Glass bottle heat shrink masking process

Abstract

The present invention provides a heat shrinkable shielding process for glass bottles, comprising the following steps: S1: identifying, through experimentation, a material for injection-molded heat shrinkable film that is resistant to high temperatures and diluent corrosion; S2: manufacturing the material into a size and shape that matches the shielding position of the glass bottle; S3: manually positioning and shielding the shielding area; and S4: changing the shielding sequence of the tearable film from first applying the tearable film and then heat shrinking the film to first heat shrinking and then applying the tearable film, thereby resolving the problem of gaps caused by poor adhesion of the heat shrinkable film to special-shaped bottles, which can lead to glaze intrusion during glazing. The heat shrinkable shielding process for glass bottles has the following advantages: This method, when applied to shielding processes, reduces labor costs, improves production efficiency, increases product qualification rates, and resolves glaze residue disposal issues. It also addresses the problem of poor adhesion to special-shaped and curved glass bottles, which can lead to glaze intrusion during glazing.

Description

Technical Field

[0001] The present invention specifically relates to a heat shrinking shielding process for glass bottles. Background Art

[0002] With the development of economy and the progress of society, people's demand for the appearance and packaging of glass bottles is also increasing. The multi-color spray-glazed products of glass bottles are deeply loved by customers for their rich color performance and beautiful visual appearance, and also occupy a large market share.

[0003] The color separation process for spray-glazed products requires partial masking of the separation interface with film or adhesive wrapping. Larger areas require masking with tooling, manual adhesive wrapping, or adhesive gluing. However, for some unusually shaped products where tooling is not feasible, the industry utilizes adhesive wrapping or adhesive gluing. However, both methods, including adhesive wrapping and adhesive gluing, are associated with high labor costs, low production efficiency, low product qualification rates, and the unavoidable disposal of glaze residue.

[0004] In summary, a glass bottle heat shrink shielding process is proposed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to address the deficiencies of the prior art and provide a glass bottle heat shrinking shielding process, which can well solve the above-mentioned problems.

[0006] In order to achieve the above requirements, the technical solution adopted by the present invention is: to provide a glass bottle heat shrinking shielding process, which includes the following steps:

[0007] S1: Through experiments, we found the material of injection heat shrink film that is resistant to high temperature and diluent corrosion;

[0008] S2: Make the material into a size and shape that matches the occlusion position of the glass bottle;

[0009] S3: Manually locate and block the blocked area;

[0010] S4: By changing the order of covering the tearable film, instead of applying the tearable film first and then heat shrinking the film, it is changed to heat shrinking first and then applying the tearable film. This solves the problem of gaps caused by the heat shrink film on special-shaped bottles, which leads to glaze entering when spraying.

[0011] The advantages of this glass bottle heat shrink shielding process are as follows:

[0012] This method is applied to the masking process to reduce labor costs, improve production efficiency, increase product qualification rate, solve the problem of glaze residue treatment, and at the same time solve the problem of poor fitting of special-shaped and curved glass bottles, which causes glaze to enter during glaze spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 The figure schematically shows a flow chart of a glass bottle heat shrinking shielding process according to one embodiment of the present application. DETAILED DESCRIPTION

[0015] In order to make the objectives, technical solutions and advantages of this application clearer, this application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] In the following description, references to "one embodiment," "an embodiment," "an example," "an example," etc. indicate that the embodiment or example described may include certain features, structures, characteristics, properties, elements, or limitations, but not every embodiment or example necessarily includes the certain features, structures, characteristics, properties, elements, or limitations. In addition, repeated use of the phrase "according to one embodiment of the present application" may refer to the same embodiment, but does not necessarily refer to the same embodiment.

[0017] For the sake of simplicity, certain technical features well known to those skilled in the art are omitted in the following description.

[0018] According to one embodiment of the present application, the heat shrinkable shielding process for glass bottles is aimed at products with large areas that need to be shielded by tooling, manual wrapping of glue, and adhesive bonding. By finding a suitable heat shrinkable plastic film, the film is applied to the shielding process to reduce labor costs, improve production efficiency, increase product qualification rate, and solve the problem of glaze residue treatment. The technical problems to be solved by this patent are: 1. Find a suitable material formula (provided by Plus Company). The material must be resistant to high temperatures of 190C° and resistant to corrosion by diluents. 2. Find a heat shrinkable film suitable for the baking and glazing processes of glass bottles, which can not only have a suitable fit with the bottle body, but also cannot stick to the bottle body and not be loose. 3. Solve the problem of glaze entering the special-shaped and curved glass bottles when they are not firmly fitted during glazing.

[0019] According to one embodiment of the present application, a glass bottle heat shrink shielding process is provided, such as Figure 1As shown, a heat shrink film is made using a synthetic process using linear low-density polyethylene (LLDPE) as the middle layer and polypropylene (PP) as the inner and outer layers. The following steps are then followed: First, through experimentation, an injection-molded heat shrink film material with a high-temperature resistance of 180°C and diluent corrosion resistance is identified; second, the material is manufactured into a size and shape that matches the shielding position of the glass bottle; third, the shielding area is manually positioned and shielded; fourth, through repeated experiments, a matching temperature of 180°C, a baking oven belt speed of 30Hz, and a heating and shrinking shielding time of one hour from entering the oven to exiting the oven are determined; fifth, the order of applying the tear film first and then heat shrinking the film is changed to heat shrinking first and then applying the tear film, solving the problem of loose heat shrink film on special-shaped bottles, which creates gaps and allows glaze to enter during spraying.

[0020] According to one embodiment of the present application, the heat shrinkable masking process for glass bottles can reduce the cost of raw materials by an average of approximately 0.5 yuan, and is expected to reduce costs by approximately 500,000 yuan; the expected efficiency increase is 10%, and the efficiency is converted into labor cost reduction of approximately 270,000 yuan. (According to the Wuliang Impression Gift series, it is expected to produce 800,000 bottles per year, the Xi / Xiangrui Tianfu series / Xiangrui Tianfu Cultural Wine series is expected to produce 200,000 bottles per year, and other products are calculated at 500,000 bottles per year. According to the original process, each person can complete 150 bottles per day, requiring 10,000 people to complete. It is estimated that the new process can complete approximately 165 bottles per day, requiring 90,900 people to complete. The labor cost is approximately 300 yuan / day, which can save 909 people * 300 = 270,000 yuan) It is expected to achieve an annual comprehensive reduction of approximately 770,000 yuan.

[0021] According to one embodiment of the present application, the heat shrinkable masking process for glass bottles is applied to the Wuliang Impression Gift series Xiangtai Blue. In March, the new method was used to produce 65,000 Wuliang Impression Gift series 211 bottles, saving 0.56 yuan per bottle, a total of 36,400 yuan. Employee productivity increased by 20%. With the old process, 150 bottles per person per day required 433 people, while with the new process, 180 bottles per person per day required only 361 people. This translates to a total economic benefit of 72 people * 300 yuan per person = 21,600 yuan. This resulted in a total cost reduction of 58,000 yuan.

[0022] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they are not to be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the claims.

Claims

1. A heat shrink shielding process for glass bottles, characterized in that: The steps include: S1: Through experiments, we found the material of injection heat shrink film that is resistant to high temperature and diluent corrosion; S2: Make the material into a size and shape that matches the occlusion position of the glass bottle; S3: Manually locate and block the blocked area; S4: By changing the order of the tear-off film covering, instead of applying the tear-off film first and then the heat shrink film, to heat shrinking first and then applying the tear-off film, the problem of the heat shrink film on the special-shaped bottle not being firmly attached and causing gaps, which causes glaze to enter during glazing; The injection molded heat shrinkable film uses linear low-density polyethylene as the middle layer and co-polypropylene as the inner and outer layers, and is made into a heat shrinkable film through a synthesis process. Step S3 also includes step S31 after step S3: through multiple experiments, it is determined that the matching temperature is 180°C, the baking furnace mesh belt running speed is 30Hz, and it takes 1 hour from entering the furnace to exiting the furnace to perform heating and shrinking shielding.

2. The glass bottle heat shrink shielding process according to claim 1, characterized in that: The injection heat shrinkable film is resistant to high temperatures of 180°C.

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