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

An antibacterial plastic and manufacturing process technology, applied in the field of antibacterial plastic bottle caps and its manufacturing process, can solve the problems of beverage products such as low temperature resistance, poor absorption, and precipitation of low molecular substances, so as to be beneficial to environmental protection and avoid secondary pollution , long-lasting antibacterial effect

Inactive Publication Date: 2014-08-27
DONG GUAN JIN FU IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like figure 1 As shown, a laser-printable antibacterial plastic bottle cap includes an antibacterial plastic outer cover 1 and a sealing inner pad 2, the antibacterial plastic outer cover 1 is made of ABS antibacterial plastic, and the antibacterial plastic outer cover 1 and sealing inner pad 2 pass Hot-melt adhesive fixation;

[0050] Described ABS antibacterial plastic is made up of following weight ratio raw material:

[0051] ABS material: 90

[0052] KH-550 coupling agent: 1.5

[0053] Silver-loaded inorganic antibacterial agent: 75

[0054] Polyethylene wax dispersant: 1.8

[0055] Stearic acid lubricant: 1.8

[0056] Antioxidant (ethylene-octene copolymer): 1.7;

[0057] The production material of the sealing inner pad 2 is composed of polyethylene and aluminum-based laser powder, which is calculated in parts by weight: polyethylene: 100

[0058] Aluminum-based laser powder: 2.0.

[0059]The mechanical properties of the ABS plastic are highly recognized b...

Embodiment 1

[0062] For the detection experiment result of ABS antibacterial plastic in embodiment one:

[0063]

[0064] The manufacturing process of the above-mentioned laser-printable antibacterial plastic bottle cap comprises the following steps:

[0065] A. Mix polyethylene and aluminum-based laser powder in proportion;

[0066] B. Pass the mixture obtained in step A through a twin-screw extruder at 160-180°C with a melting pressure in the range of 1.5-2.5 MPa, and then inject to obtain the sealing inner gasket 2;

[0067] C. Dry mix various raw materials of ABS antibacterial plastics in a high-speed mixer for 6 to 9 minutes, and then put them in a twin-screw extruder to make a masterbatch through melt extrusion, cooling, and pelletizing. Among them, the twin-screw extruder The temperature of the first area of ​​the machine is 165-170 °C, the second area is 175-180 °C, the third area is 200-220 °C, the fourth area is 215-220 °C; the fifth area is 210-215 °C, and the residence time...

Embodiment 2

[0072] A laser-printable antibacterial plastic bottle cap includes an antibacterial plastic outer cover 1 and a sealing inner pad 2, the antibacterial plastic outer cover 1 is made of ABS antibacterial plastic, and the antibacterial plastic outer cover 1 and sealing inner pad 2 are bonded by hot melting Knot fixed;

[0073] Described ABS antibacterial plastic is made up of following weight ratio raw material:

[0074] ABS raw material: 105

[0075] KH-550 coupling agent: 2.0

[0076] Silver-loaded inorganic antibacterial agent: 80

[0077] Polyethylene wax dispersant: 2.1

[0078] Stearic acid lubricant: 2.1

[0079] Antioxidant (ethylene-octene copolymer): 2.2;

[0080] The material for the sealing inner pad 2 is composed of polyethylene and aluminum-based laser powder, which are calculated in parts by weight: polyethylene: 100, aluminum-based laser powder: 4.5.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D41/04B65D53/00C08L55/02C08K9/12C08L23/06C08K3/08
Inventor 陈金培
Owner DONG GUAN JIN FU IND CO LTD
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