1. What is LDPE film?

– LDPE film is made from low-density polyethylene. It is a resin and is preferred for its lightweight, toughness, transparency, and ability to be easily heat-sealed.

– LDPE film finds applications in various industries, such as food packaging, agriculture, healthcare, and construction.

2. What is HDPE film?

– HDPE film is made from high-density polyethylene resin. In its natural state, HDPE typically has a translucent or milky appearance. It is known for its strength, durability, chemical resistance, and good resistance to ultraviolet (UV) radiation, making it ideal for packaging applications.

– Some common uses for HDPE film include garbage bags, agricultural films, industrial liners, and geomembranes.

3. What is CPE film?

CPE films produced by a cast film line have advantages over blown films. Because they are lightweight, durable, and have high barrier properties, CPE film is widely used in the food packaging industry, consumer goods, and surface protection.

4. What is TPE film?

TPE stands for Thermoplastic Elastomer, a material used to make flexible and elastic films that can be melted and reshaped. TPE films are durable and widely used in gloves, packaging, medical devices, consumer goods, and industrial components. They are soft, resistant to tearing and abrasion, and can be engineered to have specific properties such as heat, UV, and chemical resistance.

5. What is PVC film? Does it release chloride gas?

– PVC is a plastic polymer used to make thin films for packaging, signage, medical devices, and construction materials.

– It can release toxic hydrogen chloride gas when exposed to high temperatures. Proper handling and disposal of PVC are important to minimize risks. Recycling and waste management practices are being developed to address environmental and health concerns.

6. What is the difference between EVA and PEVA? Are they eco-friendly, and are they degradable?

EVA is copolymerized by LLDPE (linear low-density polyethylene) and acetic acid (VA). It is light, elastic, and shockproof. EVA is an odorless, soft, and smooth food-grade product with a good drape and a certain degree of flexibility.

– PEVA is a polymer of EVA and PE. PEVA has good softness and a little elasticity.The proportion of EVA and PE materials  can be adjusted, and the effects are different, which can meet different needs. The higher the EVA content, the better and heavier the film. On the contrary, it is harder and lighter.

– EVA/PEVA has common applications in raincoats, Shower curtains, Tablecloths and covers, Packaging, aprons, and more.

– EVA and PEVA are more environmentally friendly than PVC  due to their lower toxicity and lack of chlorine content. However, neither is biodegradable. EVA is terminally degradable under heat, but when mixed with PE, it may reduce the speed of degradation.

7. What materials can LINYECO use to make raincoats?

LINYECO makes raincoats using materials such as LDPE, HDPE, CPE, EVA, PEVA, and PVC.

8. Can LINYECO print raincoats?

LINYECO can print raincoats. We will use different printing techniques, such as gravure printing or silk printing, depending on the style and material.

9. What material LINYECO can produce Body bags/corpse bags?

Some common materials used in the production of body bags include: EVA/PEVA or PVC

10. How many colors can LINYECO print bags?

PE bag or Zipper bag with print: printing up to 6 colors.

11. Does LINYECOproduce customized products?

– LINYECO may offer customized products based on customer needs and preferences.

– Customization options may include: Size, Color, Material, Features

–  LINYECO to work closely with customers to understand their requirements and provide tailored solutions. If you’re interested in customized products, You can contact  LINYECO  directly to inquire about their customization options, capabilities, minimum order quantities, pricing, and lead times.

12. How long does PE bag take to produce?

The production time for Polyethylene (PE) bags can vary depending on size, complexity, quantity, and manufacturing process.

13. What certificates do LINYECO have?

–  LINYECO is certified for ISO 9001:2015

– Its quality system continually improves through contract manufacturing practices

14. How to order products at LINYECO?

If you want to place the order from us, please send product information to:

Mail: sales@linyeco.com

Phone: (+84) 2633.727.416

We are always ready to advise you on products.

15. What is an anti-static bag? Surface resistance of PE bag/zipper bag?

– An anti-static bag is used to protect electronic components from damage caused by electrostatic discharge. These bags are made from materials with low static electricity levels to prevent buildup and discharge, which can potentially harm sensitive components. They are commonly used in electronics, computer hardware, and telecommunications industries.

– The typical surface resistance for an anti-static bag ranges from 109 to 1011 Ω/sq.

16. How is surface resistivity classified for materials?

Materials are classified based on surface resistivity as shown in the table

  Conductive Static Dissipative Anti-static


Surface Resistivity (Ω/sq) 101~105 106~108 109~1011 1012~1015
Anti-static action Very Good Quite good

17. Which kind of cover cap is LINYECO manufacturing?

We manufacture cover caps using PE/CPE/EVA/PVC, etc., in various shapes (circle, square, cylindrical, and box) with sewn or sealed elastic bands. They are suitable for industrial, food, and medical use.

18. How many walls does a kangaroo/biohazard bag have?

Kangaroo bags/ Biohazard bags typically have 3-4 walls.

19. Does LINYECO produce long gloves? What is the maximum length of gloves can be produced?

LINYECO can produce long gloves. Gloves can be produced in different colors, thicknesses, and sizes (up to 90cm long) and are also available with elastic cuffs.

20. Does LINYECO produce gloves in custom sizes?

We offer custom gloves in various colors, materials, and sizes.

21. What is gravure printing?

– Gravure printing, also known as rotogravure, is a popular printing technique used in the packaging industry for high-volume products. Unlike other printing methods, gravure printing directly transfers ink onto the substrate without any intermediate carrier. It is a reliable and efficient method that has been used for many years in the packaging industry.

– Advantages of Gravure Printing: High-Quality Images, Fast Printing Speeds, Durable Prints.

22. What is silk screen printing?

– Silk screen printing, or screen printing, is a versatile printing technique that uses a mesh screen to transfer ink onto a substrate. It’s used to create high-quality prints with vibrant colors and intricate designs on various materials. 

– It offers advantages, such as the ability to print on a wide range of materials, durability, and vibrant colors.

23. Which countries does LINYECO export products to?

Our major export markets include the USA, Japan, and many European countries.

24. How to contact to receive a quote?

Contact Us

  • Loc Son Industrial Zone, Loc Son Ward, Lam Dong Province
  • Mail: sales@linyeco.com
  • Phone: (+84) 2633.727.416

25. Which material is used to make zipper bags?

Zipper bags, also known as ziplock bags or resealable bags, are typically made from low-density polyethylene (LDPE)

26. Does LINYECO make recycled bags?

LINYECO does produce recyclable bags. Recycled plastic used in production is recycled plastic directly from the factory.

27. Does LINYECO produce degradable plastic?

LINYECO can produce OXO degradable plastic.

28. Where to find the catalog?

Please contact our sales team and ask for the latest catalog. 

29. Please contact our sales team and ask for the latest catalog.

–  LINYECO has a control room

–  LINYECO ‘s medical products are manufactured in controlled rooms with air showers, metal detectors, and strict hygiene control.

30. Are medical devices sterilized?

Medical devices can be sterilized using Ethylene oxide (EO). Sterilization is a crucial process in the medical field, which helps to prevent medical products from being contaminated by microorganisms such as bacteria, viruses, and fungi that could cause infections or other complications.

31. What styles of raincoats does LINYECO produce?

– Some common styles of raincoats we produce:

  • Raincoat with hood, drawstring, snap buttons, elastic cuffs, and printing.
  • Rainsuit: Rain jacket + Rain trousers. Most suitable for active outdoor activities.
  • Rain Ponchos with hood, drawstring

LINYECO may offer a range of designs within these categories or have their unique styles tailored to the preferences and needs of their customers. For specific information about the designs currently offered by LINYECO, contact us directly for the most up-to-date information.

32. Can Zipper bags be used for food?

Zipper bags are a great option for storing food. They are a quick and easy way to seal food items, ensuring their freshness and preventing spills or leaks.  LINYECO offers zipper bags made from LDPE materials that are safe for food contact.

33. Does LINYECO have customized packaging?

LINYECO can provide customized packaging upon request. Simply send us your packaging sample and desired packaging method, and we will provide a quote.

34. Where to buy LINYECO stock products?

Our stock products are sold extensively in the retail market. Please contact us if you need to enter the quantity of our available products for use or distribution.

35. Can LINYECO provide a product's certificate of origin?

We can provide a Certificate of Origin from Vietnam to reduce your import duty.

36. Does LINYECO support resolving complaints from Customers?

We are ready to listen to customers. Then find the source of the problem and resolve the customer’s complaint

37. How does LINYECO control sharp objects used in production?

– Sharp (Metal) Object Control

  • We strictly control the use of sharp objects in our production line, such as blades and sewing needles.
  • At any given time, the number of sharps being used in the production line + the quantity in stock = the quantity assigned to the production line.
  • We have selected a specialized supplier for our blades to ensure they are high quality, do not break easily, and do not produce small fragments.

– Additionally, all of our products must pass through a metal detector before shipping to ensure they are free of any metal.

38. How to calculate the weight of the film with known thickness, or vice versa?

    • If you know the density, area, and thickness:

    Weight (g) = Density × Area ( × Thickness (cm)

    • If you know the weight, area, and thickness:

    Density = Weight(g) / ((Area ( × Thickness(cm))

    • If you know the weight, density, and thickness:

    Area ( = Weight (g)  / (Density × Thickness(cm))

    • If you know the weight, density, and area:

    Thickness (cm) = Weight (g) / (Density × Area ())

    Note: the density

    • LDPE ≈ 0.92 g/cm³
    • HDPE ≈ 0.96 g/cm³
    • For Example: LDPE Flat bag has 2 layers of film. Thickness 50 microns, width 50 cm, and length 40 cm.
    • To calculate the weight of LDPE Flat bag with a known thickness, you can use the formula for calculating the weight of a material, which is:
    • Weight (g/pc) = Density × Area (× Thickness (cm)

                             = 0.92 x 50 cm x 40 cm x 2 (layers) x 0.005 cm = 18.4 g/pc