US1615783A - Method for the treatment of animal fibers - Google Patents
Method for the treatment of animal fibers Download PDFInfo
- Publication number
- US1615783A US1615783A US718636A US71863624A US1615783A US 1615783 A US1615783 A US 1615783A US 718636 A US718636 A US 718636A US 71863624 A US71863624 A US 71863624A US 1615783 A US1615783 A US 1615783A
- Authority
- US
- United States
- Prior art keywords
- wool
- acid
- waste sulphite
- sulphite liquor
- liquor
- 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
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C5/00—Carbonising rags to recover animal fibres
Definitions
- waste sulphite liquor waste sulphite liquor
- waste liquor of this kind may be employed which has previously been changed by chemical means, or also chemically converted constituents of the waste sulphite liquor may be used, said changing of the waste sulphite liquor or its active constituents for instance being obtained by the action of oxidizing means.
- the method may be employed in all those cases where the animal fiber has to be treated with strongly acid means, as for instance in the carbonizing of common wool or of the so-called artificial or shoddy wool.
- strongly acid means e.g. in the carbonizing process
- wool e. g. shoddy-wool
- the short life time of the so-called artificial or shoddy-wool at least in part is a consequence of the damaging influence of the acid in the carbonizing process.
- the present invention shows a way not only for preventing such a damaging effect but also for allowing to treat the fiber if desired. with stronger acids than usual and than was possible till now.
- raw or purified waste sulphite'liquor or its active constitucuts or their products of conversion may be 718,626. and in Germany February 23, 1923;
- Example Z grams of washed, spun wool free of fats are drenched with sulphuric acid of 5% under the conditions usual in the so-called carbonizing process; then the wool is wrung and dried at 90 C.
- the thus treated wool shows a damaging (though not very high) of its mechanical properties especially of its resistance against tearing. if compared with uncarbonized wool. If however waste sulphite liquor is added to the carbonizing bath in a quantity corresponding only to about one fifth part of the contents of pure sulphuric acid, i. e. 1% of the, sulphuric acid employed, a remarkable increase of the resistance against tearing is obtained.
- Example 2 If two hundred times the quantity of sulphuriq acid of 20%. is employed instead of that indicated in Example 1, and said quantity of acid is allowed to act on the wool during 30 minutes at a temperature of 95 0., the resistance against tearing will diminish to one third of its original value when no protective means are employed. But by the addition of waste sulphite liquor (in a quantity of 3% of the whole liquid) to the acid bath the resistance against tearing will only be diminished to one half of the original value.
- the resistance of the wool against tearing thereby preserves its original value, whereas it will be strongly reduced if no waste sulp iite liquor at all is employed and it will not be just so high if untreated waste sulphite liquor is used.
- Envwnple 4 1 kilo of concentrated waste sulphite liquor is heated to a temperature of to C. with 240 grams of potash chlorate and 200 cubic centimeters of concentrated hydrochloric acid. The mixture will foam up strongly in the beginning of the reaction. The mass is further heated during two hours, then cooled and neutralized by means of soda solution. The thus obtained product may directly be employed as protecting means. Also in this case the resistance of the Wool etc. against tearing will not be damaged by its treatment with strongly acid agents, such as sulphuric acid. The effect of a Waste sulphite liquor treated and converted in the indicated manner is yet a better one than that obtained by the employment of the untreated, usual Waste sulphite liquor.
- a method for the protection of animal fibers during the separation from vegetable consisting in performing the carbonization While treating the material with active constituents of Waste sulphite liquor.
Landscapes
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
Patented Jan. 25, 1927.
MAX BERGMANN, EUGEN IMMENDtiRFER, AND HERMANN LOEWE, 0F DRESDEN, GERMANY.
METHOD FOR THE TREATMENT OF ANIMAL FIBERS.
No Drawing. Application filed June 7, 1924 Serial No.
When treating animal fibers with strongly acid agents a more or less considerable damaging of the mechanical properties of the fiber frequently occurs.
Now we have found that this damaging of the animal fiber by strongly acid agents can be avoided and that even an improvement of the mechanical properties of the fiber can be obtained if the animal fibers or the material and products consisting thereof or prepared therefrom, as for instance woolen textiles, silks or silk tissues and so on, are treated either before or during the action of the strongly acid agents with the waste liquor resulting from the manufacture of cellulose from wood by means of sulphurous acid and the like (hereinafter called waste sulphite liquor) or the active constituents of this waste sulphite liquor. Instead of the common waste sulphite liquor also such waste liquor of this kind may be employed which has previously been changed by chemical means, or also chemically converted constituents of the waste sulphite liquor may be used, said changing of the waste sulphite liquor or its active constituents for instance being obtained by the action of oxidizing means.
The method may be employed in all those cases where the animal fiber has to be treated with strongly acid means, as for instance in the carbonizing of common wool or of the so-called artificial or shoddy wool. Though the damaging of the wool by acid means, e. g. in the carbonizing process, cannot be stated exactly till now. nevertheless wool (e. g. shoddy-wool) which has been treated in such a, manner will only have a short life time and therefore can only be cn'iployed for the manufacture of tissues of inferior valuc. \Vithout doubt the short life time of the so-called artificial or shoddy-wool at least in part is a consequence of the damaging influence of the acid in the carbonizing process. Now the present invention shows a way not only for preventing such a damaging effect but also for allowing to treat the fiber if desired. with stronger acids than usual and than was possible till now.
In this method either raw or purified waste sulphite'liquor or its active constitucuts or their products of conversion may be 718,626. and in Germany February 23, 1923;
employed either separately or in mixture with one another or with other substances.
The invention will be hereinafter eX- plained by a number of examples.
Example Z. grams of washed, spun wool free of fats are drenched with sulphuric acid of 5% under the conditions usual in the so-called carbonizing process; then the wool is wrung and dried at 90 C. The thus treated wool shows a damaging (though not very high) of its mechanical properties especially of its resistance against tearing. if compared with uncarbonized wool. If however waste sulphite liquor is added to the carbonizing bath in a quantity corresponding only to about one fifth part of the contents of pure sulphuric acid, i. e. 1% of the, sulphuric acid employed, a remarkable increase of the resistance against tearing is obtained.
Example 2.If two hundred times the quantity of sulphuriq acid of 20%. is employed instead of that indicated in Example 1, and said quantity of acid is allowed to act on the wool during 30 minutes at a temperature of 95 0., the resistance against tearing will diminish to one third of its original value when no protective means are employed. But by the addition of waste sulphite liquor (in a quantity of 3% of the whole liquid) to the acid bath the resistance against tearing will only be diminished to one half of the original value.
Example 3.VVhen treating wool with acids, waste sulphite liquor is added which has previously been treated with ozonized air, said treated waste sulphite liquor being employed in such a quantity that the acid liquid will contain one or a few per cent of the concentrated waste sulphite liquor. The resistance of the wool against tearing thereby preserves its original value, whereas it will be strongly reduced if no waste sulp iite liquor at all is employed and it will not be just so high if untreated waste sulphite liquor is used.
Envwnple 4. 1 kilo of concentrated waste sulphite liquor is heated to a temperature of to C. with 240 grams of potash chlorate and 200 cubic centimeters of concentrated hydrochloric acid. The mixture will foam up strongly in the beginning of the reaction. The mass is further heated during two hours, then cooled and neutralized by means of soda solution. The thus obtained product may directly be employed as protecting means. Also in this case the resistance of the Wool etc. against tearing will not be damaged by its treatment with strongly acid agents, such as sulphuric acid. The effect of a Waste sulphite liquor treated and converted in the indicated manner is yet a better one than that obtained by the employment of the untreated, usual Waste sulphite liquor.
Having now particularly described and ascertained the nature of our said invention we declare that What We claim is:
1. A method for the protection of animal fibers during the separation from vegetable (ibers by earbonization rith strongly acid agents, consisting in performing the carbonization While treating the material with active constituents of Waste sulphite liquor.
2. A method for the protection of animal fibers during the separation from vegetable fibers by carbonization With strongly acid agents, consisting in performing the carboni- Zation While treating the material with waste sulphite liquor.
In testimony whereof We have hereunto set our hands.
PROF. DR. MAX BERGMANN.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1615783X | 1923-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1615783A true US1615783A (en) | 1927-01-25 |
Family
ID=7737276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US718636A Expired - Lifetime US1615783A (en) | 1923-02-23 | 1924-06-07 | Method for the treatment of animal fibers |
Country Status (1)
Country | Link |
---|---|
US (1) | US1615783A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508407A (en) * | 1946-12-27 | 1950-05-23 | Levin Manuel | Process for cleaning animal fibers to prepare same for subsequent use in textile operations |
US2508406A (en) * | 1946-12-27 | 1950-05-23 | Levin Manuel | Process for cleaning animal fibers to prepare same for subsequent use in textile operations |
-
1924
- 1924-06-07 US US718636A patent/US1615783A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508407A (en) * | 1946-12-27 | 1950-05-23 | Levin Manuel | Process for cleaning animal fibers to prepare same for subsequent use in textile operations |
US2508406A (en) * | 1946-12-27 | 1950-05-23 | Levin Manuel | Process for cleaning animal fibers to prepare same for subsequent use in textile operations |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1856567A (en) | Process of decomposing vegetable fibrous matter for the purpose of the simultaneous recovery both of the cellulose and of the incrusting ingredients | |
US1615783A (en) | Method for the treatment of animal fibers | |
US2372561A (en) | Process of treating low rank textile fibers | |
GB264529A (en) | Process for improving artificial fibres consisting of regenerated cellulose | |
US2074339A (en) | Preparation of cellulosic material | |
US2068631A (en) | Preparation of cellulose xanthate solutions | |
US2407909A (en) | Purification of crude cellulosic material | |
US1741540A (en) | Process for the production of high-alpha cellulose fiber for the manufacture of cellulose derivatives | |
DE328034C (en) | Process for the production of individual fibers from bast fiber bundles with simultaneous opening up and removal of existing wood parts and incrustations | |
US1927022A (en) | Art of treating natural and artificial silk and agents therefor | |
US848361A (en) | Production of white pulp. | |
US8134A (en) | Improvement in processes for treating vegetable fiber | |
US2004875A (en) | Manufacture of artificial materials | |
US1967347A (en) | Process for producing a cellulose of high content of alpha cellulose | |
US1829110A (en) | Purification of cellulose fiber | |
US1020625A (en) | Treatment of vegetable fibers and materials. | |
US1880047A (en) | Pulp refining process | |
US1813531A (en) | Process for obtaining a product rich in cellulose and useful by-products from straw | |
US3174896A (en) | Treatment of spent caustic solution | |
GB190928701A (en) | A Process of Preparing Vegetable Silk and like Fibres for Dyeing and Spinning. | |
US2083280A (en) | High quality products from cellulose | |
US1755657A (en) | Caustic-soda solution of cellulose | |
US2028846A (en) | Cellulose pulp for esterification purposes and processing of same | |
DE477372C (en) | Production of a highly active, almost ash-free adsorption carbon | |
US1921935A (en) | Process for the conversion of textile vegetable fibers into threads having the texture of wool |