Pressroom Hints and Helps (Volume 28; No. 1918); Describing Some Practical Methods of Pressroom Work, with Directions and Useful Information Relating to a Variety of Printing-Press Problems (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1918 Excerpt: ... When a quantity of tint ink, 10 pounds or more, is required for a job, it is more economical to have the ink maker do the mixing. Electricity In Paper Stock that has been stored in a cold room for some time and taken to the pressroom without being at least twentyfour hours in a warm room before being run through the press will often develop electricity to such an extent that the feeder cannot readily separate the sheets for feeding. This will be found more troublesome in high-finish S. S. & C. and coated papers with a gloss-like finish. It can be overcome by moist heat. Open one or two of the pet-cocks in the steam-pipe or radiator near the press, and let the steam escape until the air in the room is moist, and the sheets will not stick. In damp or rainy days there is not much trouble from electricity if the press-room is warm. The greatest trouble comes when the sheets develop electricity in running through the press; sometimes the sheets will stick to the delivery or fly to such an extent that it is impossible to deliver the sheets on the table, for they will follow the delivery on the back strokes. At other times the sheet will deliver all right but will stick to the next one on the table. These troubles can be partially overcome by oiling the top sheet, stripper fingers, tapes and fly sticks with threein-one oil or glycerin; but this lasts only about an hour. The heat from a line of gas jets placed under the sheets as it comes from the delivery is another method frequently used with success. --C The Chapman Neutralize is an appliance that has been generally successful in overcoming static electricity in paper. Handling Paper The paper should be delivered to the pressman on platforms or trucks at the back of the press, handy to the feeder if the mac...