Classification of glass materials:
The classification of glass materials is divided into wide-mouth bottles and narrow-mouth bottles. For solid pastes, wide-mouth bottles are generally used. They should be equipped with aluminum caps or plastic caps. The caps can be used for color spraying and other effects; emulsions or liquids. Paste is generally used in a narrow-mouth bottle, preferably with a pump head, and attention should be paid to prevent the spring and ball from rusting. At present, most pump heads are equipped with glass beads, which are usually used for material testing. The small hole is the same as the inner plug, and the thicker emulsion is matched with the large hole inner plug.
Common bottle shapes for glass materials: cylindrical, oval, flat, prismatic, cone, etc. Manufacturers often develop series of bottle shapes. The bottle body process includes spraying, transparent, frosted, translucent toning, silk screen, bronzing, and silver bronzing. There are usually two types of screen printing for cosmetic packaging glass materials. One is high-temperature ink screen printing, which is not easy to decolorize, has a dull color, and it is difficult to produce purple color tones. The other is low-temperature ink screen printing, which is brighter in color. The requirements are high, otherwise it is easy to fall off, and attention should be paid to the bottle disinfection.
Issues needing attention in glass materials:
1. Hand-processed glass bottles: If the glass material is made by hand-molded, there will be a little deviation in the capacity. When selecting, it should be tested and marked with the correct capacity. For example, the automatic production line is more uniform, but the demand for shipments is larger. The cycle is relatively long and the capacity is relatively stable.
2. The thickness of the glass bottle: uneven thickness of the glass material will easily cause damage or be squeezed by the content under severe cold conditions. A reasonable capacity should be tested during filling, and paper bags should be used for transportation and separated individually. , The product should be equipped with a color box, and the inner support and the middle box can play a more anti-vibration effect.
3. Glass bottle sealing: The glass material bottle cap process can be made of anodized aluminum lettering, bronzing, and etched lines. There are matte and bright colors. It must be equipped with gaskets and inner caps. It is recommended to use pressure-sensitive films to enhance the sealing effect.
4. Special glass bottles for essential oils: Essential oil bottles are usually made of brown or colored and colored frosted glass material, which can avoid light; the lid has a safety ring and can be equipped with an inner plug or a dropper. The glass material of the perfume bottle is generally equipped with a delicate spray Pump head or plastic cover.
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