Process for treating fibrous articles with an aqueous treating liquid |
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| 申请号 | US45010974 | 申请日 | 1974-03-11 | 公开(公告)号 | US3927972A | 公开(公告)日 | 1975-12-23 |
| 申请人 | TORAY INDUSTRIES; | 发明人 | KAWAMURA SADAO; HAYAKAWA AKIRA; KUROKAWA HARUTOSHI; | ||||
| 摘要 | Fibrous articles are uniformly treated under low compression by charging them into a treating chamber defined between horizontal upper and lower partitions in a stratiform with a normal thickness satisfying the following relationship: L1 > OR = 0.9L2 wherein L1 is the thickness of the treating chamber and L2 is the normal thickness of the stratum of the fibrous articles in the treating liquid, and by flowing the treating liquid through the stratum of the fibrous articles along the thickness thereof in alternate directions. | ||||||
| 权利要求 | 1. A PROCESS FOR TREATING FIBROUS ARTICLES CONSISTING OF BULKY YARNS WITH AN AQUEOUS TREATING LIQUID, COMPRISING: A. PROVIDING A STRATIFORM TREATING CHAMBER HAVING A THICKNESS L1 DEFINED BY A PAIR OF HORIZONTALLY EXTENDING PATITIONS HAVING APERTURES THERETHROUGH TO PERMIT THE FLOW OF TREATING LIQUIDS THROUGH THE TREATING CHAMBER ALONG THE THICKNESS DIMENSION; B. PROVIDING FIBROUS ARTICLES, CONSISTING OF BULKY YARNS, TO BE TREATED; C. CHARGING THE TREATING CHAMBER WITH THE FIBROUS ARTICLES TO FORM A STRATUM OF FIBROUS ARTICLES HAVING AN UNCOMPRESSED THICKNESS IN THE ATMOSPHERE OF ABOUT 0.09 TO 0.16 RATE OF ABOUT 10 TO 30 LITRES/MIN PER KG OF FIBROUS ARTICLES G/CM3, AND AN UNCOMPRESSED THICKNESS L2 IN THE TREATING LIQUID, WHERE 1.1 $ 1.51.2. 2. A process according to claim 1, further comprising, drying the fibrous articles after said flowing the treating liquid through the treating chamber. 3. A process as claimed in claim 2, wherein said drying comprises blowing hot air through said treated stratum of fibrous articles in said treating chamber. 4. A process for treating muffs consisting of bulky yarns with an aqueous treating liquid, comprising: a. providing a stratiform treating chamber having a thickness L1 defined by a pair of horizontally extending partitions having apertures therethrough to permit the flow of treating liquids through the treating chamber along the thickness dimension; b. providing muffs having a transverse dimension of about 90 to 200 mm, and consisting of bulky yarns, to be treated; c. charging the treating chamber with the muffs to form a stratum of muffs having an uncompressed thickness in the atmosphere less than L1, an apparent density in the atmosphere of about 0.09 to 0.16 g/cm3, and an uncompressed thickness L2 in the treating liquid, where L1 < 1.5L2, in order to effect a resistance to the flow of the treating liquid through the treating chamber of about 0.2 to 0.5 Kg/cm2; and d. flowing the treating liquid through the treating chamber in alternate directions along the thickness dimension at a flow rate of about 10 to 30 litres/min per Kg of muffs within the treating chamber for a period of time sufficient to change the apparent density of the stratum of muffs according to the relationship Rho n/ Rho o 1.0 to ( Alpha + Beta Rho o) where Rho n is the apparent density of the stratum of muffs in the atmosphere after treatment, Rho o is the initial apparent density of the stratum of muffs in the atmosphere before treatment, Alpha is about 0.62 to 0.63 and Beta is about 80 to 90. 5. A process as claimed in claim 1, wherein said fibrous articles are selected from the group consisting of loose fibers, filament tows, fiber slivers, hank-formed yarns, muff-formed yarns, knitted fabrics, knitted pieces and bulky woven fabrics. 6. A process as claimed in claim 1, wherein said providing fibrous articles comprises providing a plurality of muff-formed yarns, and wherein said charging the treating chamber includes filling spaces between said yarn muffs with fillers, whereby said aqueous treating liquid passes through said yarn muffs only. 7. A process as claimed in claim 6, wherein said filling spaces between said yarn muffs with filler includes selecting the filler from the group consisting of natural and synthetic resins, metallic materials and wood. 8. A process as claimed in claim 4, wherein said muff consists of an acrylic bulky yarn. 9. A process as claimed in claim 4, wherein said muff is provided by winding said bulky yarn by the filling winding method. 10. A process as claimed in claim 1, wherein said treating comprises dyeing and said aqueous treating liquid contains at least one dye. 11. A process as claimed in claim 1, wherein said treating comprises oiling and said aqueous treating liquid contains at least one oiling agent. 12. A process as claimed in claim 11, wherein said oiling liquid is circulated at a temperature of 40* to 60*C at a flow rate of 0.8 to 1.8 times that of said dyeing liquid. |
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