Blister packaging in detail
A, the main classification of blister products
1, if you classify according to the thickness of the material, it can be divided into
A, the ordinary thin blister thickness of 0.14 ~ 5.0mm --- Mainly using PVC, PP, PS (HIPS), PET (including APET and PETG), PE, BOPS and recyclable paper trays and other materials and effects of folded edges, folded, tri-folded, cylinders, folded boxes, sky and earth boxes, high-frequency and other non-thermal molding blister products The products are widely used in food, medicine, electronics, toys, computers, daily necessities, cosmetics and mechanical hardware industries.
B, special thick blister thickness of 0.14 ~ 8.0mm --- mainly using PVC, PP, PS (HIPS), PET (including APET and PETG), ABS, PC, PE and PMMA and other materials and effects of injection molding Types of blister products, the main products are refrigerator liners, advertising light boxes, merchandise display racks, pet cage chassis, rear projection TV backshells and a variety of mechanical panels, etc., can be an alternative to injection molded products, with low mold costs (only 1/20 of the injection mold), short production cycle, short mold development time (generally as long as 3 to 5 days) and so on.
The reason why not on the type of material to be classified, mainly taking into account the ordinary thin blisters and special thick blisters with some differences in the materials used, but PVC, PP, PS and PET in the two types of blisters have a place in the family of blisters known as the "four heavenly kings"!
PVC hard sheet toughness moderate, not easy to burn, combustion will produce chlorine gas, a certain impact on the environment, PVC is easy to heat sealing, can be used to sealing machine and high-frequency machine sealing, is the main raw material for the production of transparent blister products
PS hard sheet of low density, toughness is poor, easy to burn, combustion will produce styrene gas (is a hazardous gas), so it is generally used for the production of a variety of industrial use! So it is generally used to produce a variety of industrial blister trays.
PET hard sheet of good toughness, high transparency, easy to burn, burning does not produce harmful gases, is an environmentally friendly material, but the price is high, suitable for high-grade blister products, Europe and the United States in the blister shell is generally required to use PET hard sheet, but it is not easy to heat sealing, to the encapsulation of the package has brought great difficulties, in order to solve this problem, people in the PET surface composite on a layer of PVC film, named as PETG hard sheet, but the price is a little higher.
PVC sheet is a wide range of uses and popular materials, PVC film can be divided into food-grade and industrial-grade two, and can be made into transparent, colored, anti-static, gold-plated, flocking and other kinds of sheet for vacuum forming, which is characterized by high transparency, good surface luster, less crystal points, small water lines, wide range of uses, impact resistance, and easy to form products in line with the U.S. FDA, Japan's PL food hygiene and sanitation. FDA, Japan PL food hygiene standards, made of products widely used in toys, food, electronic products, medicine, electrical appliances, gifts, cosmetics, stationery and other products packaging.
Introduction of PS sheet and its products
PS sheet is a new type of environmentally friendly packaging material developed in recent years, with its excellent thermoforming properties, good anti-impact performance, environmental performance and hygiene performance, widely used in medicine, food, toys, electronics and clothing.
Main features:
1. Low static electricity, suitable for low static electricity product packaging.
2. Easy to vacuum molding, and the products have good anti-defense performance.
3. Good hygienic performance, can be directly in contact with food, not harmful.
4. Easy coloring process, can be made into different colors of materials, production into different colors of the vacuum cover.
5. Good hardness, the hardness of this sheet material is better compared with other sheet materials of the same thickness. Thermoforming cups can be used as hot and cold drinking cups.
6. It meets the requirements of environmental protection, can be recycled and reused, and does not produce harmful substances that endanger the environment when incinerating its waste.
Main uses:
1. Produce low static electricity (such as electronic products ......)
2. Food packaging (such as: beverages, candy, and meat ...)
3. Packaging)
3. dairy products (polystyrene sheet containers packaged dairy products can be placed in the freezer is not easy to deteriorate;)
HIPS Performance Parameters:
Specific Gravity: 1.04g/cm
Tensile Strength: Longitudinal ≥ 26MPa Horizontal 24 ≥ MPa
Weighing Strength (no incision): 18KJ/m2
Heat dimensional change (no transverse) <4%
Vicat deformation temperature: 90 ℃
Health properties in line with: GB9689 standard
Transparent PS performance parameters:
Specific gravity: 1.04/cm
Tensile strength: longitudinal ≥ 26MPa transverse 24 ≥ MPa
Weather strike strength (no cut): 18KJ/m2
Heat dimensional change (longitudinal and transverse) <4%
Light transmittance: ≥ 85%
Health properties in line with: GB9689 standard
PET sheet and its products
PET sheet is a new type of material developed in recent years by virtue of its excellent toughness, High strength, high transparency, and can be recycled, combustion does not produce harmful gases, excellent environmental performance, gradually by consumers and producers of great obscurity; in line with the trend of environmental protection.
Main features:
1. Excellent transparency and finish, good display effect.
2. Excellent surface decorative properties, can be printed without surface treatment, easy to press patterns, easy metal processing (vacuum plating metal layer)
3. Good mechanical strength.
4. Good barrier performance to oxygen and water vapor.
5. Good chemical resistance, can withstand a variety of chemical substances.
6. Non-toxic, hygienic and reliable, can be used for food, drugs and medical equipment packaging, and can be Y-ray sterilization of the items it packages.
7. Good adaptability to environmental protection, can be economically and conveniently recycled; incineration of its waste, does not produce environmentally harmful substances. Thermoforming performance is good, comparable with ordinary PVC sheet, can be vacuum formed to produce excellent performance PET thermoforming products; PET sheet is considered to be in line with environmental protection requirements of an ideal packaging material.
Performance Parameters:
1. Density 1.33g/cm Oxygen Permeability 4-4.5cm*mm/(m*24h*0.1mpa)
2. Tensile Strength Longitudinal 53MPA Moisture Permeability ≈3G*mm/(M*24H)
Transverse 53MPA Maximum Use Temperature Nearly 70 degrees
3. elongation at break longitudinal 250% transverse 250%
4. dimensional change by heat longitudinal ≤ 5% transverse ≤ 5%
5. transparency ≤ 3%
6. hygienic properties in accordance with the requirements of GB13113-91
Main applications:
Electronics, food, toys, color box window, Collar tray,
PP sheet and its products
PP sheet is PP resin by beer out, calendering, cutting and other processes and made of lightweight, bright calm surface, good heat resistance, high mechanical strength, excellent chemical stability and electrical adiabatic, non-toxic and so on, after thermoforming can be made into beverage cups, food boxes and other daily necessities.
Main features:
Can be used at 100 ℃ for a long time and can withstand 121 ℃ high temperature bacteria treatment, moisture-proof performance is outstanding, reliable hygiene performance, widely used in food packaging. With excellent folding performance, it can be made into stationery clips, boxes and so on.
Performance Parameters:
Item Unit Indicator Remarks
Density g/cm 0.96
Tensile Strength: (Longitudinal \ Horizontal) MPa ≥20.0
Tensile Modulus of Elasticity: (Longitudinal \ Horizontal) ≥8X10X
Impact Strength (Notched) Longitudinal KJ/ ≥7.0
Impact strength (notch) transverse KJ/㎡ ≥3.5
Vicat softening point ≥120 ℃
Longitudinal dimensional change rate */(%) ＜60
Sanitary properties in line with the requirements of GB13113-91
2, according to the performance of the material to be categorized, it can be divided into
Ordinary material, environmental protection material, cold material, breakage material, conductive material and anti-static material The material can be classified as general material, environmental protection material, cold-resistant material, breakage-proof material, conductive material and anti-static material.
3, according to the effect of the products to be classified, can be divided into
Transparent material, color material, gold-plated material and flocking material.
Anti-static material is usually PVC, PP, PS and PET material, of course, PE material can also be done; conductive material is usually PP, PS and PET material; and flocking is usually PVC and PS material.
Plush (flocking) material and its products:
Plush (flocking) material is a kind of material that is used more in recent years, which mainly uses PVC and PS material as the base sheet, and plants various colors of fluffs on the sheet, which is mainly suitable for some noble and beautiful products (such as the inner tray of cosmetic, cell phone inner tray, the inner tray of wine, and the inner tray of eyeglasses box, etc.).
Gold-plated (silver) materials and their products:
Gold-plated (silver) materials are mainly in a variety of materials and eye materials plated into gold or silver is not mainly used in some high-grade food packaging and Christmas ornaments, (such as moon cakes, chocolate, Christmas clock models, etc.).
4, according to the structure of the products to be classified, it can be divided into
Bottom bracket, inner bracket, outer cover, set, insert card, suction card, double bubble shell, half bubble shell, folded bubble shell, triple folded bubble shell, cylinder folding box, heaven and earth box, high-frequency, ultrasonic, crafts and blister (such as calendars, masks, etc.) and model of blister (such as the carboys, boat models, TV set back cover, etc.).
Insert card packaging refers to the form of packaging in which the paper card is inserted with the transparent blister folded over three sides, which is characterized by the fact that the packaging does not require any packaging equipment, and only requires the workers to put the products, blisters and paper cards in place.
The problems that should be noted are:
1. Paper card and folded over the edge of the bubble shell size is appropriate, inserted together too tightly, the paper card and the bubble shell will be deformed; too loose, it will be easy to detach.
2. When the product is too heavy, you need to consider fixing the paper card and blister with a staple at a certain position.
Blister card packaging refers to the blister heat sealing on the surface of the paper card with blister oil, common supermarket battery packages are mostly used in this category. It is characterized by the need for blister sealing equipment to encapsulate the product between the card and the blister.
It should be noted that:
1. the surface of the card must be over the blister oil (in order to be able to bond with the PVC blister together);
2. the blister can only be used with PVC or PETG sheet;
3. because the blister is only glued to the surface of the card, so it is not easy to encapsulate the product is not too heavy.
Double blister packaging refers to the use of two blisters to encapsulate the paper card and the product together in the form of packaging. It is characterized by the need for high-frequency machine will be double bubble shell sealing, low efficiency, packaging costs are higher, but the edge of the neat and beautiful, high-grade appearance of the product.
It should be noted that:
1. Blisters can only be used PVC and PETG film, otherwise it can not be heat-sealed or heat-sealed effect is not good;
2. High-frequency molds are good or bad to determine the quality of the edge of the double blisters.
The full meaning of half blister packaging is double blister packaging with products half exposed, which means that two blisters are used to encapsulate the paper card with the product, but the product is partially exposed outside the blister in the form of packaging, which is suitable for particularly long products. It is characterized by the need for manual scissors first bubble shell on the exposed product part of the cut, and then high frequency machine will be double bubble shell sealing, low efficiency, packaging costs are high, but the visual effect is good, and can meet the user in the supermarket picking goods, directly touch the product needs.
Issues that should be noted:
1. Easy to bring dirty products are not easy to use this type of packaging form;
2. In the blister cut holes should pay attention to the edges of the neat;
3. Blisters must be used in PVC or PETG hard sheet.
The full meaning of the external half-bubble shell packaging is that all the products are placed outside the double bubble shell outside the double bubble shell, the double bubble shell only encapsulates the paper card, and as the product head of the bottom of the bracket, the product and the bubble shell connected with plastic straps. It is characterized by the need for high-frequency machine will be double bubble shell sealing, and on top of the tying holes, the lowest efficiency, packaging costs are high, but can meet the user to touch the needs of the product.
Folding blister packaging refers to the double blister side of the blister molding together, folded to form a double blister after the bottom and face. It is characterized by the use of high-frequency sealing process can not be used, but in the blister shell in a certain position to do on the buckle to connect the double blister, if necessary, can also be hit on the staple, in the selection of materials can be used in PET hard sheet, and to achieve the purpose of environmentally friendly materials.
Issues that should be noted:
1. Because there is no high-frequency machine to seal the edge, the edge needs to be cut on the cutting machine with high quality to complete;
2. The fastening position should be in the right degree of elasticity.
Three-fold blister packaging is to fold the blister into three sides (front, bottom and back) to form one more bottom edge so that the product can stand on a flat surface. It is characterized by can not use high-frequency sealing process, but in the blister shell certain position to do on the buckle bit to connect the blister, if necessary, you can also hit the staple, in the selection of materials can be used in PET hard sheet, and to achieve the purpose of environmentally friendly materials for the purpose of large-caliber product packaging.
Issues that should be noted:
1. Because there is no high-frequency machine to seal the edge, the edge needs to be cut on the cutting machine with high quality to complete;
2. The fastening position should be in the right degree of elasticity.
Two, blister products related terms explained
Blister: a plastic processing process, the main principle is the spreading of plastic hard sheet heating and softening, the use of vacuum adsorption on the surface of the mold, after cooling molding.
Blister: The blister process is used to make the transparent plastic hard sheet into a specific raised shape of transparent plastic, cover the surface of the product, play a role in protecting and beautifying the product.
Blister tray: also known as plastic inner tray, using the blister process will be made of plastic hard plastic specific groove plastic, the product will be placed in the groove, play a role in protecting and beautifying the product.
Flocking blister: is a special material blister tray, will be ordinary plastic hard surface of a layer of fluffy material, so that the surface of the tray has a kind of fluffy feel, used to improve the grade of packaging products.
Blister molding: we often talk about blister molding, the use of blister molding machine will be heated to soften the plastic hard sheet adsorption on the surface of the mold, after cooling, the formation of concave-convex shape of the plastic.
Blister Cutting: After the plastic products after blister molding, through the punch press, the large sheet will be cut into individual products with a knife die.
Blister Folding: There is a type of blister packaging called insert card packaging, which requires the three sides of the blister to be folded to the back with a folding machine so that the paper card can be inserted into the folded edges in the next encapsulation process to form the insert card packaging.
Blister Heat Seal: It is a kind of blister encapsulation process, using the sealing machine to heat seal the paper card coated with blister oil on the surface with the blister to form a blister package, also called paper-plastic one-sided heat pressing.
Blister high-frequency sealing: is a blister packaging process, using high frequency high-frequency machine to produce high-frequency, the blister and the blister will be bonded together to form a double blister packaging, also known as high-frequency double-sided heat sealing.
Three, blister products related to the mold
1, plaster mold, glue mold
Gypsum mold is mainly used for yellow blister hand plaster powder; if you provide drawings, according to the drawings of data and requirements, gypsum materials, by milling machine and hand-crafted to complete the mold production; if you provide the physical object, it will be the first physical object with handmade clay to complete the mold of the contour of the vacuum molded into a vacuum cover, and then compounded! Gypsum mold, and the mold will be modified to complete; about 2-4 days; gypsum mold production is easy, shorter, conducive to the modification of the product packaging, the price is lower, but the degree of durability is lower, after a period of time to use, more vulnerable to damage, the transparency of the products produced by the poorer; mainly for the first board to confirm the outer packaging and the transparency of the product does not require a high degree of transparency.
Gum mold is usually in accordance with the requirements of product design, made of gypsum mold, with gypsum molds to produce a vacuum cover, with a special high-temperature resin material, injected into the vacuum cover, to be dry after the mold, drilling, grinding is completed; about 3-5 days; the resin mold price is higher than the copper molds and gypsum with a high level of price, but the degree of use of copper molds are comparable to the degree of durability, and can be solved copper molds and gypsum molds can not deal with some technical problems, such as product transparency, the first board confirmation, and the outer packaging of products requiring less transparency. It can solve some technical problems that copper mold and plaster mold can't deal with, such as the product wall appearing water lines, with this kind of mold can have a better effect; It is mainly applicable to electronics, toys, medicine, food, automobile accessories ...... and other special requirements of the product.
2, bakelite mold
The use of imported heating materials, high-temperature adhesive tape and high-quality copper nails to produce various types of bakelite molds, with uniform heating and sealing effect, etc., can be applied to various types of disc machine, Taiwan-made push-pull machine and automatic chain machine, mainly used in paper cards and blisters heat sealing packaging.
3, electrolytic copper mold
According to the product design requirements, made of gypsum molds, gypsum molds to produce a vacuum cover, the vacuum cover will be placed in the electrolytic cylinder, to be the surface of the 5-8MM thick, the mold will be injected into the gypsum, the injection of the vacuum air holes, and will be the surface of the mold polished smooth, can be used; about 3-5 days; is the type of metal molds, so it is more durable, with this type of molds produced by the appearance and transparency of the product is better. The appearance and transparency of the products produced by this kind of mold is better; the price of the mold is lower and the use is wider, it is the first choice of the mold in general; it is mainly applied to the products with higher requirements such as electronics, toys, stationery, cosmetics, automobile accessories and so on .......
4, alloy aluminum mold
According to the drawings or samples provided, the data will be entered into the computer, the computer lathe is automatically completed, and then manually complete the other such as holes, inverted position production, and the mold will be polished smooth, can be used; about 5-7 days; by the computer automatic lathe production, the use of ZL401, 6061 and 7075 and other aluminum materials, such as made, such molds High precision and the production of the product contour, angle is more beautiful, and the degree of durability is very high, the price also belongs to the first of the four types of molds; mainly for electronics, gifts, toys, medicine, stationery ...... and other appearance and size requirements of the product; in fact, the alloy aluminum mold is a large number of high-demand blister production of the first choice of molds, compared to In fact, the alloy aluminum mold is the preferred mold for high volume and high demand, which has the advantages of more durable, time-saving and power-saving, high production efficiency and low scrap rate compared with plaster mold, copper mold and rubber mold.
5, heat sealing mold
Heat sealing mold using high-quality copper or aluminum alloy, mainly for PET high-frequency heat sealing difficult problem; surface treatment using Teflon, for PET adhesion mold; crimping pattern using computer engraving, clear pattern, uniform size, according to the user's requirements of all kinds of custom patterns.
6, high-frequency mold
High-frequency mold material for high-quality pressure line, the cutter for the laser knife, cutting edge smooth without any burr edge torn material; crimping pattern using computerized engraving, pattern clear, uniform size, according to the user's requirements for all kinds of customized patterns; aircraft holes according to the customer to provide the actual samples or drawings and production; mainly used for the double blisters (PVC or PETG) of the fusion welding.
7, knife mold, punching mold
Mainly used for punching and punching holes (round holes, plane holes and butterfly holes)
Note: Not to consider the knife mold and punching molds, blister production molds, the lowest cost of gypsum molds, followed by plating of copper molds, the most expensive is the aluminum mold. The molds are drilled with small holes for vacuum adsorption of thermalized hard sheets to form the blister product.
Four, blister products related production and processing equipment
Mainly (automatic or semi-automatic) blister molding machine, blister plate machine, blister punching and cutting machine, blister high-frequency machine, blister sealing machine, heat shrinkage machine, (automatic) blister folding machine and (automatic) blister perforation machine and so on.
Second, the terminology related to blister products explained
Blister: a plastic processing technology, the main principle is to spread the hard plastic sheet heating and softening, the use of vacuum adsorption on the surface of the mold, after cooling molding.
Blister: The blister process is used to make the transparent plastic hard sheet into a specific raised shape of transparent plastic, cover the surface of the product, play a role in protecting and beautifying the product.
Blister tray: also known as plastic inner tray, using the blister process will be made of plastic hard plastic specific groove plastic, the product will be placed in the groove, play a role in protecting and beautifying the product.
Flocking blister: is a special material blister tray, will be ordinary plastic hard surface of a layer of fluffy material, so that the surface of the tray has a kind of fluffy feel, used to improve the grade of packaging products.
Blister molding: we often talk about blister molding, the use of blister molding machine will be heated to soften the plastic hard sheet adsorption on the surface of the mold, after cooling, the formation of concave-convex shape of the plastic.
Blister Cutting: After the plastic products after blister molding, through the punch press, the large sheet will be cut into individual products with a knife die.
Blister Folding: There is a type of blister packaging called insert card packaging, which requires the three sides of the blister to be folded to the back with a folding machine so that the paper card can be inserted into the folded edges in the next encapsulation process to form the insert card packaging.
Blister Heat Seal: It is a kind of blister encapsulation process, using the sealing machine to heat seal the paper card coated with blister oil on the surface with the blister to form a blister package, also called paper-plastic one-sided heat pressing.
Blister high-frequency sealing: is a blister packaging process, using high frequency high-frequency machine to produce high-frequency, the blister and the blister will be bonded together to form a double blister packaging, also known as high-frequency double-sided heat sealing.
Three, blister products related to the mold
1, plaster mold, glue mold
Gypsum mold is mainly used for yellow blister hand plaster powder; if you provide drawings, according to the drawings of data and requirements, gypsum materials, by milling machine and hand-crafted to complete the mold production; if you provide the physical object, it will be the first physical object with handmade clay to complete the mold of the contour of the vacuum molded into a vacuum cover, and then compounded! Gypsum mold, and the mold will be modified to complete; about 2-4 days; gypsum mold production is easy, shorter, conducive to the modification of the product packaging, the price is lower, but the degree of durability is lower, after a period of time to use, more vulnerable to damage, the transparency of the products produced by the poorer; mainly for the first board to confirm the outer packaging and the transparency of the product does not require a high degree of transparency.
Gum mold is usually in accordance with the requirements of product design, made of gypsum mold, with gypsum molds to produce a vacuum cover, with a special high-temperature resin material, injected into the vacuum cover, to be dry after the mold, drilling, grinding is completed; about 3-5 days; the resin mold price is higher than the copper molds and gypsum with a high level of price, but the degree of use of copper molds are comparable to the degree of durability, and can be solved copper molds and gypsum molds can not deal with some technical problems, such as product transparency, the first board confirmation, and the outer packaging of products requiring less transparency. It can solve some technical problems that copper mold and plaster mold can't deal with, such as the product wall appearing water lines, with this kind of mold can have a better effect; It is mainly applicable to electronics, toys, medicine, food, automobile accessories ...... and other special requirements of the product.
2, bakelite mold
The use of imported heating materials, high-temperature adhesive tape and high-quality copper nails to produce various types of bakelite molds, with uniform heating and sealing effect, etc., can be applied to various types of disc machine, Taiwan-made push-pull machine and automatic chain machine, mainly used in paper cards and blisters heat sealing packaging.
3, electrolytic copper mold
According to the product design requirements, made of gypsum molds, gypsum molds to produce a vacuum cover, the vacuum cover will be placed in the electrolytic cylinder, to be the surface of the 5-8MM thick, the mold will be injected into the gypsum, the injection of the vacuum air holes, and will be the surface of the mold polished smooth, can be used; about 3-5 days; is the type of metal molds, so it is more durable, with this type of molds produced by the appearance and transparency of the product is better. The appearance and transparency of the products produced by this kind of mold is better; the price of the mold is lower, the use is wider, it is the first choice of the mold in general; it is mainly applied to the products with higher requirements such as electronics, toys, stationery, cosmetics, automobile accessories and so on .......
4, alloy aluminum mold
According to the drawings or samples provided, the data will be entered into the computer, the computer lathe is automatically completed, and then manually complete the other such as holes, inverted position production, and the mold will be polished smooth, can be used; about 5-7 days; by the computer automatic lathe production, the use of ZL401, 6061 and 7075 and other aluminum materials, such as made, such molds High precision and the production of the product contour, angle is more beautiful, and the degree of durability is very high, the price also belongs to the first of the four types of molds; mainly for electronics, gifts, toys, medicine, stationery ...... and other appearance and size requirements of the product; in fact, the alloy aluminum mold is a large number of high-demand blister production of the first choice of molds, compared to In fact, the alloy aluminum mold is the preferred mold for high volume and high demand, which is more durable, time-saving and power-saving, with high production efficiency and very low scrap rate compared with the plaster mold, copper mold and rubber mold.
5, heat sealing mold
Heat sealing mold using high-quality copper or aluminum alloy, mainly for PET high-frequency heat sealing difficult problem; surface treatment using Teflon, for PET adhesion mold; crimping pattern using computer engraving, clear pattern, uniform size, according to the user's requirements of all kinds of custom patterns.
6, high-frequency mold
High-frequency mold material for high-quality pressure line, the cutter for the laser knife, cutting edge smooth without any burr edge torn material; crimping pattern using computerized engraving, clear pattern, size uniformity, can be customized according to user requirements of all kinds of patterns; aircraft holes according to the customer to provide the actual samples or drawings and production; mainly used for the double blisters (PVC or PETG) of the fusion welding.
7, knife mold, punching mold
Mainly used for punching and punching holes (round holes, plane holes and butterfly holes)
Note: Not to consider the knife mold and punching molds, blister production molds, the lowest cost of gypsum molds, followed by plating of copper molds, the most expensive is the aluminum mold. The molds are drilled with small holes for vacuum adsorption of thermalized hard sheets to form the blister product.
Four, blister products related production and processing equipment
Mainly (automatic or semi-automatic) blister molding machine, blister plate machine, blister punching and cutting machine, blister high-frequency machine, blister sealing machine, heat shrinkage machine, (automatic) blister folding machine and (automatic) blister perforation machine and so on.