Novel plastic bottle cap

Abstract

The invention discloses a novel plastic bottle cap. The novel plastic bottle cap comprises a top sheet (1). An annular side sheet (2) is arranged on the outer edge of the top sheet (1) and extends to one side of the top sheet (1), wherein the top sheet (1) and the annular side sheet (2) are integrally formed. The inner wall of the side sheet (2) is provided with threads matched with threads of a bottle neck (3). The top sheet (1) is provided with an ultraviolet laser etched layer (4) which is formed through etching of an ultraviolet laser beam and can store product information. The novel plastic bottle cap is simple in structure, healthful, safe and low in cost.

Description

【Technical field】 [0001] The invention relates to a novel plastic bottle cap. 【Background technique】 [0002] At present, plastic bottle caps are widely used in the market, especially in the food and beverage filling industry. At present, in order to trace or query the product information of the product, barcodes are usually printed on the bottle cap or body, but the barcode must be read by a specific reader, which is not convenient enough. At present, there are also manufacturers who print matrix codes on bottle caps, and store product information, including production batch numbers and whether they have won prizes after opening the caps, in the matrix codes, which are generally printed on the inside of the bottle caps. However, the current matrix codes are generally printed with ink, and there will be harmful chemicals such as solvents in the ink. When the liquid in the bottle is in contact with the matrix code for a long time, it is inevitable that harmful chemicals such...

AI Technical Summary

Problems solved by technology

In addition, the cost of the production method using inkjet printing is relatively high, so no matter from which aspect, the method of using inkjet printing matrix code on the bottle cap should be improved

[0003] At present, some manufacturers use laser infrared engraving to engrave matrix codes on plastic bottle caps. Although ink is no longer used, such plastic bottle caps still have the following shortcomings: because laser infrared engraving is a thermal process, plastic bottle caps The plastic material will be carbonized during laser processing, forming a concave-convex shape, and the product is easy to deform

The liquid in the bottle is in contact with the matrix code for a long time, and the carbonized particle molecules will enter the liquid, which is not conducive to human health. Moreover, due to laser infrared heat processing, the edge of the matrix code on the plastic bottle cap will be deformed, causing users Errors are prone to occur when opening the bottle cap to scan the code, so the quality stability of the laser-etched matrix code on the plastic bottle cap is not high

Laser infrared rays are not easily absorbed by plastics because of their long infrared wavelengths and thick beams. They consume a lot of energy during use and low processing quality, which severely limits its scope of use.

[0004] In addition, at present, the connection between the plastic bottle cap and the bottleneck of the bottle body is generally a screw connection, but such a connection is also easy to loosen, and the tightness is not optimal.

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