With the development of China's economy and the continuous improvement of public consumption awareness, the market capacity of wet wipes is growing rapidly. Wet wipes, with their softness, comfort, convenience, safety, and non-irritating properties, are widely used in people's lives, and the quality control requirements for them are becoming increasingly standardized. Besides the quality and safety of the wet wipes themselves, the quality and safety of the packaging and its testing are also attracting increasing attention from wet wipe manufacturers. The airtightness of the packaging is also closely related to the product's shelf life. Good sealing performance effectively isolates air and moisture, slowing down the oxidation and deterioration process of the ingredients in the wet wipes, thereby extending the shelf life. For manufacturers, this means a longer circulation time in the market, reducing waste caused by expiration; for consumers, it ensures that the purchased product is still in optimal condition when used, protecting consumer rights .
Packaging Material Factors
Membrane quality: The thickness, strength, and bonding firmness of composite films used for packaging (usually plastic film and aluminum foil, etc.) directly affect their pressure resistance and sealing performance.
PE (polyethylene): Low cost and good flexibility, but weak barrier properties, suitable for short-term storage of ordinary wet wipes.
PET (polyester): High transparency, high barrier properties, and puncture resistance; commonly used in high-end wet wipes or alcohol-containing products.
Aluminum foil composite film: Excellent moisture-proof and anti-oxidation properties, suitable for wet wipes containing natural ingredients (such as plant extracts).
Corona treatment : The uniformity of corona treatment on the inner layer of the packaging is crucial. Uneven or insufficient treatment will seriously affect the heat sealing effect.
Equipment and Process Factors
Heat sealing parameters: Improper settings of heat sealing temperature, pressure and time (too high/too low/unstable) can lead to overheating of the seal or failure to seal properly.
Heat sealing performance: The edges are fused together at high temperature, resulting in a strong seal. Suitable for wet wipes containing alcohol or preservatives.
Embossed seal: It uses a textured interlocking pattern, which makes it easy to open and close, but the sealing performance is relatively weak. It is suitable for daily cleaning wipes.
Equipment precision: Problems such as worn sealing and cutting blades, unstable machine tension, and inaccurate positioning can cause uneven cuts and material misalignment, affecting the seal.
Liquid distribution: Uneven liquid distribution (too much or too little water) may affect the cleanliness of the sealing area, indirectly affecting the seal.
Double sealing: outer heat seal + inner easy-tear opening, reducing the risk of liquid leakage.
Anti-overflow valve: High-end wet wipes use a one-way valve design, which allows only the wet wipes to be pulled out, avoiding backflow and contamination.
Environmental and Operational Factors
Environmental humidity and cleanliness: Excessive dust and moisture in the production workshop can adhere to the sealing area, resulting in poor sealing.
Oxygen barrier: Prevents the natural ingredients in the wipes (such as aloe vera and vitamin E) from oxidizing and becoming ineffective.
Moisture barrier: To maintain stable moisture content in the wipes, it is recommended to choose a moisture permeability of ≤1g/(m²·material 24 hours).
Operator skills: Improper operation or failure to strictly follow the process flow can also affect the quality of the final product.
Packaging Design Factors
Sealing area design: The width and structural design of the sealing area also affect the stability of the sealing effect.
Qianzhao Company's wet wipe packaging film and wet wipe bags feature a multi-layered composite structure that achieves a strong seal and moisture retention, effectively isolating bacteria and preventing leakage. Made with food-grade safe materials, they are non-toxic, environmentally friendly, and meet hygiene standards. Their superior sealing performance effectively locks in moisture and isolates bacteria, extending the shelf life of the wet wipes. The innovative easy-tear design combined with the multi-layered sealing structure ensures convenient and smooth extraction, and remains leak-proof and moisture-proof even after repeated use. The film material has uniform thickness and is compatible with various wet wipe packaging machines. The bag is lightweight and portable, suitable for both home and commercial use. High cost-performance and stable performance make them an excellent choice for enhancing product quality and user experience! The innovative easy-tear line design ensures smooth and unobstructed extraction, maintaining a tight seal even after repeated opening and closing.
