CN1643202A - Nonwoven fabric having low ion content and method for producing the same - Google Patents

Nonwoven fabric having low ion content and method for producing the same Download PDF

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Publication number
CN1643202A
CN1643202A CNA038071223A CN03807122A CN1643202A CN 1643202 A CN1643202 A CN 1643202A CN A038071223 A CNA038071223 A CN A038071223A CN 03807122 A CN03807122 A CN 03807122A CN 1643202 A CN1643202 A CN 1643202A
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CN
China
Prior art keywords
spun
nonwoven fabric
woven fabrics
fiber
bonded non
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.)
Pending
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CNA038071223A
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Chinese (zh)
Inventor
A·E·D·小布克
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Milliken and Co
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Milliken and Co
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Filing date
Publication date
Priority claimed from US10/109,357 external-priority patent/US7201777B2/en
Priority claimed from US10/108,807 external-priority patent/US20030186609A1/en
Application filed by Milliken and Co filed Critical Milliken and Co
Publication of CN1643202A publication Critical patent/CN1643202A/en
Pending legal-status Critical Current

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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
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143—Wipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo
    • D06P1/221—Reducing systems; Reducing catalysts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/40—Cellulose acetate
    • D06P3/42—Cellulose acetate using dispersed dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/523—Polyesters using vat or sulfur dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
    • D06P3/8228—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The present invention relates to a nonwoven fabric having a relatively low level of ionic contaminates which is achieved by exposing the fabric to a deionized water wash, preferably, in-line with the nonwoven production process, thereby eliminating, or at least reducing, the need for an expensive and time consuming cleanroom laundering. The fabric is primarily comprised of continuous filament fibers and may be manufactured into such end-use products as cleaning wipes and protective clothing for cleanrooms and surface coating operations, such as automotive paintrooms. Also encompassed within this invention is a method for producing a nonwoven fabric having a relatively low level of ionic contaminates.

Description

Nonwoven fabric and manufacture method thereof with low ion concentration
Technical field
The present invention relates to the relatively low nonwoven fabric of content of ionic contamination, it is realized by following method: fabric is spent deionised water, preferably in the nonwoven production process, carry out, eliminate thus or reduce needs at least toilet's washing expensive and consuming time.This fabric mainly is made of continuous fiber, and can make and be used for the toilet and such as the Cleaning tool of surface coated operations such as automotive paint chamber and the final products the protective clothing.The present invention also comprises the manufacture method of the nonwoven fabric that ionic contamination content is relatively low.
Background of invention
Past manufactures rag or scraper with various fabrics, to be used for many different cleaning purposes, and for example industrial clean rooms, prefabricated surface to be coated and general cleaning.Every kind of different purposes emphasizes that all the scraper of these kinds should reach some standard.For example, the scraper that uses in the toilet must meet strict performance standard.These standards relate to sorptive force and pollution, comprise the maximum particulate of allowing, not specific extractable and independent ionic contamination.The standard that fume discharges is especially strict, and has designed the whole bag of tricks to reach these standards.For example, authorize people's such as Paley United States Patent (USP) and described a kind of scraper with melted edge for 5,271, No. 995, the sealing the margin of these scrapers can reduce the pollution that is caused by fubril.Authorize people's such as Diaber United States Patent (USP) and described a kind of tubing for 5,229, No. 181, it has only two limits to be cut and to seal, and reduces the pollution that causes because of the bulk fibre on the edge thus.Authorize people's such as Paley United States Patent (USP) and described a kind of scraper that is used for clean room environment for 5,271, No. 995, it is by using a kind of specific yarn, and promptly " nylon bright " reduces inorganic pollution.Authorize the United States Patent (USP) 5,069 of Reynolds, thereby the hot blast jet of having described 600 to 800 of a kind of uses for No. 735 melts the method that fabric is cut into several piece with fiber, form bulk fibre thus and pollute the edge sealing product that reduces.
In addition, also used finishing agent to improve the sorptive force of the scraper of making by the hydrophilic fibre of polyester and so on.For example, disclose a kind of rag that has fabric substrate and porous polymer coating among GB 2 142 225 A, wherein this coating is to be made by " sulfonated products that contains the cross-linked polymer of sulfonated aromatic residue ".
Such as Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4And so on ion normally intrinsic in the fabric.These ions may be harmful to clean room environment, especially in semi-conductor industry, because these ions: (a) can transfer in the silicon wafer circuitry; (b) can produce corrosion to silicon wafer circuitry; (c) can cause short circuit in the silicon wafer circuitry.Knownly can use deionized water to reduce or remove these ions in the fabric, they just go for like this, for example toilet's Application Areas.Deionized water has served as the attractant of fabric intermediate ion, thus with these ion bands from fabric and bring in the water, then water is removed or is filtered and utilize.Usually, use the cleanroom laundry laundering of textile fabrics, normally scraper with minimizing or removal ion, thereby reduces ion concentration.Yet, this method is very expensive and consuming time, and because the environment that in washing cycle, faces of scraper, for example too violent stirring and rinsing and be exposed to high-temperature water and chemical substance in, this method may produce adverse influence to the physical property of fabric.
Scraper can be made by knitting, weaving or bondedfibre fabric.This fabric is cut into 9 inches * 9 inches square usually.If scraper is to be used for clean room environment, need in cleanroom laundry, wash this fabric or scraper before the packing usually to remove the scraper pollution or to make minimum contamination.Cleanroom laundry can use special filter, surfactant, sequestering agent, pure water or the like to remove oil, reduce population and to extract undesirable ionic contamination.As previously mentioned, washing process expensive and consuming time is too violent and can produce adverse influence to the physical property of fabric.For example, may will be applied in washing process any finishing agent of fabric face remove, and fabric edge may be broken or be worn and torn, and causes fibrous particle to pollute undesirable increase thus.Therefore, must carry out carefully lasting monitoring with the amount of control stirring, rinsing and the speed and the duration of duration and extraction to used washing facility.
Along with the raising of interests in this industry, manufacturers have made great efforts to research and develop can be easily and satisfy new yarn and fabric to the fabric demand of contamination-free to one's profitly.Obtained such progress in the spun-bonded non-woven fabrics field.Spunbond nonwoven production process is known in the fabric technology field, and describes to some extent in a plurality of patents, for example, authorizes people's such as Dorschner No. 4,692,618, United States Patent (USP); Authorize people's such as Appel No. 4,340,563, United States Patent (USP); Authorize No. 3,338,992, the United States Patent (USP) of Kinney; Authorize No. 3,341,394, the United States Patent (USP) of Kinney; With No. 3,502,538, the United States Patent (USP) of authorizing Levy.Past, the nonwoven screen cloth that is made by these methods has been used for multiple final use, for example air cleaner, vehicle junction line (trunk linings) and roofing, these purposes have relatively low cost and almost or fully do not emphasize for considerable characteristics such as drapability, feel and wettability power such as toilet's rag and protective clothings.
Yet the latest development of spun-bonded fibre production field can produce the nonwoven fabric that drapability, feel and wettability power characteristic (" feel " describes a kind of fabric usually such as tactile properties such as softness, fastness, elasticity) are improved.For example, all transfer the United States Patent (USP) 5,899,785 and 5,970,583 of Firma CariFreudenberg, described a kind of spun-bonded non-woven fabrics volume of very thin continuous fiber and used conventional spunbond nonwoven manufacturing technique to make the method for this nonwoven fabric roll.These references disclose the spunbond composite fibre or the multicomponent fibre that can vertically split into the fiber of little dawn size by machinery or chemical action as important raw and processed materials.Yet, although this nonwoven production process compares similar knitting or weaving techniques is cheap and simple, may in cleanroom laundry, handle to satisfy final products by its fabric that makes, for example, be used for the requirement of the scraper of toilet or japanning chamber.
Therefore, need a kind of method of effectively calculating to make the nonwoven fabric that makes have the relatively low particle contamination of content, and have toilet and required enough feels, drapability and the moisture-absorption characteristicss of final use such as japanning chamber scraper and protective clothing.
Summary of the invention
According to the argumentation of front, an object of the present invention is to obtain a kind of nonwoven fabric with low ion concentration, it is suitable as rag or protective clothing in toilet or the surface coated operation such as the automotive paint chamber.This fabric typically is made of synthetic continuous fiber, and more specifically, by constituting by the multicomponent continuous fiber that chemistry or mechanism are rived along its length direction, this has strengthened feel, drapability and the moisture pick-up properties of fabric usually.Usually by with the non-woven material rinsed with deionized water, preferably in the nonwoven production process, carry out, obtain this fabric thus.Then deionized fabric may further is processed into; for example, the rag of all size or protective clothing, they need not to carry out the requirement that toilet's washing process just can reach or exceed toilet or surface coated operation; save a large amount of time and expense thus, and protected the covering with paint characteristic of fabric.
Another object of the present invention is the manufacture method that obtains having the nonwoven fabric of low ion concentration, and this nonwoven fabric is suitable as rag or the protective clothing in toilet or the surface coated operation such as the automotive paint chamber.Typically, make nonwoven fabric according to various nonwoven fabric manufacture methods well known by persons skilled in the art.Then preferably by a flowing water production process with this fabric rinsed with deionized water, carry out dried and derive (take-up).After this, this fabric further is processed into Cleaning tool or protective clothing.Scraper and/or protective clothing need not toilet's washing process and just can be used for toilet and surface coated purposes then, have saved a large amount of time and expense thus, and have protected the covering with paint characteristic of fabric.
Those skilled in the art can find out other purpose of the present invention, advantage and feature.Therefore, although will describe and disclose the present invention with some preferred specific embodiments and program, these specific embodiments and program are not in order to limit the scope of the invention.On the contrary, all alternative like this specific embodiments, program and modification all are contemplated as falling with in disclosed scope of invention and the spirit, and only are subjected to the restriction of claims and coordinate thereof.
Detailed description of the present invention
The invention discloses the nonwoven fabric that ion concentration reduces, it can be incorporated into the goods that are used for toilet and surface coated operation, also discloses the manufacture method of this fabric.At first make fabric according to standard nonwoven manufacture method well known by persons skilled in the art.These production methods comprise that spun-bond process, melt jet method, wet type become net method, dry type to become net method, heat viscosity method, flash spinning, SMS (this is spunbond, melt jet and spunbond combined method), SMMS (this is spunbond, melt jet, melt jet and spunbond combined method), and their combined method.
This fabric can be made of continuous fiber, and this continuous fiber can be single homofil, multicomponent fibre or their any combination.Multicomponent fibre can be rived along its length direction by machinery or chemical action.For example, the United States Patent (USP) 5,899,785 and 5 that all transfers Firma Carl Freudenberg and all be hereby incorporated by, 970,583 have described the spun-bonded non-woven fabrics volume of very thin continuous fiber and have used conventional spunbond nonwoven manufacturing technique to make the method for this nonwoven fabric roll.These references disclose spunbond composite fibre or the multicomponent fibre that can vertically rive by machinery or chemical action as important raw and processed materials.An example of mechanism comprises that annotating (promptly Hydroentangled (hydroentanglement)) with water under high pressure handles spun-bonded non-woven fabrics volume or the fabric of being made by these materials, thereby the multicomponent long fiber is split into single fiber.
These fibers can have different fiber sizes, but they preferably have the feature that fiber size was lower than for 5 dawn.In addition, when extruding with multicomponent fibre, these fibers preferably have the feature that the single fiber size was lower than for 1 dawn.
These fibers can comprise various fiber types, comprise polyester, for example polyethylene terephthalate, poly terephthalic acid benzophenanthrene ester (polytriphenylene terephthalate) and polybutylene terephthalate (PBT); Polyamide, for example nylon 6 and nylon 6,6; Polyolefin, for example polypropylene, polyethylene and analog; Nomex, for example Kevlar ; Polyurethane; PLA; With their any combination.
After making nonwoven fabric, typically it is used rinsed with deionized water to remove the ion in the fabric.It is preferred that the rinsing of carrying out in the nonwoven production process is handled, yet, also can separate and carry out with the nonwoven production process.Can finish rinsed with deionized water to the technology that fabric applies the liquid of controlled quatity by dip-coating, pad dyeing, spraying or any other.If, for example, use spray boom to carry out rinsed with deionized water, can use vacuum slot from fabric, to remove excessive water with this spray boom.After the rinsed with deionized water, with fabric drying.Can be by with fabric heating, at room temperature dry or their any combined method be finished drying with fabric.Can finish heating by any technology that typical case in the fabric manufacture process uses, for example from xeothermic, the microwave energy of stenter, infrared ray heating, steam, superheated steam, autoclave processing etc. or their any combination.Selecting a kind ofly when relating to the seasoning of using heat, preferred dry fabric under 300 or lower temperature is if especially fabric to small part is made of polyester.The common United States Patent (USP) of transferring the possession of 6,189, No. 189 (being hereby incorporated by) disclose a kind of by under 300 or lower temperature with the polyester textile heat setting with eliminate or reduce low-molecular weight polymer or oligomer (be also referred to as " tripolymer particle ", it is exposed to high heat-set temperature following time and can increases sharply to fabric face) thus formation manufacturing have the method for the oligosaprobic scraper of high sorptive force.When these tripolymer particles when fabric face discharges, can increase particle pollution nocuously.
After the drying, fabric is rolled usually or is derived, and can further be processed into various final products, for example, and scraper that differs in size or protective clothing.Scraper, although the desirable field that is used for the toilet or carries out surface coated, they also can be used for various preferred uses and have the final use of the fabric of low particle pollution.In addition, the protective clothing such as aseptic footwear, robe, apron, mask, gloves that requires to use in toilet or surface coated environment can be used for other industries, and for example hospital operating room, dentist's office, structive sursery operating room or any other need hang down the industry of polluting fabric.These final uses can comprise sterile drape, curtain cover, blanket, dentist's bib, gauze, bandage, adhesive tape etc.
In potential preferred a, non-limiting embodiments of the present invention, it is desirable to nonwoven fabric is increased the mechanical processing technique of this fabric thickness and water absorbing properties.The common United States Patent (USP) of transferring the possession of 4,837,902,4,918,785,5,822,835 and 6,178,607 (they are hereby incorporated by) have been described fabric and have been regulated method, its with the low-voltage high speed flow of gaseous fluid from respect to almost completely being ejected on the fabric network structure with all directions of the cloth textured flow path direction of fabric network structure tangent.This air impingement code type ground produces the zigzag ripple with small-bend radius, these ripples extend downwardly in the fabric, some fibre-the fiber that destroys thus or weaken in the network structure connects, thus the feel of reinforced fiber, drapability, thickness and moisture pick-up properties.This method can join in the nonwoven production process before or after the rinsed with deionized water process.For example, when making spun-bonded non-woven fabrics, after Hydroentangled step, take advantage of fabric and it is carried out this air impingement method still wet the time.Then this nonwoven fabric is also carried out drying as previously mentioned with rinsed with deionized water.
Another potential preferred embodiment comprises the use deionized water, and non-tap water makes nonwoven fabric, and preferably the fiber of spun-bonded non-woven fabrics is Hydroentangled.Can make this fabric Hydroentangled with the deionized water that the high speed water jet penetrates, carry out one or more in the following processing with any order then: a) air impingement, b) use rinsed with deionized water again, and c) drying.
In another potential preferred, non-limiting embodiments of the present invention, it is desirable to add chemical finish to improve operating characteristic such as aesthetic property and water imbibition, WATER REPELLENCY, particle attraction at fabric face.Whenever this chemical finish can using after fabric forms.Preferably after hydroentanglement procedure, add chemical finish, and if desired, add handling the back with the air impingement method, but typically in the end before one rinsed with deionized water.Can chemical reagent be applied on the fabric the technology that goods apply the controlled quatity liquid suspension by dip coating, pad dyeing method, spraying process, foam rubbing method or any other.Use in these technology one or more to make chemical reagent to be uniformly applied on the fabric.An example of operable chemical reagent is disclosed among the common international publication WO 01/80706 that transfers the possession of.This announcement discloses a kind of particle and has attracted finishing agent, and it can be applied on the fabric to attract and to remove lip-deep fume.
The following example has been explained various specific embodiments of the present invention but the scope that is not meant to limit the present invention.
But all embodiment all use 100 grams/square metre the spun-bonded non-woven fabrics that constitutes by continuous multicomponent splitting fiber, these fibers have carried out Hydroentangled processing with water under high pressure so that multicomponent fibre is cleaved into independent polyester and nylon 6,6 fibers along its length direction to small part according to the method for describing in two Freudenberg patents quoting before.With its ProductName Evolon  fabric well known available from Firma Carl Freudenberg of Weinheim, Germany.This fabric is made of about 65% polyester fiber and about 35% nylon, 6,6 fibers.This fabric typically obtains (point-bonded) bonding with end of standard with the form of at least two kinds of variants.Standard variants is not also carried out further adhesion process, and is for example terminal bonding.Thereby end is bonding is by heating and pressurizing thermoplastic fibre to be bonded into the process that nonwoven fabric forms discrete type fiber adherend.
Before rinsed with deionized water and rinsing after according to method of testing IEST-RP-CC-004 § 6.1.2, the ion concentration of the fabric of describing in the test implementation example.
Embodiment 1:
One 9 inches * 9 inches standard Evolon  fabric is placed the beaker that contains deionized water, stirred about 10 seconds.Fabric is taken out from beaker, squeeze out water excessive in the fabric with glove hand.The ion concentration of test fabric under wet condition then.Be the unit measurement result and be listed in the following table 1 with the umber (ppb) in per 1,000,000,000 parts.
Table 1
The ion concentration of standard Evolon  fabric before deionization (DI) water rinse and after the rinsing
Before the ion DI rinsing after (ppb) DI rinsing (ppb)
Na??????149,200??????????＜1 Li??????＜1??????????????＜1 NH 4????＜1??????????????＜1 K???????＜1??????????????＜1 Mg??????＜1??????????????＜1 Ca??????19,833???????????3420 Fl??????1100?????????????347 Cl??????76,396???????????120 NO 4????34,367???????????＜1 PO 4????＜1??????????????493 SO 4????37,333???????????940
Result in the table 1 shows Li, NH 4, K and Mg ion concentration do not change and PO 4Ion concentration increase.PO 4Increase may derive from the gloves that the people that carries out fabric test wears.This can reduce or eliminate by using nalgeen pincers operation fabric or allowing the people that tests wear another kind of gloves.Yet table 1 also shows Na, Ca, Fl, Cl, NO 4And SO 4Ion concentration all significantly reduce.These results have shown and have spent the deionised water nonwoven fabric to remove the validity of the ion in the nonwoven fabric, eliminate thus or have reduced at least expensive and the needs that wash in cleanroom laundry consuming time.Particularly, fabric of the present invention after with rinsed with deionized water, every kind of ion shown in the his-and-hers watches 1 all reached be lower than about 10, the low ion concentration of 000ppb.More preferably, fabric of the present invention after with rinsed with deionized water, every kind of ion shown in the his-and-hers watches 1 all reached be lower than about 5, the ion concentration of 000ppb.
Embodiment 2:
Repeat embodiment 1, but used fabric is the terminal adhesion type (and non-standard) of Evolon .Be the unit measurement result and be listed in the following table 2 with the umber (ppb) in per 1,000,000,000 parts.
Table 2
Terminal bonding Evolon  fabric before deionization (DI) water rinse with rinsing after ion concentration
Before the ion DI rinsing after (ppb) DI rinsing (ppb)
Na??????150,700????????2567 Li??????＜1????????????＜1 NH 4????＜1????????????＜1 K???????＜1????????????＜1 Mg??????＜1????????????＜1 Ca??????21,333?????????4707 Fl??????＜1????????????273 Cl??????81,200?????????1347 NO 4????21,933?????????＜1 PO 4????＜1????????????760 SO 4????37,096?????????1407
Result in the table 2 shows Li, NH 4, K and Mg ion concentration do not change and PO 4Increase with the ion concentration of Fl.As mentioned above, PO 4Increase may derive from the gloves that the people that carries out fabric test wears.This can reduce or eliminate by using nalgeen pincers operation fabric or allowing the people that tests wear another kind of gloves.Yet table 2 shows Na, Ca, Cl, NO 4And SO 4Ion concentration all significantly reduce.Similarly, these results have also shown and have spent the deionised water nonwoven fabric to remove the validity of the ion in the nonwoven fabric, eliminate thus or have reduced at least expensive and the needs that wash in cleanroom laundry consuming time.Particularly, fabric of the present invention after with rinsed with deionized water, every kind of ion shown in the his-and-hers watches 2 all reached be lower than about 10, the low ion concentration of 000ppb.More preferably, fabric of the present invention after with rinsed with deionized water, every kind of ion shown in the his-and-hers watches 2 all reached be lower than about 5, the ion concentration of 000ppb.
Rinse fabric also can be used for weaving or knit goods with the method for minimizing or removal ion concentration in deionized water, and this also is considered within the scope of the invention.Rinsed with deionized water may be carried out in a process of separating with weaving or knitting machine, because these fabric manufacture processes manufacturing planning commonly used needs a large amount of symmetric arrays machine together usually, and water is not the major part of these fabric production process usually.
In addition, fabric of the present invention can be incorporated in the composite, and this composite constitutes by one or more layers deionized fabric may and one or more layers polymer film are laminated together like this.Nonwoven, weaving and knit goods also can be used as the part of composite.These composites also have the final use of product that is used for the graphite composite laminates and so on of space shuttle at aircraft industry, polluting in this series products is the main factor of considering, because the pollutant in this environment can and catch fire or explode with the liquid oxygen reaction.
Foregoing description and embodiment disclose the nonwoven fabric of the present invention with low ion concentration and the manufacture method of this nonwoven fabric.After the nonwoven production process, preferably in process of production, rinsing nonwoven fabric in deionized water obtains low ion concentration thus.Advantageously, need not to use the dustless washing that can increase production process cost, complexity and time loss usually just can realize above-mentioned purpose.In addition, this method can be used to make the nonwoven fabric that aesthetic property and/or operating characteristic improve to some extent with other chemistry or mechanical means.Therefore, the invention provides the purposes for the expansion of toilet, surface coated operation and medical science, dentist and animal doctor's industry, fabric of the present invention like this can be incorporated into rag, protective clothing, sterile drape, coverlet, curtain cover, bandage and any other and need make in the goods of the final products with low ion concentration.
Those of ordinary skill in the art can deviate under the situation of the spirit and scope of the present invention, puts into practice these and other modification of the present invention and change.In addition, those of ordinary skills will appreciate that aforementioned description as just example, rather than in order to limit the scope of describing in the claims of the present invention.

Claims (59)

1. method that the nonwoven fabric with low ion concentration is provided, wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 10 that the ion on the fabric is less than, 000ppb, and this method comprises the following steps:
(a) provide nonwoven fabric;
(b) randomly, nonwoven fabric is carried out the air impingement surface treatment;
(c) randomly, nonwoven surface is coated with a kind of chemical reagent;
(d) use the rinsed with deionized water nonwoven fabric; With
(e) with the nonwoven fabric drying.
2. the method for claim 1 is wherein used the rinsed with deionized water nonwoven fabric in the nonwoven production process.
3. the method for claim 1, wherein nonwoven fabric is made of fiber, and wherein this fiber is selected from single homofil, multicomponent fibre and their combination.
4. method as claimed in claim 3, wherein nonwoven fabric is made of fiber, and wherein this fiber is characterised in that fiber size is less than 5 dawn.
5. method as claimed in claim 3, wherein nonwoven fabric is made of fiber, and wherein this fiber is a multicomponent fibre, and wherein this multicomponent fibre can be split into the one-component fiber along its length direction by machinery or chemical action.
6. method as claimed in claim 5, wherein multicomponent fibre can be split into the one-component fiber along its length direction by machinery or chemical action, and wherein the one-component fiber is characterised in that fiber size is less than 1 dawn.
7. method as claimed in claim 3, wherein nonwoven fabric is to be made of the fiber that is selected from polyester, polyamide, polyolefin, Nomex, polyurethane, PLA and their composition.
8. method as claimed in claim 7, wherein nonwoven fabric is made of fiber, and wherein fiber is a polyester, and wherein polyester is selected from polyethylene terephthalate, poly terephthalic acid benzophenanthrene ester, polybutylene terephthalate (PBT) and their combination.
9. method as claimed in claim 7, wherein nonwoven fabric is made of fiber, and wherein fiber is a polyamide, and wherein polyamide is selected from nylon 6 and nylon 6,6 and their combination.
10. method as claimed in claim 7, wherein nonwoven fabric is made of fiber, and wherein fiber is a polyolefin, and wherein polyolefin is selected from polypropylene, polyethylene and their combination.
11. the product of the method for claim 1.
12. the method that the nonwoven fabric with low ion concentration is provided, wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 5 that the ion on the fabric is less than, 000ppb, and this method comprises the following steps:
(a) provide nonwoven fabric;
(b) randomly, nonwoven fabric is carried out the air impingement surface treatment;
(c) randomly, nonwoven surface is coated with a kind of chemical reagent;
(d) use the rinsed with deionized water nonwoven fabric; With
(e) with the nonwoven fabric drying.
13. the product of method as claimed in claim 12.
14. the method that the spun-bonded non-woven fabrics that has low ion concentration and be made of continuous multicomponent fibre is provided, multicomponent fibre wherein is split into the one-component fiber along its length direction to small part, and wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 10 that the ion on the fabric is less than, 000ppb, and this method comprises the following steps:
(a) provide the spun-bonded non-woven fabrics that constitutes by the continuous multicomponent fibre that is split into the one-component fiber along its length direction to small part;
(b) randomly, this spun-bonded non-woven fabrics is carried out the air impingement surface treatment;
(c) randomly, to a kind of chemical reagent of this spun-bonded non-woven fabrics surface coated;
(d) with this spun-bonded non-woven fabrics of rinsed with deionized water; With
(e) with this spun-bonded non-woven fabrics drying.
15. method as claimed in claim 14, wherein in this spun-bonded non-woven fabrics production process with this spun-bonded non-woven fabrics of rinsed with deionized water.
16. method as claimed in claim 14, when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 5 that the ion on the fabric is less than, 000ppb.
17. method as claimed in claim 14, wherein multicomponent fibre is characterised in that fiber size is less than 5 dawn continuously.
18. method as claimed in claim 14, wherein the one-component fiber is characterised in that fiber size is less than 1 dawn.
19. method as claimed in claim 14, wherein spun-bonded non-woven fabrics is made of fiber, and wherein this fiber is selected from polyester, polyamide, polyolefin, Nomex, polyurethane, PLA and their composition.
20. method as claimed in claim 19, wherein spun-bonded non-woven fabrics is made of polyolefin, and wherein polyolefin is selected from polypropylene, polyethylene and their combination.
21. method as claimed in claim 19, wherein spun-bonded non-woven fabrics is made of polyester, and wherein polyester is selected from polyethylene terephthalate, poly terephthalic acid benzophenanthrene ester, polybutylene terephthalate (PBT) and their combination.
22. method as claimed in claim 19, wherein spun-bonded non-woven fabrics is made of polyamide, and wherein polyamide is selected from nylon 6, nylon 6,6 and their combination.
23. method as claimed in claim 22, wherein spun-bonded non-woven fabrics is to be made of polyester and nylon 6,6.
24. method as claimed in claim 23, wherein spun-bonded non-woven fabrics is to be made of polyester and nylon 6,6, and wherein polyester accounts for the about 65% of spun-bonded non-woven fabrics, and wherein nylon 6,6 accounts for about 35% of spun-bonded non-woven fabrics.
25. the product of method as claimed in claim 14.
26. the nonwoven fabric with low ion concentration, wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 10 that the ion on this fabric is less than, 000ppb.
27. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is made of continuous fiber, and wherein this fiber is selected from single homofil, multicomponent fibre and their combination.
28. nonwoven fabric as claimed in claim 27, wherein this fiber is characterised in that fiber size is less than 5 dawn.
29. nonwoven fabric as claimed in claim 27, wherein this fiber is a multicomponent fibre, and wherein this multicomponent fibre can be split into the one-component fiber along its length direction by machinery or chemical action.
30. nonwoven fabric as claimed in claim 29, wherein the one-component fiber is characterised in that fiber size is less than 1 dawn.
31. nonwoven fabric as claimed in claim 27, wherein this nonwoven fabric is to be made of the fiber that is selected from polyester, polyamide, polyolefin, Nomex, polyurethane, PLA and their composition.
32. nonwoven fabric as claimed in claim 31, wherein fiber is a polyester, and wherein polyester is selected from polyethylene terephthalate, poly terephthalic acid benzophenanthrene ester, polybutylene terephthalate (PBT) and their combination.
33. nonwoven fabric as claimed in claim 31, wherein fiber is a polyamide, and wherein polyamide is selected from nylon 6, nylon 6,6 and their combination.
34. nonwoven fabric as claimed in claim 31, wherein fiber is a polyolefin, and wherein polyolefin is selected from polypropylene, polyethylene and their combination.
35. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached in the composite, and wherein one or more layers nonwoven fabric and one or more layers polymer film are laminated together.
36. nonwoven fabric as claimed in claim 35, wherein this composite further comprises one or more layers weaving or knit goods.
37. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached to a kind of goods that are used for toilet's Application Areas.
38. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached to a kind of goods that the surface coated operation is used that are used for.
39. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached to a kind of goods that hospital operating room is used that are used for.
40. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached to a kind of goods that dentist's office is used that are used for.
41. nonwoven fabric as claimed in claim 26, wherein this nonwoven fabric is attached to the goods that a kind of animal doctor's of being used for operating room is used.
42. the nonwoven fabric with low ion concentration, wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 5 that the ion on this fabric is less than, 000ppb.
43. a spun-bonded non-woven fabrics that has low ion concentration and be made of continuous multicomponent fibre, multicomponent fibre wherein is split into the one-component fiber along its length direction to small part, and wherein said ion is selected from Na, Li, NH 4, K, Mg, Ca, Fl, Cl, NO 4, PO 4And SO 4, and when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 10 that the ion on the fabric is less than, 000ppb.
44. spun-bonded non-woven fabrics as claimed in claim 43, when wherein testing according to method of testing IEST-RP-CC-004 § 6.1.2, it is about 5 that the ion on the fabric is less than, 000ppb.
45. spun-bonded non-woven fabrics as claimed in claim 43, wherein multicomponent fibre is characterised in that fiber size is less than 5 dawn.
46. spun-bonded non-woven fabrics as claimed in claim 43, wherein the one-component fiber is characterised in that fiber size is less than 1 dawn.
47. spun-bonded non-woven fabrics as claimed in claim 43, wherein spun-bonded non-woven fabrics is to be made of the fiber that is selected from polyester, polyamide, polyolefin, Nomex, polyurethane, PLA and their composition.
48. spun-bonded non-woven fabrics as claimed in claim 47, wherein fiber is a polyolefin, and wherein polyolefin is selected from polypropylene, polyethylene and their combination.
49. spun-bonded non-woven fabrics as claimed in claim 47, wherein fiber is a polyester, and wherein polyester is selected from polyethylene terephthalate, poly terephthalic acid benzophenanthrene ester, polybutylene terephthalate (PBT) and their combination.
50. spun-bonded non-woven fabrics as claimed in claim 47, wherein fiber is a polyamide, and wherein polyamide is selected from nylon 6, nylon 6,6 and their combination.
51. spun-bonded non-woven fabrics as claimed in claim 50, wherein spun-bonded non-woven fabrics is to be made of polyester and nylon 6,6.
52. spun-bonded non-woven fabrics as claimed in claim 51, wherein spun-bonded non-woven fabrics is to be made of polyester and nylon 6,6, and wherein polyester accounts for the about 65% of spun-bonded non-woven fabrics, and wherein nylon 6,6 accounts for about 35% of spun-bonded non-woven fabrics.
53. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached in the composite, and wherein one or more layers spun-bonded non-woven fabrics and one or more layers polymer film are laminated together.
54. spun-bonded non-woven fabrics as claimed in claim 53, wherein this composite further comprises one or more layers weaving or knit goods.
55. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached to a kind of goods that are used for toilet's Application Areas.
56. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached to a kind of goods that the surface coated operation is used that are used for.
57. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached to a kind of goods that hospital operating room is used that are used for.
58. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached to a kind of goods that dentist's office is used that are used for.
59. spun-bonded non-woven fabrics as claimed in claim 43, wherein this spun-bonded non-woven fabrics is attached to the goods that a kind of animal doctor's of being used for operating room is used.
CNA038071223A 2002-03-28 2003-03-19 Nonwoven fabric having low ion content and method for producing the same Pending CN1643202A (en)

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