US2020698A

US2020698A - Pile fabric and method of treating the same

Info

Publication number: US2020698A
Application number: US695003A
Authority: US
Inventors: Platt Herbert
Original assignee: Celanese Corp
Current assignee: Celanese Corp
Priority date: 1933-10-24
Filing date: 1933-10-24
Publication date: 1935-11-12
Anticipated expiration: 1952-11-12

Description

"me e j more:

PILE FABRIQAND METHOD OF TREATING THE SAME Herbert Piatgoumbenana, Md., assignor to Cela- J mnesworporation-of America, a corporation of No Drawing. Application October 24, 193 3,

Serlal No." 895,003

140mm. (01. ze-z) This invention relates to the production of the cellulose acetate or other organic. ester of diflerential lustre effects and differential pile efcellulose, examples of which are' pyridine, ,the fects on fabrics having a pile comprising organic thiocyanates ofsodium, potassium or ammonium, esters of cellulose. v ethyl alcohol, methyl alcohol, diethylene'glycol,

An object of my invention is to produce -difetc. p I 5 ferential lustre effects on fabrics having a pile .The fabric so produced has differential lustre comprising organic ester of cellulose yarn by or shadow print" effects. This differential efthe local application thereto of asaponiiying' fect may be enhanced by treating the fabric in agent. Other objects of this invention will 'apvarious manners. r

1 pear from the following detailed description. The organic ester of cellulose pile yarns that 10 I have found that if a saponifying agent is have not been saponified are morediflicult to g applied to a fabric havinga pile of organic ester change from their position after they are once of cellulose yarn, such yarn, because of the conset than are the saponified organic ester of celversionof the cellulose ester in part or in whole lulose yarns. Therefore it is possible to obtain to regenerated cellrlose, has imparted thereto a differential lay between the saponified and 5' different properties, such as different lustre, covunsaponified organic ester of cellulose pile yarn, ering power, dyeing properties, and behavior to Thus the fabric, afterthe application of the wards the steps involved in the finishing of saponifying agent, may be washed, finished and velvets. By locally applying a saponifying agent dried with the pile erect, after which the fabric;

to such fabrics, it is'possible to obtain difierenmay be run through water and brushed across 20 tial effects that are highly ornamental and which the piece to lay the pile towards the selvage and cannot be obtained inany other manner.' is then dried. This causes the saponifled pile In accordance with my invention then I proyarn to lie flat while the unsaponified yarn reduce ornamental effects on a fabric having a pile mains substantially erect. Upon subsequent comprising organic ester of cellulose yam by steaming and cross-brushing the fabric in the locally applying thereto a composition containopposite direction, any unsaponified yarn which ing a saponifying agent for the cellulose ester. may have been slightly bent from the vertical The fabric to be treated has a pile which com by the previous brushing toward the selvageis prises yams of organic esters of cellulose, such as caused to stand erect without disturbing the po= 39 cellulose acetate, cellulose formats, cellulose'pro sition of the laid or crushed saponified organic I pionate-and cellulose butyrate. The pile may ester of cellulose pile yarn.

consist wholly of such organic cster'of cellulose The saponified organic ester'of cellulose y yarn, or may also comprise yarns of other fibres has an affinity for cotton colors. Therefore by such as regenerated cellulose, cotton, natural sfllr. treating the fabric after local application of The back of the fabric to be treated may be the saponifying agent with a dye-bath contain- 35 made of or contain organic ester of cellulose ing both cotton dyes and dyes having an anyarn, or may be made in whole or in part of finity for organic ester of cellulose material, (life other fibres such as natural silk, regenerated celferential color effects may be produced. If the 1111086, m Elli", back is made of natural silk, three color ref- 49 The fabric has locally applied thereto a saponfe t may be obtained by using dye having an ifying agent which comprises an alkali or allra= ammty for natural silk with the other dyw 'lme ESE-1t that sapomfies least part1?ny the In order further to illustrate my invention, but 5811111958 ester Examples Such @lkalme without being limited thereto, the following speterials are sodium hydroxide, potassium hydrox cmc example is given ide, sodium carbonate, etc. The alkaline agent 45 is present in rather concentrated form, in case Ecoml M sodium hydro-Edda the amwm w m 39% A velvet having a heels of natural sills and a by weight The swam-flying agent generally pile of cellulose acetate yarn is treated with a applied in the form of a paste containnig thick paste consisting of: y l

5% ening agents such as gum tragacantl'i, British Farts hyweggm 50 sum or other dextrines, water-solnhle cellulose British gum a M 3 others, agar agar, starches or the like. Caustic I; "I": 3

Inorder to obtain better penetration and quick Water 'T: W5

or action of the alkaline material, thesapon v ifying agent may contain a swelling agent for The British um i iled with 6 times its water and allowedto coolfi 'lheea'ustic the paste beingkapplied on the back of the fabric. rafter printing the fabric is taken over the back of the printing machine and allowed to dry at room temperatures for 1.5 to 2 hours after which ill is rinsed in water, scoured with water containlug r5 cc. of hydrochloric acid per litre, then rinsed in water, after which it may be treated in any desired manner.

The velvet may be finished with the entire pile erect, However, if it is desired to obtain further differential lustre effects, the velvet may be finishedso as to have the cellulose acetate yarn erectand the saponifiedyarn lying at an angle so as to give a jacquard effect This may be done by taking the velvet finished by drying with the pile erect and running the same through water and then brushing across the piece of the fabric so as to lay the pile towards the salvage and the pieces then dried. This leaves the saponifled cellulose acetate pile lying down flat and the cellulose acetate pile standing practically erect. The fabric is then steamed and cross brushed in opposite direction to make the cellulose acetate pile stand erect without disturbing the position of the laid down saponifled pile.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

l. The method of producing ornamental efiects on pile fabrics comprising locally applying to a fabric having a pile comprising organic ester of cellulose yarn a saponifying agent for the organic ester of cellulose and then finishing the fabric by applying pressure to the pile so that the saponified pile yarn occupies a position that is at an angle difiercnt from that of the unsaponified organic ester of cellulose pile yarn.

2. Th method of producing ornamental effects on pile fabrics comprising locally applying .'to a fabric having a pile comprising cellulose acetate yam a saponifying agent for the cellulose acetate and. then finishing thev fabric by applying pressure to the pile so that the saponiiied pile yarn occupies a position that is at an angle different from that of the unsaponlficd cellulose acetate pile yarn.

3. A pile fabric having a difierential lustre ellect, a part of the pile thereof comprising unsaponifled organic ester of cellulose yarn and another part of the pile comprising saponified organic ester of cellulose yarn, the saponiflied organic ester of cellulose yarn occupying a position that is at-a diiferent angle to the face of the fabric than that of the unsaponified organic ester of cellulose yarn.

4. A pile fabric having a differential lustre effect, a part of the pile thereof comprising unsaponified cellulose acetate yarn and another part of the pile comprising saponified cellulose acetate yarn, the saponifled cellulose acetate yarn occupy g a position that is at a different angle to the face of the fabric than that of the unsaponified cellulose acetate yarn.

5. The method of producing ornamental effects on pile fabrics comprising locally applying to a fabric having a pile comprising organic ester of cellulose yarn a saponifying agent for the organic ester of cellulose and then finishing the fabric by applying pressure to the pile so that the saponifled pile yarn lies flat and the unsaponl- 5 fledpile yarn is substantially erect.

6. The method of producing ornamental effects on pile fabrics comprising locally applying to a fabric having a pile comprising cellulose acetate yarn a saponifying agent for the cellulose acetate and then finishing the fabric by applying pressure to the pile so. that the saponifled pile yarn lies flat and the unsaponifled ,pile yarn is substantially erect.

7. Process for the production of ornamental 15 effects on pile fabrics, which comprises locally applying to a fabric having a pile containing organic ester of cellulose yarn a saponifying agent for the organic ester of cellulose, treating the fabric to cause the pile yarns to assume an 20 erect position and then finishing the fabric by applying pressure to the pile so that the saponiiied pile yarn occupies a position that is at an angle diiferent from that of the unsaponifled pile yarn.

8. Process for the production of ornamental effects on pile fabrics, which comprises locally applying to a fabric having a pile containing cellulose acetate yarn a saponifying agent for the cellulose acetate, treating the fabric to cause the pile yarns to assume an erect position and then finishing the fabric by applying pressure to the pile so that the saponifled pile yam occupies a position thatis at an angle different from that of the unsaponified pile yarn.

- 2 9. Process for the production of ornamental "1 effects on .pile fabrics, which comprises locally applying to a fabric having a pile containing organic ester of cellulose yarn a saponifying agent for the organic ester of cellulose, treating the 0 fabric to cause the pile yarns to assume an erect position and subjecting the fabric to an aqueous treatment and brushing the same so that the saponifled pile yarn occupies a position that is at an angle different from that of the unsaponifled pile yarn.

10. Process for the production of ornamental effects on pile fabrics, which comprises locally applying toa fabric having a pile containing cellulose acetate yarn a saponifying agent for 9.

- subjecting the fabric to an aqueous treatment and brushing the same so that the saponifled pile yarn occupies a position that is at an angle 6? different from that of the unsaponifled pile yarn.

11. Process for the production of ornamental efiects on pile fabrics, which comprises locally applying to a fabric having a pile containing organic ester of cellulose yarn a saponifying agent for the organic ester of cellulose, treating the fabric to cause the pile yarns to assume an erect position and subjecting the fabric to an aqueous treatment and brushing the same so u that the saDonified pile yarn lies flat and the unsaponified pileyarn is substantially erect.

12. Process for the production of ornamentaleffects on pile fabrics, which comprises locally apply g to a fabric having a pile containing 10 cellulose acetate yarn a saponifying agent for the cellulose acetate, treating the fabric to came the pile yarns to assume an erect position and subjecting the fabric to an aqueous treatment and brushing the same so that the sapcninedgg pile yam lie'eflat and the umopcni'iled pile worn. I

eflect, a, part of the pile thereof comprising uneapouii'led cellulose acetate yarn and another part of the pile comprising sapcniiled cellulose acetate yarn, the saponiiled pile yam lying flat 5 I and the unsaponifled pile yarn being substantial- 1y erect.

HERBERT PLA'I'I.

14. A pile mum having a. alumna lustre