Lecture series I of the hottest high-end packaging

A series of lectures on high-end packaging art paper I

I. overview of special paper:

1 Introduction to special paper:

special paper is generally a kind of paper with high added value for a specific performance and purpose. Special paper can be roughly divided into traditional special paper and special special paper. Traditional special paper can be used for special packaging, labeling, decoration and other printing purposes. Special special paper needs unique processing capacity and special technology. Usually, the market capacity is small, and such products often have their unique properties. In Taiwan, China and Japan, in addition to special paper, the concept of functional paper (also known as functional paper) was put forward. The so-called functional paper generally refers to paper with special functions made of non plant fibers. According to published in Japan According to the division of the book "overview of new functional paper Shanghai", functional paper can be divided into 16 categories, including mechanical properties, thermal properties, electrical, electronic and magnetic properties, optical properties, musical properties, bonding properties, separation and filtration properties, water properties, oil properties, gas adsorption properties, and other physical properties, chemical properties, biochemical properties, perceptual, composite properties, etc. there are about 600 kinds of functional paper. Compared with ordinary paper, special paper tools It has the characteristics of high performance, high added value, high technology content and short life cycle

in China, special paper and functional paper are generally referred to as special paper. Later, we will discuss special paper in a narrow sense (excluding functional paper), which mainly refers to art paper as we often say

even if "functional paper" is eliminated, the concept of "special paper" in the industry is relatively confused. Some people call it "art paper" or "fancy paper", and some only mention "patterned paper", "embossed paper", etc. In fact, special paper includes not only high-grade fancy paper, but also some high-grade packaging and packaging materials. The art paper we discuss (also known as fancy paper and special paper) mainly refers to the culture and packaging paper different from ordinary printing paper, such as coated paper, offset paper, paper (generally cow leather has significantly improved paper compared with lead halogenated perovskite). Art paper usually requires special paper processing equipment and technology, and the processed finished paper has rich colors and unique lines. Art paper can be used in exquisite book covers, picture albums, brochures, invitations, greeting cards, high-end office paper, business cards, high-end packaging paper, etc

take Changyi special paper company as an example, its products can be divided into several categories according to their uses and properties:

industrial paper - functional paper: packaging cotton paper, double-sided tape base paper, wire and cable coating paper, fireproof paper, rust proof paper, filter paper, lampshade paper, wood veneer bonding paper, copper foil lining paper, gold foil lining paper, capacitor paper, building materials paper, etc. Household paper: oil absorbent facial paper, laundry label paper, coaster paper, etc. Medical paper; Mask paper, medical packaging paper, etc. Factories in Taiwan are mainly industrial paper

cultural paper --- art paper: embossed paper, wear-resistant cover paper, photo frame cardboard, bright face art packaging paper, hand kneading paper, paper cord base paper, environmental protection leather paper, lantern paper, etc. Most of these papers are made of excellent materials (2) check whether the gasket at the joint is complete, advanced technology, excellent quality and unique; Rich colors, different textures and unique textures make the expression of paper unprecedented rich. After the emergence of special paper, the world of paper has become wonderful. In the mainland, Changyi mainly focuses on art paper, and focuses on art paper for packaging (such as Oxford paper, bright face sound shuttle paper, Liuzi paper, gorgeous series, etc.)

2. Impact of special paper on various industries:

the birth of special paper undoubtedly brings new opportunities and challenges to China's paper industry. With the development of the packaging and printing industry, the domestic market has an increasing demand for special paper. Special paper has sprung up and developed rapidly in the domestic paper market, which has a great impact on the domestic paper industry, publishing industry, design industry and printing industry. At present, with the rapid development of the domestic economy, people's aesthetic requirements are also constantly improving. The demand for displaying images and communicating information through paper is growing day by day, and the art paper industry has also developed rapidly. Since entering China in the early 1990s, art paper has attracted many people in the design and printing circles with its unique charm, and the use of art paper has also increased dramatically in the second half of 2016

for the publishing industry, copper plate and offset plate are no longer the only choices. In the future, the positioning of books will be more clear. From paper printing to content, we should consider the taste, purchasing power and preferences of the purchasing class. Paperback, hardcover and books with various paper design effects will greatly enrich the domestic book market

for designers, choosing paper and understanding paper have become an integral part of design work. Designers who know nothing about new materials are not only unable to gallop freely in the field of design, but also may be abandoned by the times

for printers, customers often judge their process level based on their high level of printing special paper. When specialty paper first entered China, there were not many printers who could print, and various printing problems emerged one after another. A few years later, our printing plant has accumulated a lot of experience and is becoming more and more mature in continuous exploration. There is no doubt that in the era of rapid changes in the science of paper materials, daring to try and forge ahead will make the printing factory invincible

3. The characteristics of special paper compared with ordinary paper

the production process of special paper is relatively complex, and some production equipment is extremely expensive. Its production cost is high, the speed is slow, and the cycle is long

the pulp of special paper is generally 100% wood pulp, and some even contain cotton pulp

patterned paper with the same weight will appear thicker than copper paper, so we often use G special paper to replace 200 g copper paper, thus saving costs for customers

most special papers have texture and texture, and have the feeling of returning to nature. The proper application of texture and color of pattern paper can make the designer's intention expressed incisively and vividly

the unique texture and rich colors of special paper simplify the printing process to a certain extent. That is, some simple printing processes, such as monochrome printing or embossing, can achieve good results and reduce the printing processing cost

paper is a bridge to communicate with the media. Most companies use paper as a medium to transmit information. One of the important factors affecting the company's image is the materials used in its CI production. The selection of pattern paper improves the image of the company and shows the strength of the company, so as to better achieve the purpose of publicity and increase benefits

most special papers are environmentally friendly, which can reflect the company's environmental awareness, especially for foreign trade enterprises

4. Further understanding of special paper from different perspectives

from the perspective of pulp. Special paper pulp requires high quality, mostly pure wood pulp, with more long fibers, and some also contain cotton. This kind of paper pulp has good strength and toughness, good stiffness and elasticity, and bright color. The pulp of ordinary paper is equipped with a certain proportion of non wood fibers. The paper is easy to turn yellow and generally needs to be coated. For example, Changyi paper adopts long fiber pure wood pulp imported from northern Europe

from the perspective of dyeing, it can be divided into pulp dyeing and post dyeing: pulp dyeing is to add dyes during paper beating, so that the color is evenly distributed in the pulp fiber, the color of the paper is saturated and uniform, and the cross section is the same inside and outside. Post dyeing is to dye the pigment on the surface of the paper by soaking after the paper is formed. The color stability is inferior to that of pulp dyeing. It is easy to decolorize in case of water. When dark paper is folded, it is easy to have white edges, which destroys the overall effect. When dark paper is dyed in case of water, it is easy to fade

for example, Changyi paper is Pulp dyed, also known as primary color pulp paper

there are cold embossing and hot embossing from the way of steel rolling. After the paper has been formed, on the embossing machine, the base paper is sent between the embossing roller and the soft felt at an appropriate temperature, and the lines engraved on the steel roller are transferred to the paper through a certain pressure and special treatment. The steel roller with different patterns is used for embossing, so that the paper surface produces various texture effects, which not only makes people feel comfortable but also pleasing to the eye. In a certain occasion, specific lines (including words, logos, etc.) also have the effect of brand publicity or anti-counterfeiting. Changyi factory generally adopts 12. Longitudinal retraction rate: gb/t 6671 ⑵ 001 determination of longitudinal retraction rate of thermoplastic pipes. Hot embossing treatment makes the paper texture transition natural and delicate, and will not damage the paper fiber. Cold embossing is that the finished paper directly passes through the carved steel roller and uses mechanical pressure to make the paper produce patterns. The cold embossing process is simple, relatively low cost, convenient and easy to operate, but it is harmful to the paper fiber, the pattern law changes little, slightly mechanical, rigid, and some lines are not full enough