Bag Customization:Anything You Want, We Can Help You Achieve!
Author : wing Update Time：June 5, 2024
【 Abstract 】 :
With its excellent comprehensive performance, plastic packaging bags of various varieties and beautiful appearance are constantly replacing the status of traditional packaging with an unstoppable development trend. The average annual growth rate of plastic packaging bag consumption in the past and future are higher than other packaging methods, and its use rate is not only faster than paper packaging, glass packaging, metal packaging, etc., but also higher than plastic hard packaging.
With its excellent comprehensive performance, plastic packaging bags of various varieties and beautiful appearance are constantly replacing the status of traditional packaging with an unstoppable development trend. The average annual growth rate of plastic packaging bag consumption in the past and future are higher than other packaging methods, and its use rate is not only faster than paper packaging, glass packaging, metal packaging, etc., but also higher than plastic hard packaging.
The status of plastic bags in the entire packaging field is getting higher and higher. In recent years, the flexible packaging industry has been rapid development, but also strongly promote the progress of clothing, food, daily chemical and pharmaceutical industries. The progress of these industries has in turn further stimulated the market demand for plastic bags. The data provided by the famous American business communication company (BCC) in the "changing plastic packaging industry" special report is that the total amount of the world's plastic packaging bag market reached 6.31 million tons in 2001, and the largest amount is food packaging bags and clothing bags.
The market of plastic packaging bags due to its good comprehensive performance and performance-to-price ratio, making it one of the fastest growing varieties in packaging. Although the plastic packaging bag can not represent the internal quality of the product, the quality of the packaging directly affects the quality of the product and market sales. Good packaging can guarantee and extend product quality and service life. Excellent packaging can also win the reputation of the product, to provide consumers with the guarantee of choosing the product, good packaging is a panacea for the product.
Many companies must be upgrading product packaging, want to know whether some of the production processes and materials of plastic bags can meet their needs. Today, professional flexible packaging manufacturer Goolien packaging combined with rich industry experience for you to sort out a detailed packaging production knowledge, see if you have missed the knowledge point?
1. Production process
2. Printing
Gravure printing: refers to the text and pattern on the original manuscript made into a printing plate, coated with ink on the surface of the printing plate, and transferred the text and text on the printing plate to the surface of the printed material through pressure, accurately and in large quantities to copy the same print as the original. Table print and inside print.
Gravure printing: refers to the text and pattern on the original manuscript made into a printing plate, coated with ink on the surface of the printing plate, and transferred the text and text on the printing plate to the surface of the printed material through pressure, accurately and in large quantities to copy the same print as the original. Table print and inside print.
3. Recombination
The basic principle of plastic composite flexible packaging: Each material has different advantages and disadvantages, and the two or more layers of materials are bonded together through the media (such as glue), so that the packaging film and bag achieve better performance technology. This technology is called "composite process" in the production process.
The basic principle of plastic composite flexible packaging: Each material has different advantages and disadvantages, and the two or more layers of materials are bonded together through the media (such as glue), so that the packaging film and bag achieve better performance technology. This technology is called "composite process" in the production process.
4. Maturation
The purpose of curing is to speed up the rate at which the glue cures between materials.
The purpose of curing is to speed up the rate at which the glue cures between materials.
5. Cut
Cut the printed and composite materials into the specifications required by customers.
Cut the printed and composite materials into the specifications required by customers.
6. Make bags
The printed, composite and slitted materials are made into all kinds of bags required by customers. Can make a variety of bag types: middle bag, side bag, upright bag, K bag, R bag, four side bag, zipper bag.
The printed, composite and slitted materials are made into all kinds of bags required by customers. Can make a variety of bag types: middle bag, side bag, upright bag, K bag, R bag, four side bag, zipper bag.
7. Quality control
①. Test raw materials before storage
②. product online testing
Print inspection - residual solvents, sets, etc
Composite inspection - composite strength, bubbles, wrinkles, etc
Bag inspection - sealing strength, size deviation, etc
③. product inspection before shipment
①. Test raw materials before storage
②. product online testing
Print inspection - residual solvents, sets, etc
Composite inspection - composite strength, bubbles, wrinkles, etc
Bag inspection - sealing strength, size deviation, etc
③. product inspection before shipment
8. commonly used printing materials
BOPP
Biaxial tensile polypropylene, it is formed after biaxial tensile film, no heat sealing performance, commonly used as printing materials, because of its superior moisture resistance, suitable for easy moisture absorption of biscuits, cold fruit, puffed food, sunflower seeds and other surface printing materials.
Biaxial tensile polypropylene, it is formed after biaxial tensile film, no heat sealing performance, commonly used as printing materials, because of its superior moisture resistance, suitable for easy moisture absorption of biscuits, cold fruit, puffed food, sunflower seeds and other surface printing materials.
KOP
The bidirectional polypropylene coating is coated with a layer of about 1-2um polyvinylidene chloride (PVDC, also known as K coating) on the OPP surface, so KOP has both OPP performance and PVDC advantages. It is often used in mooncakes and other foods that need to be insulated from oxygen and water. KOP has a barrier function similar to aluminum thin, but also transparent, can see the packaging contents.
The bidirectional polypropylene coating is coated with a layer of about 1-2um polyvinylidene chloride (PVDC, also known as K coating) on the OPP surface, so KOP has both OPP performance and PVDC advantages. It is often used in mooncakes and other foods that need to be insulated from oxygen and water. KOP has a barrier function similar to aluminum thin, but also transparent, can see the packaging contents.
PCO
The bidirectional heat sealing polypropylene film has the performance of OPP and the performance of double-sided heat sealing; Often used in disk, seaweed packaging.
The bidirectional heat sealing polypropylene film has the performance of OPP and the performance of double-sided heat sealing; Often used in disk, seaweed packaging.
PL
The bidirectional heat sealing polypropylene pearl-coated film is made of polypropylene resin as the main raw material, and a certain amount of pearl-coated powder is added. Used for packaging cosmetics, soap, labels, etc.
The bidirectional heat sealing polypropylene pearl-coated film is made of polypropylene resin as the main raw material, and a certain amount of pearl-coated powder is added. Used for packaging cosmetics, soap, labels, etc.
PET
Polyester film
Like OPP, it is a two-stage bidirectional stretch film that is laterally stretched after longitudinal stretching, or a stretch film that is simultaneously stretched vertically and horizontally and then thermally fixed. Commonly used as machine packaging film, high temperature cooking bags, zipper bags and other products printing materials.
Polyester film
Like OPP, it is a two-stage bidirectional stretch film that is laterally stretched after longitudinal stretching, or a stretch film that is simultaneously stretched vertically and horizontally and then thermally fixed. Commonly used as machine packaging film, high temperature cooking bags, zipper bags and other products printing materials.
KPET
Chinese name: Coated polyester film, PET surface coated with a layer of about 1-2um polyvinylidene chloride (PVDC, also known as K coating).
So KPET has both the performance of PET and the advantages of PVDC. It is often used in mooncakes and other foods that need to be insulated from oxygen and water. Like KOP, it has a barrier function similar to aluminum thin, and it is transparent and can see the packaging contents. Its excellent high temperature resistance makes it more suitable for machine packaging and other bag types requiring high temperature resistance.
Chinese name: Coated polyester film, PET surface coated with a layer of about 1-2um polyvinylidene chloride (PVDC, also known as K coating).
So KPET has both the performance of PET and the advantages of PVDC. It is often used in mooncakes and other foods that need to be insulated from oxygen and water. Like KOP, it has a barrier function similar to aluminum thin, and it is transparent and can see the packaging contents. Its excellent high temperature resistance makes it more suitable for machine packaging and other bag types requiring high temperature resistance.
NY
Nylon, vacuum packaging, frozen, high temperature cooking food packaging; Commonly used thickness is 15um, because it is very thin, so it is very loud to swing; The density is 1.15g/cm3.
Nylon, vacuum packaging, frozen, high temperature cooking food packaging; Commonly used thickness is 15um, because it is very thin, so it is very loud to swing; The density is 1.15g/cm3.
PVC
Polyvinyl chloride, generally used for bottle labels, single-layer material, printing is complete without composite, PVC glue (alcohol and cyclohexanone 1:1 ratio) bonding; Common thickness: 40um.
Polyvinyl chloride, generally used for bottle labels, single-layer material, printing is complete without composite, PVC glue (alcohol and cyclohexanone 1:1 ratio) bonding; Common thickness: 40um.
Mat-opp
Bidirectional stretch polypropylene matting film, often used in puffed food, moon cakes, paper towels, cosmetics packaging.
Bidirectional stretch polypropylene matting film, often used in puffed food, moon cakes, paper towels, cosmetics packaging.
9. commonly used composite materials
CPP
Unlike the stretched OPP, CPP is cooled and cured after the film is formed in the original relevant state. CPP is the most commonly used heat sealing material. As a printing material commonly used for paper towel packaging; As a composite material, it is commonly used as a composite with other materials as a heat sealing layer.
Unlike the stretched OPP, CPP is cooled and cured after the film is formed in the original relevant state. CPP is the most commonly used heat sealing material. As a printing material commonly used for paper towel packaging; As a composite material, it is commonly used as a composite with other materials as a heat sealing layer.
PET
Unstretched polyethylene, commonly used PE are IPE, CPE, LLDPE, ordinary PE. Along with CPP, it is the most commonly used heat sealing material. Used for packaging milk powder, shampoo, washing powder and other chemical products. In addition to commonly used as a surface printing material, it can also be used as a composite material, which has no heat sealing performance and can not be placed in the heat sealing layer, and is generally used as a composite layer in the middle of the product, which can increase the stiffness of the bag and block oxygen performance.
Unstretched polyethylene, commonly used PE are IPE, CPE, LLDPE, ordinary PE. Along with CPP, it is the most commonly used heat sealing material. Used for packaging milk powder, shampoo, washing powder and other chemical products. In addition to commonly used as a surface printing material, it can also be used as a composite material, which has no heat sealing performance and can not be placed in the heat sealing layer, and is generally used as a composite layer in the middle of the product, which can increase the stiffness of the bag and block oxygen performance.
VMPET
Aluminized polyester film, that is, a layer of aluminum foil is steamed on the surface of PET, which has the properties of PET and aluminum foil.
Aluminized polyester film, that is, a layer of aluminum foil is steamed on the surface of PET, which has the properties of PET and aluminum foil.
VMCPP
Aluminized unstretched polypropylene, that is, a layer of aluminum foil is steamed on the surface of CPP, which has the properties of CPP and AL.
Aluminized unstretched polypropylene, that is, a layer of aluminum foil is steamed on the surface of CPP, which has the properties of CPP and AL.
AL
Aluminum foil, insulation and light blocking is very good. Aluminum foil itself has low strength, no thermal adhesion, easy to break at the fold, so it is rarely used alone, generally used for products that are very sensitive to oxygen and water, advanced composite flexible packaging, with very good moisture, oxygen and UV resistance.
Aluminum foil, insulation and light blocking is very good. Aluminum foil itself has low strength, no thermal adhesion, easy to break at the fold, so it is rarely used alone, generally used for products that are very sensitive to oxygen and water, advanced composite flexible packaging, with very good moisture, oxygen and UV resistance.
NY
Nylon, in addition to commonly used as a surface printing material, can also be used as a composite material, its no heat sealing performance, can not be placed in the heat sealing layer, generally used as a composite layer in the middle of the product, can increase the sealing strength of the bag and prick resistance; It is often used as the middle layer of bags that need to withstand pressure and high temperature sterilization. Such as jelly bags, laundry detergent bags, chestnut bags and so on. Its oil resistance is suitable for packaged meat and other oily products.
Nylon, in addition to commonly used as a surface printing material, can also be used as a composite material, its no heat sealing performance, can not be placed in the heat sealing layer, generally used as a composite layer in the middle of the product, can increase the sealing strength of the bag and prick resistance; It is often used as the middle layer of bags that need to withstand pressure and high temperature sterilization. Such as jelly bags, laundry detergent bags, chestnut bags and so on. Its oil resistance is suitable for packaged meat and other oily products.
10. plastic packaging bag professional recommendation:
Goolien packaging professional engaged in the packaging industry has been 23 years, focus on professional, the company since its inception, has been "mutual cooperation, mutual benefit, common development" for the purpose, constantly do fine, do fine, stronger, and leading the flexible packaging industry. Goolien packaging services customers in many countries around the world, ADIDAS, AAPE, IZZUE, I.T, Calvin Klein and other famous brands are deep cooperation.
Goolien packaging professional engaged in the packaging industry has been 23 years, focus on professional, the company since its inception, has been "mutual cooperation, mutual benefit, common development" for the purpose, constantly do fine, do fine, stronger, and leading the flexible packaging industry. Goolien packaging services customers in many countries around the world, ADIDAS, AAPE, IZZUE, I.T, Calvin Klein and other famous brands are deep cooperation.
Reasonable quotation: Goolien packaging can give customers the most comprehensive and reasonable quotation according to different materials and different processes.
Exquisite printing: Goolien packaging uphold the fine style, there are a large number of professional teachers engaged in more than 20 years of color printing, and professional quality inspection personnel to check the quality of the printing surface, so that every detail of the packaging bag is fine to the United States.
High efficiency: Goolien packaging is good at coordinating the supply chain, and has a complete process from order access to finished product delivery, truly realizing the efficient state from raw material supply to finished product delivery, saving a lot of time and cost for customers.
Service in place: Goolien packaging is good at capturing customer needs, in line with the principle of maximizing customer worry, in the selection of materials as much as possible to save costs, control every production link, only to increase product satisfaction from 99% to 100%.
Any cooperation is not without reason, Goolien packaging from the production environment to the selection of raw materials, and then to the control of every production link, only to increase product satisfaction from 99% to 100%, and will always persist! Whether you are clothing, or food, chemical, home gifts, electronics and other industries, please bid farewell to a person's battle, Goolien packaging intimate partner 24 hours with.
