Cellphone:+8615221892684

Email: sasha@duxiapackage.com

Cellphone:+8615221892684

Email:sasha@duxiapackage.com

Cellphone:+8615221892684

Email:sasha@duxiapackage.com

Introduction of composite packaging bags

     Definition of composite materials:

    Combine materials with different characteristics to improve the air permeability, moisture permeability, oil resistance, water resistance, and chemical resistance of packaging materials, so that they can prevent insects, dust, microorganisms, light, fragrance, and odor It has better mechanical strength and processing applicability, as well as heat resistance, cold resistance, and impact resistance, as well as good printing and decoration effects. The composite flexible packaging material must be made into various packaging bags before it can be used.

    Classification of composite packaging bags

    After the composite material is made into bags, it can be classified into: three-side sealing bag, yin-yang bag, middle sealing bag, pillow bag, five-side sealing bag, eight-side sealing bag, stand-up bag, zipper bag, straw bag, roll film, etc.

     According to the function, composite packaging bags can be classified into: high-yin diaphragm bags, retort film bags, antistatic film bags, antibacterial film bags, anti-fog film bags, vacuum bags, chemical resistant film bags, deoxygenated packaging film bags, modified atmosphere packaging Film bags etc.

    Classified by material: laser aluminized film composite paper material, laser transfer paper material, paper composite material, aluminum composite material, plastic composite material, fabric composite material, etc.

 

     Bag making method of composite packaging bag

    The composite flexible packaging material must be made into various packaging bags before it can be used. There are two ways to make bags. One is that the packaging manufacturer uses roll film to fill on the automatic packaging machine, and the packaging is formed into various packaging bags; the other is that the bag making machine makes various packaging bags and then fills the contents.  Due to the precise control of professional bag making, the beautiful bag shape, the large variation of bag making, and the many types of bags, in many cases, the bag is made into the bag first and then the filling or other packaging actions are performed separately.

    The use of composite packaging bags is very wide. There are different material requirements, packaging requirements and performance requirements for different contents. Shanghai Duxia Industry and Trade Co., Ltd. has been deeply involved in the production and sales of composite packaging bags for many years. Now the commonly used packaging content and other corresponding requirements are organized into a table for your reference only.

 

Content packaging

Material combination

wrapping method

Performance requirements

Puffed food

BOPP18/VMCPP25

BOPP18/VMPET12/PET40

Inflatable packaging

Air tightness, shading, oil resistance

Candies, biscuits, dry foods, dried fruits

OPP/CPP, OPP/VMCPP

Manual or roll film packaging

Transparency, gloss, economy, decoration

Liquid detergent and cream

PET/VMPET/PE ,PET/AL/PE, PET/PA/PE

Liquid automatic filling packaging

Anti-pollution, shading, air tightness, high strength

Soy sauce

PET/PE ,PA/PE, PA/CPP,PET/CPP

Liquid automatic filling packaging

Anti-pollution, compressive strength, high-speed packaging, heat sealing strength

Coffee, tea, seasoning powder, etc.

PET/VMPET/PE,PET/AL/PE,OPP/VMPET/PE, OPP/AL/PE

Normal manual, automatic, vacuum

Fragrance retention, shading, air tightness, antistatic, anti-pollution

Meat products, fish products

PA/PE,PET/PE,MATTOPP/PA/PE

Vacuum and freeze

Barrier property, puncture resistance, heat seal strength, heat resistance

Liquid stand-up bag

PET12/AL7/PET12/LLDPE, PET12/AL7/NY15/LDPE, BOPP20/NY15/LLDPE,PET12/LLDPE

Automatic filling

Barrier property, pressure resistance, heat resistance, puncture resistance.

Pesticides (powder, granule)

PET(NY)/LLDPE, BOPP/VMPET/LLDPE, BOPP(PET)/AL/LLDPE

Autofill

Barrier, anti-pollution, heat sealing strength

Pesticides (liquid or emulsion)

PET12/AL/NY/CPP

Autofill

Corrosion resistance, pollution resistance, high barrier properties, heat seal strength

Frozen food (including ice cream)

BOPP/PE, PET/PE, PA/PE, MATTOPP/PA/PE, OPP/VMCPP

Automatic packaging, refrigerated packaging

Cold resistance, transparency, puncture resistance, shading

Cooking food

PET/RCPP, PA/RCPP, PET/AL/NY/RCPP, PET/NY/AL/RCPP

121 degrees Celsius high temperature sterilization

Barrier, heat resistance, puncture resistance, shading

Rice

KPA/LLDPE, NY15/LLDPE100-110

Vacuum

High tensile strength, low temperature heat sealing, transparency, high handle strength

     The above are the material composition and packaging methods of some product packaging organized by our company. If you need professional customized food packaging bags, clothing bags, pet food packaging bags, etc., please contact our sales staff. Our sales staff will professionally customize the packaging bags you need.

Start customizing your packaging bag here

small_c_popup.png

Let's have a chat

Leave your message, our sales will contact you as soon as possible!