What are the types of glass bottles and the standard of glass bottles?

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Glass is widely used in the fields of construction, daily use, art, instrumentation, etc., with a rich variety and superior performance. In addition to making all kinds of glass doors and windows, we often make them into various lenses, bottles, etc. Want to know what types of glass bottles are, and what standards the glass bottles must meet, please see below.


1. What are the types of glass bottles?


There are many types of classification glass bottles, and there are many classification methods.

①According to the appearance, there are general bottles, handle bottles and tube-shaped bottles, etc., with a holding capacity of 1ml~25l.


②According to the shape of the bottom, there are round, oval, square, rectangular, flat and other bottles, and most of them are round.


③According to the size of the bottle mouth, there are glass bottles with wide mouth, small mouth and spray mouth. Bottles with an inner diameter of more than 30mm and no shoulders or less shoulders are called wide-mouth bottles, which are often used to contain semi-fluid and powdery or block solid objects; those with an inner diameter of less than 30mm are called small-mouth bottles, which are often used to hold various fluid objects.


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④According to the matching form of bottle mouth and bottle cap, there are continuous thread bottle mouth, cork bottle mouth, pouring bottle mouth, crown cap bottle mouth, roll cap bottle mouth, plastic cap bottle mouth, and spray bottle mouth. , Press on-unscrew the bottle mouth, side seal-pry open the bottle mouth, glass stopper frosted bottle mouth, handle bottle mouth and tube bottle mouth and other bottles and cans. The dimensions and tolerances of the bottle mouth are standardized.


⑤According to the use requirements of glass bottles, there are disposable bottles and recycled bottles. Disposable bottles are discarded once they are used; recycled bottles can be recycled multiple times for turnover.


⑥According to the molding method, there are molded bottles and control bottles. The molded bottle is made by directly forming the glass liquid in the mold; the control bottle is made by first drawing the glass liquid into a glass tube, and then processing and forming.


⑦According to the bottle color, there are colorless, colored and milky bottles. Most glass bottles are clear and colorless, which can keep the contents in a normal image. Followed by green and brown. The green ones are usually used for beverages; the brown ones are used for medicines or beer. They can absorb ultraviolet light and help protect the contents. A few cosmetics, creams and ointments are packed in opalescent glass bottles.


2. What standards should the glass bottle meet?


Glass bottles should have certain performance and meet certain quality standards.

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①Glass quality: pure and uniform, without defects such as sand, streaks, and bubbles. Colorless glass has high transparency; the color of colored glass is uniform and stable, and can absorb light energy of a certain wavelength.


②Physical and chemical properties: It has certain chemical stability and does not interact with the contents. It has a certain degree of shock resistance and mechanical strength, and can withstand heating and cooling processes such as washing and sterilization, as well as withstanding filling, storage and transportation, and can remain undamaged when encountering general internal and external stress, vibration, and impact.


③Forming quality: maintain a certain volume, weight and shape, uniform wall thickness, smooth and flat mouth to ensure convenient filling and good sealing. There are no shortcomings such as distortion, uneven surface, unevenness and cracks.


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