Non-backing-paper adhesive-sticker-free dry battery label film and packaging method of dry battery label

Abstract

The invention relates to a non-backing-paper adhesive-sticker-free dry battery label film and a packaging method of a dry battery label. The label film disclosed by the invention is an entire composite longitudinal thermal shrinkage film and is provided with label units of dry batteries and film offcut by die cutting; a plurality of junctions are reserved on die cutting transverse lines; a die cutting depth at the position of each junction is 60 to 80% of a thickness of the label film; and run-through die cutting is carried out at other positions; an attachment structure to the film offcut isformed by the junctions; and by tension control, a structure of each label unit, which can be automatically curled to coat the dry battery, is formed. The packaging method disclosed by the invention comprises the steps of: coating a solvent capable of dissolving a plastic film material of a lower plastic film layer on the back of the label film, fusing the junctions by the solvent or snapping thejunctions by an external force, enabling the label units to be automatically curled to coat the dry batteries, and recovering the film offcut; adhering transverse lapped positions of the tails of thelabel units; and carrying out hot baking by a hot baking device to enable the label units to be shrunk at the anode and cathode end parts of the dry batteries so as to complete packaging. The non-backing-paper adhesive-sticker-free dry battery label film and the packaging method of the dry battery label have the advantages of environmental protection and cost reduction.

Description

technical field [0001] The invention relates to a dry battery label film with no bottom paper and no self-adhesive, and a packaging method for the dry battery label. Background technique [0002] The current dry battery label packaging technology has a history of 30 years. The longitudinal heat shrinkable film such as PVC or PETG is used as the label raw material, which is coated with self-adhesive and peeled off the backing paper. The factory automatically labels and packs on the automatic self-adhesive labeling production line. At present, the degree of automation is relatively high, reaching a speed of 60 batteries / minute, and the most advanced one has reached 120 batteries / minute. [0003] The composition of the existing dry battery single-layer label is composed of ink layer, PVC or PETG longitudinal heat-shrinkable film layer, aluminum-plated layer, self-adhesive layer, and peeling back paper; PETG longitudinal heat-shrinkable film is the raw material of the label, a...

AI Technical Summary

Problems solved by technology

[0003] The composition of the existing dry battery single-layer label is composed of ink layer, PVC or PETG longitudinal heat-shrinkable film layer, aluminum-plated layer, self-adhesive layer, and peeling back paper; PETG longitudinal heat-shrinkable film is the raw material of the label, and its composition is the upper plastic film layer, the ink layer, the composite adhesive layer, the aluminum-coated layer, the lower plastic film layer, the self-adhesive layer, and the peel-off backing paper. The aluminum layer and the ink layer are sandwiched between the two layers of plastic film, which have the functions of anti-alkali, wear-resistant and beautiful. However, both the double-layer label and the single-layer label use self-adhesive and peel off the backing paper, self-adhesive And stripping backing paper accounts for more than 50% of the cost of label materials. The glue used in self-adhesives is prone to volatilization of VOCs, which can easily affect the health of front-line production workers. Today, environmental protection requirements are getting higher and higher, and production must be strictly controlled. Pollution sources, and the most effective way is to use as little as possible or even not use these VOCs volatile pollution sources

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