US2109087A - Process of improving the electrical resistance of animal fibers - Google Patents

Process of improving the electrical resistance of animal fibers Download PDF

Info

Publication number
US2109087A
US2109087A US84978A US8497836A US2109087A US 2109087 A US2109087 A US 2109087A US 84978 A US84978 A US 84978A US 8497836 A US8497836 A US 8497836A US 2109087 A US2109087 A US 2109087A
Authority
US
United States
Prior art keywords
steam
electrical resistance
treating
silk
animal fibers
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
Application number
US84978A
Inventor
Goodings Alfred Cecil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOMINION SILK MILLS Ltd
Original Assignee
DOMINION SILK MILLS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DOMINION SILK MILLS Ltd filed Critical DOMINION SILK MILLS Ltd
Priority to US84978A priority Critical patent/US2109087A/en
Priority claimed from GB2006037A external-priority patent/GB486369A/en
Application granted granted Critical
Publication of US2109087A publication Critical patent/US2109087A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
    • D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water

Definitions

  • This invention relates, especially to the treatremaining in the chamber removed through the ment of threads or yarns of silk or wool used in outlet, as, for example, by means of an exhaust covering electrical wires and cables.
  • an exhaust covering electrical wires and cables In such fan. coverings high resistance to the passage of elec-
  • the silk is then dried out in the heated chamtric currents is of great importance in order her to get rid of entrained steam, allowed to cool 5 that a maximum of resistance may be obtained and then removed. with as small an amount of material as pos- Throughout the process the pressure inside the sible.
  • the process may be carried out in a closable Y E l m chamber adapted to be heated and provided with ac ma rem Me I in an inlet for the introduction of steam and an Mamii B s ifince 35 elore steam Alter steam outlet for air or steam.
  • Automatic means will treatment treatment be provided for controlling the heating means that any desn'ed temperature may be main- Tussah silk (puri- Kilomegohma Kilomegohms Timer tained in the chamber. fled) 2400 00
  • the following is a detailed description of the procedure in treating silk yarn, either true silk From the above the tremendous increase in the or wild silk such as tussah. electrical resistance of silk and wool, either acid
  • the chamber is heated to approximately 150 F., treated or not, and due to my steam treatment the silk in skeins placed therein in their norwill be evident. 45
  • a process of treating animal fibers to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
  • a process of treating animal fibers to increase their electrical resistance which consists in heating the material to a temperature above the boiling point of water and thereafter'subjecting the material to the action of an atmosphere of dry steam.
  • a process of treating animal fibers to increase their electrical resistance which consists in heating the material to a temperature above the boiling point. of water and thereafter subjecting the material to the action of an atmosphere of dry steam, removing the steam and thereafter for a short time maintaining the temperature of the material above the boiling point of water.
  • a process of treating animal fibers to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental-to-the insulating properties of the material and thereafter subjecting the material .to the action of an atmosphere of dry steam.
  • a process of treating animal fibers to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which arev detrimental to the insulating properties of the material and thereafter subjecting the material therein which are detrimental to the insulating properties oi the material and thereafter subjecting the material to the action of an atmosphere of dry steam.
  • a process of treating animal fibers to increase their electrical resistance which consists in treating the material with dilute acid to remove at least part of any naturalsalts contained therein which are detrimental to the insulating properties of the material and thereafter subjecting the material to the action of an atmosphere of dry steam under conditions inhibiting the condensation f steam on the material.
  • a process ofitreating animal fibers to increase their elect cal resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental to the insulating properties of the material, heating the material; thereafter subjecting the material to the action of an atmosphere of dry steam; removing the steam and thereafter for a short time maintaining the temperature oi the material above the boiling point of water.
  • a process of treating natural silk yarns to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
  • a process of treating wool yarns to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
  • a process of treating natural silk yarns to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental to the insulating properties of the material, and thereafter subjecting the material to the action of an atmosphere of dry steam.

Description

rammed Feb. 22, 1938 2,109,087
PROCESS OF IMPROVING THE ELECTRICAL RESISTANCE OF ANIMAL FIBERS Alfred Cecil Goodings, Toronto, Ontario, Canada, assignor to Dominion Silk limited, Toronto, Ontario, Canada No Drawing. Application June 12, 1936, Serial No. 84,978
12 Claims. (Cl. 28-58) This invention relates, especially to the treatremaining in the chamber removed through the ment of threads or yarns of silk or wool used in outlet, as, for example, by means of an exhaust covering electrical wires and cables. In such fan. coverings high resistance to the passage of elec- The silk is then dried out in the heated chamtric currents is of great importance in order her to get rid of entrained steam, allowed to cool 5 that a maximum of resistance may be obtained and then removed. with as small an amount of material as pos- Throughout the process the pressure inside the sible. chamber will be maintained substantially at that Animal fibers, such as natural silk and wool, of the atmosphere, though higher and lower presare comparatively good insulators, but it has sures may be used. It has previously been stated 10 been found that their natural resistance can be that the steam should be dry. By dry" is very greatly increased by subjecting the material meant that it should be free of any entrained to an acid treatment which removes a considermoisture likely to be d p s d on the material able part of the natural ionizable salts contained being treated.
therein and which are detrimental to its elec- Some results of the treatment of materials 15 trical resistance. Such acid treatment processes which have not been pre sub e to an are well known in the art and I make no claim acid treatment are as follows: In all cases the to the same. electrical resistance figures are for lengths I have, however, discovered that the electrical of ya under conditions of 85% relative humidresistance of such materials can also be greatly 'ity at a temperature of 100 F, 20 increased by treating it with dry steam as hereinafter described; While the steam treatment Electrical resistance has a very marked effect in increasing the re- Material I hiresistance of material which has not undergone any Before steam After steam gimme 5 treatment to remove the natural salts, its greattreatment 03mm est value lies in the treatment of material-which has undergone an acid treatment or other treat- W l a gg a flg Time 17 merit for the above P rpose. si1i bi2iihili1 44.5 040 13% I The essential feature of the steam treatment is W must be earned out under such condl' Tussah silk previously acid treated showed the 30 tions that condensation of water .on the material following results. is prevented.
The process may be carried out in a closable Y E l m chamber adapted to be heated and provided with ac ma rem Me I in an inlet for the introduction of steam and an Mamii B s ifince 35 elore steam Alter steam outlet for air or steam. Automatic means will treatment treatment be provided for controlling the heating means that any desn'ed temperature may be main- Tussah silk (puri- Kilomegohma Kilomegohms Timer tained in the chamber. fled) 2400 00 The following is a detailed description of the procedure in treating silk yarn, either true silk From the above the tremendous increase in the or wild silk such as tussah. electrical resistance of silk and wool, either acid The chamber is heated to approximately 150 F., treated or not, and due to my steam treatment the silk in skeins placed therein in their norwill be evident. 45
. mal air-dry condition and the chamber closed. While I do not desire to limit myself to any The temperature is then raised to a point above particular process of treating the silk or wool to the boiling point of water, sayv 220 F. Steam is reduce its content of objectionable salts before then allowed to enter and the temperature of apsteam treating, the following treatment has proximately 220 F. maintained during the treatproven satisfactory: 5o
ment. Under such conditions all condensation of A bath is made up containing'a 1% aqueous water on the silk is entirely prevented. The flow solution of acetic acid, the volume of liquid being of steam is continued till all air is forced out of approximately 1 gallon per pound of silk to be the chamber and preferably for some time theretreated and the temperature approximately F. after. About twenty minutes'is usually suflicient. The silk in the form of skeins is immersed in r a The supply of steam is then cut ed and any stem the solution and soaked, with gentle agitation for about 20 minutes. The skeins are then removed, drained and thoroughly rinsed with water until liquid squeezed out shows only a slightly acid reaction (pI-I about 5). The material is then dried.
Other acids, such as hydrochloric, may also be employed. So also any method may be employed, other than the acid treatment for removing ionizable impurities from the silk or wool.
What I claim as my invention is:
1. A process of treating animal fibers to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
2. A process of treating animal fibers to increase their electrical resistance'which consists in heating the material to a temperature above the boiling point of water and thereafter'subjecting the material to the action of an atmosphere of dry steam.
3; A process of treating animal fibers to increase their electrical resistance which consists in heating the material to a temperature above the boiling point. of water and thereafter subjecting the material to the action of an atmosphere of dry steam, removing the steam and thereafter for a short time maintaining the temperature of the material above the boiling point of water.
4. A process of treating animal fibers to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental-to-the insulating properties of the material and thereafter subjecting the material .to the action of an atmosphere of dry steam.
5. A process of treating animal fibers to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which arev detrimental to the insulating properties of the material and thereafter subjecting the material therein which are detrimental to the insulating properties oi the material and thereafter subjecting the material to the action of an atmosphere of dry steam.
7. A process of treating animal fibers to increase their electrical resistance which consists in treating the material with dilute acid to remove at least part of any naturalsalts contained therein which are detrimental to the insulating properties of the material and thereafter subjecting the material to the action of an atmosphere of dry steam under conditions inhibiting the condensation f steam on the material.
8. A process ofitreating animal fibers to increase their elect cal resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental to the insulating properties of the material, heating the material; thereafter subjecting the material to the action of an atmosphere of dry steam; removing the steam and thereafter for a short time maintaining the temperature oi the material above the boiling point of water.
9. A process of treating natural silk yarns to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
10. A process of treating wool yarns to increase their electrical resistance which consists in subjecting the material to the action of an atmosphere of dry steam.
11. A process of treating natural silk yarns to increase their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental to the insulating properties of the material, and thereafter subjecting the material to the action of an atmosphere of dry steam.
12. A process of treating wool yarns to in-.
crease their electrical resistance which consists in treating the material to remove at least part of any natural salts contained therein which are detrimental tothe insulating properties of the material, and thereafter subjecting the material to the action of an atmosphere of dry steam.
a. c. GOODINGQ:
US84978A 1936-06-12 1936-06-12 Process of improving the electrical resistance of animal fibers Expired - Lifetime US2109087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US84978A US2109087A (en) 1936-06-12 1936-06-12 Process of improving the electrical resistance of animal fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84978A US2109087A (en) 1936-06-12 1936-06-12 Process of improving the electrical resistance of animal fibers
GB2006037A GB486369A (en) 1937-07-20 1937-07-20 Process for improving the electrical resistance of animal fibres

Publications (1)

Publication Number Publication Date
US2109087A true US2109087A (en) 1938-02-22

Family

ID=26254409

Family Applications (1)

Application Number Title Priority Date Filing Date
US84978A Expired - Lifetime US2109087A (en) 1936-06-12 1936-06-12 Process of improving the electrical resistance of animal fibers

Country Status (1)

Country Link
US (1) US2109087A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644029A (en) * 1948-08-16 1953-06-30 Connollys Blackley Ltd Natural silk insulated electric conductor
US2739392A (en) * 1951-03-21 1956-03-27 Thies Fa B Process for drying textiles
US3772070A (en) * 1971-04-05 1973-11-13 Burlington Industries Inc Applying antistatic finish on synthetic textiles
US5020245A (en) * 1989-04-18 1991-06-04 Thermo Electron Web Systems, Inc. Steam shower vacuum apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644029A (en) * 1948-08-16 1953-06-30 Connollys Blackley Ltd Natural silk insulated electric conductor
US2739392A (en) * 1951-03-21 1956-03-27 Thies Fa B Process for drying textiles
US3772070A (en) * 1971-04-05 1973-11-13 Burlington Industries Inc Applying antistatic finish on synthetic textiles
US5020245A (en) * 1989-04-18 1991-06-04 Thermo Electron Web Systems, Inc. Steam shower vacuum apparatus

Similar Documents

Publication Publication Date Title
US2109087A (en) Process of improving the electrical resistance of animal fibers
US2163628A (en) Method of moistening grain
US1455199A (en) Coil and condenser treatment
US2530984A (en) Process for impregnating carbon brushes
US1760042A (en) Process for bleaching textile fibers by means of ozone
CN106363747A (en) Oil-proof treatment method for weaving rattan
US2419109A (en) Treatment of tobacco
US1980413A (en) Insulating materials and method of preparing insulating materials
US2161763A (en) Process of making paper pulp
US806696A (en) Method of insulating.
US1897712A (en) Fabric and method of producing the same
US2383963A (en) Methods of treating furs
US2880055A (en) Method of reducing the alkali solubility of wool by treatment with acrolein
US2140759A (en) Method for dressing, treating, and finishing furs
US1688702A (en) Method of treating artificial fibers
US2208965A (en) Aftertreatment of rayon packages
US1793275A (en) Method of drying material
US2687677A (en) Method of controlling the density of pulp insulation
US1919267A (en) Electric insulation
US1738794A (en) Method and apparatus for saturating fibrous articles
US1724514A (en) Process of controlling the sulphur-dioxide content of dried fruit
DE477890C (en) Process for treating a rubber insulation for submarine and other cables and for electrical lines
US2111391A (en) Process of treating animal fibers
JPH06297408A (en) Wood treatment method and apparatus
US2233298A (en) Method for treating paper insulation material in the manufacture of paper insulated electric cables