US323378A - Hirrolyte vessier and amedee - Google Patents

Description

(No Model.)

H. VESSIBR 8u A. WILBAUX.

GOLD PROCESS OF MANUFACTURINGPAPR PULPAND BLEAGHED 0R UNBLEAUEED TEXTILE FABRIC.

No. 323,378. j Patented July 28, 1885.

IW y y l lnrren STATES PaTnNT @lirica HIPPOLYTE YESSIER AND AMDE WILBAUX, OF PARS, FRANCE.

COLD PROCESS 0F MANUFACTURING PAPER-PULP AND BLEACHED 0R UNBLEACHED TEXTILE FABRIC.

SPECIFICATION forming part of Letters Patent No. 323,378, dated July 28, 1885.

.Application tiled December S, 1884. (No model.) Patented in France May 14, 1884, No. 149,596, and in Belgium Catcher 23, 1884,

Nolte, G11.

To all whomz'zmay concern:

Be it known that we, HIPPOLYTE VESSIER, chemist, and AMDE W1LBAUX, engineer, both of Paris, France, have invented an Improved Gold Process ol' M anutacturin g Paper- Pulps and Bleached or Unbleached Textile Fibers, and Apparatus Therefor, (patented in France, May let, 1884, No. 149,596, and in Belgium, October 23, 1884, No. 66,67l,) of which the following is a specification.

The obiect ot' our invention is to produce by a cold process papcr-pulps and bleached or unhleached textile bers by means of any snccedaneum, text-ile plant, or textile suitable for such product ion-such as the various kinds otstraw, the altas, diss, brooms, ivd-and also llax, hemp, cotton, Svc.; also, old paper,

either white or colored, and covered or not E with print or writing, rags, die.; also, the variouskinds of timber, dyewood,&c.,the Whole of the said process comprising a succession of the following operations:

I. Gold Zi.,li'1atioa.-All the above-mentioned n'iaterials are treated by an immersion for a period of from one to eight hours, according to the nature of the raw material to be treated in a chemical bath of low temperature composed ot' a solution of caustic soda, weighing from 100 to 2:50 Baume, which depends on the material to be treated. rlhe base of the bath being soda, the soda salt or carbonato oi' soda may be used, with the addition of iiity per cent. ol' fat lime, previously dissolved by sten-m, and drawn ottA when the desired degree is reached. After the treatment by the bath, the materials are triturated-say in a washing-engine it' they be rags, or in a grinding-mill ifthey be vegetable substances, old paper, &c.-and textile fibers adapted to be spun are washed and bleached on being removed from the bath, in the usual manner.

Il. brushing, bleach/zing, and Irinsii/ f-'lhe pulps obtained in the reducing-engine or grindingunill, on being removed therefrom, are placed in a,- spccial washing and bleaching machine, wherein the washing, bleaching, and rinsing of the materials in treatment are successively effected without such materials leaving the machine.

This apparatusrepresented in the accomi panying drawings, in which Figure l is a sectional elevation, and Fig. 2 a horizontal section thereof-consists of the following parts, viz:

A is the driving-wheel, wedged upon a vertica-l shaft, B 5 B, the vertical shaft, carrying arms g, every two and two of which are dia-` metrically opposite to each other, and which moves in socket C; D, a cylinder or a piece of masonry, within which stationary armsf are provided, every two ot which are also diametrically opposite each other; F, a perforated tilteringplate; E, a head provide-d with radii or arms d, adapted to support the. perforated copperplatc F 5 G, a lateral port or valve arranged directly above said perforated copper-plate and adapted to allow of the pulps flowing out ot' the apparatus; I, a lateral valve or cock, provided directly above the bottom ot the apparatus, for recovering the chemical substances employed for the bleaching, so that the reemployment of the same should become possible; H, another lat eral valve or cock, also placed immediately above the bottom of the apparatus, vfor the escape of the water havin g served for washing and rinsing', K, the feed-valve for supplying the apparatus with water, L, another feed-valve for the supply of the chemical substances required for the bleaching operation.

The operation now takes place as follows: The apparatus is charged with from two hundred and il'ty to three hundred kilograms of the produce obtained from the reducing or grinding engine; then water-supply valve K is opened, and when the apparatus is filled circulation is provided for by opening discharge-valve H, while a rotary motion of from ten to twenty revolutions per minuteis imparted to vertical shat't B and its arms g. When the water issuing through valve H is perfectly clear, feed-cock K is closed, the products are drained oit to the required extent, and coclrLis opened and left open, so as to supply a sufficient amount of chemical substances. Now the agitating device is set into motion and operated until the material acquires the desired whiteness. When the material has thus become sutticiently white, valve l is opened to allow of recovering the chemical substances just used,

IOO

. sodium.

while the material treated is allowed to drip off. rllhe material being thus drained, the valve is closed and the rinsing operation is now proceeded to in the same way as the washing was effected. This being accomplished, side port, G, is opened, so as to allow of thevremoval of the pulps, and the apparatus thus emptied is prepared for the same operation again.

III. The bleaching piepen-The bleaching is effected by means of a peculiar chemical combination, composed as follows: one part of chloride of lime and seven parts of chloride of These quantities and proportions, however, may be varied according to the character of the particular matters used.

The advantages of the invention hereinbefore described may be summed up as follows: First, fuel is altogether dispensed with in the lixiviation, and thus all accidents caused by the bursting of the liXiviating-vessels are prevented second, a considerable amount of material is saved comparatively to that generall y used for the manufacture of paper-pulp, and thereby a material reduction of costs is obtained,from the fact that the factories need not be so extensive; third, the operations may be accomplished with an unusual velocity, as the whole, including baths, trituration, washing, whitening, and rinsing, requires no more than twelve hours work for any of the above-named substances; fourth, the amount of useful matters yielded by the apparatus is by far superior to that obtained by ordinary means, the quality of such matters being better, owin g to the chemical treatment which in the lixiviation and whitening operation carried out according to our invention is substituted for the hot treatment; fifth, greater facility is afforded for the 're-employment, without the addition of any fresh substance, of old paper covered with print or writing, colored or otherwise, for the manufacture ot' white foolscap or other paper, our chemical treatment increasingthe strength ofthe fibers in lieu ofreducing the same; sixth, fuel may be completely dispensed with wherever waterpower is obtainable.

l/Ve are aware of Patents Nos. 10,518, 31,814, and 131,991, and claim nothing described in the several patents. Our invention differs essentially from either, from the fact that we do not boil or wash after our cold chemical lixiviation, which if done would result in a great vastation in the yield, and a complete loss of the chemical produced. fe do not use boraX, but chloride of sodium, or common salt, added to chloride of lime, in a proportion variable with the materials under treatment, but substantially one part chloride of lime to seven parts chloride of sodium, and this we do in order that the chloride of sodium may make the color soluble in water, and, further, to stop the natural action of the chloride of lime, and so prevent the burning of the fabrics.

So soon as the action of the bleaching combination has been arrested by the chloride of sodium iu excess, the chemical combinations are withdrawn from the apparatus and recuperated. The material under treatment must be washed, and the apparatus again supplied with the recuperated chemical bath, which has restored to it all the power of bleaching, and thus the delicate process of bleaching is performed without possibility of burning the material under treatment.

Having now fully described all parts of our invention and the manner of carrying the same into effect, what we claim,and desire to secure by Letters Patent, is-

1. The cold lixiviation of allthe substances that are or may be used for the manufacture of paper or textile fibers by means ofthe process hereinbefore described and grounded upon the chemical compound specified.

2. The washing, whitening, mdrinsing, in one single apparatus arranged substantially as set forth with reference to the accompanying drawings, such operations being carried out successively without the matters in treat- 9o ment having to be removed from the apparatus.

3. The bleaching operation effected by means of the chemical compound herein described.

4. The whole combination of the operations mentionedin the preceding claims, so united as to constitute the above-described cold process ofmanufacturin gpa-per-pulp and bleached or unbleached textile fibers.

In testimony whereof we have signed our names to this specification before two subscribing witnesses.

HIPPOLYTE VESSIER. AMDEE VILBA'UX.

IOO

Witnesses DAVID T. S. FULLER, ALBERT UAHEN.

Images