[go: up one dir, main page]

WO1980000709A1 - Compositions de revetement de fibres, procede d'application et produit obtenu - Google Patents

Compositions de revetement de fibres, procede d'application et produit obtenu Download PDF

Info

Publication number
WO1980000709A1
WO1980000709A1 PCT/US1979/000767 US7900767W WO8000709A1 WO 1980000709 A1 WO1980000709 A1 WO 1980000709A1 US 7900767 W US7900767 W US 7900767W WO 8000709 A1 WO8000709 A1 WO 8000709A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
substrate
further characterized
weight
fabric
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.)
Ceased
Application number
PCT/US1979/000767
Other languages
English (en)
Inventor
G West
W Polfus
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.)
Reeves Brothers Inc
Original Assignee
Reeves Brothers Inc
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 Reeves Brothers Inc filed Critical Reeves Brothers Inc
Priority to DE19792953173 priority Critical patent/DE2953173A1/de
Publication of WO1980000709A1 publication Critical patent/WO1980000709A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
    • C08K5/57—Organo-tin compounds

Definitions

  • the present invention relates to rainwear products which have superior durability, breathability and "handle". Notably, these products are substantially wind-resistant and water-repellent.
  • a synthetic fiber may resist water absorption, and yet fabrics composed of that fiber can be thoroughly wetted by water. What occurs is that water coating the surface of each fiber fills voids between fibers of the fabric. Because a fiber is hydrophobic, does not mean that fabrics made from them are water-repellent. In fact, voids which lie between fibers can act like capillaries to enhance the spreading and wicking of water. Consequently, fabrics are generally treated with special finishes to impart desirable characteristics.
  • the present invention discloses a superior formulation, method of application and product thereof which overcomes the disadvantages of the prior art noted above and which is substantially wind-resistant and water-repellent.
  • a unique chemical formulation which, when avpplied to a fabric, results in a product that is substantially wind-resistant and water-repellent.
  • the formulation comprises two criti cal components, namely, a silicone polymer and a tin cata lyst. More specifically, the first component is a poly dimethyl siloxane compound having a concentration between about 93 to about 99% by weight. Siloxane compounds are manufactured by Dow Corning.
  • the second component consists of a tin catalyst like dibutyl tin diacetate or preferably dibutyl tin dilaurate, both of which are manufactured by Dow Corning. The concentration of the tin catalyst should be between about 0.5 to about 1.5% by weight.
  • the formulation includes an acid like glacial acetic acid manufactured by Industrial Chemical and an aromatic solvent like xylol manufactured by Amsco.
  • the optional ingredients perform the function of extending the shelf life of the formulation once the polymer and tin catalyst are mixed.
  • the concentration ranges for the acid and solvent are 0.0 to about 1.5% by weight and 0.0 to about 5.0% by weight, respectively.
  • a method is also taught for applying the formulation to a substrate such as fabrics used in manufacturing raincoats . The method comprises three basic steps. One step includes depositing the formulation on a substrate, uniformly distributing it across the width of the substrate and curing the product. Another step comprises dipping the substrate in a bath of silicone of fluorocarbon solution and removing excess solution. The other treatment can be performed either before or after the first mentioned step.
  • the last step comprises compressing the multicoated fibers of the substrate from the first two steps.
  • the fabric is porous, durable, and has a good handle.
  • the product is substantially wind-resistant and water-repellent. Over all, it overcomes the disadvantages of the prior art noted above.
  • the formulation of the subject invention comprises two critical components as well as two optional, components.
  • the formulation listed below, along with the range of concentration for each of the components, is a typical formulation within the purview of the subject invention:
  • the preferred formulation is:
  • Aromatic Solvent 3.0 The poly dimethyl siloxane component is critical to the formulation.
  • a suitable siloxane is manufactured by Dow
  • the viscosity of the siloxane is between 20,000 to 40,000 centipoise at 25°C.
  • the silicone content is about 30% by weight.
  • suitable catalysts are dibutyl tin diacetate, dibutyl tin dilaurate, and dibutyl tin octoate.
  • the tin content of such catalysts are important.
  • the tin content is 8.7% by weight and 33.4% by weight for the respective Dow Corning catalysts. That concentration of tin is contained within the concentration range of 0.5 to 1.5% by weight of the catalyst component.
  • the two remaining components are optional and function to reduce the viscosity of the formulation. More importantly, they increase the life of the formulation so that it is more suitable for commercial applications.
  • the acid is acetate acid.
  • Other acids are also suitable.
  • the aromatic solvent is typically xylol.
  • Other solvents, such as toluene, are suitable. Both the acid and solvent pass to the atmosphere during processing.
  • the method comprises three basic steps.
  • One step is directed to the application of the unique formulation.
  • the formulation is deposited upon a surface of a taut substrate, which continuously passes beneath the point of deposition.
  • the formulation can be applied to one or both sides of the substrate. However, application to one side is preferred. Multiple depositions or coatings are within the purview of the subject invention.
  • a conventional floating doctor blade having a thickness of about 0.25 to 0.40, is used to uniformly spread the formulati ⁇ n across the width of the substrate.
  • the substrate and deposited formulation are cured in an oven having a temperature of about 300°F. That conventional oven may have two stages with the first stage at 300°F., while the second stage is at 325°F.
  • the purpose of the first mentioned step is to impart both wind-resistance and water-repellency to the finished substrate.
  • the viscosity of the formulation is typically between about 20,000 to about 100,000 centipoise as measured with a Brookfield Viscometer. A preferred range of viscosity is between about 20,000 and about 40,000 centipoise. If the viscosity is lower than 20,000 centipoise, the formulation will run through the substrate and stiffen it. If the viscosity is higher than about 100,000 centipoise, it becomes difficult to uniformly coat the surface of and penetrate the substrate.
  • Another step in the method comprises padding the substrate in a bath containing a silicone or a fluorocarbon solution along with the attendant removal of excess solution.
  • Typical silicone and fluorocarbon solutions appear below:
  • Acetic Acid (56%) Acetic Acid 0.5 (Taylor Chemical)
  • a very thin coat of either solution is applied and produces an add-on weight to the finished product of about 0.05 to about 0.1 oz./square yard.
  • the solution is dried for three minutes at about 250°F. and cured for about two minutes at 340°F.
  • This other procedure can be applied either before or after application of the first step. If the solution is applied prior to the application of the formulation, a silicone solution is preferred.
  • the purpose of this paddingtechnique is to impart greater water-repellency to the sub-strate.
  • the substrate is padded on both of its sides.
  • the last step in the method comprises compressing the substrate. For example, if a fabric is used, it is compressed or shrunk by conventional techniques about 1/10 of 1% in its width. Its length is compressed by a similar amount. The purpose of this step is to give the treated substrate a suitable handle.
  • the add-on weight to the substrate should be between about 0.4 to about 0.8 oz./square yard. significant is the fact that present invention is directed to coating fibers rather than coating the surface of a substrate constructed from these fibers.
  • Typical substrates used in the subject of the invention are polyester-cotton combinations at various percent mixtures, natural fiber fabrics, synthetic materials, and combinations of natural and synthetic materials. Some fabrics are not acceptable, such as canvas and taffeta. The density of such fabrics varies between about 3.0 to about 6.0 oz./square yard.
  • the fabric must be closely woven or tight, that is, have a thread count of at least about 90 threads per inch in the warp and at least about 68 threads per inch in the weft or fill.
  • a typical fabric would have a thread count of 106 X 70 threads per inch, i.e. warp X weft. A thread count less than those noted above allows the formulation to pass through the substrate.
  • the initial viscosity of each formulation is about 20,000 centipoise.
  • the physical properties of the rainwear mate rial manufactured in each example are also described.
  • a typical testing apparatus comprises an eight-foot water column which is connected to a spray nozzle facing a test sample that is stretch over a hoop. The specimen is backed by a weighed blotter and is sprayed for five minutes. Thereafter, the blotter is again weighed to ascertain any increase in weight caused by penetration of water through the sample. An increased weight of five grams is acceptable. An increased weight of about one gram is excellent.
  • Water vapor transmission is determined by using a special metal cup into which is measured about 90 mis of distilled water. The test sample is clamped over the cup and the level of the water is within about 20 mm of the fabric sample. The apparatus, including cup, water and sample, is weighed. After 24 hours in a conditioned atmosphere, the cup is re-weighed to determine loss of water which penetrated the sample. The data is reported in grams/hr./ square meter. A number of 25-35 is considered ideal.
  • EXAMPLE I A polyester-cotton fabric having a thread count of 106 threads per inch by 70 threads per inch was tested.
  • the fabric sample was processed according to the method detailed above. Specifically, a formulation was deposited on the sample.
  • the formulation comprised:
  • That formulation was deposited on the fibrous substrate and evenly spread over one of its surfaces. The sample was then cured at about 300°F. Then the sample was padded with the fluorocarbon composition described in detail above. Excess solution was removed. The sample was dried for about three minutes at 250°F. and then cured for about two minutes at 340°F. That sample was then compressively shrunk using the conventional technique described above. The finished product containing multicoated fibers was analyzed. Pertinent physical properties are described below:
  • Example I was repeated except the formulation differed:
  • Example II The physical properties of the product resulting from using the above formulation was substantially identical to those obtained in Example II.
  • the decrease in the concentration of acetic acid merely decreased the shelf life of the formu lation and increased its viscosity all in relation to the formula used in Example II.
  • Example II was again repeated except that a different cata lyst was used.
  • the formulation appears below:
  • Example II was repeated on a commercial scale. Approximately 120 yards of sample were processed. Formula used was as follows:
  • Example II utilizes the preferred formulation of the subject invention.
  • Example I was repeated except that the fabric was padded with a silicone solution described in detail above instead of the fluorocarbon solution.
  • This example was operated at a commercial scale with approximately 6000 yards of fabric being manufactured.
  • the formulation used in this commercial scale operation was: Concentration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Formulation chimique unique utilisee dans la fabrication de tissus resistants au vent et refusant l'eau. Cette formulation comprend un polymere silicone catalyse avec un compose d'etain et, facultativement, de l'acide acetique et un solvant aromatique. Un procede pour traitement de tissus comprend le depot de la formulation unique sur un tissu tendu, la distribution uniforme de celui-ci sur la largeur du tissu et la polymerisation du produit. Soit avant, soit apres ce traitement le tissu est enduit avec ou trempe dans un bain de silicone ou d'un hydrocarbure fluore. L'exces de solution est elimine. Ensuite les fibres a enduits multiples du tissu sont retrecies par compression. Un tissu qui est substantiellement resistant au vent et a la pluie est produit qui est non seulement poreux et doux mais aussi durable.
PCT/US1979/000767 1978-09-25 1979-09-24 Compositions de revetement de fibres, procede d'application et produit obtenu Ceased WO1980000709A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792953173 DE2953173A1 (de) 1978-09-25 1979-09-24 Fiber coating composition,method of application,and product thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94558978A 1978-09-25 1978-09-25
US945589 1978-09-25

Publications (1)

Publication Number Publication Date
WO1980000709A1 true WO1980000709A1 (fr) 1980-04-17

Family

ID=25483315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1979/000767 Ceased WO1980000709A1 (fr) 1978-09-25 1979-09-24 Compositions de revetement de fibres, procede d'application et produit obtenu

Country Status (8)

Country Link
JP (1) JPS55500679A (fr)
BE (1) BE878963A (fr)
CA (1) CA1132860A (fr)
FR (1) FR2436799A1 (fr)
GB (1) GB2043131B (fr)
IT (1) IT1119176B (fr)
NO (1) NO793065L (fr)
WO (1) WO1980000709A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142352A (en) * 1983-07-01 1985-01-16 Wool Dev Int Embossing fabrics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418162A (en) * 1963-12-07 1968-12-24 Shinetsu Chem Ind Co Composition of waterproof agent and process for manufacture of waterproof cloth using the same
US4007305A (en) * 1974-12-23 1977-02-08 Basf Wyandotte Corporation Method of imparting nondurable soil release and soil repellency properties to textile materials
US4077770A (en) * 1976-07-15 1978-03-07 Rouvellat Richard A Textile cleaning process including soil-repellent finish

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615078C2 (de) * 1976-04-07 1983-01-27 Wacker-Chemie GmbH, 8000 München Verfahren zur Behandlung von organischen Fasern und dabei verwendete Organopolysiloxanzusammensetzungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418162A (en) * 1963-12-07 1968-12-24 Shinetsu Chem Ind Co Composition of waterproof agent and process for manufacture of waterproof cloth using the same
US4007305A (en) * 1974-12-23 1977-02-08 Basf Wyandotte Corporation Method of imparting nondurable soil release and soil repellency properties to textile materials
US4077770A (en) * 1976-07-15 1978-03-07 Rouvellat Richard A Textile cleaning process including soil-repellent finish

Also Published As

Publication number Publication date
JPS55500679A (fr) 1980-09-18
FR2436799A1 (fr) 1980-04-18
FR2436799B1 (fr) 1984-08-10
IT7968864A0 (it) 1979-09-25
NO793065L (no) 1980-03-26
IT1119176B (it) 1986-03-03
CA1132860A (fr) 1982-10-05
GB2043131A (en) 1980-10-01
GB2043131B (en) 1983-05-18
BE878963A (fr) 1980-03-24

Similar Documents

Publication Publication Date Title
US4287261A (en) Fabric coating process and product thereof
US4369231A (en) Method of application, and product thereof
US4265962A (en) Low penetration coating fabric
KR100822641B1 (ko) 방수성 및 투습성이 우수한 수성우레탄 섬유코팅방법
EP0383310A2 (fr) Agents hydrofuges et oléofuges
DE69927185T2 (de) Wasserdampfdurchlässiges, wasserdichtes material und verfahren zu dessen herstellung
CA1132860A (fr) Composition et methode d'ensimage de fibres, et produit connexe
JPH0547666B2 (fr)
US2875092A (en) Process for chemically bonding a coating to an organic polymer substrate
EP0087537A2 (fr) Produit textile revêtu, perméable à l'humidité, imperméable à l'eau
US3360494A (en) Coating compositions of unsaturated monocarboxylic acid polymer and polyurethane
JPH09324173A (ja) 防汚加工用組成物および防汚加工方法
USRE25164E (en) Process for chemically bonding a coating
Khatton et al. Development of water repellency on jute fabric by chemical means for diverse textile uses
JPH0314676A (ja) 防水布帛の製造法
Gregorian et al. Foam Finishing: Effect of Wet Pickup.
US3616136A (en) Flocked fabrics
JP2006124901A (ja) ロータス・リーフ効果を有する布帛の製造方法およびロータス・リーフ効果を有する布帛
US3736177A (en) Water and oil-resistant,antistatic and abrasion-resistant finish for nylon fabrics
JPS6245786A (ja) 繊維品の防水処理法
KR20060036085A (ko) 페인트 어플리케이터용 불소화합물 마무리제
KR910006105B1 (ko) 방향성(芳香性) 섬유의 제조방법
JP3631810B2 (ja) 撥水加工布帛およびその製造方法
JP2623668B2 (ja) 耐モモケ性に優れた羊毛を含有する布帛
JPS61113882A (ja) 片面撥水加工布およびその製造方法

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): DE GB JP

RET De translation (de og part 6b)

Ref country code: DE

Ref document number: 2953173

Date of ref document: 19810115

Format of ref document f/p: P