Foil paper for packaging. foil packaging
Aluminum foil came into commercial use in 1913 (Life Savers and their shiny metal packaging). Although they began to produce it back in 1903 in France. Since then, the material has been widely used for a variety of purposes, from food packaging to spacecraft insulation.
Foil is often used in Food Industry as a packaging material due to its protective properties. The material does not absorb fat, oil, does not allow air to pass through. But for specific types products use a certain type of packaging. For example, for products containing oil or fat, as well as for ice cream, meat, tea, laminated is used; for medical preparations, a blister is used; for fish, sweets, foil-coated cardboard is used, on which offset printing is possible.
Aluminum foil is safe to use, no harmful substances are released in contact with food. Its chemical stability in contact with food depends on the composition of the food. In some cases, an internal foil coating is necessary. The material provides protection for the product from impacts external environment(light, dust, moisture), damage during transportation and storage, keeping freshness and taste for several months without refrigeration.
Foil packaging is suitable for semi-finished or ready-to-eat food, in such a package you can cook food in the oven.
How aluminum foil is made
Aluminum plates, cast from molten aluminum, are rolled in a rolling machine to the required thickness, which is controlled by sensors. The sheets are then rolled up and transferred to a cold rolling machine. On the one hand, the thin material is shiny, and on the other, it is matte. The brilliance of one side is given by the final rolling of the sheet. At the final stage of rolling, two sheets of foil pass under the roller at once. After rolling, the sheets are separated, and it turns out that the inside of each sheet is matte, and the outside is shiny.
Packing thickness affects flexibility. For example, semi-rigid is made from foil 0.05-0.2 mm thick, and flexible - 0.006 to 0.060 mm thick.
Packaging can be in the form of packages, bags, in which bulk materials can be packed, and roll packaging is suitable for packaging using packaging machines.
Kinds
Laminated foil is a material of glued paper and aluminum foil. Gluing the layers is carried out using melted microwax, glue or polyethylene, which gives the finished product flexibility. The outside is covered special composition that allows printing. Distinctive characteristics are the impermeability of gas, moisture and steam, non-toxicity, opacity, the ability to retain the given shape. Thanks to the paper layer, the packaging is more resistant to mechanical stress. The material is used for packaging cottage cheese, sweets, confectionery and non-food items. Due to its excellent barrier properties, laminated foil is suitable for a wide range of products.
Foil is used as caps for sealing holes in juice boxes, plastic bottles or dairy cans. She compresses the top of the container. In addition to protection against external influences (ultraviolet, moisture, dirt, oxygen, odors), such a cover provides protection against unauthorized access to the contents.
aluminum cans- light but stable containers for drinks. The material is resistant to corrosion, does not let in sunlight, moisture, oxygen, the product inside remains completely sealed. After use, they can be recycled.
lacquered foil with a protective coating and heat seal is used for packaging processed cheese with the possibility of rotogravure printing. Its thickness is 20-25 microns. Lacquer is applied on one side, printing is applied on the other side with a primed surface.
Zip packages (zip packages, gripers) foil
foilzippackages is a complete protection of your products from smell, light and moisture. The packages are equipped with a special lock that allows you to repeatedly open and close the package.
If you require ziplock foil bags special modification, size or color, we will definitely produce them. Your order for any package modifications will be completed within 3 days.
Photo Zip foil packages
Reasons to buy foil zip bags
- You need to protect your products from various external influences.
- You want to ensure the contents are sealed.
- The ability to reuse packages is important to you.
Modifications and features of foil zip bags
The main feature of the bags is the foil layer, which gives the bags special strength and protective properties. foil bags gas tight and waterproof. They are resistant to acid, alkali and any other chemically active substances.
To improve sealing, bags are made with a double reinforced zip lock (ziploc). The lock works on the principle of a zipper. The plastic edging easily enters the recess, due to which high tightness and the possibility of repeated use are ensured.
Besides, foil zip bags can be equipped with opening control (perforation above the locks). You or the client will always be aware of whether the package with the contents has been opened or not.
The foil layer will protect the contents of the zip package from most external influences
Zip packages Made from high pressure polyethylene (LDPE). In production, only primary raw materials are used, which makes it possible to use bags with food products.
PVD is a soft, elastic and dense material. Unlike HDPE, it does not have a rustling effect, and its surface is glossy. Due to the ability to set almost any density during production, LDPE can have high strength and resist physical impact well.
A foil layer is applied directly onto the LDPE film. Only safe polyethylene comes into contact with the contents.
Density foil zip bags can vary from 25 µm to 120 µm, depending on the size and expected load on the package.
The width of the packages is from 4 cm to 70 cm. The length (height) is from 4 cm to 50 cm. The accepted marking of the package sizes is W (width) x L (height). Example: 10×15 cm, where 10 is the width, 15 is the height.
Foil zip bags come in a variety of sizes.
Examples of standard sizes: 10x15, 7x10, 15x20, 20x30 cm.
Examples of non-standard sizes: 20x20, 20x50, 30x20 cm.
Bottom foilzippackage manufactured flat. It can be with a bottom seam (solder) or with a bottom fold (folds at the bottom), a bag with such a bottom, when filled, becomes stable. The package itself is flat, the top is even.
The weight packages from 2 g to 45 g, depending on the size and density of the material.
foil bags withzipcastle We pack in packs of 100 pieces. We pack packs in boxes or bags from 1000 to 15000 pieces, depending on the size of the bags. At the request of the client, we can carry out any conditions for packaging.
At the request of the client, we will carry out any packaging options for foil zip bags
All packages manufactured by us meet the requirements of GOST for LDPE film (16337-77).
On the market foil packages with locks, many companies try to deceive their customers.
The following deception is most common among competitive companies. Let's say you order 200,000 pieces zip packages from LDPE with a foil layer, popular size 10×15 cm and a density of 60 microns. Packing in bags of 8000. How do unscrupulous companies act? They are silent about a number of important package characteristics, such as: density, number of packages in layers, material from which it is made and size.
The customer was to receive 25 bags of 8,000 bags. In fact, he receives 25 bags, but 7900 bags each, only 197500 pieces, 2500 less! In addition to this, the packages turn out to be with a reduced density - 54 microns, instead of the declared 60 microns. As part of a large order, this is a huge difference in price, not to mention that the packages will be less durable.
Single weight standard package from LDPE with a lock 10 × 15 cm with a density of 60 microns = 9 g. The weight of the entire batch is 9 g × 200,000 pieces = 1800 kg. The average market price for 1 kg of raw materials = 370 rubles. The cost of the entire batch is 370 rubles. × 1800 kg = 666,000 rubles.
When ordering foil zip bags from us, you are sure to get the withered characteristics
The weight of the sent package is 10 × 15 cm with a density of 54 microns = 8.4 g. The weight of the entire batch sent is 8.4 g × 197500 pieces = 1659 kg. The price of the sent batch is 1659 kg × 370 rubles. = 613830 rubles.
666000 rub. (client paid) - 613830 rubles. (for such an amount the goods were delivered) = 52170 rubles. the client eventually lost.
Always check your supplier and if you find such a fraud, contact us, this is unacceptable with us.
Scope of foil zip bags
Foil grippers are suitable for packaging and storage of medicines, microcircuits, seeds, powders and food products that are sensitive to moisture, oxygen and ultraviolet radiation.
Due to such properties as gas impermeability, foil bags are used in the transportation of chemical compounds, liquids and strong-smelling substances.
Foil bags have found application in the medical and chemical industries
Any product in grippers taken more seriously by the buyer. The content seems to be of better quality than its counterparts in regular packages. The level of trust in the brand increases.
For complete convenience when using zip-lock bags, we recommend leaving 1 cm between the product and the edges of the bag. This will make it easier to close and open the package, and the contents will not clog.
If you have fat-containing products or you need to keep the temperature of the product, they are ideal. The packaging industry has long known the protective properties of foil. You just have to choose the size of the bag and the number of layers.
The range of presented foil bags is available in our warehouse. If suddenly you did not find the modification, size or color you are interested in, we are ready to produce the required quantity in the desired size, color and modification within a period of 3 days. In addition, we apply a logo from one color to full color in the shortest possible time.
Photos of foil paper bags
Reasons to buy a foil kraft bag
- Your fat-containing products require certain storage and transportation conditions.
- You want to provide high protection of products against all external factors.
- You need to maintain the temperature of your food products.
Modifications and features of paper bags with foil
There are two options for using foil in kraft bags - foil lamination of the paper layer of the bag (foiling) and making a foil liner. Small kraft bags for food products are usually laminated with foil, and liners are used in larger kraft bags.
We can make a foil insert, or foil the paper layer of a kraft bag
In addition to the obvious advantages, the foil protects the contents of the bag from oxides, vapors and gases, microorganisms, light and ultraviolet radiation. The foil has anti-corrosion properties, it is hygienic, non-toxic and does not absorb any odors. All this ensures the preservation of the quality of products and excludes their spoilage.
The density of paper bags varies from 45 to 120 g/m² depending on the paper manufacturer and application. The thickness of the foil or lamination layer is from 8 microns, which is equivalent to the protective properties of polyethylene with a thickness of 200-250 microns (protective properties in relation to fat, air, mineral and vegetable oils).
The length (height) of foil bags is from 8 to 54 cm. The width is from 4.5 cm to 32 cm. The width of the bottom (depth) is from 3 to 12 cm. It is possible to manufacture bags according to individual sizes upon your request.
Color foil paper bags, as a rule, brown or white (bleached), but the option of 100% printing of the package in any color is possible.
Foiling kraft bags will help solve the problems of fat-containing products
The top of the bag can be ribbed or straight.
Kraft paper is characterized by higher tensile strength and lower stretch in the longitudinal direction (MD) than in the transverse direction (CD). The tensile strength of the paper varies from 2.6 to 7 kN/m MD and from 1.6 to 4.5 kN/m CD, depending on the weight of the paper. The foiling of the paper layer and the foil liner greatly improve the strength characteristics of the kraft bag.
Foiling the kraft bag improves its strength and load capacity
If necessary, foiling and foil liner can be combined with lamination of HDPE, LDPE and PP of individual layers of the kraft bag.
After packaging the products, the mouth can be tied with ropes, closed with seals and ties. We recommend using bag sewing machines (mzm) , they allow stitching from 100 to 2000 bags per shift.
Based on the specifications of your products, in accordance with GOSTs and SanPin standards, we will select the required type of kraft bag with foil.
Foil bags increase shelf life and maintain product quality
Many manufacturers, in order to increase the shelf life of products, have to add various preservatives and stabilizers to them, which ultimately worsens the taste and environmental performance. Foil, having high barrier properties, increases the shelf life of goods in a paper bag without the addition of chemical preservatives.
Scope of foil paper bags
Paper bags with foil keep the internal temperature well, so they are widely used in the field of fast food. Packing paper bags with a foil layer are used for packaging ready-made pastries, barbecues, grilled chickens and cooking.
Thanks to the protective properties of the foil, it is possible to store and transport products with a high fat content in bags: butter, cottage cheese, meat products. Many people pack children food, nutritional supplements, tea, coffee and tobacco products.
Foil bags are a good alternative to HDPE, PVD and PP lamination
Foil-lined bags can be used to pack oily chemicals and oily equipment.
For many of our clients foil paper bags act as an alternative to kraft bags with polyethylene and polypropylene lamination.
If you are looking for bags for frozen fish, pay attention to sandwich bags, they provide good vapor barrier and protect against UV rays, thus preventing the oxidation of fats in frozen fish and seafood.
Printing on paper bags with foil
Kraft paper provides unlimited possibilities in advertising promotion goods. Seal on such bags looks bright and presentable. Surface foil paper bag can be fully sealed, topped with bleached kraft, and glossed with lamination.
Sometimes it's hard to determine if your products need foil paper bags or maybe get by with regular kraft bags. We always advise our customers to think about the quality of the product. If you want your products to reach the end consumer safe and sound, the choice in favor of foil is obvious.