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US2007182A - Textile materials - Google Patents

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US2007182A
US2007182A US491070A US49107030A US2007182A US 2007182 A US2007182 A US 2007182A US 491070 A US491070 A US 491070A US 49107030 A US49107030 A US 49107030A US 2007182 A US2007182 A US 2007182A
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threads
crepe
fabrics
casein
coating
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US491070A
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Dickie William Alexander
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Celanese Corp
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Celanese Corp
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • D04B1/20—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads crimped threads

Definitions

  • This invention relates to the manufacture of textile fabrics an'dtextile yarns suitable for in-' corporating therein, and is more particularly concerned with the production of fabrics exhibiting crepe effects.
  • a coating operation the material desimilarly described as a coating.
  • a textile yarn may becoated or impregnated with casein by any convenient process, twistedto the necessary high degree, woven into a fabric with orwithout other yarns, and the fabric subjected to treatment with water or' otherv aqueous liquid so as to cause the casein coatings or deposits to swell.
  • water or' otherv aqueous liquid so as to cause the casein coatings or deposits to swell.
  • coating or impregnating material -sho'uld may be capable of swelling'without becoming coneverted into a very softfor yieldingform;
  • I Particularlysatisfactory, resultsj'ma'ybe obtained when coatings or deposits; of casein are P employed though other albuminous materials, for example egg albumen, and substances of other classes, for example rubber or rubber. latex or algin may be used if desired. Coatings'or deposits of these rnaterials, especially of casein, may be caused to swell,
  • the subsequent treatment of thematerials for the purpose of swelling the coating or impreg-' nating materials of the crepe threads may be ac- 'complished'in any convenient" manner. Itis essential however that the method utilized be such solutions or,dispersions,,the solvent or other vehicle being subsequently. removed-by subjecting ,woll mby 'ew 0 I' the aqueousliquid, he coating bath, for example a dilute solution of soap such as is commonly employed for the scouring of textile materials. Where the degree of swelling thus attained is insumcient the conditions of treatment may be modified; for example higher temperatures may be employed or substances facilitating the swelling may be added to the treating bath e. g. benzene or other aromatic hydrocarbons may be added in the case of coatings of rubber latex.
  • a simple aqueous bath causes the coating or impregnating materials of the crepe threads to become unduly soft or yielding
  • the bath may be modified so as to restrain the swelling action.
  • an aqueous swelling bath may receive an addition of alcohol or of a salt or other material which diminishes the swelling action of the water.
  • Another method of effecting a regulated degree of swelling is to apply the swelling agent in restricted quantity e. g. in the form of vapour.
  • the fabrics containing the coated or impregnated crepe threads may be subjected to the action of moist air until the requisite degree of swelling of the coatings has taken place.
  • organic swelling agents e. g. benzene
  • the action thereof may be diminished if necessary by an admixture of inert diluent, e. g. lower paraflin hydrocarbons.
  • inert diluent e. g. lower paraflin hydrocarbons.
  • the coatings or deposits applied from solutions or dispersions in a liquid e. g. water may be so treated by physical, chemical or other means that on treatment with the same liquid swelling and no immediate solution or substantial softening takes place.
  • the crepe threads may be coated'or impregnated with a solution ofcasein in water containing an alkali and then treated with an acid, or with a salt of a heavy metal or of calcium or other alkaline earth metal, whereby the casein becomes converted into an insoluble or difllcultly soluble form which, after drying, swells when treated with water but does not dissolve or become very soft or yielding.
  • casein is applied in the form of an aqueous ammoniacal solution
  • simple drying is usually sufllcient to effect removal of ammonia and leave a deposit or coating of casein capable of swelling in water in the desired manner.
  • Coatings of casein or other albuminous materials may also be treated with formaldehyde or tannic acid in order to reduce their tendency to become unduly soft or yielding in water.
  • the yarns may for instance be passed through an ammoniacal solution of casein and then through formaldehyde solution.
  • the agents adapted'to modify the coatings may be applied in admixture with the coating materials.
  • an ammoniacal solution of casein containing formaldehyde may be applied to the yarns or threads, a subsequent drying serving to fix a difflcultly soluble casein compound thereon.
  • some materials for example rubber latex, may be applied as aqueous dispersions and the latter converted on thethreads into the desired coatings or deposits, capable of being swollen by water, by drying or other treatment adapted to effect coagulation of the dispersion.
  • casein has been found particularly suitable for the coating or impregnation of crepe threads in accordance with the invention.
  • Casein may for instance, readily be dissolved or dispersed in water with the aid of an alkali such as borax, caustic soda, or ammonia.
  • alkali such as borax, caustic soda, or ammonia.
  • Such solutions or dispersions applied to textile yarns leave, on simple drying in the caseof ammoniacal solutions, and drying and acidifying in the case of some other alkaline solutions, deposits or coatings which swell on treatment with suitable aqueous baths without becoming very soft or yielding.
  • the yarns are eminently suitable for the production of fabrics exhibiting crpe effects.
  • the crping of fabrics incorporating the said yarns may be readily effected, that is to say the fabrics may be caused to exhibit crepe effects, by treatment in a suitable aqueous bath.
  • any treatment applied, whether for the purpose of applying, modifying, or swelling the coatings or deposits of the crepe threads should not be such as to affect prejudicially the properties of the filaments composing the crepe threads.
  • solutions or dispersions of casein, algin, rubber latex, or the like employed for coating or impregnating crepe threads in accordance with the invention may contain, in addition to dissolving or dispersing agents where these are employed, other substances capable of modifying the character of the coatings.
  • softening agents e. g. glycerine
  • lubricating agents e. g. oils or soaps for instance sodium stearate.
  • crepe threads are to be prepared from yarns made of or containing cellulose acetate or other cellulose esters
  • the solutions or dispersions may be rendered alkaline with an aliphatic amine.
  • the invention is applicable to the production of textile fabrics having crepe threads of any desired textile materials and is particularly aptainers.
  • the yarn may thenbedried while wind-pp'licable to the production of fabrics from crepe ing off onto other bobbins or packages.
  • the treatment with the solutions or dispersions may take place continuously with their production; .for example a bundle. of filaments. of cellulose acetate issuing from a dry spinning apparatusmay be passed directly through a bath or'through or over another suitable application device supplied with one of the aforesaid solutions or dispersions.
  • the application of the casein, algin or like material to the yarns to be used as crepe threads is preferably effected in such a manner that the individual filaments constituting the said yarns are effectively coated.
  • the application is in. consequence preferably effected while the yarns are in the untwisted or only slightly twisted state.
  • the after-treatment applied to the fabrics for the purpose of causing the coatings'of the crepe threads to swell and crping of the fabrics to occur may, as indicated previously, vary according to the nature of the said coatings.
  • it may comprise a simple treatment with water with or without addition of substances adapted to vary the swelling action of the bath, for instance soap, alkali metal salts, e. g. sodium 'chloride, or acids, e. g. hydrochloric acid.
  • the swelling treatment may be combined with another subsequent treatment, for example the removal of the coating materials or dyeing.
  • the coatings or deposits on the crpe threads may be removed in any convenient manner, for example, where the coating is of casein, by scouring in a bath containing alkali or soap.
  • the removal of the coatings or deposits may be effected in the same bath as the swelling by a suitable adjustment of the composition, temperature, etc-of the bath.
  • woven material containing crepe threads coated with casein may beentered into an alkali or soap bath of such concentration and temperature that the coatings become swollen but not immediately removed.
  • the concentration and/or temperature of the bath maybe increased for the purpose of removing the coating.
  • the degree of twist imparted to the yarns or threads serving to give the crepe effect may be similar to that commonly employed in the production of crpe threads from silk in the gummed state, but any other suitable degree of twist, whether higher or lower, may be employed according to the effects it is desired to produce.
  • crepe threads produced in accordance with the invention may be incorporated into fabrics in any desired manner, for example the weft alone may be wholly on partially composed of such threads, or the warp may also contain them.
  • threads of relatively low twist in the warp and to employ as the weft both crepe threads threads made of degummed silk or made of yarns consisting of or containing artificial filaments of for.
  • regenerated cellulose or cellulose esters or cellulose ethers are cellulose formate. acetate, propionate and butyrate, and among the ethers may be mentioned ethyl, methyl, and benzyl cellulose and the analogous condensation products of cellulose and glycols or polyhydric alcohols.
  • the process of producing textile fabrics exhibiting crepe effects which comprises coating threads with an albuminous material dispersible in water, modifying the coating so as to render it capable of being swelled by water without becoming relatively yielding, twisting the threads to a high degree, incorporating'in fabrics the highly twisted crepe threads so produced, and then subjecting thesaid fabrics to an aqueous treatment.
  • the process of producing textile fabrics exhibiting crepe effects which comprises coating threads of cellulose acetate withgelatin, subjecting the threads to the actionof formaldehyde, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
  • ace-Lisa 10 The'process of producing textile fabrics exhibiting crepe effects, which comprises coating threads of cellulose acetate with an alkali casein- 13. Highly twisted cellulose l acetate crepe,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Description

Patented July 9, 1935 museu -e .v Q .2' 7,1s2
TEXTILEMA ERIALS r g I William Alexander Dickie, Spondon, near Derby, EnglamL'assignor to Celanese Corporation of America, a corporation of Delaware Y Nollrawinga .ApplicationOctober 24, 1930, Serial N0. 491,070,;111 Great Britain November 13,
13' Claims.
This invention relates to the manufacture of textile fabrics an'dtextile yarns suitable for in-' corporating therein, and is more particularly concerned with the production of fabrics exhibiting crepe effects. j g
Textile materials exhibiting crepe effectshave long been obtained by employing in their construction highly twisted yarns (hereinafter referred to as crepe yarns or crepe threads) made of natural silk in the gummed state, the crepe e ffects'appearing whenthe fabrics are subsequently subjected to. a suitable scouring or like treatment for thepurpose of removing the gum. Crepe effects are, however, only obtained with difficulty by theiem-. ployment of highly twisted crepe threads made of certain other materials, especially degummed silk and artificial fibres. i i v 1 I have now found that; in the production of tex tile fabrics exhibiting crepe effects, improved result are obtained by subjecting fabrics containing highly twisted crepe threads coated, impregnated, or similarly treated with a material capable of 7 being swelled, to a treatment adapted to swell the coatingmaterial without rendering it relatively soft or yielding. I Threads to be used as crepe threads may-be coated, impregnated, or similarly treated, preferably prior to twisting, with a ma-- posited-on the threadbythe saidoperation being terialwhich is capable of being caused to swell, and,*after weaving the said threads into fabrics, the coating or impregnating materials may be swelled. The operation of coating,- impregnating or similarly treating the thread is hereinafter referred to as a coating operation, the material desimilarly described as a coating. Thus-for example a textile yarn may becoated or impregnated with casein by any convenient process, twistedto the necessary high degree, woven into a fabric with orwithout other yarns, and the fabric subjected to treatment with water or' otherv aqueous liquid so as to cause the casein coatings or deposits to swell. In this manner it has been found possible not only to-obtain crepe effects more easily when using for crepe threads the textile yarns hitherto employed for this purpose, but also to obtain crpeeffects when using for crepe threads textile yarns which could not be applied for this purpose hitherto. I a It appears that when the coating or impregnating material of the highly twisted crepe threads swells while remaining relatively firm, i. e. while not becoming'unduly soft or yielding, the crepe threads shrink in length and give rise to-crpe I effects in the fabrics.
may be caused toswell-after the said threads have been twisted and incorporated into'fabricsj The.
coating or impregnating material -sho'uld, however, be capable of swelling'without becoming coneverted into a very softfor yieldingform; I Particularlysatisfactory, resultsj'ma'ybe obtained when coatings or deposits; of casein, are P employed though other albuminous materials, for example egg albumen, and substances of other classes, for example rubber or rubber. latex or algin may be used if desired. Coatings'or deposits of these rnaterials, especially of casein, may be caused to swell,
by means of an aqueous treatment, without becoming undesirably yielding arson. 1 l
Various means maybemtilized forjthe coating or impregnation of the crepe threads with casein orother albumen, rubber latex-, -,algin, or the like.
Very conveniently however the-'said{-coating or materialsare ap edjtojthethreads ,j-i
impregnatin preferably whilethe'lattera untwistedor only slightly twisted, inthe former-aqueous or other advantage be sub tion eitherbeforeo ing. Such dehydration ay jbeacomp shed for .instance by dryin :ina current ,of'warmior o air or by treating thetwisted or-untwi'sted repe threads,- or the fabricswith ,liquids' capable off abstracting water fromthe coatings or deposits, for example strong alcohol or a concentrated solution of calcium chloride.
The subsequent treatment of thematerials for the purpose of swelling the coating or impreg-' nating materials of the crepe threads may be ac- 'complished'in any convenient" manner. Itis essential however that the method utilized be such solutions or,dispersions,,the solvent or other vehicle being subsequently. removed-by subjecting ,woll mby 'ew 0 I' the aqueousliquid, he coating bath, for example a dilute solution of soap such as is commonly employed for the scouring of textile materials. Where the degree of swelling thus attained is insumcient the conditions of treatment may be modified; for example higher temperatures may be employed or substances facilitating the swelling may be added to the treating bath e. g. benzene or other aromatic hydrocarbons may be added in the case of coatings of rubber latex.
On the other hand, where a simple aqueous bath causes the coating or impregnating materials of the crepe threads to become unduly soft or yielding, the bath may be modified so as to restrain the swelling action. For example, in the case of coatings of gelatine or like albumens an aqueous swelling bath may receive an addition of alcohol or of a salt or other material which diminishes the swelling action of the water.
Another method of effecting a regulated degree of swelling is to apply the swelling agent in restricted quantity e. g. in the form of vapour. For example the fabrics containing the coated or impregnated crepe threads may be subjected to the action of moist air until the requisite degree of swelling of the coatings has taken place.
In'like manner when, as in the case for example of coatings of rubber, organic swelling agents e. g. benzene are used the action thereof may be diminished if necessary by an admixture of inert diluent, e. g. lower paraflin hydrocarbons. It is most convenient to be able to employ the same type of liquid, usually aqueous, both for the application of the coating materials and for the swelling of the same after fabric formation. To this end the coatings or deposits applied from solutions or dispersions in a liquid e. g. water, may be so treated by physical, chemical or other means that on treatment with the same liquid swelling and no immediate solution or substantial softening takes place.
Thus for example the crepe threads may be coated'or impregnated with a solution ofcasein in water containing an alkali and then treated with an acid, or with a salt of a heavy metal or of calcium or other alkaline earth metal, whereby the casein becomes converted into an insoluble or difllcultly soluble form which, after drying, swells when treated with water but does not dissolve or become very soft or yielding. Again where casein is applied in the form of an aqueous ammoniacal solution simple drying is usually sufllcient to effect removal of ammonia and leave a deposit or coating of casein capable of swelling in water in the desired manner. Coatings of casein or other albuminous materials may also be treated with formaldehyde or tannic acid in order to reduce their tendency to become unduly soft or yielding in water. The yarns may for instance be passed through an ammoniacal solution of casein and then through formaldehyde solution. In some cases the agents adapted'to modify the coatings may be applied in admixture with the coating materials. Thus an ammoniacal solution of casein containing formaldehyde may be applied to the yarns or threads, a subsequent drying serving to fix a difflcultly soluble casein compound thereon. Again some materials, for example rubber latex, may be applied as aqueous dispersions and the latter converted on thethreads into the desired coatings or deposits, capable of being swollen by water, by drying or other treatment adapted to effect coagulation of the dispersion.
As stated above casein has been found particularly suitable for the coating or impregnation of crepe threads in accordance with the invention. Casein may for instance, readily be dissolved or dispersed in water with the aid of an alkali such as borax, caustic soda, or ammonia. Such solutions or dispersions applied to textile yarns leave, on simple drying in the caseof ammoniacal solutions, and drying and acidifying in the case of some other alkaline solutions, deposits or coatings which swell on treatment with suitable aqueous baths without becoming very soft or yielding. A yarn, of cellulose acetate or other fibres, prepared with casein in the aforesaid manner and then given a high degree of twist, e. g. 60-80 turns per inch, shrinks considerably when immersed in an aqueous bath, and the yarns are eminently suitable for the production of fabrics exhibiting crpe effects. For example the crping of fabrics incorporating the said yarns may be readily effected, that is to say the fabrics may be caused to exhibit crepe effects, by treatment in a suitable aqueous bath.
It will be appreciated that any treatment applied, whether for the purpose of applying, modifying, or swelling the coatings or deposits of the crepe threads should not be such as to affect prejudicially the properties of the filaments composing the crepe threads.
The solutions or dispersions of casein, algin, rubber latex, or the like employed for coating or impregnating crepe threads in accordance with the invention may contain, in addition to dissolving or dispersing agents where these are employed, other substances capable of modifying the character of the coatings. Thus, for example, in some cases it has been found advantageous to add to the solutions or dispersions softening agents, e. g. glycerine, or lubricating agents, e. g. oils or soaps for instance sodium stearate. Where crepe threads are to be prepared from yarns made of or containing cellulose acetate or other cellulose esters, it has been found advantageous to apply the coating or impregnating material from solutions or dispersions which are alkaline but not strongly alkaline. For example the solutions or dispersions may be rendered alkaline with an aliphatic amine.
The following are examples of coating solutions which may be used for preparing the crepe threads in accordance with the invention, the various quantities being expressed in parts by weight.
V I Parts (1) Casein 8 Ammonia 880 4 Water 96 (2)- Casein 4 Dextrin 4 Ammonia 2 -Water 98 (3) Egg albumen 2 Water 4 Glycerine 1 (4) Gelatine 10 Casein 20 Water 400 Caustic soda 1 Sodium stearate 2 The application of solutions or dispersions of casein or the like to the crepe threads may be effected in any desired or convenient manner, for example, by any of the known methods used in solutions ordispersions, or thev threads may be passed continuously through the solutions or dispersions, then through a suitable drying device, and thenjto a winding and twisting apparatus where the high degree of twist necessary incrpe threads maybe'applied- Again the yarn may be wound unsuitable bobbins, the latter placed in closed containers, and the coating or impregnat ingsolution introducedafter evacuating the conhaving a left hand twist and crepe threads having a right hand twist and prepared in accordance with my invention. The threads having right hand twist and those having'left' hand twist may be incorporated inv any convenient manner, for example pairs of weft threads of right hand twist may alternate with pairs of threads of left hand twist. 4
The invention is applicable to the production of textile fabrics having crepe threads of any desired textile materials and is particularly aptainers. The yarn may thenbedried while wind-pp'licable to the production of fabrics from crepe ing off onto other bobbins or packages.
In the case of artificial threads the treatment with the solutions or dispersions may take place continuously with their production; .for example a bundle. of filaments. of cellulose acetate issuing from a dry spinning apparatusmay be passed directly through a bath or'through or over another suitable application device supplied with one of the aforesaid solutions or dispersions.
The application of the casein, algin or like material to the yarns to be used as crepe threads is preferably effected in such a manner that the individual filaments constituting the said yarns are effectively coated. The application is in. consequence preferably effected while the yarns are in the untwisted or only slightly twisted state.
The after-treatment applied to the fabrics for the purpose of causing the coatings'of the crepe threads to swell and crping of the fabrics to occur may, as indicated previously, vary according to the nature of the said coatings. Thus, for example, it may comprise a simple treatment with water with or without addition of substances adapted to vary the swelling action of the bath, for instance soap, alkali metal salts, e. g. sodium 'chloride, or acids, e. g. hydrochloric acid. If
desired the swelling treatment may be combined with another subsequent treatment, for example the removal of the coating materials or dyeing.
After crping has been effected the coatings or deposits on the crpe threads may be removed in any convenient manner, for example, where the coating is of casein, by scouring in a bath containing alkali or soap. i
If desired the removal of the coatings or deposits may be effected in the same bath as the swelling by a suitable adjustment of the composition, temperature, etc-of the bath. Thus, for example, woven material containing crepe threads coated with casein may beentered into an alkali or soap bath of such concentration and temperature that the coatings become swollen but not immediately removed. As soon as the coatings have become swollen to the degree required to cause the desired crping of the fabric to occur, the concentration and/or temperature of the bath maybe increased for the purpose of removing the coating.
The degree of twist imparted to the yarns or threads serving to give the crepe effect may be similar to that commonly employed in the production of crpe threads from silk in the gummed state, but any other suitable degree of twist, whether higher or lower, may be employed according to the effects it is desired to produce.
The crepe threads produced in accordance with the invention may be incorporated into fabrics in any desired manner, for example the weft alone may be wholly on partially composed of such threads, or the warp may also contain them. In general it is found convenient to employ threads of relatively low twist in the warp and to employ as the weft both crepe threads threads made of degummed silk or made of yarns consisting of or containing artificial filaments of for. example, regenerated cellulose or cellulose esters or cellulose ethers. Examples of such cellulose esters are cellulose formate. acetate, propionate and butyrate, and among the ethers may be mentioned ethyl, methyl, and benzyl cellulose and the analogous condensation products of cellulose and glycols or polyhydric alcohols.
What I claim and desire to secureby Letters Patent is:--
1. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads with an albuminous material dispersible in water, modifying the coating so as to render it capable of being swelled by water without becoming relatively yielding, twisting the threads to a high degree, incorporating'in fabrics the highly twisted crepe threads so produced, and then subjecting thesaid fabrics to an aqueous treatment.
2. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads with an albuminous material dispersible in water, subjecting the coated threads to the action of formaldehyde, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
, 3. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads of cellulose acetate with an alkali casein compound, liberating casein therefrom on the threads, twistingthe threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
4. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads of cellulose acetate with an albuminous material dispersible in water, subjecting the coated threads to the action of formaldehyde, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
5. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads of cellulose acetate withgelatin, subjecting the threads to the actionof formaldehyde, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
6. The process of producing textile fabrics exhibiting crepe effects which comprises coating threads of cellulose acetate with an albuminous material disperisble in water, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced,and then subjecting the said fabrics to the action of an aqueous salt solution. H V
7. Highly twisted crepe threads of cellulose acetate impregnated with a compound of an albuminous material and formaldehyde adapted to swell in water without becoming relatively yielding.
8. The process of producing textile fabrics exhibiting crepe effects, which comprises providing threads with a coating of a normally water-dispersible sizing agent modified to render it capable of being swelled by water without becoming relatively yielding, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced and then subjecting the said fabrics to an aqueous treatment.
9. The process of producing textile fabrics exhibiting crepe eii'ects, which comprises coating threads with a water-soluble compound of casein with a base, liberating casein therefrom on the threads, twisting the threads to a high degree, incorporating in fabrics the highly twisted crepe threads so produced, and then subjecting the said fabrics to an aqueous treatment.
ace-Lisa 10. The'process of producing textile fabrics exhibiting crepe effects, which comprises coating threads of cellulose acetate with an alkali casein- 13. Highly twisted cellulose l acetate crepe,
threads of which the-indiyidualfilam'ents are coated with a compound of an albuminous rml-' terial and formaldehyde.
WILLIAM ALEXANDER mom.
US491070A 1929-11-13 1930-10-24 Textile materials Expired - Lifetime US2007182A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771760A (en) * 1953-07-13 1956-11-27 Patentex Inc Process for producing knitted fabric
US3660974A (en) * 1970-08-31 1972-05-09 Owens Corning Fiberglass Corp Industrial belt construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771760A (en) * 1953-07-13 1956-11-27 Patentex Inc Process for producing knitted fabric
US3660974A (en) * 1970-08-31 1972-05-09 Owens Corning Fiberglass Corp Industrial belt construction

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