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                                                3 Eco-friendly Ink For Children’s Book Printing
 

 Recent years,more and more parents like to purchase Eco-friendly children books for their children, which makes children's book printers'Tučný text'https://www.chinaprinting4u.com/ reduce to use ink or use Eco-friendly inks when print children’s book.

 In this article,we will mainly introduce 3 types of eco-friendly ink for children book printing.

 To see whether the ink is an environmentally friendly ink, the following two points are mainly considered:

 1. Heavy metals, due to children's reading habits, heavy metals in ink may be inhaled from the mouth.

 2. Volatile substances, solvents and additives used in ink, include aromatic hydrocarbon, alcohol, etc. They evaporate as the ink dries and enter the reader's respiratory system.

 What types of environmentally friendly inks are included?

 1. Rice bran ink

 Rice bran ink technology originated from Japan. At present, many institutions and book printing companies in chinahttps://www.chinaprinting4u.com/ are studying it. The main reason is that both China and Japan are big countries in rice consumption and production. 

 Without exerting its maximum value, the development of rice bran oil refining technology and the technological breakthrough of rice bran oil in ink not only maximizes the value of rice bran, but also further improves the environmental protection and sustainable development of printing ink.

 The main advantages of rice bran ink are: ink VOC (Volatile Organic Compounds, volatile organic compounds) residue is low, migration is low, and environmental pollution is little; rice bran resources are easy to localize, which is in line with Chinese national conditions; The residue of harmful substances is small and the safety is high.

 However, the development of rice bran ink is also affected by some objective conditions and ink performance defects, mainly including: China's rice bran oil refining and utilization technology is not developed and popularized enough, the scale is not enough, the cost of rice bran oil is relatively high; The drying speed is slow; the application technology of rice bran ink is not popular enough, and the printing operation and control details are not well known, etc.So rice bran ink is not widely used in children's book printing China.

 'Tučný text'2.Soybean ink

 The aromatic hydrocarbons of mineral oil in the ink are reduced or disappeared, but the influence of VOC is still unavoidable. Therefore, some of the mineral oil is replaced by soybean oil in soybean ink. After mildly purifying soybean oil, it is mixed with additives such as pigments and resins.

Soybean inkink has many advantages: scratch resistance, no irritating odor, light and heat resistance, easier to recycle, wide color, etc. In addition to soybean oil, other vegetable oils can also be used, such as linseed oil.

 Now,many printing companies often use the soybean ink to printing children’s books.https://www.chinaprinting4u.com/

3.Water-based ink

 Water-based ink does not contain volatile organic solvents, and only needs to be diluted with water during printing. Therefore, the water-based ink greatly reduces the emission of VOCs and avoids the pollution of volatile organic compounds. At the same time, it significantly reduces the residual hazardous substances on the surface of printed products, and is one of the most environmentally friendly ink types.

In addition, the application of water-based ink can also reduce the fire hazard caused by static electricity and flammable solvents, and reduce the residual solvent odor on the surface of the printed matter.

 Therefore, the application of water-based inks in food packaging, children's board book printing, tobacco and alcohol packaging is becoming more and more common.

What to Consider When Choose Book Printing Paper

 Book printing in chinahttps://www.chinaprinting4u.com/, we always say choosing paper for a book is like finding a partner.Choose the paper for a book determines whether it matches the qualities of the book; in short, whether it can best present the content. 

When we choose the paper,we really need to consider is:how to choose the paper with cost-effective,good printing effect,best fits the book’s content and cheap.

What are the parts include in choosing paper?

If for the paperback,which includes:

 1. The inner paper;

 2. The end paper.It is the layer of paper between the cover and the text. (Some paperbacks don't use end paper)

 3. Inner cover paper:not every book has it.

 4. Girdle paper: not every book has it, and there are some books, the girdle is part of the outer cover.

 If for the hardcover book printing service,the paper includes:

 1.Inner paper

 2.The end paper

 3.Mounting paper: It is the layer of paper or cloth mounted on the outside of the hard shell (remind everyone to consider the effect of the mounting paper after mounting).

 4.Outer cover paper:not every book has it

 5.Girdle paper: not every book has it.

 When we choose the printing paper,what are we need to consider?

 1.The printing effect.Your book is plain text or with many photos?If your book has many photos,what’s type of the photo.Do you need to see the details clearly, or is there only a general presentation? Is the blur of large particles more effective? Do you pay special attention to the restoration of color, or do you have no special requirements for color.

 2.The gram weight of paper.Paper is generally priced by ton, that is to say, when the price for per ton is the same, you can buy more paper with low gram weight (generally thinner), so it is relatively cheaper, but the gram weight is relatively low. If it is too low, when the paper is printed on the machine, it is easy to wrinkle, and the printing ink, especially double-sided printing, is easy to penetrate, and the effect is very poor.

 As for the high gram weight, the paper is relatively thick (the same kind of paper, regardless of the bulk), and it is thicker in the hand. It is often seen that we custom hardcover book https://www.chinaprinting4u.com/with relatively little content. If the price is relatively high, everyone thinks it is not worth it, but the weight increases. With the same number of pages, the whole book is much thicker, and the price also goes up.

 Special reminder: There are some coated papers, their coating is deep into the paper texture (not only on the surface), this type of paper, the gram weight is more higher, coating is more thicker and the color reproduction is more better ; if the gram weight is lower, it will reduce the coating ability to restore color.
 
 3.The bulk of paper: imagine the paper as a cake. If paper with low bulk is like pancakes, thinner, and paper with high bulk is like a dough cake. So the same gram weight, the book is thicker.

 4.The price of paper.Paper is one of the major costs in china book printing, especially today when the price of paper is rising.

 5.Whether to close or open: the paper used for printing books in chinahttps://www.chinaprinting4u.com/ has a certain size, and the commonly used sizes are different for different papers. During the process of cutting and folding the printing paper into the size of the book, if the size is not correct, it will waste the paper. Such as, before we custom spiral bound book printing, we must fully communicate with the book printing companies in china ,to ask whether this size and the use of this kind of paper will cause waste.

How to choose the paper for your printing project?

In China printing servicechina printing service,select the paper for your printing project is one of the most important parts,which will directly affect the final presentation and the cost of your printed products.

Our commonly used printing paper can be divided into the following night Categories：White cardboard, gray board, coated paper, offset paper, corrugated paper, specialty paper, writing paper, Kraft paper, newsprint,etc.

1. White cardboard:

It is a kind of thick, thick and heavy paper. The surface of this paper is smooth and calendered with high stiffness.

Characteristics: Single-layer or multi-layer combined paper made entirely by bleached chemical pulping and fully sizing, generally the basis weight is above 150g/�? The characteristics of this cardboard are: high smoothness, good stiffness, neat appearance and good formation.

Common weights: white cardboard weights of 200, 250, 300, 350, 400 grams are more commonly used.

Advantages: thick enough and hard enough. The hardness of the cardboard is very high among the paper of the same number of grams. People who like thick cards will really appreciate this paper. The color is not less than coated paper, also very colorful. Writing on the reverse side is easily wiped off immediately. This paper with cost-effective, the price is in the middle.

Disadvantages: It is easy to scratch, from printing to writing, daily touch is very easy to scratch the front very ugly, generally high-grade cardboard will be covered with film to prevent scratches. In particular, black and dark colors will have traces when touched lightly. And irreversible.

Usage:Printing business cards, certificates, invitations, packaging boxes, tags, handbags, covers, monthly desk calendars and postal postcards, etc.

2. Grey cardboard:

Produced from a recycled waste paper. The products are divided into single ash, double ash and full ash, which are environmentally friendly packaging materials.

Usage:packaging boxes, advertising boards, folders, photo frame backboards, luggage, storage boxes, samples, liners, partitions and hardcover book printinghttps://www.chinaprinting4u.com,etc.

3. Coated paper:

Coated paper, is also called coated printing paper. It is a premium printing paper made of base paper coated with white paint. The surface of the paper is smooth, the whiteness is high, the paper fiber is evenly distributed, the thickness is consistent, with small flexibility,good elasticity, strong water resistance and tensile properties. The absorption and reception of ink are very good.

Common classification: Coated paper is divided into single-sided coated paper, double-sided coated paper, matt coated paper, and cloth coated paper. According to the quality is divided into A, B, C three grades.

Common gram weights: The gram weights of coated paper are divide into:70g,80g, 105g, 128g, 157g, 180g, 200g, 230g, 250g, 300g, 400g, 450g, etc. 

Advantages: The color is very bright, the paper is very absorbing, and the color reproduction is high; it can be laminated, and it has a better feel after lamination, and the original material of this paper is very smooth and textured.

Disadvantages: Handwriting is not easy to dry, because it is too smooth.

Usage:Print covers and illustrations of luxury books, color pictures, postcards, picture albums, all kinds of exquisite product advertisements, samples, product packaging, trademarks, etc. Generally, if you want rich colors and complex patterns, coated paper is suggest.

4. Offset paper:

Also known as offset printing paper, double-adhesive paper, etc, it is made of bleached chemical softwood pulp and an appropriate amount of bamboo pulp, and is coated on both sides of the paper with glue. Double-sided coated sizing or calendering, mainly used for lithographic (offset) printing presses or other printing presses to print higher-grade color prints.

Features: It is a relatively high-end paper for book printing in china. It has higher requirements on the ratio, expansion ratio and surface strength during printing. The acidity and alkalinity should also be close to neutral or weakly alkaline.

Common gram weights: offset paper gram weights are divided into 70g, 80g, 100g, 120g, etc., which are more commonly used.

Advantages: offset paper has small elasticity, uniform ink absorption, good smoothness, tight and opaque texture, good whiteness and strong water resistance.

Usage:Printing instructions, sticky notes, colored paper, monochromatic or multi-color book covers, text, inserts, pictorials, maps, posters, color trademarks and various packaging products.

5. corrugated paper:

It is a board-shaped object made of liner and corrugated corrugated paper formed by corrugated stick processing. It is generally divided into two types: single corrugated cardboard and double corrugated cardboard. E, F five types.

Usage:A-type corrugated and B-type corrugated are generally used as outer packaging boxes for transportation, and beer boxes are generally made of B-corrugated. E-corrugated is used for single-piece packaging boxes with high aesthetic requirements. F-type corrugated and G-type corrugated are collectively referred to as micro-corrugated, which is a very thin corrugated. Packaging of microelectronic products such as digital cameras, portable stereos, and refrigerated goods.

6. Specialty paper:

Paper with special purpose and relatively small output. There are many kinds of special paper, which is a general term for all kinds of special-purpose paper or art paper.

The main purpose:

Usage:printing business cards, covers, decorations, handicrafts, boutiques and etc.

7. Kraft paper:

It is a tough and water-resistant packaging paper, brownish-yellow, and has a wide range of uses. The basis weight range is 40 g/m2 to 120 g/m2, in roll and flat paper, as well as single-sided gloss, double-sided gloss and striped. The main quality requirements are flexibility and firmness, high burst resistance, and can withstand greater tension and pressure without breaking.

Usage:printing kraft paper bag,wrapping paper, envelopes,etc.

To summary,choosing the right paper for your project is depend on what type of product you want to print.If you can make the decision,you can ask the book printing factoryhttps://www.chinaprinting4u.com/, who can give you the best professional suggestions for your project.

How to know the common sense of Chinese printing?

 Prints often appear in our lives, but how much do you know about Chinese printingchinese printing knowledge?

Whether it is promotional albums, books printing, catalogue printingcatalogue printing, brochure printing, or business cards, etc, they are all inseparable from printing. Today, we will help you quickly understand printing knowledge through the two parts of printing method classification and paper classification. Part 1 : How to classify printing method?

Classification of printing methods, which can be divided into:

(1) offset printing, that is, lithographic printing, which is printed on a flat surface, such as paper and self-adhesive;

(2) Embossed printing, also called flexo printing, is generally used in plastic printing; (3) Screen printing, which is what we call universal printing, it can be printed on any object and is very flexible, but it has a disadvantage that it is not suitable for large-scale printing. Part 2 : How to classify printing paper?

Commonly used paper for China printing Paper can be divided into industrial paper, packaging paper, household paper, cultural paper, etc. according to different uses, among which cultural paper includes writing paper, art drawing paper, printing paper, etc. . In the printing paper, according to the performance and characteristics of the paper, it is divided into newsprint, letterpress printing paper, offset printing coated paper, dictionary paper, map and marine drawings, gravure printing paper, painting newspaper, weekly newspaper, whiteboard paper, writing paper, etc. . In addition, some high-end prints also widely use art drawing paper. coated paper (1) Features: smooth surface, high whiteness, uniform distribution of paper fibers, consistent thickness, small stretchability, good elasticity, strong water resistance and tensile properties, and absorption and acceptance of ink Condition is very good. There are two types of coated paper: single-sided and double-sided. (2) Main use: mainly used for printing albums, covers, postcards, exquisite product samples and color trademarks. sublime paper (1) Characteristics: The difference from the coated paper is that the surface of the paper is matte, the paper fibers are evenly distributed, the thickness is good, the density is high, the elasticity is good, and it has strong water resistance and tensile properties. The absorbency and receiving state are slightly lower than that of coated paper, but the thickness is slightly higher than that of coated paper. (2) Main use: mainly used for printing albums, cards, postcards, exquisite product samples, etc.

 White cardboard paper

(1) Features: It is a thick and firm white cardboard. There are two types of yellow core and white core. (2) Main use: It is mainly used for printing business cards, postcards, invitations, certificates and printed matters for packaging and decoration. white board paper (1) Features: The inner core is gray, and the paper is thick and firm. There are two kinds of gray background and white background (2) Main use: It is mainly used for printing materials for various packaging and decoration. Double tape paper (1) Features: Wide application and stable quality. (2) Main use: mainly used for various manuals, envelopes, letterheads, etc. writing paper (1) Features: Writing paper is a paper for ink writing, and the paper is required not to smear when writing. (2) Main use: mainly used for printing exercise books, notepad printing, forms and account books, etc. Kraft paper (1) Features: It has a high tensile force, with single light, double light, stripes, no lines, etc. There are two kinds of white cowhide and yellow cowhide (2) Main use: mainly used for wrapping paper, envelopes, paper bags, etc. art paper (1) Features: There are many kinds. (2) Main use: Mainly used in beautiful book covers, picture albums, cheap brochures printing, invitations, greeting cards, high-end office paper, business cards, high-end packaging paper, etc. Sticker (1) Features: Due to the adhesive on the back, the paper is thinner. Mirror surface, copper plate, writing sticker, etc., and the viscosity is different (2) Main uses: mark labels, postal parcels, letter packaging, transport goods labels, envelope address labels, etc.