What is paper paper clay?
Paper clay is a clay that is mixed with shredded paper or other fibers. These fibers create a very strong and versatile clay that is also lightweight. It's perfect for building ceramics of any size, including very large pieces that would be extremely heavy with standard clay.
What is archival paper and why is it important?
Archival paper is an especially permanent, durable acid-free paper. Archival paper is meant to be used for publications of high legal, historical, or significant value.
Can you use paper clay to repair clay?
It is widely used by potters to repair cracks in dry, conventional clay, as well as dry paper clay. Thinner and taller work can be built with partially dry or completely dry paper clay. Re-wetting paper clay is faster with paper clay than pure clay, as the paper fibres pull water more quickly into the clay body.
What is archival paper made of?
Often, cotton rag paper is used for archival purposes, as it is not made from wood-based pulp. Thus, "archival paper" is sometimes broken down into two categories: Conservation-grade — acid-free, buffered paper made from wood-based pulp.
How long does paper clay last?
about two weeksThe shelf life of homemade paper clay is about two weeks, so it needs to be used up quickly; if kept for longer, the organic cellulose starts to break down and decay (Kathleen discusses the health issues around this in Chapter 3 of Additions to Clay Bodies).
How do you preserve paper clay?
0:444:11How to Store Different Air Dry Clays (4 Ways) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo make sure is barely damp. Make sure it covers the entire opening. If your paper clay has any roomMoreSo make sure is barely damp. Make sure it covers the entire opening. If your paper clay has any room for as much as a package as possible.
Is air dry clay archival?
With sculpting materials like bronze and ceramic often the medium of choice, an air dry clay that is archival (or museum-quality) can reassure collectors, and also give you piece of mind that in 20 years the sculpture will not disintegrate.
Can you store paper clay?
If stored properly, unused air dry clay should last indefinitely. We recommend wrapping the unused clay in plastic wrap or in a Ziploc bag, and then in another airtight container.
What is paper clay good for?
Paper clay is a clay that is mixed with shredded paper or other fibers. These fibers create a very strong and versatile clay that is also lightweight. It's perfect for building ceramics of any size, including very large pieces that would be extremely heavy with standard clay.
Is paper clay the same as air dry clay?
If you're just making things for around your home, have at it! But just remember to be careful with these pieces. For me, 'paperclay' generally refers to an air dry clay that has had a cellulose base added to it, like Creative Paperclay. The result is that the clay is very lightweight when dry.
Does air dry clay deteriorate?
If the clay recipe has high shrinkage and the outside shrinks too much faster than the inside (the thicker the clay, the more effect), the weakest area gives way. You end up with one or more big cracks. With earth clay, big cracks would be a sign that widespread serious deterioration has already occurred.
What kind of clay do you use for mugs?
StonewareStoneware fired to maturity is usually suitable for use in dishwashers and microwaves. This makes it an ideal clay to make tableware with – everyone loves mugs! Porcelain is the highest firing clay. If you intend to use it make sure your kiln is capable of reaching the required temperature.
Which is better polymer clay or air dry clay?
Polymer clay also won't shrink while it is hardening, unlike air dry clay. Another important difference is that polymer clay is known to be more durable than air dry clay after baking. Once polymer clay is baked, it is waterproof and long-lasting. Meanwhile, air dry clay has the tendency to dissolve in heat or water.
Does paper clay crack?
The cracking is caused by shrinkage because of the loss of the water inside the clay body.
How do you keep paper clay from drying out?
The very best way to keep your clay from drying out is to store it in tightly sealed containers. I have used heavy duty ziplock bags and had much success with that simple method. Whatever container you use, you want to be able to keep the moisture level of the clay at the same place as when you first got your clay.
How do you preserve soft clay?
It is best to store your clay in tightly sealed bags to preserve the moisture content of the clay. Ideally, you will want to store your clay in a dark and cool environment. In cold climates, avoid allowing clay to reach freezing temperatures.
Can you rehydrate paper clay?
It's easy to make, and when you need to reconstitute the paper clay, just break up the slabs into smaller pieces, add water to the desired consistency, and you're quickly resupplied.
How do you make paper clay stronger?
PVA glue (or white Elmer's glue) holds those tiny paper fibers firmly together when it dries. You can incorporate some PVA glue directly into the small chunk of clay and knead it. Or mix the glue with water and use this mixture instead of clear water while sculpting. This trick makes the clay very firm and durable.
Does paper clay get hard?
After a day or two it will be as hard as a rock. Don't apply paint or varnish until it's completely dry. Paper clay works well with any type of paint or varnish you wish to use. Store leftover clay in an airtight container.
Is paper clay waterproof?
When it dries, the paper hardens and becomes more durable and difficult to break. However, it doesn't become waterproof. If you're leaving your paper mache statue outside or accidentally spill water on it, the water will moisten the paper and make it brittle and easy to peel.
Why use paper clay?
Improved Structure. Paper clay is also brilliant to use if you are making either a large structure or thinner, more delicate work. The added internal strength of the body clay means that the work can support itself. This also makes it much easier to transport.
What is paper clay made of?
Extra-Strength Clay. Paper clay is made by mixing regular clay with paper pulp. The paper fibers create a strong structure within the clay. This "capillary system" also transfers moisture easily and evenly throughout the clay. Paper clay can be made with a variety of different clays, including terracotta, porcelain, earthenware, and stoneware.
Why does paper clay dry faster than regular clay?
Paper clay typically dries more quickly than regular clay because the moisture tends to evaporate much faster. Potters are also known to "force dry" paper clay as drying the work more quickly reduces the chances of it cracking.
How long to mix paper fiber for clay?
Pour three handfuls of your paper fiber into your clay slip at a time. Mix well for about 20 minutes, making sure the consistency is completely smooth.
How to prevent mold from developing in clay?
If you’re using paper fibers like newspaper or printer paper, you will want to prevent mold from developing. To do this, mix in one tablespoon of bleach and then re-mix it before adding it to the clay slip.
How much paper do you need to make a heavy piece of clay?
You’ll need clay slip and paper pulp. Generally, you will need two gallons of recycled clay slip to make 10 to 15 pounds of clay. If you’re using paper fibers like newspaper or printer paper, you will want to prevent mold from developing.
Can you fire clay at a higher temperature?
However, some potters do fire paper clay at a slightly higher temperature. Be aware that the extra fibers which make the work so strong can also make the fired work more porous. During firing, the paper fibers burn away and this can make the work slightly more fragile to handle afterward.
What is archive paper?
Archival paper is an especially permanent, durable acid-free paper. Archival paper is meant to be used for publications of high legal, historical, or significant value. ... Conservation-grade — acid-free, buffered paper made from wood-based pulp.
What is acid free paper?
Acid-free paper - Wikipedia. Paper made from wood-based pulp that has not had its lignin removed turns yellow, becomes brittle, and deteriorates over time. [2] . When exposed to light and/or heat, the molecules in the acidic paper will break down even faster. [3] .
How long does photo paper last?
Archival photo paper is normally measured by how many years the image will last and keep its original colours without change or fading. Some manufacturers promise 25 years and some 150 years. This can be put to the test and can be measured by a special machine. Sponsored by Elated Stories.
Why is bicarbonate added to paper?
The bicarbonate is added in excess, to supply the paper with an alkaline reserve to provide protection from further attack by acids remaining in the paper or supplied by the environment (e.g. atmospheric sulfur dioxide ). [5] .
Is deacidification spray more expensive than archival?
Yes, but it’s far more expensive than simply buying archival grade paper in the first place. Deacidification spray treatment costs about $45 per can (which is about the size of, and provides the coverage of, a spay paint can) so it isn’t economical to treat pulp paper for archival use. 940 views. ·.
What is an archival paper?
Archival paper is an especially permanent, durable acid-free paper. Archival paper is meant to be used for publications of high legal, historical, or significant value. In the USA, such paper must also be approved in accordance with the ANSI standards. The international standard for "permanent" paper is ISO 9706 and for "archival" paper, ...
When did acidic wood pulp paper become commonplace?
Acidic wood-pulp paper became commonplace in the late 19th century, and in the 1930s William Barrow (a chemist and librarian) published a report about the deterioration of acidic paper in the libraries. For fear of the gradual disintegration of written materials, measures have since been taken to improve the quality of paper.
When was acid free paper invented?
The company Hercules Incorporated developed the first alkaline sizing in the 1950s that made acid-free paper possible. Despite the advances in paper making and the identification of and concern around the brittle book problem, it took decades before the adoption of ANSI NISO Standard Z39.48-1984 - Permanence of Paper for Publications and Documents in Libraries in 1984. This voluntary standard covered pH value, tear resistance, alkaline reserve, and lignin thresholds for paper to last thousands of years and was developed to encourage the use of acid-free paper in library materials. The development of the initial standard was a result of the work of the Council on Library Resources, which effectively lobbied ANSI to adopt the guidelines.
Why is alkaline paper better than other paper?
Because there are fewer corrosive chemicals used in making alkaline paper, the process is much easier on the machinery, reducing downtime and maintenance, and extending the machinery's useful life. The process is also significantly more environmentally friendly.
Why is bicarbonate added to paper?
The bicarbonate is added in excess, to supply the paper with an alkaline reserve to provide protection from further attack by acids remaining in the paper or supplied by the environment (e.g. atmospheric sulfur dioxide ).
When was the NISO standard for uncoated paper established?
In 1986 , Standards Committee II of NISO was established to expand Z39.48-1984 to develop standards for coated paper, and was again called upon in 1988 to review and revise the standards for uncoated paper. There are various standards for "acid-free" paper, with differing requirements.
How long does bicarbonate paper last?
In order for paper to last at least 100 years it must have an alkaline reserve of 2% or more.
What is paperclay used for?
It depends on what you are making and your preferences. I've mostly seen it used in hand-built items and/or sculptural works; have not seen it used for functional wares -- but my experience with it is limited to firing other folks work at a community studio. Just another tool in the toolkit. At greenware stage, it can be quite fragile as most people use it to go for thin walls or make large slabs for brushwork, decals. After bisque, where the paper is burned out, you have . . . regular old bisque clay that is no different, from a composition standpoint, than wheel-thrown or hand-built wares.
Can you carve out paper clay?
Yes, you still have to carve out a solid paper clay sculpture. The paper pulp makes the clay more porous and somewhat lighter because of that, but all the gasses and water vapour still need to burn off from the centre of the piece. You in fact have additional gasses to burn off because of the paper fibre combusting, which can exacerbate any of the usual complications if you don't dry and bisque properly.
Why use archival bond paper strips?
Strips of archival bond paper serve a useful function in addition to the primary goal of protecting weak paper. Use of the strips in conjunction with a fastener signifies that the paper clip or staple employed meets archival standards and does not have to be replaced. This becomes increasingly important with the passage of time as institutional memory fades, since it is often impossible to differentiate between office and archival quality fasteners on the basis of visual inspection.
Why do we use paper cups?
Paper cups or similar receptacles should be used to collect all fasteners as they are removed. This practice prevents accidental damage that may result if records are placed at a work station covered with fasteners and miscellaneous debris.
Can paper records be kept together?
In such cases, groups of records should be maintained together through the use of folders or folded interleaving sheets (made of archival bond paper) placed within folders.
Can you use staples on paper?
They should not be used on records of high intrinsic value or on records that are weak and brittle. Staples create small puncture holes in documents and since staples are removed and replaced periodically for photocopying or other purposes, a large number of holes can result, with the effect of weakening the paper. When staples are used, they should be positioned through strips of archival bond paper as described above, to help support and protect the documents. ( See Supply List)
Can you separate documents that are held together by wax seals?
No attempt should be made to separate documents that are held together by paper or wax seals or wafers, or that are adhesively attached with lines or dots of paste or glue. If such items must be separated to allow for the safe handling, use, or filming of the records, they should be sent to a conservation laboratory where ...
Can you use a staple remover on a fragile document?
Staple removers should not be used on fragile or brittle documents, as they easily remove an entire weak or brittle corner with the intended staple. A staple remover can be used with care, however, on paper that is strong and flexible; this is often a practical necessity when faced with masses of archival records needing processing. When using a staple remover, the document must be supported flat on a table top. The staple remover should be used from the back to lift the shanks of the staple. Once opened, the staple should be carefully removed from the front.
