Customize Wholesale Standard Size Aluminum Foil Capsules Pvc Heat Shrink Capsules For Champagne Wine Bottles

Precautions in the production process

1. Raw material selection
• Safety: rubber caps directly or indirectly contact the contents of the product, so it is necessary to choose raw materials that meet the relevant safety standards such as food-grade, pharmaceutical grade. For example, rubber caps used for food packaging can not contain heavy metals (such as lead, mercury, etc.) and chemical substances (such as benzene) that are harmful to the human body.
• Quality stability: the quality of raw materials should be stable to ensure that the performance of rubber caps is consistent. Different batches of raw materials should not have too much difference in physical properties (e.g. elasticity, hardness) and chemical properties (e.g. corrosion resistance, aging resistance), or else the quality of rubber caps will be affected.
• Compatibility: It is necessary to consider the compatibility of the raw materials with the packaged products. If it is packaging alcoholic products, the rubber cap material should not have chemical reaction with the wine, which will lead to the degradation of the wine or the deterioration of the rubber cap; for the packaging of drugs, the rubber cap material should be subjected to strict compatibility test to prevent the interaction between the drugs and the rubber cap.
2. Production process control
• Dimensional accuracy: The dimensional accuracy of the caps is crucial. The production process should strictly control the mold size and molding process to ensure that the cap can be accurately adapted to the container. If a cap is too large or too small, it may not seal properly or may be difficult to install. For example, in the production of red wine caps, its inner diameter should be precisely matched with the outer diameter of the bottle mouth, and the error is generally controlled within a very small range.
• Sealing performance: sealing is one of the important functions of the cap, the production process should pay attention to the molding process of the edge of the cap. For all-inclusive caps, the edges should be smooth and flexible enough to closely fit the mouth of the container. The sealing performance can be improved by optimizing the process of heat sealing and pressing.
• Printing quality: If the rubber caps need to be printed with patterns, text and other logos, pay attention to the control of the printing process. Use high quality ink and printing equipment to ensure that the printed content is clear, accurate and durable. Pay attention to the drying speed and adhesion of the ink during the printing process to prevent the ink from falling off or blurring.

Second, the precautions in the storage process

1. Environmental conditions
• Temperature: The adhesive caps should be stored in a suitable temperature environment. Generally speaking, avoid prolonged exposure to high temperature environment, because high temperature may lead to aging and deformation of rubber cap material. For example, plastic caps may soften at high temperatures and lose their original shape and sealing properties; at the same time, storage at too low a temperature should also be prevented to avoid caps becoming brittle and prone to rupture. The ideal storage temperature is usually between 15 - 25 degrees Celsius.
• Humidity: Humidity also has an effect on cap storage. High humidity environments may cause caps to absorb moisture, resulting in mold or degradation of material properties. In particular, paper caps or caps with paper components are more susceptible to the effects of humidity. The relative humidity of the storage environment is best controlled at 40% - 60%.
• Light: Rubber caps should be protected from prolonged exposure to strong light, especially ultraviolet light. Ultraviolet rays can cause photochemical reactions in the cap material, leading to color fading and material aging. For example, colored caps will fade in color and the strength of the material will be reduced when exposed to direct sunlight for a long period of time.
2. Placement
• Neatly arranged: caps should be neatly arranged in storage to avoid mutual extrusion. For caps with shape requirements, such as special shapes or caps with three-dimensional decorations, squeezing may lead to deformation and affect their use. Layers and compartments can be used for storage.
• Avoid heavy pressure: Don't stack heavy objects on the caps. Heavy pressure may make the cap deformed, for the internal liner or special structure of the cap, heavy pressure may also damage its internal structure, reduce the sealing performance.