1. Is the material "compatible"? Packaging materials th […]
1. Is the material "compatible"?
Packaging materials that are in direct contact with cosmetics should be safe, must not chemically react with cosmetics, and must not migrate or release toxic and hazardous substances that cause harm to the human body.
For example, heavy metals in metal packaging, plasticizers in plastic packaging bags, and bisphenol A and its derivatives, dissolved in the cosmetics directly in contact with it, are a threat to the quality of cosmetics and the human body.
Therefore, the packaging must be tested for compatibility to avoid unnecessary losses.
2. Is the print quality passed?
Cosmetic packaging requires exquisite printing and good visual aesthetics, so its printing quality inspection is particularly important.
At present, the routine items of cosmetic packaging printing quality inspection mainly include the abrasion resistance (scratch resistance) of the printing ink layer, the adhesion fastness of the ink and the color discrimination detection. In the process of detection, the phenomenon that the packaged product does not appear to be inked or deinked is Qualified products.
3. Is the design reasonable?
For enterprises, while considering the cost, they should consider the market expectations, and control the packaging design, from container form to label copy, from style positioning to transportation risk, from insourcing to outsourcing, etc.
Especially for the market characteristics and potential of the product, the basic situation of the consumer group, such as: the age of the consumer group, economic income, cultural quality and so on. Good products do not have a suitable appearance, and Zui ultimately damages the overall image of the product.
4. Is the capacity standard?
There are many types of skin care products, and the process is complicated. Sometimes there is a gap between the container capacity and the design standard. Therefore, before the container is produced, the characteristics of the material should be fully considered and controlled in a targeted manner. Whether the special specifications are complete, whether the shape is beautiful, and whether the vision is comfortable.
When many companies negotiate business, they often only know how to produce according to the sample. In fact, this is incomplete. Because the materials are different, the same containers have different net contents.
5. Is the packaging temperature resistant?
Some cosmetic inner packagings are made of composite film, which uses adhesive to bond films of different materials together, while different materials have different shrinkage rates, so when the temperature changes (whether high temperature or low temperature), compound The film bag will have delamination and wrinkles on the surface. Therefore, the temperature resistance of the flexible packaging must be tested.
6. Is the quality of heat sealing edge resistant?
Heat seal strength is one of the important indicators to measure the quality of packaging. Flexible packaging requires a certain degree of strength and sealing of the seal, can withstand the pressure of a certain weight of filler, to ensure that the package does not crack and leak during transportation.
(1) Check the tightness.
Use an ultrasonic seal tester or vacuum to observe the tightness of the heat seal of the flexible bag.
(2) Check the heat seal strength.
When testing the heat seal strength, the samples of the same width should be cut in the vertical direction of the heat-sealed portion of the flexible packaging bag, and then the two ends of the strip sample should be fixed on the tensioner and sent to the fixture for stretching to calculate the heat of destruction. The zui value of the seal.
It should be noted that in addition to the tensile strength of the blank packaging material, the effect of the contents on the heat-sealed portion must also be taken into account.
(3) Test the compressive strength.
The compressive strength of the flexible package can be tested using a press, and the sample containing the contents is placed on the sample stage, and the pressure is slowly applied to the desired pressure for 15 seconds, and if no edge cracking occurs, it is acceptable. As for the amount of pressure applied, depending on the situation, different terminal companies and different products may have different requirements.
6. Is the package tearing smooth?
Most of the mask bags have wedge-shaped tear-offs. When the consumer opens the product, the opening process must be guaranteed to be smooth.
It should be noted that the clamping force provided to the material must be sufficiently large during the tear test so that no "slip" of the material occurs during the test. However, when the consumer actually opens the flexible packaging bag, if the force is not well matched, the "slip" phenomenon may occur due to insufficient grip strength, and the difficulty of opening may occur from time to time.
Therefore, in packaging design, packaging designers must consider these properties of flexible packaging materials to find a good solution.
7. Is the copywriting standardized?
The country's label management of cosmetics is very strict, and must be carried out in strict accordance with the standards, especially the characteristic products. Some components and their indicators can not have half mistakes and discrepancies. Otherwise, even the best packaging materials can not be used. Also, in the efficacy of the product, we must carefully scrutinize, carefully review, avoid false content, avoid banned words, avoid consumer ambiguity.
8. Is the proportion of defective products exceeding the standard?
Cosmetic packaging materials, especially for outsourcing materials, are produced by hand, such as cartons, handbags, etc., due to the low degree of automation, inevitably defective or defective products.
Some glass bottles and hoses produced by some machines may have such problems in terms of color difference, missing printing, and shape. Therefore, these problems must be considered when purchasing. If the ratio of qualified products to defective products does not exceed the basic standard when the package material is inspected, the purchase of the packaging materials is successful, but when ordering the packaging materials, the quantity should be appropriately increased to ensure sufficient use and there is room for selection.