Preparation method of a functionalized special-shaped glass bottle

Abstract

The application discloses a kind of functionalization of preparation method of special-shaped glass bottle, belong to glass bottle preparation technical field.It includes the following steps:Step 1: functional film layer is prepared on the surface of flat glass, and coated flat glass is obtained;Step 2: the coated flat glass is formed into bottle body half by hot bending settlement and die pressing compound;Step 3: after the two bottle body halves are finely polished and aligned and fixed, heating fusion is carried out, then flame polishing is carried out, and finally precise annealing is carried out, to obtain the functionalization of special-shaped glass bottle.The application provides a kind of "coating film first, then forming" special-shaped glass bottle preparation method, which effectively solves the problem of uneven coating film on the surface of complex special-shaped bottle in the traditional method, and the problem of poor bonding force.The process difficulty is reduced, and the integrity and firmness of the film layer on the inner surface of the bottle are ensured.

Description

Technical Field

[0001] This invention belongs to the field of glass bottle preparation technology, specifically, it relates to a method for preparing a functionalized irregular-shaped glass bottle. Background Technology

[0002] As a traditional packaging container, glass bottles have been widely used in many fields such as beverages, wines, chemical products, and pharmaceuticals due to their core advantages of stable chemical properties, excellent barrier properties, and reliable sealing. They can effectively isolate the influence of the external environment and ensure the storage stability of the contents.

[0003] However, as the performance requirements for glass bottles in various application fields become increasingly diversified and sophisticated, single-component glass materials can no longer simultaneously meet the specific usage requirements of different scenarios. Most existing glass bottles are formed using the blow-blown process, which requires high stability in the glass melt during forming. Therefore, glass formulations with relatively simple components are commonly used. While this formulation design can meet the needs of efficient production, it also leads to significant limitations in the functionality of the product and makes it impossible to achieve targeted performance optimization.

[0004] To overcome these limitations, the industry has attempted to endow glass bottles with specific properties required for reagent storage by coating the inner surface of the glass bottle with a functional film. However, in practice, it has been found that for large glass bottles or glass bottles with irregular shapes (especially those with irregularly shaped mouths), their large size, heavy weight, and complex shape make it extremely difficult to directly coat the surface of the formed glass bottle. At the same time, existing industrial production processes also face key problems such as low processing efficiency and insufficient adhesion between the film and the glass substrate, which seriously restrict the large-scale application and development of this technology.

[0005] Therefore, developing a functional glass bottle that can be flexibly assigned specific functions according to usage needs and can adapt to irregular structures, in order to overcome the limitations of existing technologies in terms of single formula and complex coating process, and to meet the diverse and high-performance usage needs of glass bottles in various fields, has important practical significance and application value. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for preparing functional irregular-shaped glass bottles.

[0007] The objective of this invention can be achieved through the following technical solutions: A method for preparing a functionalized irregularly shaped glass bottle includes the following steps: Step 1: Prepare a functional film layer on the surface of flat glass to obtain coated flat glass; Step 2: The coated flat glass is hot-bending and molding compositely formed into the bottle body half; Step 3: After the two bottle halves are finely polished and aligned on the joint surface, they are heated and fused at 600-750℃, then flame polished at 550-800℃, and finally precision annealed to obtain the functional irregular-shaped glass bottle.

[0008] Ideally, the functional film layer can be prepared by any of the following methods: magnetron sputtering, physical vapor deposition, chemical vapor deposition, or sol-gel method.

[0009] Ideally, the functional film layer is selected from one of SiO2 film layer, TiO2 film layer, and SiO2 and TiO2 composite film layer.

[0010] In a more optimized manner, the hot bending settling includes the following process: first, a concave mold matching the shape of the target bottle body is prepared; then, the coated flat glass is cut and placed on the concave mold, and heated to 780-850℃, so that it fits the curved surface of the concave mold under the action of gravity, forming a preliminary curved bottle body half.

[0011] In a more optimized manner, the molding composite includes the following process: pressing a punch preheated to 820-900℃ onto a concave mold carrying the preliminary curved bottle body half, wherein the surface of the punch is provided with fine structures for forming bottle mouth threads, bottle shoulder angles or decorative patterns; controlling the mold closing pressure to 10-20MPa, holding the pressure for 5-30min, to obtain a bottle body half with detailed structures.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The functionalized irregular-shaped glass bottle prepared by the present invention is formed by coating flat glass. Compared with glass bottle coating, it has the advantages of high film uniformity, low technical difficulty and good appearance quality. (2) The present invention can select different functional membranes as inner layer materials and perform functional design according to the requirements of reagents to be contained. Attached Figure Description

[0013] The invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a comparison chart showing the amount of various metal ion impurities precipitated after high-purity electronic reagents were placed in a glass bottle as an example. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0016] In the following examples, the chemical composition and mass percentage of the flat glass are as follows: SiO2 68.8%, Al2O3 1.8%, CaO 9.2%, MgO 0.8%, K2O 1.8%, Na2O 15.5%, Fe2O3 0.4%, C 0.7%, Na2SO4 0.4%, NaCl 0.4%, CeO2 0.2%.

[0017] Example 1: A method for preparing a functionalized irregularly shaped glass bottle, comprising the following steps: Step 1: Select the magnetron sputtering method to deposit a SiO2 functional film layer on the surface of the flat glass; Step 2: Create a concave mold (made of graphite) according to the shape of the bottle. Cut the prepared flat glass with functional film layer into a shape similar to the unfolded mold and place it on the concave mold. Heat the flat glass to 780℃ and let it slowly sink under its own weight, covering the concave mold to form half of the bottle body. The functional film layer is located on the inner surface of the bottle body. Press the convex mold preheated to 820℃ onto the concave mold. The mold closing pressure is 10 MPa, and the molding time is 5 minutes to obtain half of the bottle body with details such as bottle mouth threads, bottle shoulder angle, and patterns. Step 3: Finely polish the two half-bottles to ensure a tight fit; then use a clamp to align and fix the two half-bottles, heat the joint area to 600°C to fuse the two half-bottles together to obtain a complete glass bottle, and use flame polishing to uniformly heat the surface of the glass bottle to 550°C to improve the surface quality of the glass bottle, and finally perform precision annealing to obtain the functionalized irregular-shaped glass bottle.

[0018] Example 2: A method for preparing a functionalized irregularly shaped glass bottle, comprising the following steps: Step 1: Select physical vapor deposition to deposit a SiO2 and TiO2 composite film layer sequentially onto the surface of the flat glass; Step 2: Create a concave mold (made of silicon nitride) according to the shape of the bottle. Cut the prepared flat glass with functional film layer into a shape similar to the unfolded mold and place it on the concave mold. Heat the flat glass to 800℃ and slowly sink under its own weight, covering the concave mold to form half of the bottle body. The functional film layer is located on the inner surface of the bottle body. Then, press the convex mold preheated to 850℃ onto the concave mold. The mold closing pressure is 15 MPa, and the molding time is 15 min, resulting in half of the bottle body with details such as bottle mouth threads, bottle shoulder angle, and patterns. Step 3: Finely polish the two half-bottles to ensure a tight fit. Then, use a clamp to align and fix the two half-bottles, heat the joint area to 700°C to fuse the two half-bottles together, and obtain a complete glass bottle. Improve the surface quality of the glass bottle by uniformly heating it to 600°C through flame polishing, and finally, perform precision annealing to obtain the functionalized irregular-shaped glass bottle.

[0019] Example 3: A method for preparing a functionalized irregularly shaped glass bottle, comprising the following steps: Step 1: Select chemical vapor deposition to sequentially deposit a SiO2 and TiO2 composite film layer on the surface of the flat glass; Step 2: Create a concave mold (made of graphite) according to the shape of the bottle. Cut the prepared flat glass with functional film layer into a shape similar to the unfolded mold and place it on the concave mold. Heat the flat glass to 850℃ and slowly sink under its own weight, covering the concave mold to form half of the bottle body. The functional film layer is located on the inner surface of the bottle body. Then, press the convex mold preheated to 900℃ onto the concave mold. The mold closing pressure is 20 MPa, and the molding time is 25 min, resulting in half of the bottle body with details such as bottle mouth threads, bottle shoulder angle, and patterns. Step 3: Finely polish the two half-bottles to ensure they fit tightly. Then, use a clamp to align and fix the two half-bottles. Heat the joint area to 750°C to fuse the two half-bottles together to obtain a complete glass bottle. Improve the surface quality of the glass bottle by uniformly heating it to 800°C through flame polishing. Finally, perform precision annealing to obtain the functionalized irregular-shaped glass bottle.

[0020] Example 4: A method for preparing a functionalized irregularly shaped glass bottle, comprising the following steps: Step 1: Select the sol-gel method to sequentially deposit a SiO2 and TiO2 composite film layer on the surface of the flat glass; Step 2: Make a concave mold according to the shape of the bottle (the mold material is graphite or silicon nitride). Cut the prepared flat glass with functional film layer into a shape similar to the unfolded mold and place it on the concave mold. Heat it to 820°C and the flat glass slowly sinks under its own weight, covering the concave mold to form half of the bottle body. The functional film layer is located on the inner surface of the bottle body. Then press the convex mold preheated to 860°C onto the concave mold. The mold closing pressure is 15 MPa and the molding time is 30 min to obtain half of the bottle body with details such as bottle mouth threads, bottle shoulder angle and patterns.

[0021] Step 3: Finely polish the two half-bottles to ensure they fit tightly. Then, use a clamp to align and fix the two half-bottles. Heat the joint area to 750°C to fuse the two half-bottles together to obtain a complete glass bottle. Improve the surface quality of the glass bottle by uniformly heating it to 720°C through flame polishing. Finally, perform precision annealing to obtain the functionalized irregular-shaped glass bottle.

[0022] Testing experiment: (1) The functionalized irregular-shaped glass bottles prepared in Examples 1-4 were tested according to the industry standard for appearance inspection of glass containers. The data obtained are shown in Table 1. (2) The glass bottle of the present invention is applicable to any one of the high-purity electronic reagents selected from i-line photoresist, g-line photoresist, KrF photoresist, and ArF photoresist; the detection and testing content described below is selected from i-line photoresist; the specific operation is as follows: The functionalized irregularly shaped glass bottles prepared in Examples 1-4 were filled with i-line photoresist. After standing for 9 days, the precipitation of metal ion impurities in the reagent was detected, and the data obtained are as follows: Figure 1 As shown; Table 1 Conclusion: This invention provides a method for preparing functional irregular-shaped glass bottles using a "pre-coating, post-forming" approach. By preparing the functional film layer on flat glass, followed by hot bending, molding, and post-heating splicing, this method successfully solves the technical bottleneck of uneven surface functional coating and poor adhesion caused by the complex shape of traditional irregular-shaped glass bottles. This method not only significantly reduces the process difficulty but also ensures the integrity and high bonding strength of the functional film layer on the inner surface of the final irregular-shaped bottle. Based on the data from the examples, the prepared glass bottles exhibit excellent appearance quality, free from defects such as bubbles, cracks, stones, and deformities. Key performance tests show that the precipitation of key metal ions (such as Na, K, and Ca) on the inner surface is less than 0.1 ppb, fully meeting the stringent requirements of high-purity electronic reagents for ultra-low precipitation in storage containers.

[0023] Therefore, this invention not only has a feasible process route suitable for large-scale production, but also provides a high-quality packaging solution with reliable performance and customizable functions for high-purity, corrosive reagents required in high-end fields such as semiconductors and optoelectronics.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A method for preparing a functionalized irregularly shaped glass bottle, characterized in that... This includes the following steps: Step 1: Prepare a functional film layer on the surface of flat glass to obtain coated flat glass; Step 2: The coated flat glass is hot-bending and molding compositely formed into the bottle body half; Step 3: After the two bottle halves are finely polished and aligned on the joint surface, they are heated and fused at 600-750℃, then flame polished at 550-800℃, and finally precision annealed to obtain the functional irregular-shaped glass bottle.

2. The method for preparing a functionalized irregularly shaped glass bottle according to claim 1, characterized in that... The functional film can be prepared by any of the following methods: magnetron sputtering, physical vapor deposition, chemical vapor deposition, or sol-gel method.

3. The method for preparing a functionalized irregularly shaped glass bottle according to claim 1, characterized in that... The functional film layer is selected from one of SiO2 film layer, TiO2 film layer, and SiO2 and TiO2 composite film layer.

4. The method for preparing a functionalized irregularly shaped glass bottle according to claim 1, characterized in that... The hot bending settling process includes the following steps: First, a concave mold matching the shape of the target bottle body is prepared; then, the coated flat glass is cut and placed on the concave mold, and heated to 780-850℃, so that it fits the curved surface of the concave mold under the action of gravity, forming a preliminary curved bottle body half.

5. The method for preparing a functionalized irregularly shaped glass bottle according to claim 1, characterized in that... The molding process includes the following steps: pressing a preheated convex mold to 820-900℃ onto a concave mold that carries the preliminary curved bottle body half, wherein the surface of the convex mold is provided with fine structures for forming bottle mouth threads, bottle shoulder angles or decorative patterns; controlling the mold closing pressure to 10-20MPa and holding the pressure for 5-30min to obtain a bottle body half with detailed structures.

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