Blotting paper, sometimes called bibulous paper, is a absorbent type of paper or other material. It is used to absorb an excess of liquid substances from the surface of writing paper or objects. Blotting paper referred to as bibulous paper is used in microscopy to remove excess liquids from the slide before viewing. Blotting paper has been sold as a cosmetic to aid in the removal of skin oils and makeup. Blotting paper is made from different materials of varying thickness, etc. depending on the application. It is made of cotton and manufactured on special paper machines. Blotting paper is reputed to be first referred to in the English language in the 15th century but there is a tradition in Norfolk, England that it was invented by accident at Lyng Mill on the River Wensum, it is reported that a Berkshire paper mill worker failed to add sizing to a batch of paper, being produced. The batch was discarded. Subsequently, someone tried to write on a piece of this discarded "scrap" paper and found that it absorbed any ink applied, making it unusable for writing.
Its marked absorbency having been noted, led to its subsequently being produced and used as blotting paper, replacing sand, the material, used for absorbing superficial wet ink. In a time when most paper was produced from "rags", red/pink rags, from which it was difficult to remove all color and had been discarded, were now directed to the production of blotters, hence the characteristic pink color of blotters. A form of blotter paper known as watercolor paper is produced for its absorbent qualities, allowing much better absorption of water and pigments than standard art or drawing papers. Although categorized as separate from blotting paper, differences in the constituents and thickness of blotting paper and watercolor paper are subtle, making a distinction between the two is unnecessary as the production process is nearly identical. Blotting paper is used in chemical analyses as stationary phase in thin-layer chromatography. Blotting paper is used in pool/spa maintenance to measure pH balance.
Small squares of blotting paper attached to disposable plastic strips are impregnated with pH sensitive compounds extracted from lichens Roccella tinctoria. These strips are used to litmus strips, however filter paper is used for litmus strips to allow for the property of diffusion. Drugs active in microgram range, most notably LSD, are distributed on blotting paper. A liquid solution of the drug is applied to the blotting paper, perforated into individual doses and artfully decorated with what is known as blotter art. Vanity blotter is blotter art that hasn't been exposed to LSD and is sold as a collectible, although much of this art ends up in illegal distribution; the artwork is printed onto blotter paper and sometimes perforated into tiny squares or "tabs" which can be torn or cut apart. Most blotter art designs have grid lines as part of the design to either aid in perforation or to be left as a cutting grid. Blotter as a delivery method allows for easy dosing of potent substances and easy sublingual administration of drugs which has made it popular as a preparation for other potent drugs including 25I-NBOMe and alprazolam.
Plain white LSD blotter without artwork is referred to as WoW and is not perforated but rather gridded with a pen and sometimes laid on obtained watercolor paper. Blotting is necessary when using dip pens and when using fountain pens; this was first done by sprinkling pounce over the wet ink. When used to remove ink from writings, the writing may appear in reverse on the surface of the blotting paper, a phenomenon, used as a plot device in a number of detective stories, such as in the Sherlock Holmes story The Adventure of the Missing Three-Quarter. Blotting papers are commonly used in cosmetics to absorb excess sebum oil from the face, they are popularly marketed and have been sold by numerous cosmetic brands worldwide such as Mac and Bobbi Brown, as well as UK high street store: Boots UK. Prices for blotting papers can range from as low as $3.00 per packet to as high as $30 or more. More affordable brands can be found by makers such as Clean and Clear and pharmacies such as Walgreens or CVS carry their own brands for a reduced price.
The papers are dyed, for wider market appeal, dusted with salicylic acid and minerals to prevent the formation of comedones and acne. However, there is a popular debate of whether blotting papers can help reduce acne by absorbing excess oil, or cause it; the quality of the blotting papers and the use of other ingredients such as mineral oils may be a determining factor
Dó paper is a paper made from the inner bark of the dó tree and traditionally produced in many villages in Vietnam. It plays an important role in Dong Ho Painting in particular, because of its durability; the production process includes some stages. First, the bark is soaked in limewater for three months. Second, the black outer bark is husked off and ground by mortar and pestle before being blended with a viscous substance made from a plant belonging to Verbenaceae family; this mixture is diluted to form a slurry. A bamboo mold is removed. Paper fibers adhere to the mold in a thin sheet, pressed, dried and dried again; the final product must be soft and durable. Due to its durability, this paper found many uses in traditional Vietnam, including the making of books and documents
Parchment paper, baking paper, or bakery release paper are cellulose-based papers that have been treated or coated to make them non-stick. They are used in baking as a disposable non-stick surface, they should not be confused with wax paper or waxed paper, paper, impregnated with wax. Modern parchment paper is made by running sheets of paper pulp through a bath of sulfuric acid or sometimes zinc chloride; this process dissolves or gelatinizes the paper. This treatment forms a sulfurized cross-linked material, with high density and heat resistance, as well as low surface energy — thereby imparting good non-stick or release properties; the treated paper has an appearance similar to that of parchment and, because of its stability, is sometimes used in legal documents for which parchment was traditionally used. The non-stick properties can be achieved by employing a coated paper, for which a suitable release agent—a coating with a low surface energy and capability to withstand the temperatures involved in the baking or roasting process—is deposited onto the paper's surface.
A common use is to eliminate the need to grease sheet pans and the like, allowing rapid turn-around of batches of baked goods. Parchment paper is used to cook en papillote, a technique where food is steamed or cooked within closed pouches made from parchment paper. Bakery paper can be used in most applications; the reverse is not true, as using wax paper will affect taste. Coated paper Dough Greaseproof paper Release liner
India paper is a type of paper which from 1875 has been based on bleached hemp and rag fibres, that produced a thin, tough opaque white paper. It bulks 1,000 pages to the inch, it became popular in particular for the printing of Bibles, which could be made small and light while remaining legible. The 1911 Encyclopædia Britannica boasted, "Printed on thin, but strong opaque India paper, each volume but one inch in thickness." The process was used by the Oxford University Press and its paper suppliers. The name arose. India paper has often been used for the printing of die proofs of postage stamps. Bible paper
A display board is a board-shaped material, rigid and strong enough to stand on its own, used paper or other materials affixed to it. Display board may be referred to as poster board. Along with quad charts, display boards were an early form of fast communication developed by the National Weather Service of the United States Department of Commerce's National Oceanic and Atmospheric Administration. Traditional tri-fold display boards are single sheet corrugated boards divided into three panels by score marks; the two outside panels are half the width of the center panel. Placed on a table, they are more stable and able to stand while still giving a theater-like view. Header boards can be added to the top display board and an easel stand can be attached to the back. In North America, display boards are used by students in the public school system for science, social studies, English projects. Outside the classroom, students use display boards to promote clubs, recognize athletics and display art projects.
The purpose of the display board in that context is to catch the viewer's attention and explain what was performed and what was learned. Outside school, display boards are used for business trade shows, genealogy, life celebrations and crafts, memorials. Science fair display boards are required to follow published guidelines. Board contents include Project Title, Question, Background, Materials, Results and Future Directions; such display boards contain images and figures in addition to text. An interactive display board may be made by attaching an electronic multimedia device such as a tablet to a display board. Methods for attaching tablets to display boards include cutting a window into a display board and fixing a pocket behind the window to insert and hold the tablet, pushing pins into the face of a display board with the tablet resting on the pins, attaching a lanyard to the tablet in order to hang it on the display board, or using dual sided adhesive tape to attach the tablet to the display board.
Projex Boards manufactures a display board for tablets, with a pocket and header board. The purpose of tablet display boards is to hold the tablet at eye level on the display board to facilitate better communication between audience and presenter; some tablet interactive display boards have apertures for electrical cords in the form of openings at the bottom of the display board
A mesh strainer known as sift known as sieve, is a device for separating wanted elements from unwanted material or for characterizing the particle size distribution of a sample using a woven screen such as a mesh or net or metal. The word "sift" derives from "sieve". In cooking, a sifter is used to separate and break up clumps in dry ingredients such as flour, as well as to aerate and combine them. A strainer is a form of sieve used to separate solids from liquid; some industrial strainers available are simplex basket strainers, duplex basket strainers, Y strainers. Simple basket strainers are used to protect valuable or sensitive equipment in systems that are meant to be shut down temporarily; some used strainers are bell mouth strainers, foot valve strainers, basket strainers. Most processing industries will opt for a self-cleaning strainer instead of a basket strainer or a simplex strainer due to limitations of simple filtration systems; the self-cleaning strainers or filters are more efficient and provide an automatic filtration solution.
Sieving is a simple technique for separating particles of different sizes. A sieve such as used for sifting flour has small holes. Coarse particles are separated or broken up by grinding against screen openings. Depending upon the types of particles to be separated, sieves with different types of holes are used. Sieves are used to separate stones from sand. Sieving plays an important role in food industries where sieves are used to prevent the contamination of the product by foreign bodies; the design of the industrial sieve is here of primary importance. Triage sieving refers to grouping people according to their severity of injury; the mesh in a wooden sieve might be made from wicker. Use of wood to avoid contamination is important. Henry Stephens, in his Book of the Farm, advised that the withes of a wooden riddle or sieve be made from fir or willow with American elm being best; the rims would be made of fir, oak or beech. A sieve analysis is a practice or procedure used to assess the particle size distribution of a granular material.
Sieve sizes used in combinations of four to eight sieves. Designations and Nominal Sieve Openings Chinois, or conical sieve used as a strainer sometimes used like a food mill Cocktail strainer, a bar accessory Colander, a bowl-shaped sieve used as a strainer in cooking Flour sifter or bolter, used in flour production and baking Graduated sieves, used to separate varying small sizes of material soil, rock or minerals Mesh strainer, or just "strainer" consisting of a fine metal mesh screen on a metal frame Riddle, used for soil Spider, used in Chinese cooking Tamis known as a drum sieve Tea strainer intended for use when making tea Zaru, or bamboo sieve, used in Japanese cooking Cheesecloth Cloth filter Gold panning Gyratory equipment Mechanical screening Molecular sieve Separation process Sieve analysis Soil gradation Filter
Banana paper is used in two different senses: one refers to a paper made from the bark of the banana plant and, used for artistic purposes. This paper can be either machine made; the banana agricultural industry processes 42 million tonnes of bananas every year. As a result of pulling apart the banana bunches from the main stem, there are leftover stems which contain 5% of fiber useful for the manufacture of paper. How Banana Paper is made