Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail:

Top-line packaging
Top-line packaging
Top-line packaging
Top-line packaging Home  >  NEWS  >  Industry News

What are the interactions between the packaging material and the object to be packaged

source:Industry News release time:2022-11-01 Hits:    


  1, the material in the packaging material migrates to the packaging, so that the packaging is contaminated, thus affecting the quality and health performance of the packaging.

  This category includes residual solvent, evaporation residue (respectively water,4% acetic acid,65% ethanol, n-hexane to simulate packaging materials and water, acid, alcohol, oil contact compatibility), potassium permanganate consumption, heavy metal content, diamino-toluene content, etc.

  2, due to the barrier performance of packaging materials is not enough, the substances in the environment through the packaging material migration to the packaging material or the components in the packaging material migration to the outside world through the packaging material to reduce the effective components of the packaging (such as aromatic compounds).

  Such as oxygen transmittance, water vapor transmittance and oil permeability fall into this category.

  3, the packaging of the components into packaging materials, packaging materials caused by the nature of the changed, destroyed the packaging for corrosion of the structure or the packaging materials, such as some of the packaging material removed some of the turn, layer destroyed the glue is the structure of the cutting, reduce a little bit of strength, or some corrosive material in the packaging migration to the aluminum box or aluminized layer caused box or wrong plating layer corrosion.

  Food packaging, in particular, requires long shelf life at room temperature products, flexible packaging materials put forward harsh requirements.

  Traditional metal and glass packaging materials have completely impermeable properties to oxygen and water vapor, and are the best packaging materials for food packaging, but as a high barrier composite flexible packaging new materials, has become a strong competitor for metal and glass packaging materials.

  Their advantages over glass or metal are low cost, light weight, impact resistance, transparency, microwave heating, convenient and popular among consumers, and large choice of packaging design.

  The main structure of composite flexible packaging material is plastic polymer;

  Its disadvantages are: absorption of food fragrance; Small molecules in plastic migrate to food by diffusion and cause taste or odor changes, have a certain permeability to gas, so its shelf life is not as good as metal, glass packaging materials.

  The barrier performance of plastic composite flexible packaging material depends on the barrier layer of gas and water vapor barrier, usually accepted by everyone "barrier type plastic polymer" proprietary term is limited to those plastic polymer or plastic complex with very high barrier performance to oxygen.

  They shall have < 38.9 ml * mm /(m2●24 h at 23°C. But high barrier type plastic polymer oxygen permeability coefficient at 23 degrees Celsius is required to reach 0.777 cubic centimeters (m2●24 hours * kPa).

  In most cases, plastic polymers are also a good barrier to carbon dioxide and many organic vapors and odors if their oxygen permeability is less than 38.9.

  In addition, the absorbability mentioned above will also be low and the mobility negligible, but the permeability of water is not directly related to the permeability of oxygen.

  Often used in composite flexible packaging material cut off polyvinylidene chloride, process layer of plastic have EVOH, pan (polypropylene eyes), dad, pet, aluminum box and aluminum plating film, but reached high separation performance requirements of plastic polymer is only polyvinylidene chloride process EVOH and two kind of, table 3-10 block type is commonly used in the plastic coefficient of oxygen permeability and water vapor barrier property of polymer.

Read recommendations:

Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch

super pouch sales

zip lock bag for coffee Processing

How to inspect the appearance of vacuum bag?

BIB bag manufacturer tells you application scenarios

Popular recommendation

Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag

Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va

BIB Bag-in-box dispenser with butterfly valve vitop for drinking water wine juice

spout pouch packaging bags Manufacturing

bag in box Vendor

custom packaging coffee bags

pouch with handle manufacturer

kraft paper spout pouch manufacture

biodegradable spout pouches wholesale

coffee scrub pouch price

Who are the manufacturers of chrysanthemum tea packaging bags?

Sterilization classification and principle of sterile bags

What is the quality of degradable plastic bags?

What are the liquid packaging methods?

How to use food packaging bags specifically

The difference between aluminum foil bag and composite bag and vacuum packaging bag

Efficient protection, easily carry: new choice of liquid packaging bag.juice bag in box company

How to inspect the appearance of vacuum bag?

About the thickness of vacuum packaging bag

Different products have different standard requirements for composite packaging.stand up coffee pouc

Do you need to pay attention to the shelf life of food packaging bags?custom snack food bags

The important role played by vacuum bags.Vacuum zipper bag

How to Plan Bag in Box Printing.bag in box direct sales

Reasons for Odor in Food Packaging Bags

What are the advantages of a bag in a box.bag in box wholesaler

How to build a packaging bag brand?

Overview of the requirements for the bagging process of fruit juice bags.recycled kraft paper pouch

Independent Bag Industry Market.aluminum foil bags for cooking

The characteristics and necessity of anti -ultraviolet packaging bag

How to remove the words on the packaging bag.



Wechat Whatsapp

Leave Your Message