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2025-07-16

Key points needing attention in ink printing process

Ink printing is a process with high technical requirements, involving material selection, equipment operation and environmental control. The following are the key points that should be paid attention to in the process of ink printing to ensure the printing quality and efficiency:   1. Ink selection and preparation Matching printing materials: different materials (such as paper, plastic, metal, etc.) need to choose the corresponding ink type. For example, plastic printing usually requires UV ink...

2025-07-15

The Neglected Industrial Invisible Man

When you wake up in the morning, you pick up your smartphone, and its touch screen is closely attached to the fuselage; Put on sports shoes, and the soles are firmly connected with the uppers; Driving to work, the windshield is firmly fixed on the frame-behind these seemingly ordinary scenes, there is a common "hero": adhesive. This humble material is changing our world in an amazing way.   The history of adhesives can be traced back to thousands of years ago. Ancient Egyptians glued wooden...

2025-07-14

Flexible packaging: the second skin of food preservation

Tear open a bag of fresh milk in the morning, take out a bag of crisp potato chips in the afternoon, and heat a convenient instant rice in the evening-modern people's eating life has long been inseparable from soft packaging. This packaging form made of composite film material, with its advantages of portability, durability and low cost, quietly changed the way of food preservation and circulation, and became an indispensable "guardian" of food industry.   The technical core of flexible...

2025-07-12

Food packaging: the guardian of tongue tip safety

Open the refrigerator in the morning, and the shelf life label on the milk box is clearly visible; In the afternoon, a bag of potato chips was opened, and the aluminum foil bag made a crisp sound; When cooking in the evening, the tomato sauce in the glass jar keeps bright color-food packaging is like an invisible guardian, guarding our food safety 24 hours a day. From the leaves and hides of primitive society to contemporary polymer materials, the evolution history of food packaging is just a...

2025-07-11

Matters needing attention in food soft packaging

Food flexible packaging is widely used in modern food industry because of its advantages of portability, low cost, easy processing and transportation. However, in order to ensure food safety, extend the shelf life and meet the needs of consumers, the following key points should be paid attention to when using soft packaging.   1. Choose the right packaging materials There are many kinds of soft packaging materials, such as plastics (such as PE, PP, PET), aluminum foil and composite film....

2025-07-10

Future development trend of polyurethane adhesive: innovation drive and green transformation

With the global industrial upgrading and environmental awareness, polyurethane adhesive, as an important part of high-performance materials, is welcoming a new round of technological changes. In the next few years, there will be three core development trends in this field, which will push the industry towards a more efficient, environmentally friendly and intelligent direction.   Green environmental protection technology will become the mainstream direction. Under the background of "double...

2025-07-08

Flexible packaging: the flexible wisdom of modern packaging revolution

In the field of contemporary commodity circulation, flexible packaging is quietly changing the pattern of traditional packaging industry with its unique material characteristics. This packaging form made of flexible composite materials is showing amazing adaptability in many fields such as food, medicine and daily chemical.   The most remarkable feature of flexible packaging is its excellent material efficiency. Compared with traditional rigid packaging, the average weight of flexible packaging...

2025-07-07

Remarkable advantages of flexible packaging and its application in modern packaging

As an innovative packaging form, flexible packaging has been widely used in all walks of life in recent years, and its market share has continued to grow from food, medicine to daily chemical products. Compared with traditional hard packaging, soft packaging is gradually changing the pattern of modern packaging industry with its unique advantages.   Lightweight and flexible characteristics The most intuitive advantage of flexible packaging is its lightweight characteristics. Compared with...

2025-07-05

New age food flexible packaging

Definition and characteristics of food flexible packaging Food soft packaging refers to the packaging made of soft materials (such as plastic film, aluminum foil, paper, etc.), which is used to package food, protect its quality and extend its shelf life. Compared with traditional rigid packaging, food flexible packaging has the following characteristics: 1. Lightweight and easy to carry Food soft packaging is usually made of lightweight materials, so it is lighter and more convenient to carry...

2025-07-04

What is waterborne polyurethane adhesive?

  Waterborne polyurethane adhesive refers to an adhesive formed by dissolving or dispersing polyurethane in water. Waterborne polyurethane adhesive has the advantages of adjustable hardness, low temperature resistance, good flexibility and high bonding strength, and can bond various materials such as metals and nonmetals. Waterborne polyurethane adhesive has the characteristics of low VOC content, low or no environmental pollution and non-flammability, which is the key development direction of...

2025-07-03

Classification of Polyurethane Adhesives by Curing Methods (Ⅱ)

Two-component type Two-component polyurethane adhesive is the most important category of polyurethane adhesives, which can be used for bonding metals, rubber, plastics, fabrics, leather, rubber-plastic materials, wood, ceramics, glass and so on, and even has a certain bonding strength for difficult-to-stick polyethylene and polypropylene.   Two-component polyurethane adhesive, also known as universal polyurethane adhesive, can be divided into solvent-based and solvent-free types, including...

2025-07-01

What is polyurethane adhesive?

Polyurethane adhesive, a chemical widely used in modern industry, has become an important pillar of adhesive industry because of its unique properties and wide application fields. Next, the composition, characteristics, application and future development trend of polyurethane adhesive will be discussed in detail. Composition of polyurethane adhesive Polyurethane adhesive is mainly composed of ammonium isocyanate, polyol, polyether containing alkyl group, polyester and epoxy resin, filler,...

2025-06-30

Matters needing attention in ink printing

Ink printing is one of the most common processes in the printing industry, which is widely used in books, packaging, advertising and other fields. In order to ensure printing quality, improve production efficiency and reduce material waste, operators should pay attention to the following key matters: Choose the right ink Different printing materials and processes need to use different types of inks. For example: 1. Offset printing ink: suitable for paper printing, fast drying and bright...

2025-06-28

Application and Development of Polyurethane Adhesive for Flexible Packaging Composite

Summary Polyurethane adhesive, as a key bonding material in soft packaging composite materials, has been widely used in food, medicine, daily chemical and other packaging fields because of its excellent performance. This kind of adhesive ensures the barrier, mechanical strength and durability of packaging materials by forming firm adhesion between different substrate layers of flexible packaging. Performance characteristics Polyurethane adhesive for flexible packaging has the following obvious...

2025-06-27

Flexible packaging: the "flexible guardian" of modern life

    In the supermarket shelves, in the mountains of parcels in the express post, soft packaging is everywhere with its light posture. This packaging form made of flexible materials is changing our way of life with amazing penetration and becoming a "flexible guardian" connecting production and consumption.     Food industry is the most widely used field of soft packaging. From the soybean milk upright bag on the breakfast table to the nut aluminum foil bag in the office drawer; From the...

2025-06-25

Advantages of flexible packaging

With the continuous development of modern packaging technology, flexible packaging has been widely used in food, medicine, daily chemical and other fields because of its unique advantages. Compared with traditional hard packaging (such as glass bottles, metal cans, etc.), soft packaging has the characteristics of portability, environmental protection and low cost, and has become an important trend in modern packaging industry. 1. Portable and easy to use. Soft packaging is usually made of...

2025-06-24

Flexible packaging: the flexible revolution of modern consumption civilization

Stopping in front of the supermarket shelves, we can easily find a quiet change: glass jars, metal boxes and hard plastic containers are gradually giving way to various light and thin bagged and film-packed products. From snacks to shampoos, from fast food to pet food, soft packaging permeates every corner of daily life with its light posture. This flexible revolution in packaging materials is reshaping the basic form of modern consumer civilization. The rise of flexible packaging first stems...

2025-06-23

Flexible packaging printing: the exquisite art of modern packaging industry

In a dazzling array of supermarket shelves, those soft packaging products with bright colors and exquisite patterns are always the first to attract consumers' attention. As an important part of the packaging industry, soft packaging printing has penetrated into every aspect of our daily life, from food packaging to medical supplies, from daily chemical products to electronic products, all of which reflect the exquisite and charm of this technology. There are significant differences between...

2025-06-21

Ink printing: the invisible pusher of civilized communication

In the long river of human civilization development, ink printing is like a silent lightning, illuminating the road of knowledge dissemination. This technology of transferring words and images to the substrate through ink has been closely linked with the progress of human civilization since its birth. From the ancient block printing in the east to the movable type revolution in Gutenberg in the west, ink printing has been evolving and has become an important force to push mankind out of the...

2025-06-20

Ink printing: the invisible pusher of civilized communication

Today, with the digital technology sweeping the world, ink printing still maintains irreplaceable cultural value. This ancient technique, which originated in the Sui and Tang Dynasties in China, achieved the most lasting media revolution in the history of human civilization communication through the physical process of transferring ink to the substrate. Modern ink printing has developed four mature processes. Offset printing occupies a dominant position in the field of book printing by virtue...

2025-06-19

Flexible packaging printing: technical innovation and market opportunity of modern packaging industry

In the field of consumer goods packaging, soft packaging is gradually replacing traditional hard packaging and becoming the mainstream choice in the market because of its portability, durability and high cost-effectiveness. As the core link of this transformation, flexible packaging printing technology combines the innovative achievements of material science and printing technology, which gives more possibilities for product packaging. The basis of flexible packaging printing lies in the...

2025-06-18

Flexible packaging: the intelligent choice of modern packaging

In the fast-paced modern life, flexible packaging has become the first choice for packaging in various industries because of its portability, environmental protection and versatility. Whether it is food, daily chemical, medicine or electronic products, flexible packaging can provide efficient protection and convenient use experience, and at the same time conform to the global trend of sustainable development. Lightweight and flexible, improve efficiency Flexible packaging is made of film,...

2025-06-17

Flexible packaging: the flexible wisdom of modern packaging revolution

On the supermarket shelves, those plastic bags, aluminum foil bags and composite film packages that can be easily extruded and deformed are changing the consumption experience of human beings in a silent way. As an important branch of packaging industry, flexible packaging has opened up a flexible road in the field dominated by traditional rigid packaging with its unique material characteristics and structural design.   The most obvious advantage of flexible packaging lies in its excellent...

2025-06-14

Bonding technology of polyurethane adhesive (Ⅱ)

3. Roughening treatment If the bonding surface is smooth, it is generally necessary to roughen it first to increase the contact area between polyurethane adhesive and substrate. Polyurethane adhesive permeates into the recesses or pores on the surface of the substrate, and after curing, it can be embedded like "nails, hooks and sticks", which can firmly stick the substrate together. Commonly used treatment methods include sand blasting, wood file coarsening and sandpaper grinding. However, if...

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