Cosmetics packaging detection project and inspection method

Cosmetics packaging detection project and inspection method

As a fashion consumer product, cosmetics must not only have exquisite packaging, but also ensure that the product has stable and reliable quality during the shelf period. Under the comprehensive influence of factors such as production, transportation, use, and cost, cosmetics packaging is gradually using plastic soft packaging instead of traditional glass packaging. However, some performance of plastic soft packaging is not as good as glass packaging. Therefore, to ensure the safety and convenience of the use of cosmetics, not only should we consider the preservation factors of cosmetics, but also the influencing factors of the sales of packaging packaging. The protection effect and convenience of packaging.

1. The preservation factors and related testing of cosmetics

The primary function of cosmetics packaging is to protect the content. The ingredients of cosmetics are added to the substances required for microorganisms and breeding, such as glycerin, protein, etc., and moisture and oxygen are factor affecting microbial growth. Most cosmetics contain oil ingredients. The unsaturated keys in oils are prone to oxidation and causing deterioration (acid failure), and this oxidation is a chain reaction. As long as a small part starts to oxidize Oxs, acids, aldehydes, etc. are irritating to the skin, and have a sour odor. The preservation of aromatic gases is the focus of cosmetics packaging. For cosmetics, it is of great significance to prevent odor loss.

It can be seen that anti -corrosion, antioxidant, and preventing odor from dispersing are the focus of cosmetics preservation. The following detection of cosmetics packaging is required: the speed of gas penetration packaging materials, the gas content inside the packaging, and whether the packaging is intact, that is, the blockability of the packaging material, the packaging of the packaging material, the packaging of the packaging material Analysis of top -empty gas inside the object and the sealing of the packaging material.

1.1 resistance

The quality of obstruction can directly affect the quality of the product during the shelf period, and it is also an important indicator of the shelf life of the product. The blocking performance of the packaging is one of the important testing items for cosmetics packaging, including the oxygen permeability, moisture permeability and organic gas through the material.

The detection of oxygen permeability is mainly used for the measurement of the oxygen of the film, composite film, cosmetics packaging bag, or the overall packaging of the bottle for cosmetics packaging. At present, the two methods for detection of oxygen permeability-pressure difference and equal pressure can detect the oxygen permeability of the film and the overall oxygen permeability of the packaging material, but the detection advantages are different. The pressure difference method has no requirements for testing gas and can be used to detect the transmission rate of any gas, but it is still in its infancy in the inspection of packaging containers. The film detection technology and container detection technology of the other pressure are quite mature.

The detection of moisture permeability is mainly used for the determination of the water vapor of the packaging of cosmetics packaging thin film materials and bottles, bags, cans and other packaging materials. Through the measurement of the water steam through the rate, control and adjust the production technical indicators of packaging materials to meet the different needs of product applications. At present, the weight method and sensor method can be used to detect the humidity rate of the film and the moisture permeability of the packaging objects. However, considering the test efficiency, the application development of the sensor method in packaging detection must be faster.

The performance testing of incense is very important for cosmetics packaging, because the loss or change of fragrance will directly affect the sales of the product.

1.2 Sealing

The sealing of the packaging mainly refers to whether there is a leak point in the package. The leak is a small gap or entering the packaging through the ingredients of the material cracks, micropores, or two materials. The probability of leakage at the heat seal site and the bottle mouth of the container in the packaging bag is higher. It is necessary to strictly adjust the process according to the detection data. Commonly used detection methods: positive pressure and negative pressure method. Among them, the application of the positive pressure method should be particularly valued, because the use of this detection method can not only detect the sealing of common packaging parts, but also use attachments to expand the detection object, detect hose, spray spray head, bottle cap, open packaging and other samples and other samples such as samples and other samples Sealing.

1.3 Top empty gas analysis

There will be a small amount of Liqi residue in the packaging when the filling is completed, and the gas components inside the packaging will be difficult to use other technical means to control and change it before opening the packaging product. The material can only cause obstacles to the seepage of gas into and exudate the packaging material, and cannot eliminate gases such as existing oxygen inside the packaging (excluding the condition of adding oxygen removal technology in the packaging). If the content of the residual gas exceeds the highest concentration requirements for product preservation, no matter how good the high -resistance materials and more comprehensive seal packaging forms are used, the shelf life requirements of the product cannot be met. Therefore, we need to detect the gas composition remaining in cosmetics packaging and adjust the packaging process based on this.

2. Sales factors and appearance testing of the sales of chemical packaging

The beauty of cosmetics packaging can directly affect consumers' recognition of brand and product quality. Therefore convenient. From the perspective of consumers, the printing and opening of the outside of the packaging, the surface touch, printing effect, and appearance design of the packaging materials have become a warranty factors for choosing products. In addition to the design of these factors, these factors are closely related to the performance testing of the packaging materials.

2.1 Print quality

The detection of printing camps is more important. At present, the conventional project of cosmetics packaging printing quality test is printed ink layer abrasion resistance (scratch resistance), ink attachment fastness detection, and color discernic.

2.2 Non -gum label detection

The application of non -drying labels in cosmetics packaging is widely used. The testing items are mainly aimed at the adhesive performance test of non -dry glue labels (non -dry gel or pressure -sensitive gum). (Dipping power) Three indicators.

Poor sticky test, adopts a slope rolling ball, and tests the initial stickiness of the sample by the adhesive tape with the adhesion of the glue belt between the adhesive surface between the steel ball and the pressure -sensitive tape. The maximum steel ball numbers are used to characterize the initial sticky performance of no thousand glue. Testing the test board with adhesive tape with adhesive testes is hung vertically on the test rack. Time to characterize the sticky performance of non -gum label. The peeling strength is an important indicator for measuring the adhesion of non -drying label. Generally, the detection of this indicator is performed by an electronic tensile test machine or an electronic chop test machine.

2.3 Easy to open

Bottle packaging is a form of packaging in the field of cosmetics packaging. Its bottle cap is locked and turned on the torque value, which is one of the process parameters of the production unit offline or online key control. Whether its torque value is appropriate, it has a great impact on the intermediate transportation of the product and the final consumption. The opening of the bottle cap and the lock force can be detected by the torque meter. At the same time, the opening and locking force detection of the bottle cap should also be associated with the seal detection of the packaging object.

The packaging bag is also widely used in the field of cosmetics, especially for small -capacity packaging. It is easy to open. It should be noted that the clamping force provided by the material during the tear test is large enough, so that the "slip" phenomenon of materials will not occur in the test. The frictional force is not well coordinated with the torn power of the material. It is also common for the difficulty of opening the slide when the grip is not strong enough. When the packaging is designed, the two indicators of the packaging material need to be comprehensively considered and perform simulation tests under various grip conditions.

3. Summary

In summary, according to the preservation requirements of cosmetics packaging, its performance detection can be divided into two parts: content preservation. The product appearance is two parts. Of course, the basic mechanical indicators of packaging materials must be met. Among them, anti -corrosion, antioxidant and preventing odor from dispersion are the focus of cosmetics preservation, involving the obstacles of materials, the analysis of top -empty gas, and sealing testing; the beauty of the packaging appearance can directly affect the sales of the product. The main influencing factors are the external packaging. Printing, opening sex, surface touch, printing effect, and adhesion performance testing of cosmetics non -drying labels. Understanding these performance indicators of packaging materials and packaging, we can avoid some mistakes when designing cosmetics packaging, while enhancing the availability, protection and aesthetics of packaging design.