US1344570A - Cqichawt - Google Patents

Description

Pamnted June 22, 1920 the blending box 10, where it passes around a series of bales l1 and thence over the apron or facing slip 12 on to the paper base :formed on the wire apron, the distance between the outlets of t ie flow box 5 und the blendin r box 10, and the speed of movement o the wire apron 7 therebetween, being such that the paper base is suitably formed at the time 1t reaches the blending box for reception of the blending stock to produce the cloudy coating of desired appearance and effect.

When the speed of travel of the wire apron is that commonly employed in the manufacture of ordinary paper, the blending box l() is preferably located 20% to 25% of the distance between the slices 14, which level the paper base, and the couch roll 15 around which the Wire apron passes, that distance, however, de )ending u )on the freeness of the stock. The mast rol f6, the table rolls 17 und the suction boxes 18, are provided in accordance with well known practice in the art. After the )aper runs off the wire apron, it is dried, pressed and rolled like other wall papers.

The paper stock is suitably colored as desired and is of about the same consistency ns that used in the manufacture of wall paper or other paper. The wood flour preferably consists of about 99 to 99-1f% of water, and the remaining part of wood fiber ground to roper fineness. The fiber is preferably ofppoplnr, although spruce, balm of gilead, bass wood, white wood, pine, or almost any other kind of wood is suit able for the purpose. Regulation of the prolmrtion of paper stock und wood flour is made by men-ns of the valve 19.

The blending stock is generally white but may be of any suitable color. und preferably it has a thin consistency represented b about 99 parts water and 1 part wood fiber ground very fine. It is desirable that the stock be delivered uniformly and in regulated amounts on to the aper base. For this urpose the blending ox is provided witl a number of valved inlets like 13 along the width of the wire aaron and the last baiie board 11 is prefer-n ily regulatable vertically to vary the thickness of the blending stock delivered to the facing strip 12, which is preferably curved as shown to deliver the stock more uniformly sult of the udmixture, thereby rendering the cloud el'ect produced by the blending stock softer, more pleasing to the eye, and giving it a greater degree of, visionary depth.

It will be observed from Fig. 2 that the blending stock 20 is spread lightly on a darker background of peper base 21 broken up or roughened by a more or less regular occurrence of the wood flour particles 22, and forming thereby a cloud effect having visionary depth to a marked degree. Furthcrmorc, the papel-is soft, impiessionistie and artistic, and is devoid of the harshness, sharp definition and glare characteristic of the so-cnlled marble papel' used for wrappin l1g. 3, illustrating the back surface of the paper, also serves to indicate how the wood Hour particles 22 break up the reflecting surface so that the addition of the blendin Stock to it produces the characteristic cloud effect of visionary depth,

Havinfv thus described my invention, what I c aimis:

1. The method of making Wall paper with a cloud effect of visionary depth, which consiste in forming a base of paperlstock combined with wood flour to break up the light reflecting surface of the pa er, and flowing n blending stock on the snr ace thereof.

2. A wall paper vhaving a base with alight reflecting surface broken up by woodilour, sind a blending stock forming a cloud effect thereon. y

3. A wall paper having a base of paper stock mixed with a material breakin up the light reflecting surface thereof, an also having a blending stock forming a cloud effect on the top surface of the base.

In testimony whereof I allix my signature.

JOI-IN JAMES WARREN.

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