts to propose a new type of aluminum foil tha...

Claims

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Application Information

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IPC IPC(8): B65D65/14B65D65/40B65D65/42B65D85/10
CPCB65D65/14B65D65/42B65D65/40B65D85/10Y02W30/80
Inventor 杜威范海亮邢连成
Owner 滁州卷烟材料有限责任公司