US475551A - Charles girard - Google Patents
Charles girard Download PDFInfo
- Publication number
- US475551A US475551A US475551DA US475551A US 475551 A US475551 A US 475551A US 475551D A US475551D A US 475551DA US 475551 A US475551 A US 475551A
- Authority
- US
- United States
- Prior art keywords
- girard
- charles
- fibers
- decorticating
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 14
- 240000008564 Boehmeria nivea Species 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 12
- 239000002253 acid Substances 0.000 description 10
- 239000004753 textile Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 150000001447 alkali salts Chemical class 0.000 description 8
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 239000003513 alkali Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N Hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 229910000468 manganese oxide Inorganic materials 0.000 description 4
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 4
- CVMIVKAWUQZOBP-UHFFFAOYSA-L manganic acid Chemical compound O[Mn](O)(=O)=O CVMIVKAWUQZOBP-UHFFFAOYSA-L 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- VLAPMBHFAWRUQP-UHFFFAOYSA-L Molybdic acid Chemical class O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 2
- 229920002230 Pectic acid Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000001464 adherent Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 150000001642 boronic acid derivatives Chemical class 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 150000002696 manganese Chemical class 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 125000005402 stannate group Chemical group 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Definitions
- This invention relates to a chemical process for decorticating and ungumming textile fibers, and more especially ramie or chinagrass; and it consists,broadly, in the employment for these purposes of basic salts of polyatomic acids, such as basic borates, phosphates, arseniates, tungst-ates, molybdates, and more particularly basic manganates, stannates, or alkaline silicates, either in the cold or by boiling or under pressure, the result of the reaction, whether decorticating or ungumming, depending on the quantity of the product employed.
- basic salts of polyatomic acids such as basic borates, phosphates, arseniates, tungst-ates, molybdates, and more particularly basic manganates, stannates, or alkaline silicates
- the action is much more rapid and effective than when caustic alkalies or alkali carbonates are employed, as the salts above referred to quickly disintegrate the pectates of the earths and alkaline earths by dissolving, especially when the operation is performed hot, a considerable quantity of entose and pectose.
- the vasculose remains in the form of a thin non-adherent pellicle, which is readily removed by washing or slightly heat ing the fibers after drying.
- the salts above mentioned do not injure the fibers, which retain their fineness, suppleness, and luster.
- the gums are completely acted on and the color of the fiber varies from brown to black, due to the deposit of manganese oxides.
- the fibers are washed 1n Water and then passed through abath of sulphurous acid to dissolve the manganese oxides deposited, after which they are thoroughly washed to entirely eliminate the manganese salt formed.
- the fiber thus treated is now ready for use and may be bleached by means of hypochlorite of lime or soda.
- the fiber which has been ungummed by this process, is very silky and retains its suppleness and tenacity.
- the proportion of alkaline manganate employed may be increased or reduced according to the quality of the ramie to be ungumined.
- basic salts of polyatomic acids may give the same results.
- the heating may also be performed under pressure. By heating the ramie stalks in the cold or urging when the hot process is employed and employing a much smaller proportion of the basic salt of a polyatomic acid the fibers may be decorticated or detached with the greatest facility from the woody portion.
- I claim- 1 The process of decorticating and ungumming textile plants, which consists in, first, treating plants with a basic salt of a polyatomic acid to dissolve the gnmming substances in said plants; second, washing the fibers thus treated in water to remove a portion of the gumming substances and oxides; third, passing said fibers through a bath of sulphurous acid,and fin allycleansingthe fiber with water, substantially in the manner herein described.
Description
UNTTETT STnTEs PATENT @EETQE.
CHARLES GIRARD, OF PARIS, FRANCE.
PROCESS OF UNGUMMING AND DECORTICATING TEXTILE MATERIAL.
SPECIFICATION forming part of Letters Eaten't No. 475,551, dated May 24, 1892.
Application filed August 4, 1891. Serial No. 401.634. (N0 specimens.) Patented in France May 20, 1890, No. 205,775.
To all whom it may concern:
Be it known that I, CHARLES GIRARD, of the city of Paris, France, have. invented an Improved Process of Ungumming and Decorticating Textile Materials, (for which I have obtained Letters Patent in France for fifteen years, dated May 20, 1890,No. 205,775,) of which the following is a full, clear, and exact description.
This invention relates to a chemical process for decorticating and ungumming textile fibers, and more especially ramie or chinagrass; and it consists,broadly, in the employment for these purposes of basic salts of polyatomic acids, such as basic borates, phosphates, arseniates, tungst-ates, molybdates, and more particularly basic manganates, stannates, or alkaline silicates, either in the cold or by boiling or under pressure, the result of the reaction, whether decorticating or ungumming, depending on the quantity of the product employed. The action is much more rapid and effective than when caustic alkalies or alkali carbonates are employed, as the salts above referred to quickly disintegrate the pectates of the earths and alkaline earths by dissolving, especially when the operation is performed hot, a considerable quantity of entose and pectose. The vasculose remains in the form of a thin non-adherent pellicle, which is readily removed by washing or slightly heat ing the fibers after drying. The salts above mentioned do not injure the fibers, which retain their fineness, suppleness, and luster.
I will describe the use of manganates (with which good results have been obtained) as an example of the process of this invention, the operation being performed in the following manner: Into a boilerof a capacity of eight hundred liters are placed one hundred kilograms of ramie or chinarlgrass, to which is then added asolution of manganate of otash or soda, in the proportion of sevendfilograms of manganate to five hundred kilograms of water. The proportion of manganic acid to the alkali should be about one to four, as a larger proportion of manganic acid would burn the fiber and entirely deprive it of its tenacity. The whole is then boiled for from two to five hours, according to the kind of ramie to be ungummed. At the end of this time the gums are completely acted on and the color of the fiber varies from brown to black, due to the deposit of manganese oxides. On leaving the bath the fibers are washed 1n Water and then passed through abath of sulphurous acid to dissolve the manganese oxides deposited, after which they are thoroughly washed to entirely eliminate the manganese salt formed.
The fiber thus treated is now ready for use and may be bleached by means of hypochlorite of lime or soda. The fiber, which has been ungummed by this process, is very silky and retains its suppleness and tenacity.
The proportion of alkaline manganate employed may be increased or reduced according to the quality of the ramie to be ungumined.
It is to be observed that basic salts of polyatomic acids may give the same results. In this case it is preferable to increase the quantity of the salt, which'should be in the proportion of about ten per cent, and hydrochloric or sulphuric acid should be substituted for sulphurous acid. The heating may also be performed under pressure. By heating the ramie stalks in the cold or urging when the hot process is employed and employing a much smaller proportion of the basic salt of a polyatomic acid the fibers may be decorticated or detached with the greatest facility from the woody portion.
I claim- 1. The process of decorticating and ungumming textile plants, which consists in, first, treating plants with a basic salt of a polyatomic acid to dissolve the gnmming substances in said plants; second, washing the fibers thus treated in water to remove a portion of the gumming substances and oxides; third, passing said fibers through a bath of sulphurous acid,and fin allycleansingthe fiber with water, substantially in the manner herein described.
, 2. The process of decorticating and ungumming textile plants, which consists in treating said plants with manganate of potash to dissolve the gumming substance of said plant, then Washing the fiber so treated with water, i
process of n ngum'ming and decorticating textile materials signed by me this 17th day of and then passing said fiber intoa bath of su1- July, 1891.
phnrous acid to remove the gum and oxides, CHARLES GIRARD. 5 and finally in washing and bleaching said \Vitnesses:
fibers, substantially as described. R. M. HOOPER,
ALBERT MOREAU.
The foregoing specification of my improved
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US475551A true US475551A (en) | 1892-05-24 |
Family
ID=2544407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US475551D Expired - Lifetime US475551A (en) | Charles girard |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US475551A (en) |
-
0
- US US475551D patent/US475551A/en not_active Expired - Lifetime
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