Material introduction of cosmetic aluminum-plastic tube

Material introduction of cosmetic aluminum-plastic tube

There are five main materials for cosmetic aluminum-plastic tubes: ordinary silver sheets, ordinary white sheets, high-gloss sheets (also called high-bright sheets), all-plastic transparent sheets, and fully-shaped white sheets. The five kinds of sheets have their own characteristics. The biggest difference is that the printing effect is different. The common point is that the printing effect is very realistic.

In addition, each material has different thicknesses. The most commonly used thickness specifications for cosmetic packaging are: 250μm, 270μm, 300μm, 330μm, 350μm, 400μm, and materials exceeding 400μm. The production process is very demanding, many manufacturers cannot make it. 350μm materials are commonly found in high-end cosmetic packaging, such as facial cleanser, sunscreen, etc. Sheets below 300 μm are generally found in hand cream tubes, toothpaste tubes, and the like.

Plastic cosmetic tube overall structure and its function

Plastic cosmetic tube overall structure and its function

A common plastic cosmetic tube can be divided into a tube tail (A), a tube tube (B), a tube shoulder (C), a tube head (D) and a tube cap (E).

Tube tail (A): It can be made according to different market requirements: straight grain tailing, twill tailing, umbrella tailing, star point sealing, special type sealing, and various shapes. Its main purpose is to increase the shelf display effect. , causing consumer attention, thereby enhancing sales competitiveness. The general production date code is also printed at the end of the tube.

Body (B): The body of the tube for containing lotion, cream.

Plastic tube shoulder (C): The joint part of the hose head and the tube should pay attention to the connection space when making the design artwork, generally 3mm.

Tube head (D): Matches the cover with different shapes and different shapes. The discharge hole of the tube head needs attention, and the pore size is generally selected according to the viscosity of the material to reach the most complete use effect. If the fluidity of the material body is very good, it is necessary to appropriately select the discharge hole of the small pore diameter; on the contrary, if the material body of the paste type is to be appropriately selected, the discharge hole with an enlarged pore diameter is appropriately selected.

Tube cap (E): The tube cap has various shapes and is generally divided into a flat head cover, a round head cover, a high cover, a cover, a super flat cover, a double cover, a spherical cover, a lipstick cover, and a plastic cover. On the processing, bronzing, silver, colored cover, transparent, fuel injection, plating, etc., pointed mouth cover. The hose cover is an injection molded product and the hose is a pull tube.

Advantages of choosing aluminum foil bags for cooked foods

Advantages of choosing aluminum foil bags for cooked foods

Plastic bottles will deform when exposed to heat, and it is difficult to restore the original shape in the usual way.
1, plastic bottles will deform when exposed to heat, which is caused by thermal effects. Especially those plastic bottles with thin wall thickness, such as mineral water bottles, are deformed as soon as they are hot. At this point, it is harder to restore.

2, the plastic bottle will deform when exposed to heat, the general method is difficult to restore it to its original shape. However, if the plastic bottle is deformed by heat under certain environmental conditions, it will be restored to its original shape by heat. This condition is: when the temperature is 150--160 ° C, a certain pressure is applied, and with the help of a specific mold, it will be restored to its original shape by heat.

3. Use a shaped object like a wooden block to hold the plastic part into the shape you want, then put it in the oven for 80 or 90 degrees for 2 hours and it will become your shape, or hot. The torch can be blown.

4. The melting point of this plastic is relatively low, and the temperature of boiling water is enough to soften it and shrink into a mass. There is no way to recover. If you really want to recover, you have to use a mold.

5, the main component of the plastic bottle is synthetic resin, it is a synthetic polymer material, in the case of high temperature, the original structure between the molecules is destroyed, melted, so it becomes awkward. The thermal expansion and contraction is a change in the molecular spacing when the molecules are not destroyed. Change the volume without changing the essence. So there is no possibility of getting bigger.

What problems should be paid attention to in the printing of aluminum foil self-adhesive labels?

What problems should be paid attention to in the printing of aluminum foil self-adhesive labels?

The aluminum foil self-adhesive surface material is a composite material of paper and aluminum foil. Like the metal and plastic surface, the ink is dried only by oxidation, polymerization, volatilization, conjunctiva, and solidification without a permeation process. Therefore, ink drying and blocking are two prominent problems when printing. Aluminum foil paper generally has a surface coating, there is no ink fastness problem, and a reasonable solution to ink drying problem is the key to aluminum foil printing.
According to the characteristics of aluminum foil paper, the general design principles of printed graphics are:
First, it is based on simple words and symbols, fully displaying the characteristics of metallic colors, instead of metal signs, and more applications on commodities, such as household appliances and daily necessities.
Second, large-area solid printing or negative printing, instead of large-area bronzing processes, such as wine labels, industrial labels. Aluminium foil paper rarely has color-coded printing.
Silver foil paper circle label aluminum foil paper is divided into two printing methods: web and sheet.
1 web printing. Mainly in letterpress printing. Simple patterns and hand-labeled labels can be used to solve the problem of ink drying by cutting the sheets and drying them on the shelves. Large-area patterns and labels requiring automatic labeling should be printed with ink. In the absence of drying, the filming method is generally used to solve the drying problem of the ink.
2 sheetfed printing. Mainly based on offset printing, suitable for large-area, mesh printing. Due to the improper drying of the ink during continuous printing of the sheet, it is easy to cause many quality problems. To ensure normal printing and quality, the following measures should be taken:
Use aluminum foil special inks, such as aluminum foil inks from Suzhou and offset offset paper inks from Tianjin Toyo Ink.
A proper amount of desiccant is added to the ink to increase the drying speed of the ink.
Add alcohol to the dampening solution to reduce the emulsification of moisture and ink to prevent smudging.
Master the amount of paper stacking, generally a single sheet is suitable, and the rack is dried to avoid sticking due to excessive weight of the paper.
Adjust the viscosity and thickness of the ink and add additives according to the actual situation.
Keep the production environment of the printing workshop, the temperature is controlled at about 20 degrees, so that the ink is in the best condition.
The above ink processing method is also suitable for web letterpress printing.

from Canvard Packaging