Monthly Archives - April 2019

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 filling process

Plastic cosmetic tube filling process

General working principle: the neatly placed tube to be filled is automatically inserted into the positioning mold by the automatic feeding device from the large-capacity tube silo, and then the positioning mold rotates with the turntable and stays in different positions. On the workstation. Put the paste to be filled into the closable barrel, and accurately and automatically inject it through the plunger type quantitative filling valve directly connected to the barrel, intermittently staying in the tube on the filling station, the large plate Continue to rotate, and the tubes that have been filled with the material are quickly brought to different sealing stations, and the robots of each station immediately seal the tubes. Different filling capacities can be obtained by adjusting the capacity adjustment table. By replacing different manipulators, the two folded sides of the metal pipe such as aluminum pipe, three-folded side, saddle-shaped folded edge and the like can be completed, and the plastic pipe is completely plastic. The heat sealing of the composite pipe works. After the end of the seal, the typewriter automatically prints the date of production, production batch number and other words on the tail of the tube.

Matters needing attention: In the entire filling and sealing process, filling and sealing two stations are two very worthy of attention, because if they are not operated properly, it will directly lead to leakage of the product. When filling, the material body must not pollute the tube wall; the pressure on the equipment at the time of sealing and the temperature parameters should be properly selected. In advance, it is necessary to combine the processing window of the tube material to find and set the optimum state. Otherwise, the surface of the tube will be white, wrinkled, and the false seal will leak.

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.

Nozzle, lotion pump, hand washing pump classification

Nozzle, lotion pump, hand washing pump classification

1, Nozzle: bayonet (half bayonet aluminum, full bayonet aluminum), the screw is plastic, but some are covered with a layer of aluminum cover, a layer of anodized aluminum.

2, lotion pump: divided into vacuum and with dip tube.  A large cover of anodized aluminum can also be placed on the large cover and the head cap of the screw.

3, hand washing pump: the caliber is too large, are screw. A large cover of anodized aluminum can also be placed on the large cover and the head cap of the screw. Generally, the steps are threaded, and the steps are left and right knobs.

The type of plastic bottle packaging

The type of plastic bottle packaging

The type of bottle can be divided into
1. Airless bottle: plastic cap, shoulder cover, vacuum pump, piston. Use by air pressure. The nozzles used have a pointed tip (a full-plastic one is covered with an aluminum layer on the outside), and the flat head of the duckbill is covered with a layer of plastic.


2, lotion bottle: overcap, shoulder sleeve, lotion pump, piston. Mostly equipped with a tube inside. Materials are acrylic outside and PP inside. The cover is ABS material normally.

 
3, cream jar: there are cover, inner bowl, outer bottle and liner.
External acrylic, internal PP material. The cover is a layer of PP gasket added to the ABS inside the acrylic.

Plastic bottle cap production process

Plastic bottle cap production process

Plastic bottle caps Generally speaking, the production process is roughly divided into two types: compression molding production process and injection molding production process.

The production process of the compression molding cover: the suction machine sucks the mixed material into the barrel of the compression molding machine, and after heating to the semi-melt plasticizing state in the barrel, quantitatively extrudes into the mold cavity, and the upper and lower molds are closed, Compression molding and cooling set, demoulding, and then through the ring cutting, padding, complete the production of compression molding.

The production process of the injection molding cap: the suction machine sucks the mixed material into the barrel of the injection molding machine, and after heating to the molten plastic state in the barrel, it is injected into the mold cavity, and is cooled and shaped in the cavity, and demoulded, and then After the ring is cut and padded, the production of the injection cap is completed.

The main difference between the two

  1. The injection mold is large in volume, and the replacement of a single cavity is troublesome; each cavity of the compression molding is relatively independent and can be replaced separately.
  2. The compression molding cap has no pouring point, so that it has a more beautiful appearance and better printing effect;
  3. Fill all the cavities once at the time of injection molding, and extrude one cap material at a time. The compression molding extrusion pressure is small, and the pressure required for injection molding is relatively high;
  4. the injection molding cover needs to heat the material to the molten flow state, the temperature is about 220 degrees; the compression molding cover only needs to be heated to about 170 degrees, and the energy consumption of the injection molding cover is higher than that of the compression molding cover;
  1. The compression molding processing temperature is lower, the shrinkage amount is small, and the cover size is more accurate.

Plastic caps material is PP and PE normally

Generally speaking, it is divided into PP and PE.

PP material: It is mostly used for gas beverage bottle cap gasket and bottle cap. It has no heat deformation, high surface strength and good chemical stability. The disadvantage is poor toughness, easy embrittlement under low temperature conditions, and poor oxidation resistance. Wear resistant. This type of bottle cap is mostly used for fruit wine and carbonated beverage bottle cap packaging.
PE materials: mostly used for hot filling caps and aseptic cold-filled caps. This material is non-toxic, has good toughness and impact resistance, is also easy to form film, is resistant to high and low temperature, and has environmental stress cracking performance. Good, the disadvantage is that the molding shrinkage is large and the deformation is severe. Many vegetable oils on the market, sesame oil in glass bottles, etc. are mostly such materials.
Plastic bottle caps are generally divided into gasket type and inner plug type.

The production process is divided into compression molding and injection molding.
The size is mostly: 28mm, 30mm, 38mm, 44mm, 48mmand so on. The number of teeth is divided into: multiples of 9 and 12. The anti-theft ring is divided into 8 buttons and 12 buttons. The structure is mostly: separate connection (also called bridge type) and one-shot type. Uses are generally divided into: gas caps, heat-resistant caps and sterile caps.

Cosmetic foil seals are generally made of tin foil

Cosmetic seals are generally made of tin foil. But most of the metal components of tin foil are actually aluminum, not tin.

The difference between the two is as follows:

1. Color and physical properties are different:

Tin foil is much brighter than aluminum foil, but the ductility of tin is very poor. The aluminum foil material is relatively stiff, good for cutting, and more uses reel type packaging, the price is cheaper, and now it is gradually becoming the mainstream in the market.

2. Different chemical properties:

The foil is very well insulated and the foil has good finish and heat reflectivity. Aluminum foil paper is a paper obtained by bonding aluminum foil backing paper and aluminum foil paste. Soft and easy to change, like paper, and does not rebound after deformation. Can be qualitative, to ensure that the shading, not falling, opaque, no pollution, the price is cheap.

3. The usage is roughly the same:

Tin foil is mainly used in kitchens for cooking, holding food, or for making materials that can be easily cleaned.

Aluminum foil is used to protect and package food, cosmetics and chemicals.

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.

Aluminum foil bags have the following seven advantages for cooked foods

Aluminum foil bags have the following seven advantages for cooked foods:

1. Outer bag protection: The food can be separated from oxygen, water vapor and stain by aluminum foil packaging. Anti-leakage is also a demand element of packaging design. Some packages include a desiccant or a deoxidizer to extend the shelf life. Vacuum packaging or air drawn into the bag is also the primary food packaging method. The preservation of food during the warranty period is novel, and the novelty and safety are the primary functions of the package.

2, physical maintenance: food storage hidden in the bag to prevent extrusion, impact, vibration, temperature difference and other sights.

3, package or load the same package: small items of the same variety into a package is a good way to reduce the volume. Powders and granular objects are required to be packaged.

4, to convey information: packaging and labeling can clearly let people know how to use food, as well as transportation, receiving takeover or disposal.

5. Safety: The packaging bag can carry forward the main effects in transportation. The bag also prevents food from returning to other items. Food packaging also reduces the likelihood of food being stolen. Some food packages are strong and have anti-counterfeiting labels, the effect is to protect the merchant’s benefits from loss. The bag can have a laser logo, special color, SMS authentication and other labels. Other retailers use electronic monitoring labels on food packaging bags to prevent theft. Consumers get their products for degaussing.

6. Marketing: Marketing often uses packaging labels to encourage potential buyers to purchase goods. Packaging design has been a scene of insignificance and change from time to time for decades. Marketing communication and graphic design for use in outer packaging bags highlights the highlights of the product.

7. Convenience: The packaging bag can be easily added, loaded, unloaded, stacked, displayed, sold, opened, reloaded, applied and reapplied. It is very advantageous for food packaging to use aluminum foil materials to protect food and enhance corporate image.

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