Anti-bacterial plastic bottle cap where laser printing can be conducted, and manufacturing process of anti-bacterial plastic bottle cap

Abstract

The invention relates to the technical field of plastic bottle cap machining, in particular to an anti-bacterial plastic bottle cap where laser printing can be conducted, and a manufacturing process of the anti-bacterial plastic bottle cap. The plastic bottle cap comprises an anti-bacterial plastic outer cover and a sealing inner gasket, wherein the anti-bacterial plastic outer cover is made of ABS anti-bacterial plastic, and the anti-bacterial plastic outer cover and the sealing inner gasket are bonded and fixed through hot melting. The sealing inner gasket is made of polyethylene and aluminum base laser powder, and the effective anti-bacterial time of the sealing inner gasket can be the same as the service life of the anti-bacterial plastic bottle cap. The developing laser power adopted for the sealing inner gasket is made of aluminum base, and therefore the laser powder can well absorb the laser beam spectrum formed when oscillation and acceleration are conducted on argon atoms; the temperature of the irradiated area is rapidly increased due to the fact that the irradiated area absorbs energy of lasers, a series of physical and chemical changes occur on the surface of the irradiated area according to the characteristics of material, and therefore images or characters with high contrast ratio are formed. Existing aluminum base laser master batches are replaced by laser master batches made of aluminum base, and therefore food safety of the product is enhanced.

Description

technical field [0001] The invention relates to the technical field of plastic bottle cap processing, in particular to a laser-printable antibacterial plastic bottle cap and a manufacturing process thereof. Background technique [0002] At present, plastic containers are widely used in industrial production and people's daily life, especially in the packaging of various food and pharmaceutical products. Plastic bottle caps are used as supporting products for plastic containers. The packaging of pharmaceutical products plays an important role. In practical application, the inside and outside of food and medical plastic containers are very easy to infect and breed bacteria, and the inside and outside of the matching plastic packaging bottle caps are also very easy to infect and breed bacteria. [0003] Infection of bacteria in plastic packaging for food and medicine will lead to deterioration of food and medicine or shorten the validity period of the packaging. Infection of b...

AI Technical Summary

Problems solved by technology

[0007] 1. The laser absorption spectrum has poor absorption of the spectrum of the inner pad material. After laser development, the contrast is poor and the development effect is not good;

[0008] 2. The lead-based laser powder added to the inner pad material contains heavy metal lead, and the inner pad of the bottle cap is the part that comes into contact with food, posing food safety hazards

[0009] 3. The beverage product after filling is not resistant to high temperature, and there is precipitation of low-molecular substances in the temperature range of 25-40°C, and the defects are obvious

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