US3816212A - Process for bonding and flame proofing webs of synthetic fibers - Google Patents

Process for bonding and flame proofing webs of synthetic fibers Download PDF

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Publication number
US3816212A
US3816212A US00089531A US8953170A US3816212A US 3816212 A US3816212 A US 3816212A US 00089531 A US00089531 A US 00089531A US 8953170 A US8953170 A US 8953170A US 3816212 A US3816212 A US 3816212A
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United States
Prior art keywords
web
percent
synthetic fibers
webs
weight
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US00089531A
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Brien S O
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Wyeth Holdings LLC
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American Cyanamid Co
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    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins
    • D06M15/43—Amino-aldehyde resins modified by phosphorus compounds
    • D06M15/433—Amino-aldehyde resins modified by phosphorus compounds by phosphoric acids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S260/00—Chemistry of carbon compounds
    • Y10S260/24—Flameproof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y10S428/921—Fire or flameproofing

Definitions

  • the invention relates to a method for forming a bonded and flame retardant nonwoven web of syn-' thetic fibers.
  • Nonwoven webs of synthetic fibers are used as interliners in quilted outer garments.
  • Such webs are made, as well known in the art, by random orientation of synthetic fibers in layers in any desired quantity, depending on the density and thickness desired in the final treated web.
  • flame re- I such as polyester, polyamide and acrylic fibers may be employed.
  • thermosetting aminoplast resins of use in this invention are of the conventional types, and include melgninerforrnaldeliyde condensates, ureai'ormaldehyde condensates, uron-formaldehyde condensates, triazone-formaldehyde condensates, etc.
  • the resulting bonded polyester web had a thickness of 0.25 inch and its flame retardancy was commercially acceptable.
  • EXAMPLE 2 g A loose web of acrylic fiber was treated in a pad bath containing percent of partially methylolated trimethylolmelamine, 8 percent cyanamide and 2 percent of 85 percent orthophosphoric acid, to obtain a wet pickup of about 250 percent. The treated web was dried for about five minutes at 100C. and then clamped to a methylolated products can'be alkylated by reaction with lower alcohols, also according to conventional procedures.
  • the preferred resins are methylolated polymethylol melamines.
  • the resin, cyanamide and phgsphoricacidpan be applied simultaneously or separately to the web. Solutions of the agents in water or other inert solvent are conveniently applied by padding, spraying or dipping.
  • the amount of aminoplast resin applied to the web should be between 5 percent and 25 percent, preferably between 7.0 percent and 15.0 percent, based on the weight of the web.
  • the amount of cyanamide applied to the web should be between 2 percent and 20 percent, preferably between 5 percent and 10 percent, based on the weight of the web.
  • the amount of phosphoric acid applied to the web should be between 1 percent and 5 percent, preferably between 2 percent and 3 percent, based on the weight of the web.
  • the treated webs are dried to remove the water or other solvent and are then heated at a temperature between l and 180C, preferably between 149 and l63C.. to effect a cure of the aminoplast resin. l-fdesired, the thickness of the web can be maintained me chanically during the curing step.
  • EXAMPLE l A pad bath containing 7.2 percent of a partially methmge dltimcfllflgL lsi-lamine, 5 percent of anamije and 3.3 percent of 85 percent orthophosphoric acid was applied to a loose web of polyester (Dacron brand) fibers by a standard padding procedure. A wet pickup of 300 percent based on the weight of the web was obtained. The treated loose web was dried for five minutes at 105C, and the web was then clamped to a thickness, of 0.25 inch and heated at 150C. for five minutes. The resulting acrylic web had a final thickness of about 0.25 inch and commercially acceptable flame retardancy.
  • a method for forming a bonded and flame retardant nonwoven web of synthetic fibers comprising impregnating the web with an aqueous solution of a thermosetting aminoplast r sin, cyanamide and phosphoric acid and heating the web to effect a cure of the finish on the web.
  • thermosetting aminoplast resin is a melamine-formaldehyde condensation product.
  • a method as in claim 1 wherein the amount of aminoplast resin is from about 5 to 25 percent based on the weight of the web.
  • a method as in claim 1 wherein the amount of cyanamide is from about 2 to 20 percent based on the weight of the web.
  • a method for forming a bonded and flame retardant nonwoven web of synthetic fibers comprising impregnating the web with an aqueous solution of a thermosetting aminoplast resin, cyanamide and phosphoric acid and heating the web to effect a cure of the finish on the web, said heating being at a temperature of about 130 to lC.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Method for forming a bonded and flame retardant non-woven web of synthetic fibers by treating a web of non-woven synthetic fibers with a thermosetting aminoplast resin, cyanamide and phosphoric acid, and thereafter heating said web at an elevated temperature.

Description

lewmda 513i {Nib SEARCH R00 Umted Sta1 1111 3,816,212
OBrien 1 1 June 11, 1974 SUBS'HTUTE FOR M1SS1NG X11 1 1 PROCESS FOR BONDING AND FLAME 2.781.281 2/1957 Berger 117/136 O G WE 0 SYNTHETIC FIBERS 2,953,480 9/1960 Burncll 1 17/137 3.047.425 7/1962 Hirshfield et al.. 117/136 X [75] Inventor: Samuel James 0 Bnen, Dunnellen, 3.253.881 5/1966 Donahue 117/137 x NJ. 3.479.211 11/1969 Goldstein 117/136 Assigneez American Cyanamid p y, 3.496.155 2/1970 0 Connor et al. 8/192 Stamford, Conn. j 22 Filed: Nov. 13 1970 3 Primary ExaminerGe0rge F. Lesmes Assistant Examiner-J. Cannon PP' N05 8953] Attorney, Agent, or Firm-Charles Joseph Fickey [52] US. Cl. 156/331, 1013/15 FP, 117/136, 117/137. 117/138.8 F, 117/138.8 N, [57] ABSTRACT 1 117/138.8 UA, 161/403, 260/294, 2 60/DIG. I 24 Method for forming a bonded and Ham! retardant f C0915/06, 344d 1/ 844d 1/09 non-woven web of synthetic fibers by treating a web of Field of Search 156/331; 106/15 FF; non-woven synthetic fibers with a thermosetting ami- 252/81; 117/136, 137 noplast resin, cyanagnide and phosghoric acid, and
thereafter heating said web at an elevated tempera- [5 6] References Cited ture.
UNITED STATES PATENTS 2,488.034 1 1/1949 Pingree et al 1 17/136 6 Claims, No Drawings PROCESS FOR BONDING AND FLAME PROOFING WEBS OF SYNTHETIC FIBERS The invention relates to a method for forming a bonded and flame retardant nonwoven web of syn-' thetic fibers.
Nonwoven webs of synthetic fibers, particularly poly- I ester fibers such as Dacron, are used as interliners in quilted outer garments. Such webs are made, as well known in the art, by random orientation of synthetic fibers in layers in any desired quantity, depending on the density and thickness desired in the final treated web. In view of the current interest, especially the em phasis by the various governmental bodies, in flame re- I such as polyester, polyamide and acrylic fibers may be employed.
The thermosetting aminoplast resins of use in this invention are of the conventional types, and include melgninerforrnaldeliyde condensates, ureai'ormaldehyde condensates, uron-formaldehyde condensates, triazone-formaldehyde condensates, etc. The
thickness of 0.25 inch and heated at 160C. for five minutes. The resulting bonded polyester web had a thickness of 0.25 inch and its flame retardancy was commercially acceptable.
EXAMPLE 2 g A loose web of acrylic fiber was treated in a pad bath containing percent of partially methylolated trimethylolmelamine, 8 percent cyanamide and 2 percent of 85 percent orthophosphoric acid, to obtain a wet pickup of about 250 percent. The treated web was dried for about five minutes at 100C. and then clamped to a methylolated products can'be alkylated by reaction with lower alcohols, also according to conventional procedures. The preferred resins are methylolated polymethylol melamines.
The resin, cyanamide and phgsphoricacidpan be applied simultaneously or separately to the web. Solutions of the agents in water or other inert solvent are conveniently applied by padding, spraying or dipping.
The amount of aminoplast resin applied to the web should be between 5 percent and 25 percent, preferably between 7.0 percent and 15.0 percent, based on the weight of the web.
The amount of cyanamide applied to the web should be between 2 percent and 20 percent, preferably between 5 percent and 10 percent, based on the weight of the web.
The amount of phosphoric acid applied to the web should be between 1 percent and 5 percent, preferably between 2 percent and 3 percent, based on the weight of the web.
The treated webs are dried to remove the water or other solvent and are then heated at a temperature between l and 180C, preferably between 149 and l63C.. to effect a cure of the aminoplast resin. l-fdesired, the thickness of the web can be maintained me chanically during the curing step.
EXAMPLE l A pad bath containing 7.2 percent of a partially methmge dltimcfllflgL lsi-lamine, 5 percent of anamije and 3.3 percent of 85 percent orthophosphoric acid was applied to a loose web of polyester (Dacron brand) fibers by a standard padding procedure. A wet pickup of 300 percent based on the weight of the web was obtained. The treated loose web was dried for five minutes at 105C, and the web was then clamped to a thickness, of 0.25 inch and heated at 150C. for five minutes. The resulting acrylic web had a final thickness of about 0.25 inch and commercially acceptable flame retardancy.
EXAMPLE 3 A polyamide web (Nylon) was treated as in Example 1, with similar results.
EXAMPLE 4 When the procedure of Example 1 was repeated with substitution of an equal amount of dimethylol 4,5- dihydroxydiethyleneurea for the partially methylolated trimethylol melamine, essentially the same results were obtained.
EXAMPLE 5 When the procedure of Example 1 was repeated with substitution of an equal amount of dimethylolmelamine for the partially methylolated trimethylolmelamine, essentially the same results were obtained.
substitution of an equal amount of dimethylolurea for the partially methylolated trimethylol melamine, the
resulting polyester web had a high degree of flame retardancy. f l clairn:
1. A method for forming a bonded and flame retardant nonwoven web of synthetic fibers comprising impregnating the web with an aqueous solution of a thermosetting aminoplast r sin, cyanamide and phosphoric acid and heating the web to effect a cure of the finish on the web.
2. A method as in claim 1 where the synthetic fiber is a polyester fiber and the thermosetting aminoplast resin is a melamine-formaldehyde condensation product.
3. A method as in claim 1 wherein the amount of aminoplast resin is from about 5 to 25 percent based on the weight of the web.
4. A method as in claim 1 wherein the amount of cyanamide is from about 2 to 20 percent based on the weight of the web.
5. 'A method as in claim 1 wherein the amount of phosphoric acid is from about 1 to 5 percent based on the weight of the web.
6. A method for forming a bonded and flame retardant nonwoven web of synthetic fibers comprising impregnating the web with an aqueous solution of a thermosetting aminoplast resin, cyanamide and phosphoric acid and heating the web to effect a cure of the finish on the web, said heating being at a temperature of about 130 to lC.

Claims (5)

  1. 2. A method as in claim 1 where the synthetic fiber is a polyester fiber and the thermosetting aminoplast resin is a melamine-formaldehyde condensation product.
  2. 3. A method as in claim 1 wherein the amount of aminoplast resin is from about 5 to 25 percent based on the weight of the web.
  3. 4. A method as in claim 1 wherein the amount of cyanamide is from about 2 to 20 percent based on the weight of the web.
  4. 5. A method as in claim 1 wherein the amount of phosphoric acid is from about 1 to 5 percent based on the weight of the web.
  5. 6. A method for forming a bonded and flame retardant nonwoven web of synthetic fibers comprising impregnating the web with an aqueous solution of a thermosetting aminoplast resin, cyanamide and phosphoric acid and heating the web to effect a cure of the finish on the web, said heating being at a temperature of about 130* to 180*C.
US00089531A 1970-11-13 1970-11-13 Process for bonding and flame proofing webs of synthetic fibers Expired - Lifetime US3816212A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950589A (en) * 1972-03-23 1976-04-13 Toray Industries, Inc. Melt-resistant synthetic fiber and process for preparation thereof
US4024308A (en) * 1974-11-25 1977-05-17 Hooker Chemicals & Plastics Corporation Durably flame proofed textile materials
US4119598A (en) * 1975-08-22 1978-10-10 Pearson Glenn A Fire retardant urea-formaldehyde compositions
US4215172A (en) * 1975-08-22 1980-07-29 Pearson Glenn A Novel resinous coating compositions
US4241145A (en) * 1979-09-17 1980-12-23 Velsicol Chemical Corporation Novel intumescent composition
US4373010A (en) * 1980-10-14 1983-02-08 Koppers Company, Inc. Non-resinous, uncured tire retardant and products produced therewith
US20050025890A1 (en) * 2003-07-30 2005-02-03 Ying-Ming Cheng Method for manufacturing flame-retardant blanket
US20070006383A1 (en) * 2005-07-06 2007-01-11 Ogle Steven E Mattress with substantially uniform fire resistance characteristic
US20070202294A1 (en) * 2000-03-13 2007-08-30 L&P Property Management Company Protective fire retardant component for a composite furniture system
US20080107148A1 (en) * 2003-11-04 2008-05-08 L&P Property Management Company Thermal properties testing apparatus and methods
US20090126119A1 (en) * 2000-03-13 2009-05-21 L&P Property Management Company, A Delaware Corporation Fire resistant insulator pad
EP2746438A1 (en) * 2012-12-20 2014-06-25 Resopal Gmbh Amino-plastic resin film
US10252200B2 (en) 2016-02-17 2019-04-09 Hollingsworth & Vose Company Filter media including a filtration layer comprising synthetic fibers
US11014030B2 (en) 2016-02-17 2021-05-25 Hollingsworth & Vose Company Filter media including flame retardant fibers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488034A (en) * 1943-11-18 1949-11-15 Sun Chemical Corp Flame resistant materials
US2781281A (en) * 1955-05-23 1957-02-12 Ciba Ltd Flame-proofing of textiles
US2953480A (en) * 1953-11-18 1960-09-20 American Cyanamid Co Process for producing fire-retardant nylon fabric
US3047425A (en) * 1959-07-16 1962-07-31 Monsanto Chemicals Method for producing flame and soil resistant acrylic polymer fibers containing carpet fabric
US3253881A (en) * 1962-06-14 1966-05-31 Marguerite S Donahue Method of flameproofing a cellulosic textile
US3479211A (en) * 1967-10-27 1969-11-18 Continental Can Co Method of flameproofing cellulosic materials
US3496155A (en) * 1968-10-03 1970-02-17 American Cyanamid Co Guanylated polyhydroxylic polymers and process for preparing same under strongly acidic aqueous conditions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488034A (en) * 1943-11-18 1949-11-15 Sun Chemical Corp Flame resistant materials
US2953480A (en) * 1953-11-18 1960-09-20 American Cyanamid Co Process for producing fire-retardant nylon fabric
US2781281A (en) * 1955-05-23 1957-02-12 Ciba Ltd Flame-proofing of textiles
US3047425A (en) * 1959-07-16 1962-07-31 Monsanto Chemicals Method for producing flame and soil resistant acrylic polymer fibers containing carpet fabric
US3253881A (en) * 1962-06-14 1966-05-31 Marguerite S Donahue Method of flameproofing a cellulosic textile
US3479211A (en) * 1967-10-27 1969-11-18 Continental Can Co Method of flameproofing cellulosic materials
US3496155A (en) * 1968-10-03 1970-02-17 American Cyanamid Co Guanylated polyhydroxylic polymers and process for preparing same under strongly acidic aqueous conditions

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950589A (en) * 1972-03-23 1976-04-13 Toray Industries, Inc. Melt-resistant synthetic fiber and process for preparation thereof
US4024308A (en) * 1974-11-25 1977-05-17 Hooker Chemicals & Plastics Corporation Durably flame proofed textile materials
US4119598A (en) * 1975-08-22 1978-10-10 Pearson Glenn A Fire retardant urea-formaldehyde compositions
US4215172A (en) * 1975-08-22 1980-07-29 Pearson Glenn A Novel resinous coating compositions
US4241145A (en) * 1979-09-17 1980-12-23 Velsicol Chemical Corporation Novel intumescent composition
US4373010A (en) * 1980-10-14 1983-02-08 Koppers Company, Inc. Non-resinous, uncured tire retardant and products produced therewith
US20070202294A1 (en) * 2000-03-13 2007-08-30 L&P Property Management Company Protective fire retardant component for a composite furniture system
US20090126119A1 (en) * 2000-03-13 2009-05-21 L&P Property Management Company, A Delaware Corporation Fire resistant insulator pad
US20050025890A1 (en) * 2003-07-30 2005-02-03 Ying-Ming Cheng Method for manufacturing flame-retardant blanket
US20080107148A1 (en) * 2003-11-04 2008-05-08 L&P Property Management Company Thermal properties testing apparatus and methods
US20070006383A1 (en) * 2005-07-06 2007-01-11 Ogle Steven E Mattress with substantially uniform fire resistance characteristic
EP2746438A1 (en) * 2012-12-20 2014-06-25 Resopal Gmbh Amino-plastic resin film
US9592649B2 (en) 2012-12-20 2017-03-14 Resopal Gmbh Amino resin film and method of producing the same
US10252200B2 (en) 2016-02-17 2019-04-09 Hollingsworth & Vose Company Filter media including a filtration layer comprising synthetic fibers
US11014030B2 (en) 2016-02-17 2021-05-25 Hollingsworth & Vose Company Filter media including flame retardant fibers
US11123668B2 (en) 2016-02-17 2021-09-21 Hollingsworth & Vose Company Filter media including a filtration layer comprising synthetic fibers
US11738295B2 (en) 2016-02-17 2023-08-29 Hollingsworth & Vose Company Filter media including flame retardant fibers

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