Paper can be seen everywhere in daily life. When it comes to paper, most people think of cardboard boxes and toilet paper. In fact, special paper made with special techniques or materials can be seen everywhere in our daily lives. Today, we will take you to identify the special paper in daily life one by one.

 

Thermal Paper


 

　　Did you notice the bank receipt you used to swipe your card after shopping? Did you notice the receipt you received after shopping at the supermarket? Yes, these are thermal recording papers, abbreviated as thermal paper. Thermal paper is an information paper that can achieve recording effect under the action of heat, and its surface has a layer of coating (mainly composed of colorless dyes and color developing agents). In addition, thermal paper is also used as fax machine paper, POS related thermal label printing, electrocardiogram machine paper, computer output terminal paper, as well as recording paper for various medical measuring instruments and thermal detection instruments.
 

Carbonless copy paper


 

　　The pile of contracts you bring back from doing business at the bank, receipts and delivery notes issued by your boss when you pay for purchases or various payments, these are carbonless copy paper, abbreviated as carbonless paper. Carbonless paper, also known as pressure-sensitive recording paper, is a type of hidden color copy paper that has the functions of direct writing and color development. It does not rely on pressure to transfer dye substances and achieve a copying effect like ordinary carbon paper. Instead, it uses the chemical coloring principle between pressure-sensitive and electron donating colorless dyes and electron accepting acidic color developing materials to directly color on paper, without the need for a "blue paper" pad. Copy copies of 3-8 pages and electric printing of 3-12 pages are widely used in commercial subpoenas, shipping orders, corporate reports, cash receipts, airline tickets, hospital prescriptions, and other fields.
 

Ｗallpaper


 

　　Indoor decoration materials used for pasting walls. Because of the diverse and environmentally friendly patterns, it is loved by many people. The types are mainly divided into pure paper wallpaper, non-woven wallpaper, PVC wallpaper, and wall cloth wallpaper. There are also some functional wallpapers such as heating wallpaper, moisture absorbing wallpaper, anti mold breeding wallpaper, odor absorbing wallpaper, flame-retardant wallpaper, high shielding wallpaper, etc.

 

Cup paper


 

　　Paper cups are made from paper cup base. Paper cups are small containers for holding beverages and other food items, which are very common in daily life. Disposable paper cups are almost a must-have at home, and you can also see milk tea cups, coffee cups, etc. in supermarkets. According to the structure of paper cups, they can be divided into four types: covered, uncovered, with handles, and without handles. The manufacturing of paper cups begins with printing, followed by die-cutting into a fan-shaped shape, and finally sealing the upper edge and lower bottom with the cup body to form a shape. The sealing requirements for paper cups are very high. In order to improve the liquid resistance performance, except for plastic coated cups and aluminum foil paper cups, all other paper cups are required to be waxed.
 

Decor Paper


 

　　The furniture, doors, floors, etc. made of artificial board materials that we usually see, only one layer is made of wood, and the other three layers are made of paper. The surface layer is wear-resistant paper, followed by decorative base paper that can be printed, and then the substrate layer of the artificial board. The bottom layer is another layer of paper - balance paper.

 

Special tape paper


 

　　Mainly including washable paper and textured paper. It has a fixed weight base, high wet strength, high elongation, soft paper, and is resistant to rubbing and washing. It can be used as the base paper for pressure-sensitive adhesive tapes. After immersion and anti sticking treatment, the base paper of Meiwen is called Meiwen paper, which is a type of wrinkled paper. Both washi tape and masking tape can be used for painting masking tape in the automotive industry, as well as for pasting, protecting, fixing, and packaging in various industries such as construction and decoration, and for weaving and finished product weaving in the production process of electronic components.
 

Parchment


 

　　You must remember this, a small bag with a small string for packaging tea leaves. You can directly soak the small bag containing tea leaves in water without worrying about eating the tea leaves. This is the function of tea filter paper. The main raw materials for tea filter paper include synthetic fibers and plant fibers, among which the most commonly used synthetic fibers are polypropylene fibers or polyester fibers. To minimize the impact on food hygiene, wet end chemical additives should be avoided as much as possible.

 

 

　　Although it is the same type of food filter paper as tea filter paper, its usage is somewhat limited. The use of coffee filter paper is like filtering liquids in a chemistry laboratory. Fold the coffee filter paper into a funnel shape and place it in a suitable container. Add the ground coffee powder into the filter paper and then brew the coffee with hot water. You can also give it a try.
 

Paper, gauze, paper


 

　　Mainly used for producing paper ropes, weaving baskets, craft hats and other handicrafts, it can also be used for producing socks and clothes. In terms of use, it is no different from ordinary clothes and has better moisture absorption and sweat wicking effects.
 

Battery separator paper
 

　　You can't see this paper, it's sealed inside the battery. Its function is to isolate the positive and negative poles, prevent the direct formation of electronic pathways between the two poles, and allow ions in the electrolyte to freely pass through. The separators inside the No. 5 battery, No. 7 battery, and rechargeable nickel hydrogen battery that we usually see are all made of wet paper.
 

Anti adhesive paper
 

　　Anti adhesive paper has a wide range of uses and types. There are anti stick paper for self-adhesive label paper, release paper for foam artificial leather and foaming materials, release paper for laminated materials, backing paper for various pressure sensitive tapes, baking paper for food manufacturing, and anti stick packaging paper for viscous substances. The vast majority of anti adhesive paper is coated with silicone.
 

Food paper
 

　　There are many types of food paper, including oil proof paper used in fast food restaurants, cake trays used in cake shops, baking paper used for baking bread and cakes, noodle bowl paper used for instant noodles, barbecue paper, salt bag paper used for packaging salt, etc. Although they are all food grade paper, their performance indicators and technical points are completely different. The quantity of oil proof paper is very low, but the quantity of noodle bowl paper is very high.

 

 

test paper

　　There are many test papers with different properties, such as blood glucose test paper, early pregnancy test paper, ovulation test paper, meat test paper, pesticide residue test paper, milk alkali test paper, nano enzyme test paper, blood type test paper, AIDS test paper, and coccus test paper. They are really diverse.

 

Fruit bag paper


 

　　Fruit bag paper is the paper used to produce fruit bags. Only when you pass by the orchard can you see paper fruit bags wrapped around the fruits. Most fruits such as apples, pears, grapes, mangoes, bananas, loquats, peaches, pomegranates, lychees, starfruit, grapefruit, wax apple, citrus, dragon fruit, kiwi, etc. have corresponding characteristics and specifications of fruit bag paper. The fruits cultivated using bagging technology have a smooth surface, bright colors, a large and regular shape, and solve the problem of high pesticide residues in unbagged fruits. Fruit bag paper requires high water resistance, high wet strength, and high air permeability. The ratio of fiber raw materials and the selection of additives are the technical key points.

 

security paper

　　There are many classifications of anti-counterfeiting paper based on their anti-counterfeiting performance, among which the most common is banknote paper, but this type of paper cannot be produced privately. Banknote paper has high strength, especially with a folding resistance of several thousand times or more, and has significant water resistance, making it suitable for gravure printing.

 

Tobacco paper

 

　　There are three types of special paper on a cigarette: molded paper, cigarette packaging paper, and cigarette paper; There is also a special type of paper in cigarette packs, aluminum foil backing paper. Their performance is completely different. Below, the editor will tell you about these 4 types of paper related to cigarettes

　　Filter rod forming paper: It is a paper used to wrap the outer layer of cigarette filters with fiber bundles. This product is used in conjunction with perforated water pine paper, which can effectively reduce the tar content of cigarettes.

　　Cigarette packaging paper: also known as water pine paper, is a material obtained by printing and processing water pine raw paper, which is used as the outer packaging material for filter cigarette tips. Water pine paper comes into direct contact with the lips of smokers, therefore it is required that its printing ink and coating must be non-toxic, comply with food hygiene standards, have water resistance and high moisture strength.

　　Cigarette paper: a special paper used to wrap tobacco. The technical difficulty is high. Require non-toxic and odorless; It has a certain thickness, whiteness, high air permeability, high tensile strength, and the paper is uniform and compact; Has a certain degree of opacity, must not expose the bottom after smoking, and can continue to burn in the dark; The cigarette does not extinguish when burned and smoked, it is gray and white, and can tightly wrap the ash; Its appearance requires a flat and smooth surface, clear paper ridges, and a soft touch.

　　Aluminum foil backing paper: It is a paper base of composite aluminum foil paper and spray coated aluminum foil paper, which is bonded to aluminum foil through different process methods and dried to become aluminum foil paper.

 

sandpaper

 

　　I saw it when I was young, hidden in my dad's toolbox. Sandpaper is a general term for grinding tools made by adhering grinding materials to soft substrates with adhesives. It is mainly used for grinding and polishing the surfaces of wood, bamboo, glass, and various metal workpieces. Its main raw materials are raw paper, grinding materials, and adhesives. Require the base paper to be strong, wear-resistant, folding resistant, and water-resistant.

 

Digital photo paper

 

　　Photos that record life are also special paper. Photographic paper not only has certain thickness and hardness requirements, but also needs to be able to have bright colors and maintain color for a long time. Technically speaking, photographic paper is coated with a special layer on top of regular paper, which makes the paper look brighter and can quickly absorb ink with extremely small particles, allowing it to solidify and maintain bright colors for a long time. In addition, the paper texture is relatively hard, and high-resolution printing can effectively prevent ink penetration.