Water-soluble film for packaging of detergent, fertilizers and pesticide

Frequently Asked Questions (FAQs) about Water-Soluble Packaging Film (PVA Film)

What is water-soluble packaging film? What is it mainly made of?

A: It is a type of plastic film that dissolves upon contact with water. It is primarily made from Polyvinyl Alcohol (PVA). PVA is a polymer with excellent water solubility and biodegradable characteristics, making it an ideal material for packaging chemicals, dyestuffs, and agricultural products.

What are the main application areas for this film?

A: Its primary application areas include:

• Agriculture: Used for packaging fertilizers and pesticides to minimize direct contact with toxic substances and reduce packaging residue.

• Washing & Disinfection: Used for packaging detergent, cleanser, disinfector, and laundry powder to simplify operation and improve safety.

• Dyeing Industry: Used for automatic dosing in the dyeing process to avoid dye residue and plastic waste pollution.

• Others: Acts as an excellent container for oil, fat, and other organic solvents.
  
  

What are the core advantages of using water-soluble packaging film?

A: Its main advantages lie in safety, environmental protection, and economic efficiency:

• Safety & Health: Greatly reduces the risk of contact and infection from toxic or irritable materials such as pesticides and chemicals.

• Environmental Protection: It is biodegradable, avoiding the "white pollution" caused by conventional plastics and the contamination of soil and water by chemical residues.

• Economic Efficiency: Replaces fragile glass containers, reducing transport costs and leakage risk; Pre-measured bags increase dosage accuracy and avoid waste; Simplifies operational processes.

How long does it take for the film to dissolve? What is the dissolving temperature?
A: Dissolution speed depends on water temperature, water flow, and film thickness. The product offers various types to suit different temperature requirements:

• Type Z: Dissolves at 5°C and above.

• Type C: Dissolves at 15°C and above.

• Type W: Dissolves at 25°C and above.

• Type M: Dissolves at 45°C and above.

• Type H: Dissolves at 65°C and above.
  Users can select the appropriate type based on their process or application environment (e.g., cold, warm, or hot water).

What are the film specifications? Can they be customized?

A: Yes, the specifications are flexible and customization is available.

• Film Specifications: Thickness: 25 to 80 microns; Width: 200mm to 3000mm; Length: 500m to 1000m per roll.

• Bag Specifications: Common sizes include 200mm×300mm, 300mm×400mm, etc. Other sizes, colors (e.g., natural, white, red), and textures (plain or embossed) can be processed according to clients' demand.

Is this material truly eco-friendly? Does it produce harmful substances after degradation?

A: Yes, PVA film is considered an eco-friendly material. It is water-soluble and biodegradable. After dissolving, PVA will eventually break down into water and carbon dioxide under microbial action, without forming long-term microplastic pollution. It contains no toxic substances itself, and its degradation products are environmentally benign.

Will the packaging bags dissolve on their own during storage and transport in humid weather?

A: No. The water-soluble film requires direct contact with water to begin dissolving. It is not sensitive to atmospheric humidity and is very stable under normal storage conditions (sealed or dry environments), ensuring integrity during storage and transport.

How does this packaging ensure the stability of the internal chemicals (e.g., pesticides)?

A: PVA film has excellent barrier properties against oils, fats, and many organic solvents, effectively protecting the contents. Furthermore, the bags have sufficient strength and seal integrity in their dry state, preventing moisture absorption or leakage of the contents, thereby ensuring the stability and efficacy of the chemicals throughout their shelf life.

Are other colors available besides transparent film?

A: Yes. Besides the natural color (transparent/translucent), various colors such as white, red, yellow, and blue are available. Multi-colors and printing are available upon customer request, facilitating product classification, branding, or differentiation between various formulations.

What should users pay attention to when using water-soluble packaging bags?

A: Key considerations include:

• Avoid Moisture: Store in a dry environment to prevent the bags from accidentally absorbing moisture, sticking together, or dissolving.

• Select the Correct Type: Always choose the film type corresponding to your application's water temperature to ensure complete and rapid dissolution when needed.

• Direct Use: Typically, the entire bag is directly added to water during use; there is no need to tear it open.