Four characteristics of printing and packaging materials

Four characteristics of printing and packaging materials

1.Protection performance. First of all, packaging materials must have certain mechanical strength. Different products have different requirements for packaging materials. For example, food packaging bags must fully comply with food packaging hygiene standards. That is, the packaging material does not migrate with toxic substances, and is non-toxic, odorless, and odorless. In addition, the nature of the contents needs to be clarified. For moisture-proof packaging, vacuum packaging, and inflatable packaging, it must have the function of blocking water vapor and oxygen in the environment from penetrating into the packaging bag and preventing the inert gas in the bag from leaking out.

food packaging bags

The packaging of quick-frozen vegetables and frozen foods must be resistant to low-temperature freezing. The microwave-sterilized food packaging and packaging materials for making “steam bags” are required to have the function of resisting high-temperature cooking without shrinking and deforming.

For oil-containing food packaging bags, it is required to have the functions of air tightness, oil resistance and resistance to ultraviolet penetration. For skin packaging and shrink packaging, plastic films must have a certain shrinkage tension.

Packaging for tea, pills, biscuits, etc. needs to be highly moisture-proof, air-tight, and light-shielding to maintain its original flavor.

For packaging of fresh vegetables and fruits, if it uses moisture-proof and gas-barrier packaging materials, it will bring side effects, because vegetables and fruits need a proper amount of oxygen to keep them fresh.

food packaging bags

2.Operational performance. For plastic food packaging bags printing materials, it must first have printability, or it can solve the problem of printing fastness after pretreatment, and it must have certain rigidity and stiffness, which can be adapted to automatic packaging by packaging machinery, and suitable for mechanical sealing by heat sealing. , Bag making.

3.Delivery and storage performance. The packaging must have a certain endurance strength, and it is not easy to be damaged when it is subjected to general pressure in the circulation field. The shape of the packaging should be easy to pile up and occupy less space and other properties.

4.Promotional performance. Food packaging bags styles should be novel, decorative and printed colors should be bright and generous, in line with the hobby of the sales area, have market competitiveness. In addition, it is required to be free of static electricity, so as not to be contaminated by dust.


If we want to custom flexible packaging, what should we pay attention to?

If we want to custom flexible packaging, what should we pay attention to

We know that shopping malls and supermarkets will customize plastic bags with their own logos, and the plastic bags, vacuum bags, and packaging bags used by businesses need to print corporate logos and related content. Therefore, it is necessary to custom flexible packaging. So, what should we pay attention to when custom flexible packaging?

1.Selection of materials

When custom flexible packaging, it is necessary to know what kind of materials to choose. At present, the main production materials of packaging bags are polyethylene and polypropylene. The former is non-toxic and environmentally friendly, while the latter is toxic and harmful and not environmentally friendly. Therefore, the scope and purpose of use are very different. When customizing, you must choose the appropriate materials according to what your packaging bag is used for.

custom flexible packaging

2.Selection of size

If it is custom flexible packaging, the model size can be determined by itself. Take the convenience bag in the supermarket as an example. Generally speaking, there are three models of large, medium and small, and these models are not completely unified with the manufacturer. Sometimes, the model can be adjusted according to the specific needs of the supermarket. In addition, convenience bags in supermarkets must be printed with the national unified chain logo, bags such as food safety, and must be printed with food safety-related signs before they can be put into use.


The difference between flexible roll film and packaging bag

The difference between flexible roll film and packaging bag

Difference in meaning

In the packaging bag industry, flexible roll film is divided into two meanings. One refers to the flexible roll film of the raw material of the packaging bag, which is made of a single layer of material, such as CPP, PE, PET, OPP, kraft paper, aluminum foil, etc. Film, the other is the roll film after the printing of the packaging bag. The raw material is printed, compounded, and rolled up. It is called composite film or printed flexible roll film. It is the previous process of making packaging bags. It is often used for small packaging. Such as candy, coffee powder and so on.

Business difference

1.Manufacturers of single-layer flexible roll film can only produce transparent plastic films, and cannot directly produce packaging bags. They belong to the upstream of packaging bag manufacturers and are the raw materials of packaging bags.

2.The compound (printed) roll film manufacturer is a series of production and processing of transparent and non-printed flexible roll film to produce (printed) roll film. On this basis, a bag making process is added to produce A variety of composite packaging bags, including snack food packaging bags, rice bags, tea bags, vacuum bags, aluminum foil bags, high-temperature cooking bags, mask packaging bags and so on.


As flexible laminated pouches are booming in the packaging industry, it is important to shift to such packaging materials. Flexible bags are one of the popular packaging methods today and are widely used by consumers and institutional products to store, sell and distribute or circulate large quantities of goods. Leading these innovative ways to help add value to your products, especially when it comes to food products, flexible laminated pouches are considered “beneficial.” Do you want to know why? Well, it helps protect food, extend its shelf life, and protect it from harmful heat, and these foods have a resealable feature that can be customized to your liking.

Why Are Flexible Laminated Pouches Increasingly Popular

The life cycle of  flexible laminated pouches illustrates how sustainable these methods are. They provide less waste and help reduce waste at landfills. Moreover, this advanced packaging option allows manufacturers to use less natural resources for production, and this innovation is only reducing greenhouse gas emissions, reducing energy consumption and bringing more benefits, which is the method that has gained popularity another reason.

Flexible Laminated Pouches

This is the main reason manufacturers prefer flexible bags or liquid packaging …

1.Transportation: Because these pouches are lightweight, they help reduce transportation costs on domestic and international panels. Zh

2. Environmental protection: The bags can be reused and recycled, they are environmentally friendly, and consumers can use them to store other edible or inedible things.

3. Reduce food waste: Another main reason most people like these packaging methods is that it can extend the shelf life of the product and all foods are easy to eat. So there is no waste.

4. Diverse and customizable: Flexible packaging methods can freely customize products according to customer needs. You can meet the needs of the product. Zh

On Fast Sincere, you can find a variety of flexible laminated pouches from vertical packaging bags to flexible laminated bags, and we offer you a variety of packaging solutions.

What is a Kraft Bag Packaging?

What is a Kraft Bag Packaging

Kraft bag packaging are bags made from kraft paper. Kraft paper packaging bag is based on the whole wood pulp paper. The color is divided into white kraft paper and yellow kraft paper. A layer of pp material can be applied to the paper to protect it from water. The strength of the bag can be made from one to six according to customer requirements. Layer, printing and bag making integration. Opening and back cover methods are divided into heat seal, paper seal and paste bottom.

What is a Kraft Bag Packaging

kraft bag packaging, used as a packaging material, is very strong, usually yellow-brown, half- or full-bleached kraft pulp is light brown, cream or white. Quantitative 80-120g / m2. The fracture length is generally above 6000m. High tear strength, breaking work and dynamic strength. Most are roll paper, but also flat paper. Sulfate coniferous wood pulp is used as raw material, beaten and made on a Fourdrinier paper machine. It can be used as cement bag paper, envelope paper, adhesive paper, asphalt paper, cable protective paper, insulation paper, etc.

Kraft paper packaging bag is non-toxic, odorless, pollution-free, meets national environmental protection standards, has high strength and high environmental protection, and is currently one of the most popular environmental protection materials in the world. The use of kraft paper to make kraft paper packaging has become more and more widely used. Shopping in supermarkets, shopping malls, shoe stores, clothing stores and other places will generally be provided with kraft paper bags, which is convenient for customers to carry purchased items. Kraft bag packaging are an environmentally friendly packaging bag with a wide variety.

Kraft Bag Packaging

Kraft bag packaging bag is a kind of composite material or pure kraft paper packaging container. It is non-toxic, odorless, non-polluting, low-carbon and environmentally friendly, meets national environmental protection standards, has high strength and high environmental protection, and is currently the most popular and popular in the world. One of the environmentally friendly packaging materials.

Scope of application

Chemical raw materials, food, pharmaceutical additives, building materials, supermarket shopping, clothing, etc. are all suitable for the industry of kraft paper bags.