Various inspections of cosmetic glass bottles
Cosmetic glass bottles
The production and testing of
are very strict. This is not only about the prospects of an enterprise, but also a responsibility to the patients. Therefore, cosmetic glass bottles have a complete testing mechanism and process:
, physical and chemical properties
Physical and chemical properties are important quality indicators and test items for cosmetic oral liquid bottles. They are the reflection and manifestation of the internal quality of the product and directly affect the quality of the drug. The items that belong to the physical and chemical performance testing include: water resistance, internal stress, internal stress resistance, thermal shock resistance, freezing resistance, breaking force, acid resistance and resistance, etc.
①Water resistance: water resistance refers to the chemical stability of cosmetic oral liquid bottles. Because cosmetic oral liquid bottles are directly in contact with the packaging containers of medicines, during the shelf life of the medicines, changes in the chemical properties of the medicines should not cause deterioration or failure of the medicines. Therefore, the quality of chemical stability is directly related to the quality of medicines.
The water resistance test is divided into the particle method and the container method. The test principle is to use the amount of acid solution to neutralize the content of the glass container on the surface or inside. The particle method is the detection of the chemical properties of glass materials. The detection method standards are GB.-'Test and Diversity of Water Resistance of Glass Particles at ℃The container method is the detection of the chemical properties of the inner surface of glass. The standard of the detection method is GB.- 'Test Method and Classification of Water Resistance of Cosmetic Glass Containers
In addition, in order to be in line with my country's standards, the draft framework standard 'Glass Products and Glass Containers for Water Erosion Resistance Determination and Classification by Flame Spectrometry' has been formulated. This standard can quantitatively determine the water-resistant release substance and release amount of the glass surface.
②Internal stress: The internal stress is the annealing quality or annealing characteristics of the glass. Glass containers with poor annealing quality are prone to break or burst during use, which affects the packaging and administration of medicines. The commonly used standard for detecting internal stress is GB-'Method for Testing the Internal Stress of Cosmetic Glass Containers'. The test principle is to determine the internal stress in the glass container with different wavelengths of light path. At present, the commonly used LRR-A digital display quantitative stress measurement instrument.
③ Internal pressure resistance: Internal pressure is a measure of the comprehensive degree of glass containers. The internal structure of the glass, unevenness of the glass wall thickness and surface appearance defects will all affect the strength of the glass. The test method standard is GBT-'Glass Bottles and Jars Resistance Test Method
④ Thermal shock resistance: Thermal shock resistance is to test the ability of glass containers to resist temperature changes, which is generally expressed by the difference in heat resistance temperature. The test method standard is GB-'Test Method for Thermal Shock Resistance and Thermal Shock Durability of Glass Containers'. The commonly used testing instrument is a digital display self-controlling temperature and heat rapid change meter.
⑤ Freezing resistance: Freezing resistance is a test item to measure the low-temperature performance of glass. It is mainly used for the inspection of lyophilized glass bottles. The testing instrument is: a freezer below -℃.
⑥ Breaking force: Breaking force is an item to detect easy-to-break performance, and it is also an important index to measure performance. The commonly used testing instrument is: XLY-digital display force meter.
⑦Acid resistance: Acid resistance is an item to measure the chemical stability of glass. The detection method is GB-'Glass resistance to hydrochloric acid corrosion at ℃ by flame emission or atomic absorption spectrometryImportant test methods and classification of corrosivityThe main testing instruments are: flame photometer, atomic absorption spectrometer and routine laboratory instruments.
, size
Specifications and sizes are the main molding process quality of cosmetic oral liquid bottles. Consistency and good and stable specifications and sizes are the basis for the production of pharmaceutical packaging, and have a great impact on the filling, sealing and storage of drugs.
Geometric size: The geometric size of each part of the bottle mouth and bottle body is generally detected by measuring tools such as digital display electronic calipers, vernier calipers or height gauges.
Bottle wall, bottle bottom, bottle mouth thickness: Commonly used measuring instruments are: digital display electronic bottle bottom thickness, wall thickness measuring instrument, digital display electronic bottle mouth edge thickness measuring instrument.
Vertical axis deviation: a test item for the verticality of the bottle. The test method standard is GB-'Glass Container-Glass Bottle Vertical Axis Deviation Test Method
Straightness: Straightness is a test item for the degree of bending of the glass tube. Commonly used testing instruments are: LSR-digital glass tube straightness meter.
Weight and volume: The weight and container test is to measure the weight and volume of the bottle by weighing method and titration method.
, appearance quality
Appearance quality is an item for detecting various surface defects of glass containers, mainly including: stones, bubbles, streaks, bubble lines, cracks, seam lines, etc. The inspection of appearance quality items generally adopts visual inspection or magnifying glass with scale. .