Cosmetics plastic bottle encyclopedia

Cosmetic plastic bottles are mainly made of polyethylene or polypropylene and other materials and added with a variety of organic solvents. Cosmetic plastic bottles are widely used in polyester (PET), polyethylene (PE), polypropylene (PP) as raw materials, adding the corresponding organic solvents, after high temperature heating, through the plastic mold through blowing, extrusion, or injection molding plastic containers.

Mainly used for facial cleanser, emulsion, cosmetics, skin care products, food, shampoo, cream and other liquid or solid disposable plastic packaging containers. Cosmetic plastic bottle is not easy to break, low cost, high transparency, food grade raw materials and so on.

At present, the world economy is changing, and the domestic industrial structure is also in the stage of constant upgrading. In the current process of industrial upgrading, some enterprises with low added value are confronted with a variety of business difficulties and unprecedented challenges. Today, plastic cosmetic bottle manufacturer will talk about cosmetic plastic bottle enterprises in the storm of transformation.

For cosmetic plastic bottles, there are various problems at present. Let's take a closer look at that. First of all, cosmetic plastic bottle is a labor-intensive industry, the current labor costs are rising, for cosmetic plastic bottle enterprises, labor costs have become a huge pressure. Secondly, the price of raw materials continues to rise, due to the rise of various costs in the market, the rise of raw materials is obvious, which gives cosmetic plastic bottle enterprises caused another layer of pressure. Again, with the European debt crisis and the weakness of the world economy, the foreign trade orders of cosmetic plastic bottles are gradually declining, and many foreign trade enterprises have turned to the domestic market, which has brought more pressure to the already fierce competition in the domestic cosmetic plastic bottle market, the price war is becoming more and more severe, and the profit of enterprises is getting lower and lower.

For cosmetic plastic bottle manufacturers, under the current circumstances of various pressures, they should take the road of industrial upgrading, take the road of innovation in the field of plastic packaging, and strive to improve the added value of cosmetic plastic bottles. From cosmetic plastic bottle design, production and sales of each link of continuous improvement.

Cosmetic plastic bottle is the use of polyester (PET), polyethylene (PE), polypropylene (PP) as raw materials, add the corresponding organic solvents, after high temperature heating, through the plastic mold through blowing, extrusion blowing, or injection molding plastic container. Cosmetic plastic bottle is not easy to break, low cost, high transparency, food grade raw materials and so on.

Special attention should be paid to the use of plastic products, do not contact vinegar, detergent, etc., to avoid direct sunlight, high temperature, etc., to avoid chemical reaction. Additional, when you are buying plastic tableware, ought to choose a commodity to contain PE(polyethylene) or PP(polypropylene) mark, adornment design is little, colorless and tasteless, the plastic products with smooth and clean surface.

Cosmetic plastic bottles are easy to carry, not afraid of falling, acid and alkali resistant, easy to produce, but also conducive to recycling.

A: What's wrong with the bottle?

(1) In the design of extruded cosmetic plastic bottles, if the material is high-density polyethylene or polypropylene, the cross section of the cosmetic plastic bottle should be rectangular or oval. For low-density polyethylene or other flexible cosmetic plastic bottles, the cross section should be round. This makes it easy for the contents to be extruded from the plastic bottle of cosmetics. The plastic parts used with cosmetic plastic bottle mouth are mainly bottle cap and sealant. The design of cosmetic plastic bottle mouth should focus on how to make the cosmetic plastic bottle mouth can better match the cap and seal. The bottom of cosmetic plastic bottle is the weak part of the mechanical properties of cosmetic plastic bottle. Therefore, the bottom of cosmetic plastic bottles is generally designed to be concave; Cosmetic plastic bottle corner, and concave place, are made larger arc excessive. In order to facilitate the stacking of cosmetic plastic bottles and increase the stacking stability of cosmetic plastic bottles, internal grooves should be designed at the bottom of cosmetic plastic bottles.

(2) When the surface of cosmetic plastic bottles is labeled, the surface of the label should be smooth. A "frame" can be designed on the surface of cosmetic plastic bottle, so that the label is accurately positioned and does not move. In blow molding, the first contact parts of the billet blowing, always tend to the first hardening parts. So the wall thickness in that area is also larger. The edge and corner parts are the final contact parts of the billet blowing, and the wall thickness of these parts is small. Therefore, the edges and corners of cosmetic plastic bottles should be designed into rounded corners. Change the surface shape of cosmetic plastic bottles, such as cosmetic plastic bottles in the middle of the relatively thin, increase the surface of cosmetic plastic bottles to the circumference of the groove or convex bars, can improve the stiffness and bending resistance of cosmetic plastic bottles. Longitudinal grooves or reinforcing bars can eliminate the deviation, sagging or deformation of cosmetic plastic bottles under long-term load.

(3) the printing surface of cosmetic plastic bottles is the most concentrated part of consumers' attention. The printing surface should be smooth and continuous; If cosmetic plastic bottles contain handles, grooves, reinforcing bars and other structures, the design should be careful not to cause inconvenience to printing operations. Oval cosmetic plastic bottle, stiffness is also higher, but the manufacturing cost of the mold is higher. Therefore, in order to ensure the stiffness of cosmetic plastic bottles, in addition to choosing materials with high stiffness, but also through the cosmetic plastic bottle shape design, enhance the stiffness and load resistance strength of cosmetic plastic bottles.

(4) Because most plastics are sensitive to dents, cosmetic plastic bottles are prone to cracks and cracking at the sharp corners, the root of the mouth thread, the neck and other parts, so these parts should be designed into rounded corners. For rectangular cosmetic plastic bottles at the transfer, need to support most of the load of cosmetic plastic bottles, so local increase of the wall thickness, but also conducive to improve the stiffness and load strength of cosmetic plastic bottles.

Cosmetic plastic bottle is filled by a gun mold after a certain temperature and pressure blow molding, can be formed from the preform of the bottle processing, can also be directly formed by injection molding blow molding a machine processing.

We all know that cosmetic plastic bottles can be recycled, but for what purpose? This we are not very clear, cosmetic plastic bottles are recycled after the use of a lot of value, among them, cosmetic plastic bottles can also be spun into yarn, into clothing fabric, is not feel very magical?

Plastic is one of mankind's greatest inventions, but it's also a troublesome source of waste and a hazard to the environment because it's hard to break down. In fact, waste plastic is not garbage. It can be turned into treasure through environmental protection technology treatment. The main materials of cosmetic plastic bottles are generally PP(polypropylene) and PET(polyethylene terephthalate), and the latter is one of the important raw materials in the production of clothing fabrics.

According to the Beijing Textile Research Institute, the clothes are very cool to wear because the fabric "absorbs moisture and dries quickly," making it environmentally friendly and comfortable for consumers to wear. Our corporate philosophy is green, not only using renewable resources as raw materials, but also in the production process to create a zero-emission standard." "The traditional way of producing polyester in the world is to refine it by chemical industry," Mao said. "But through technological innovation, the quality of our products has reached the standard of original products."