US1321644A

US1321644A - philadelphia

Info

Publication number: US1321644A
Authority: US
Publication date: 1919-11-11
Anticipated expiration: 1936-11-11

Description

B-lil Uni lulu U1! UNITED, srarns tress Reference rArEN. OFFICE.

JOSEPH 'IERANCISKING, on PHILADELPHIA, PENNSYLVANIA, AssIeNoR OF ONE-HALF TO HARRY B. HAINES, OF PHILADELPHIA, PENNSYLVANIA.

rnoonss or BLEAQHIIN'G.

Ilo Drawing.

To all whom it may concern: I Be it known that 1, JOSEPH 'FR.ANQI'S KING, a citizen of the United States, and a resident of the city of Philadelphia, county.

of Philadelphia,' and State of Pennsylvania,

have invented certain new and useful Im- I reduce theloss inweight of the bleached goods and to improve the appearance of ments necessary, the loss in weight and tenanimal fibers.

such goods.

Another object of my "invention is to bleach such materials when desired to a. dead white as contra-distinguished from bleaching effects known as half-bleach.-

Another object toremove, during the bleaching operation, the such as specks, motes and shives, found for example, in raw cotton, and which, when present in bleached materials, afl'ectsthe value and appearance thereof.

In prior bleaching processes. Within my. knowledgeLseveral disadvantages are pres-' ent, among which'are thelengthof time necessary to complete, the bleaching. action, the large amount of labor lnvolved,

the large'number of handlings and treatsile strength of the bleached material, the

failure to obtain a bleached product with a high grade of softness or loft and the presence of foreign matter or impurities.

By the process of my invention all of the above disadvantages are sought to be overcome 01' remedied and in'carrying out my invention I find that a complete bleaching action may be accomplished in', approxi V r fa dye paste by mining, as for examplegsky- V mately two hours with a large saving in labor involved, and with. the number of handlings and treatments of the materialto be bleached reduced to a minimum. I also find that by my process there is oftentimes no loss in weight of the bleachedmaterial and whenever such loss occurs it rarely exceeds two per cent. 1 further find Specification of Letters Patent.

foreign matter,-

Patented Nov. 11', 191a Application filed June 28, 1910,: Srial No. 307,266.

that by my, process theloss in -tensile strength of the bleached material is substantially decreased and also that the bleached material is of a superior grade. both in quality and appearance, its loftiness being markedly superior to that obtained in the chlorid of lime process of-bleaching.

Moreover, by myproc'ess, impurities, such as specks, motes, shives'and the like which detract from'the appearance and thevalue of the material or goods,'are eliminated, with the resultthat the appearance of the ma 116113; is greatly improved and the value thereof enhanced.

': .In carrying out my invention I first prepare a bleaching compound or composition bymixing together the following enumer- Qldkll UH HUUHI ated constituents oringredients in. substantially'the proportions indicated as follows:

10 parts'by weight of-common salt or sodium chlori 10 parts by weight of soda ash 'or sodium carbonate,

.6 parts by weight oi hydrdgen, 10 parts by weight of caustic soda'or potassium hydrate,

24 parts by weight of Glauber 'salt @1 55 dium sulfat a suitablevat to and in which I may add and dissolve 60 pounds of the above bleacl1 for approximately an hour after which the 1 materials are rinsed,.first in hot water for for also about five minutes.

If, however, isv desired to dye the ma- I may then place 500 gallons of water-in The contents ofthe vat then may be'boiled about five minutes and then in cold water terials, any particular color, the bleaching process may be carried out withabout substantially one-half of the quantity of the bleaching composition or mixture mentioned above and for about one-half of the time ;;necessary fora complete bleaching.

The dye may be first preparedby forming blue dye with a little warm water and then dissolving four ounces of this in two gallons of cold Water. This dye solution may then about five minutes. The contents of the vat may then. be. heated to about Fahrenheit and left for about five minutes to pro duce a light shade of dyeing or for such longer periods as may be required to produ e deeper shades. By this method subpurpose of cleansing the material of impurities, while the remaining constituents primarily react to cause the bleaching action.

If, then, the materials are already free of impurities it may not be necessary to give them the particular treatment required to remove such impurities and my process may omit the constituents sodium carbonate and caustic soda. From the above it may be observed that .this solution is alkaline but depending upon the materials to be treated acids may be substituted for alkalis a'i desired. i

In addition to the above operation, I find, if desired, that I can use reels and squeeze rollsfor the goods when bleaching and rinsing the'same.

While I have above described the manner in which materials may be bleached, this description is intended as exemplifying rather than limiting my invention and it is to be understood that the materials used, their proportions, the order in which the steps are enumerated and the period of treatment, may be suitably varied without departing from the spirit and scope of my'invention.

Having thus described my invention, I

. claim and desire to protect by Letters Patent of the United States:

1. The process of bleaching consisting of dissolvin sodium chlorid, sodium carbonate, hy rogen peroxid, potassium hydrate and sodium sulfate in water, introducing the materials to be bleached into said solution, subjecting the mass to heat and rinsing the bleached materials.

2. The process of bleaching consisting of placing the material to be bleached in a bleaching solution containing sodium chlorid, sodium sulfate and hydrogen peroxid and boiling said material and solution.

3. The process of bleaching consisting of placing the material to be bleached in a bleaching solution containing sodium chlorid, sodium sulfate and hydrogen peroxid, boiling said material and solution and rinsing said bleached material.

4. The process of bleaching and coloring consisting of dissolving a mixture of sodium chlorid, sodium carbonate,,potassium hy- 'drate,-sodium sulfate and hydrogen peroxid in water, placing the material to be bleached and colored in said solution, heating said material and solution, rinsing said material vwith water, applying a soluble coloring substance to the rinsing water containing the bleached material and heating said material and colored solution.

' 5. The process of bleaching consisting o dissolving a mixture of common salt, Glauber salt, hydrogen peroxid and a detergent in Water; placing the material to be bleached in said solution, boiling said solution and material and washing said bleached material. I

In witness whereof I have hereunto set my hand this 27th da of June, 1919.

JOSE H FRANCIS KING.