Besides vacuum packaging bags, a large number of aluminum foil bags are used for food packaging business at present. This is also the food vacuum bag with positive aspects. When there is no special prerequisite of the meals packaging, the food suppliers use normal vacuum packaging bags. However, some food has particular demands for food packaging. Such as candy, drinks, cooked food need the vacuum packaging bags and aluminum foil bags with special purpose in the deals.

The aluminum foil bag has another name which is called pure aluminum bag. The advantages of aluminum foil bags are: the biggest attribute with the aluminum foil bag is always to avoid light, that’s, the mild transmittance could be the lowest. Some products are fragile mild aluminum foil bag, such as some light-sensitive drug. In addition, the aluminum foil is pervious to mild, in order to be packaged with all the aluminum foil bags, such as some light sensitive medications and so on. Aluminum foil is not pervious to mild and has a good reflective efficiency. Also, the aluminum foil bag has much better printing impact. The aluminum foil bag has stiff and sleek form.

Aluminum foil bags have very good efficiency of blocking air. With anti-oxidation, it can be capable to get waterproof and moisture-proof. More importantly, it’s very good functionality of resistance to blasting, puncture and tear. Owning the resistance to high temperature, lower temperature and oil, it’s got excellent efficiency of maintaining sweet. It is really poisonless and tasteless, which accords with the meals and drug packaging wellbeing expectations. What is more, it is really the overall performance of the large heat sealing, softness and good separation.

Applications of Aluminum Foil Bags for Food Packaging

The main areas of the aluminum foil bags have 4 sorts: the first one may be the packaging of chocolate and candy. Recently, chocolate almost to the use of aluminum foil packaging. A second possibility is the actual food and cooked food packaging, these kinds of instant noodles and nearby property meals, etc. 3rd may be the dairy merchandise packaging. Nowadays all of the milk powder generally employs aluminum-plastic composite packing from the aluminum foil bag. The liquid dairy items mostly make use of aluminum foil bags. Forth may be the use as coffee packaging bags and tea packaging bags.

www.chinaunipak.com is a professional soft packing manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology. The factory area covers more than 10,000 square meters, which is located in Liyatang District, Lincun, Tangxia Town, Dongguan City, Gangdong Province, China, which is closed to Shenzhen City.

Requirements to Technique

The sealing temperature settings of stand up pouch bags should take in consideration of the performance, the thin film thickness, the heat seal pressure frequency, and the size of the heat seal area of the heat seal material. When the same site suffers repeated hot pressure, the heat sealing temperature can be appropriately reduced.
During heat sealing, add a suitable pressure on the sealing knife in order to make the thermal cover material laminated in a molten state. But if the pressure is too large, the molten material will be cut, which not only affects the flatness of the stand up pouch bags, but also makes the sealing edge brittle and lower its heat sealing strength.
The heat sealing time not only is relatively with the sealing temperature and sealing pressure, but also attaches to the sealing materials, heating methods and other factors. So different stand up pouch products should be tested prior to production to adjust the technological parameters.
Sealing knife heating methods can be divided into single knife heating and double knives heating. Double knives heating temperature is lower than the single knife heating temperature.

Technological Procedure 

Process Preparation
Install molding template in accordance with the stand up pouch bag shape requirements and process indicators, such as horizontal, bottom, and enhanced sealing knife, as well as the bag  bottom and punching device; put on the slitted composite film to the bag making machine, aiming at the cursor and the patterns; adjust the temperature of the edge sealing and the bottom sealing knife, type the length of the bag and the bag making speed into the computer, and adjust the up and down heat sealing knife to make it coincided; install the bag bottom film, adjust the molding, folding and punching position, and check if the round holes at the bag bottom meet the requirements ; adjust the enhanced heat sealing knife for the compaction on the location where the four layers interchange; adjust the position of the cutting knife, the edge cutting and the edge material rolling machine; after tuning on the machine, test and adjust the bottom heat sealing position and the punching position, and adjust the horizontal and vertical sealing knifes until the stand up pouch products meet the requirements.

Process Key Points

The tension of basement film and main film should be compatible; the tension of the basement film can not be too high, otherwise it will easily lead to the deformation of the bottom round holes, affecting the heat seal strength and flatness of the stand up pouch bag bottom.
The bag making speed and the heat sealing time should be adjusted. If the bag making speed is too fast, the heat sealing time will be reduced and the heat seal strength will be low; if the bag making speed is too slow, the heat sealing time will be long, the bag will be easily burned, and the heat sealing site will be brittle and fragile.

Chinaunipak.com is a professional wholesale packaging bags manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology.

As you may think, that plastic packaging of the food packaging and pockets has become very talked-about with the industrial metals market. This can be seen in some sensible look hand bag, transfer and save generated in Asia, different things, you need to complete personal and the whole move from an industrial plant or industrial plant grocery guarantee. This is a particularly convenient to carry food home. The node that comes in several of today's plastic packaging hand bag solely contributes to the comfort each step of the means.

Produce isn't the sole quite meals that a lot of individuals store in look hand bag. Little things squared measures the higher mortgage, once they square measure stored in  zipper bags and biodegradable food bags. In addition, candy and chewing gum once placed inside the bag is very obvious, but also protect your status and the different pollutants to take action.

You may have even noticed that different styles of things have returned already in a plastic packaging bags which are reclosable. The explanation is often, many manufacturers have taken to get customers to choose something that will simply be resealed to keep the fabric clean and safe sign. You can discover reclosable look hand bag getting used in an exceedingly type of sectors of late. Needless to say, usually in the manufacture of bags, but some domestic talent more emphasis on the individual but also to get them all their garden truck bay. Next, you just look at some of the makeup, you can also be found at the counter of plastic packaging handbag introduction.

Automotive sector typically return jacket look hand bag, closed the devastating effects of excessive state, but also contains all to smaller areas, they will not be missing. It is very indifferent, they are what kind of market, you touch on the most convenient interval squared measures are sometimes simple, reasonable handbag plastic packaging for different purposes.

The Concept of Aluminum Foil Bags
Aluminum foil bag typically refers to the aluminum plastic composite vacuum packing bag. Such products are suitable for moisture proof, keeping out of the sun and vacuum packaging of large-scale precision machinery and equipment, chemical raw materials, as well as medical intermediates. Aluminum foil bags mostly adopt four-layer structure, with good water proof and oxygen isolation function. They are limitless, and you can custom make packing bags of different sizes and styles. Besides, they can be made into flat bags, solid bags, bellow bags and many other styles. Aluminum foil bags are required to be examined by the GB and ASTM standards. They meet the requirements of environmental protection (available in third-party test report), and comply with most stringent environmental packaging materials standards of the European Union and the North American.

Aluminum Foil Bag Are Also Called Pure Aluminum Bags
Material: PET/NY/AL/PE (General packaging), PET/NY/AL/CPP (high temperature cooking)
Thickness: 70~180 Micron 
Bag Shape: Three-side-seal bag, Self-zipper bag, Yin-Yang bag
Features: PET- sound printing effect, NY- low oxygen permeability, AL- strong barrier property and light proof, PE-general packaging inlayer, CPP- high temperature cooking inlayer 

Product Performance
Product characteristics appearance of aluminum foil bags (anti-static aluminum foil bags, aluminum foil packaging bags): opacity, silvery white, luster, good barrier property, heat sealability, covering optical activity, high temperature resistance, low temperature resistance, oil resistivity, fragrant keeping performance, non-toxic, odorless, flexibility and other features. Product structure: PET/AL/PET/PE. Aluminum foil bags can be manufactured according to the requirements of different thickness and different composite materials. The storage environment temperature is less than or equal to 38 ℃, and humidity is less than or equal to 90%. General product specifications: thickness is between 0.10MM to 0.14mm, three-side-seal, and edge banding 10mm. The product specification can be customized according to customers' needs.

Range of Application:
(1) They are applicable to all kinds of circuit boards, electronic products, precision mechanical components, consumer goods, industrial products packaging, such as PC boards, IC integrated circuits, electronic components, various types of LED SMT SMD, lamp packaging, precision hardware, auto parts and other packaging.
(2) They are also suitable for aluminum bags food packaging: favor, quality, taste and color keeping of rice, meat, dried fish, aquatic products, cured products, roast duck, roast chicken, roast pork, frozen foods, ham, cured meat products, sausages, cooked meat products, pickles, sweetened bean paste, seasonings. 

Chinaunipak.com is a professional soft packing manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology. The factory area covers more than 10,000 square meters, which is located in Liyatang District, Lincun, Tangxia Town, Dongguan City, Gangdong Province, China, which is closed to Shenzhen City.

In recent years, along with the deepening of plastic industry and the technological innovation degree of packaging machinery industry, soft packaging technology has been rapidly developed. Soft packaging forms develop from flat shaped bags to special shaped bags and stand up pouch bags; the sealing methods are also diversified, such as heat sealing, zipper closure. Stand up pouch bags and special shaped bags gain the popularity among with end consumers and many downstream customers in the market by excellent shelf appeal, which have been widely used in the cosmetic industry and food packaging, becoming new highlights in soft packaging area, and reflecting a trend of replacing the traditional plastic bottles and glass bottles. There are many types of stand up pouch bags currently on the market, such as helical seal square bottom bags, and fold corner bags. Here normal three-side-seal fold corner stand up pouch bags will be taken as an example to discuss production technology and common quality problems solution of stand up pouch bags.

First, Production Technology
The biggest difference between three-side-seal fold corner stand up bags and ordinary flat bags lies in that the oval-shaped bottom bag requires secondary heat seal. Core of the entire production technology and equipment requirements are embodied in the bag strength, tightness and heat seal the end of symmetry. To produce high quality stand up pouch bags requires attention to the punch, dropping bag end, heat sealing, and other aspects. Particularly its four-storey and two-storey parts of the heat are extreme due to low heat seal strength and rupture. Thus heat seal cutter should be assembled to strengthen the local heat sealing.

1. Requirements for Materials
Because stand up pouch bags have high mechanical performance requirements for materials, they generally use composite membrane with more than three layers, with the following requirements to external, middle and inner material:
External material
External layer of printed materials, currently used, stand up pouch bag among general BOPP film, printing materials, BOPET, BOPA, high mechanical strength, high barrier properties of thin films. To select material based on usage, such as selection of BOPP, Matt BOPP film, are used to wrap solid products choice of BOPET or BOPA film used for packaging liquid products.
Middle-level materials
Middle managers generally opt for high strength, high barrier materials, BOPET, BOPA, VMBOPET, aluminum foil, etc.
Inner material
Inner seal material, generally use the CPE or OPE, CPP has low heat seal performance of thin film and want to have good health and antistatic properties.

2. Requirements for Devices
Stand up pouch bags have special requirements on the structure of bag making machines. In addition to the roll device, double pendulum, sealing device, cutting unit, tension device, sensor devices of the three-side-seal bag making machine, there is an auxiliary device providing basic materials for stand up pouch bags.

Chinaunipak.com is a professional plastic packaging bags manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology.

There are varieties of coffee packaging bags and materials. It's not correct to think that coffee packaging bags are colorful small bags you usually see. In fact, coffee packaging world is amazing. 

Classifications
According to the supply forms, coffee packaging bags can be basically divided into three main categories, green coffee bean export packaging, roasted coffee beans (powder) packaging, as well as instant coffee packaging.

Green Coffee Bean Export Packaging

Sacks are commonly used for green bean packing. When different coffee producers in the world export coffee beans, they usually use the 70 kg or 69 kg sacks (only Hawaii takes 100 pounds as the coffee packing unit). In addition to the printed country names, the coffee organizations, coffee producers, production area names, the most typical patterns of the countries are also printed on the coffee sacks. To coffee fans, these seemingly ordinary product sacks become footnote with the interpretation of the coffee culture. They even have become collections for many coffee lovers. This type of packaging can be called the most original coffee packaging bags.

Roasted Coffee Beans (Powder) Packaging

Roasted coffee beans (powder) packaging is the most diverse among coffee packaging forms. Because the coffee beans will naturally produce carbon dioxide after roasting, direct packaging is easy to cause damage and prolonged exposure to air will cause the loss of aroma and lead to the decline in quality of oils and aromatic constituents of coffee due to oxidation. Thus, coffee beans (powder) packaging is particularly important, which is now generally divided into bag packaging and can packaging.
(1) Bag Packaging
Bag packaging is generally divided into: non-airtight packaging bags,vacuum packaging bags, check valve packing bags, and pressurized packaging bags.
Non-air tight packaging is in fact a temporary package, only for short time storage.
Vacuum packaging needs to pack coffee beans after putting them aside for a period of time in order to prevent damage to packaging from carbon dioxide. This type of packaging can store coffee beans for 10 weeks or so.
Check valve packing allows removing of carbon dioxide but stops external gas coming in, guaranteeing that the coffee beans will not be oxidized but not preventing the loss of aroma. 
Pressurized packaging can guarantee that the coffee beans will not be oxidized, at the same time ensure that the aroma will not lose. It has sufficient strength to ensure the packaging will not be damaged by pressure, storing coffee beans for up to two years.
(2.) Can Packaging
Cans are usually metal and glass, with plastic lids for seal.

Instant Coffee Packaging
Instant coffee packaging is relatively simple, commonly applying small bags. Currently instant coffee is packed in spears, with a packing box outside. Of course there are can packaging for instant coffee on the market.

Chinaunipak.com is a professional soft packing manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology.

If you know the technology is effective hot and cold meals, it is clear that once you get around burning up, refrigerator and reduce food. How many times have you ever taken a rich cook out of your refrigerator to find its refrigerator used to find them dry and white streaked? The correct dietary box and a couple of professional knowledge, you will be able to effectively lock you early meal and prepared extremely and maintain its nutritional value. The text display your skills, you need to know to effectively lock the meal.

We all like to look for discounts and store freezers. Once 12 months have been completed, or is coming back to an end, and you want to save the entire summer, those beautiful, so rich quantity of vegetables. Skills of hot and cold meals, you will take care of your investment, your family's nutritional and enjoy meals.

What is fridge burn? Spend of frozen ice deposits. Once meals get frozen, lots of water substances inside the meals form ice deposits. These deposits will move through water loss, which may mean out of the meals and toward the walls of your refrigerator. This reduces the water dried up meals. Meals cells of oxygen to enter the broken water off, leading to a decline in color, nutritional value and taste. If the temperature is irregular out of the water can be thawed and re-frozen, ice accretion. Quick-frozen for dietary easily eat, but often tasteless, and therefore the structure tasteless. So, you can do something to prevent the burning of refrigerator?

1. Let your refrigerator below zero F and there is no reason not to open it.

2. Do not place hot food in the fridge. It will lead to extraordinary heating and refrigerator, burning up what could be done.

3. Freeze a small number, no more than one pound each use food brand fabrics and date!

4. Firmly carry a heavy plastic to cover the meat, then in aluminum foil bags, and then fill in the sealed storage container.

5. Blanche and completely strain the vegetables, then loaded resolutely hate space for storage container, "burp" the air. Take care to keep enough space for development during cold, and shut off the top with hefty nasty wrap before you snap on the lid.

6. With the top of the broth, the development of space, cool. Sealed packaging with stand up pouch bags or others before covering and cold, even in the top area of the zip lock.

7. If your refrigerator is completed half the storage space and water containers, and the development of regional and locked. This balances the temperature of the refrigerator.

Chinaunipak.com is a professional plastic packaging bag manufacturer, which is located in Liyatang District, Lincun, Tangxia Town, Dongguan City, Gangdong Province and closed to Shenzhen City.

Stand-up pouch packaging is replacing traditional flexible packaging
Stand-up pouches flexible packaging are mainly used in juice drinks, sports drinks, bottled drinking water, suck jelly, condiments and other products. In addition to the food industry, the applications in some cleaning products, cosmetics, medical supplies and other products have gradually increased. Stand-up pouch packaging pose color for a variety of packaging world, clear and distinctive patterns upright on the shelves, reflects the excellent brand image, and more likely to attract the attention of consumers, which adapt to the modern selling trend of supermarket sales. Once the customers use, they will know the beauty of them, so they are favored by the majority of consumers. With the stand up pouch packaging advantages are understood by consumers, and with the social environmental awareness continues to strengthen, replacing alternative bottles, drums, and no longer sealing traditional flexible packaging with the stand-up pouch packaging is bound to become a trend.

Stand up pouch types:

1. Ordinary stand up pouch
That is the general form stand-up pouch, using the form of four-edge sealing, not be re-closed and repeat being opened, this kind of stand-up pouches are generally used in industrial supplies industry.

2. Stand-up pouch with suction nozzle
Standing pouch with nozzle is more convenient to dump or draw the contents, at the same time can be re-closed and repeatedly open, which can be considered as a combination of standing pouch with ordinary bottle. Such stand up pouch bags are generally used in daily necessities, used to hold drinks, shower gel, shampoo, ketchup, cooking oil, jelly and other liquids, colloids, semi-solid products, such as the famous CiCi, etc.

3. Stand up pouch with zipper
Stand-up pouch with zipper can also be re-closed and repeatedly opening, because using zipper form and not closed and closed strength is limited, so this form is not suitable for packaging liquid and volatile substances. According to the edge sealing, it is divided into four-edge sealing and three-edge sealing two types. The four-edge sealing means the product packaging has a layer of ordinary edge at zipper closure before being shipped out of the factory, we should first tear ordinary edge when to use, and achieve repeated closure and open by the zipper, this approach solves the disadvantage of small zipper edge strength being not conducive to transport. Three edge sealing directly uses zipper edge for sealing, which is generally used to hold lightweight products. The stand-up pouch with zipper is generally used for packing some lightweight solid, such as candy, cookies, jelly, four-edges stand-up pouches can also be used for packaging rice, cat litter and other heavier products.

4. Imitation mouth standing bag
The imitation standing bag combines the convenience of stand-up pouch with suction nozzle and cheap of stand-up pouches. I.e. to realize nozzle function with the shape of the bag body itself. Imitation mouth-standing bag cannot be repeated closure or sealing, therefore, they are generally used in beverages, jellies and other one-time use liquid, colloidal, semi-solid products packaging.

5. Special-shaped stand up pouch
I.e. According to the packaging need, the new stand up pouches changes and produced on the basis of conventional bag types, such as waist design, the bottom deformation design, handle design, etc. It is the main value-added development direction of the current stand-up pouch.

With social progress and the raised level of people's aesthetic as well as the increased competition of industry, stand-up pouch design printing is becoming more and more colorful, its manifestations are more and more, the development of special-shaped stand-up pouch has the trend to gradually replace the traditional stand-up pouches status.

Chinaunipak.com is a professional soft packing manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology. The main products of our company are all kinds of plastic bags used in food, garment, electronic, gift, chemical and medicine industries, such as color-printing multilayer compound middle-seal bag and three side-seal bag, compound header bag, plat bag, zip lock bag, stand up zip lock bag, anti-static bag, vacuum nylon bag, retort bag,  aluminium foil bag, etc.

Gusseted bags are incredibly well generally known as the feed bag. It is incredibly popular in the sectors or one of several busy schedule persons. These bags are the easiest way to carry your lunch, a few small tools, or other items that simply need to be charmed, you want to do is acquire gusseted bags, place in it, making it very easy. These bags are either plastic-type material or reports also have the latest version will be used to help make the polymer center of this bag material. These bags are very resistant, and durable and also environmentally friendly. Such bags can play a heavy weight and inside the cargo business, they are very popular.

However, increases bags popularity within the industry has also increased along with special health stores. This bag is usually placed inside a chemical substance that is highly allergic and carrying becomes portable. However, when we talk about chemicals, plastic materials of all ages, because it has developed a home vacuum in the bag, so that particular material, which is very sensitive to the use of the atmosphere, it can be protected, is also stored for several years. In addition, they help restore the elusive surface of the bag from a specific maximum amount with minimal losses. However, this advantage just do not get that when we are talking about the report material bags, because several volume maintains its access to hard to get better. In addition, drugs, towing problem is solved, these types of plastic packaging bags, the working reach. The storing along with carrying became an extremely easier in addition to sophisticated work. These bags are made in a similar purpose, are very common, which is usually increased rapidly.

When it comes to the purpose of storage space, there is one thing very popular which is clear zipper bag. These bags pharmaceutical sector and treatment agencies have a good grip. They mainly chose transparent in its operations zipper bags, plastic materials, mainly more preferable. Different body the project much easier because these two are any substance or drug, it is usually not open to determine particular bag. However, if a particular bags are certainly not clear, then there is a need identification tag, it is not just a question about incontinence, but can be considerable effort, only to see better, is also preferred.