The advantages and disadvantages of PETG
What are the advantages of PETG 1. In polymerization process with no chemical composition, in use process will not release the BPA, accord with environmental protection requirement and the FDA. 2. Clear and transparent, light transmittance & gt; 90%, fog degrees & lt; 1%, with crystalline luster. 3. Excellent no notched impact strength unceasingly, has notched impact strength on the basis of different grades in the 650 - 980 j/m between, can be comparable to the impact strength of PC. 4. Excellent chemical resistance, hydrolysis resistance can resist detergent, detergent, hydrocarbon solvents, oils, such as perfume corrosion; Can hydrolysis resistance in hot and humid environment. 5. High temperature resistant low thermal deformation temperature ( 热变形@ 0。 455MPa) According to different grades at 94 ℃ Between 109 ℃. 6. Good liquidity test conditions in 2. 16 KGF pressure, melt temperature of 280 ℃, refers to ( MI) According to different grades in 15. 3 - 29. 5. 7. Easy processing Jin Shi PETG available injection ( injection) , extrusion ( 挤压) , crowded blowing ( 循证医学) , injection blow ( ISBM) A variety of methods, such as processing. In general, use PC can normal production mold, do not need to change the Tritan? To production, production cycle time is very close. 8. Easy to secondary processing can be applied to the secondary processing methods include: UV glue bonding, ultrasonic welding, surface printing, spray painting, surface vacuum plating, etc. 9. Products small residual stress after injection, the residual stress is smaller than a PC, no subsequent annealing treatment. Products in use process due to the less chance of residual stress cracking, so the manufactured product is more durable.
The importance of cosmetic packaging
Cosmetics are necessaries of our life, but its mission to beautiful life makes it a opportunities which contains huge business. The consumer market should not be ignored, as the competition of cosmetics market is more and more fierce, each tube cosmetics businesses is aim for expanding their product sales, which have struggled to the cosmetics packaging and publicity.
Types and characteristics of cosmetic tube
Tubes are divided into single-layer, double-layer and five-layer tubes, which are different in anti-pressure, anti-penetration and hand feeling. For example, five-layer tube is divided into outer layer, inner layer and two bonding layer, and another barrier layer.
Cosmetic tube field, where is the foothold in the future?
Nowadays, in order to meet the changing needs of consumers, whether it is basic skin care brands or efficacy brands, when most of them launch new series of products, they will launch matching products with instruments, aiming to realize the effective incorporation of brands through high-tech instruments.
What standard should cosmetic tube have in respect of oxygen resistance
Cosmetic tube as a container of cosmetics, do not react with the products is the most important function of tube, cosmetic ingredients are easy to cause the reproduction and growth of bacteria, in addition to its own factors, there is a part of the influencing factors because of the impact of oxygen and water; It can be seen that, the most important factor of cosmetic deterioration is oxygen, all cosmetic tube needs to have very good oxygen resistance and gas resistance (prevent the fragrance molecules in the cosmetics and the effective molecules of cosmetics overflow).
How do small and medium-sized enterprises develop product of cosmetics.
1. Don’t make too many products. There are more and more small and medium-sized cosmetic manufacturers. Their products almost cover all kinds of cosmetics. You can see that there are many products, but in fact, they have many disadvantages. The first one is that the sales volume is not necessarily high. The 80/20 law states that 80% of the benefits of any entity come from 20% of the products, that is, 80% of the products can only contribute 20% of the benefits, which is not economic. The second one is that too many product lines are relatively backward in management, and their own strength is insufficient, enterprises can’t grasp the dynamics of consumers' hearts, so there are a lot of products which are not need by consumers. Third, most companies focus on speculation and bargain hunting. Too many product lines limit the development of an enterprise. It is difficult for consumers to form an understanding of the enterprise without a major product. And it is impossible to find the market position without the c