Savvy cosmetics manufacturers know that in addition to raw materials, cosmetic packaging is equally important. Packaging materials are not only containers, but also involve product publicity and product quality. Therefore, manufacturers must attach great importance to the selection of packaging materials. What problems should be paid attention to when purchasing cosmetic packaging materials? Let’s see. 1. Is the material “compatible”? According to the 2015 Edition of The Technical Specification for Cosmetic Safety, packaging materials that come into direct contact with cosmetics should be safe and should not have chemical reactions with cosmetics, and should not remove or release toxic and harmful substances that harm human body. For example, heavy metals in metal packaging, plasticizers in plastic packaging, and bisphenolA and its derivatives are dissolved in cosmetics in direct contact with it, which is A threat to the quality of cosmetics and the human body. Therefore, the packaging must be tested for compatibility, so as not to cause unnecessary loss. 2. Is the printing quality acceptable? Cosmetics packaging requires fine printing, with a good visual aesthetic, so its printing quality detection is particularly important. At present, routine testing items of cosmetic packaging printing quality mainly include the abrasion resistance (anti-scratch performance) of printing ink layer, ink fastness and color discrimination detection. During the testing process, the packaging products are qualified if there is no ink dropping, deinking and other phenomena. 3. Is the design reasonable? For enterprises, while considering the cost, they should also consider the market expectation, and control the packaging material design pass, from container form to label copy, from style positioning to transportation risk, from in-sourcing to outsourcing, and so on.
In particular, it aims at the market characteristics and potential of the product and the basic situation of the consumer group, such as the age, economic income, cultural quality and other aspects of the consumer group. Good products do not have a suitable appearance, or ultimately damage the overall image of the product.
4. Is the capacity standard?
There are many kinds of packaging materials for skin care products, and the process is relatively complex. Sometimes, it is unavoidable that there is a gap between the container capacity and the design standard. Therefore, before container production, the characteristics of the material body should be fully considered and well controlled in a targeted way. Whether the special specifications are complete, whether the appearance is beautiful, whether the vision is comfortable.
Many enterprises only know to produce according to the sample when they negotiate business. In fact, this is incomplete, because the net content of the same container is different with different materials.
5. Does the packing stand temperature?
Some cosmetic inner packaging is made of composite film, using adhesive to bind the film of different materials together, and different materials have different shrinkage rate, so when the temperature changes (whether high temperature or low temperature), composite film bag will appear stratification, surface wrinkle and other phenomena. Therefore, must carry on the temperature resistance test to the flexible package.
6. Is the quality of hot sealing edge resistant?
Heat seal strength is one of the important indexes to measure packaging quality. Flexible packaging requires a certain strength and tightness of the seal, can bear a certain weight of filler pressure, to ensure that the packaging in the process of transportation does not crack leakage.
(1) Check the tightness.
Observe the tightness of the hot sealing side of flexible packaging bags by using ultrasonic sealing tester or by vacuuming.
(2) Test the heat seal strength.
In the test of heat sealing strength, samples of the same width should be cut in the heat sealing part of flexible packaging bag in a vertical direction, and then both ends of the strip sample should be fixed on the puller and sent to the fixture for stretching, and the maximum strength value of the heat sealing part should be calculated.
It should be noted that in addition to the tensile strength of the blank packaging material, the effect of the contents on the heat seal site must also be taken into account.
(3) Test the compressive strength.
The compressive strength of the flexible package can be tested by using a press. The sample containing the contents is placed on the sample table and pressed slowly to the required pressure for 15 seconds. If the sealing edge is not broken, it is considered qualified. As for the amount of pressure depends on the situation, different terminal enterprises and different products may have different requirements. 6. Is the packing tearing smooth? Most of the packing bags of the mask have wedges that are easy to tear. When consumers open the product, they must ensure that the opening process is smooth. It should be noted that during the tear test, the clamping force provided to the material must be large enough to prevent the material from “slipping” during the test. However, when consumers actually open flexible packaging bags, if the force is not good, in the case of the grip strength is not large enough due to “slip” phenomenon, resulting in the difficulty of opening from time to time. Therefore, in the packaging design, packaging designers must take these properties of flexible packaging materials into comprehensive consideration to find the best solution.
7. Is the copy standard? The country is very strict to the label management of cosmetics, must strictly in accordance with the standard implementation, especially characteristic products, some ingredients and indicators can not have any mistakes and discrepancy, otherwise, no matter how good packaging materials can not be used. In addition, in the efficacy of the product, must carefully deliberate, carefully review, avoid false content, avoid prohibited words, avoid consumer ambiguity. 8. Is the proportion of defective products exceeding the standard? Cosmetic packaging materials, especially outsourcing materials, are manually produced, such as cartons, handbags, etc., due to the low degree of automation, there are inevitably defective products or defective products. Some machine produces glass bottle, hose to wait in the respect such as chromatic aberration, omission, form, also can appear such and so on problem, accordingly, these problems should consider when the choose and buy. If the ratio of qualified and defective products does not exceed the basic standard, then the purchase of packaging materials is successful. However, when ordering packaging materials, the quantity should be increased appropriately to ensure that it is sufficient and there is room for selection.
Ningbo Longway Packaging Co., LTD. Is a cosmetic containers manufacturer. We provide cosmetic packaging design services to major cosmetic companies. Welcome your consultation
longway packaging website: https://www.plasticspray.com/