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Bat Printing on Pottery and Porcelain by Maurice Robertson

The invention of transfer printing on porcelain and pottery was, without doubt, one of the most important innovations in the development of the ceramic industry.

The honor of this development goes to the English engraver, Robert Hancock, born in Birmingham (1730-1817). We first meet Robert, recorded as a copper plate engraver at York House, at Battersea's enamel works in London.

Here, beautiful little copper boxes were made for the English 18th century luxury market and quite costly objects of vertu, the so-called bijouterie, scent bottles, little snuff boxes and practical wares, such as boxes to contain sewing implements, toothpicks, trays to hold pens, canisters for tea and sugar and even candlesticks, designed to imitated expensive silver pieces.

In 1756 the Battersea factory closed and we next find Robert at the Worcester porcelain factory in the same year. Robert Hancock had obviously taken his knowledge and expertise to the factory management, under the direction of Dr John Wall. The management was highly impressed with the idea of this rapid decoration technique!

Since the opening of the factory in 1751, porcelain painting had been a laborious and expensive process, undertaken by painters with coloured powdered enamels, mixed with lavender oil and brushes.

Robert was able to teach his printing skills and the process was soon mastered with the first, famous, copper plate engraved, black transfer print being produced in 1757. The subject being Frederick the Great, King of Prussia, ally and hero of the seven years war.

Transfer printing as developed at Battersea, began with the unique skill of the copper plate engraver, who deeply engraved, with a fine sharp steel, the desired design. The design was engraved in reverse!, allowing the final print to appear "right way around".

Pigment was then added, often mixed with oil and heated to allow the colour to run deeper into the copper plate engravings, the excess ink then wiped away with a palette knife. The copper plate, after being cleaned off with a cloth was then covered with a sheet of tissue which was dampened and pressed onto the plate. Next, the tissue was gently lifted from the plate and set carefully onto the shape to be printed. As the tissue was deftly lifted away, the design was left behind. This early printing style left the print on top of the glazed item, which was then fired to finally set the print onto the glazed surface.

As the 18th century turned into the early 19th century, new ceramic printing techniques were developed, to not only improve the technique, but make it faster, time is money! The great name at this point is Josiah Spode who is credited with the introduction of under glaze blue transfer printing into Staffordshire, during 1781-84.

During the early 1800's, the tissue was replaced by a sheet of paper, or sometimes fabric. With a layer of glue applied, this could easily be cut and shaped to fit around curved objects such as dishes and teapots. This is known as the "bat" print and gives the process its alternative name "bat printing".

The inked bat was then placed on the ceramic object and an impression left, leaving the print adhering to the shape. The item was then dipped into the glaze and returned to the kiln for the glost, or, low firing. The glue bats were reusable, plus they conformed better to curved surfaces. Cobalt blue, under glaze transfer printing became a standard of the Staffordshire pottery industry.

Men like Josiah Spode, Wedgwood, Thomas Minton and others, were all entrepreneurial types and leading figures of the great Staffordshire ceramic industry.

While sharing amicable business relationships, each kept an eye on the market! It was at this time that large export markets were opening or expanding in North America, Europe, and India where consumers sought elegant, matched sets of wares.

The Antique & Vintage Table Lamp Co specialise in antique table lamp lighting with an on-line range of over 100 unique, antique and vintage lamps on view. Lamps are shipped ready wired for the U.S, the U.K and Australia. For more information you are invited to visit their web site at -:
http://www.antiquelampshop.com
© The Antique & Vintage Table Lamp Co 2009

Article Source: http://www.earticlesonline.com/Article/Bat-Printing-on-Pottery-and-Porcelain/540398

Anyone know a site that will help me find out how old some vintage ceramic Piggy Banks I found are ?

I have a collection of old ceramic / pottery piggy banks I got from someone who has been collecting them for years and I can't find a good web site that will help me date them and determine their value. Any help would be appreciated.
Thanks

Here are some sites below;
A lot of them will be able to help you with your quest.
http://www.associatedcontent.com/article/91455/collectibles_vintage_piggy_banks.html - Info
http://korfforiginals.com/piggy_bank_history.html - History

http://www.piggybankworld.com/Vintage-Norco-Piggy-Bank-p-2278.html

http://www.antiquescove.biz/Store_Items/banks.html

http://search.ebay.com/vintage-ceramic-piggy-bank_W0QQfkrZ1QQfnuZ1QQfsooZ2QQfsopZ32

http://korfforiginals.com/piggy_bank_history.html

http://www.cyberattic.com/directory/Banks60.html - Research and you can ask here and sell
http://reviews.ebay.com/Collecting-Buying-and-Selling-BLUE-WILLOW-CHINA-on-EBAY_W0QQugidZ10000000000951092?ssPageName=BUYGD:CAT:-1:SEARCH:1 Guides
http://search.rubylane.com/collectibles/,id=80.5.3,page=3,style=2.html you can ask here
http://www.antiqnet.com/category,banks-27.html -you can ask here

http://www.collectible-treasures.com/catalog/items/item1959.htm

http://www.piggybanktycoon.eza.biz/?gclid=COaA5O-HyY0CFRHzPgodLG5A5A

Below are antique appraisers. do one or more of the following to help and aide you in your search;
LINKS to ANTIQUES Websites and Research Resources;

http://www.100tonsofstuff.com/links-antiques-resources.htm

http://www.eppraisals.com/index.cfm?fuseaction=wiw2u.templates&templates_ID=57%E2%8C%A9=E

http://www.business.com/directory/retail_and_consumer_services/home_and_garden/antiques_and_collectibles/index.asp?err5=true

http://www.appraisal-101.com/

http://www.keepmecurrent.com/services/index.cfm

More Appraisal sites on link below;

http://ca.search.yahoo.com/search?p=antique+ceramic+Piggy+Bank+appraisers&ei=UTF-8&fr=ks-ans&x=wrt

Antiques Road Show - http://www.pbs.org/wgbh/pages/roadshow/s... appraisers online Free
http://www.canadianantiquesroadshow.com/... This one is for the Canadian Antiques Roadshow. Free

If need be, take good clear photographs of the artist's signature, marks and pottery, then go to http://photobucket.com/ or http://photobucket.com/ for free, and Up load and post the photographs of your piece to show to one of the reputable appraisers listed,should they ask you to submit them on line.