CN101580998A - Antistatic, conductive and electromagnetic shielding textile and preparation method thereof - Google Patents
Antistatic, conductive and electromagnetic shielding textile and preparation method thereof Download PDFInfo
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- CN101580998A CN101580998A CNA2009100995339A CN200910099533A CN101580998A CN 101580998 A CN101580998 A CN 101580998A CN A2009100995339 A CNA2009100995339 A CN A2009100995339A CN 200910099533 A CN200910099533 A CN 200910099533A CN 101580998 A CN101580998 A CN 101580998A
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Abstract
The invention relates to an antistatic, conductive and electromagnetic shielding textile and a preparation method thereof, being characterized in that fiber filament is firstly processed by electroless plating copper in a way of continuous proceeding and then processed by electrolytic tinning to prepare conductive filament; then, the conductive filament is cut into conductive short fiber which is processed by pure spinning or blend spinning with other common textile fibers to be made into yarn, and the antistatic, conductive and electromagnetic shielding textile can be prepared by fabric manufacture as well as dyeing and finishing; or the conductive short fiber is blended with other common textile fibers and then processed into non-weaving cloth by pinprick or spunlace. The textile prepared by the invention has beautiful appearance and soft feel, and is safe to the skin.
Description
Technical field
The present invention relates to a kind of antistatic, conduction and electromagnetic screen textile and preparation method thereof, belong to the functional textile technical field.
Background technology
Clothes produces static and bring inconvenience can for people's life, at some special occasions even bring potential safety hazard; The universal use of electrical equipment such as mobile phone, household electrical appliances, computer, having caused widely, electromagnetic wave pollutes.Therefore, antistatic, conduction and electromagnetic screen textile have vast market.At present, the method for antistatic, conduction of preparation and electromagnetic screen textile mainly contains: (1) is with metal fibre blending processing; (2) fabric is directly with vacuum plating, plating or chemical plating processing.The former not folding of metal fibre is folded, wiriness; Latter's appearance of fabrics is not good enough, can not satisfy and take requirement.And, though fabric has higher effectiveness after vacuum plating, plating or chemical plating, but anatomize its fabric as can be known, the coat of metal only is covered in fabric face, each root monofilament of organizine and tram inside does not have whole metal plating layers, so fabric directly will further improve effectiveness with vacuum plating, plating or chemical plating processing and is subjected to certain restriction.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, providing a kind of directly carries out chemical plating and electroplates processing long filament, guarantee all even metal lining of each root monofilament in the tow, the electrically conductive filament that makes cuts into the conduction short fiber, through pure spin or with other general textile fabric blending resultant yarn, again through weave, that dyeing and finishing is processed into is antistatic, conduction and electromagnetic screen textile and preparation method thereof; The short fiber that perhaps conducts electricity mixes with other general textile fabric, and acupuncture or water thorn is processed into antistatic, the conduction of non-weaving cloth and electromagnetic screen textile and preparation method thereof.
The objective of the invention is to finish by following technical solution, it is fiber filament to be carried out electroless copper re-plating tin with the mode of advancing continuously prepare electrically conductive filament, then electrically conductive filament is cut into the conduction short fiber, the short fiber that will conduct electricity is pure spin or with other general textile fabric blending processing resultant yarn, be processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing, the short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn then.
The present invention mainly includes following concrete steps:
The first step, selection polyester or polyamide or acrylic fibers or polyvinyl long filament clean except that degreaser and dirt with detergent solution.
Second step, fiber filament marshalling are wound into axle.
The 3rd step, fiber filament activation, the mode that activating solution is padded in employing forms the resin bed that one deck contains noble metal on the fiber filament surface, activating solution is nano particle, polyvinyl alcohol or polypyrrole alkane ketone, polyurethane or the polyacrylate that contains argent or palladium, the dispersion of surfactant, the activating solution solid content is 1～10%, the activating solution temperature is 10～60 ℃, pick-up 40～120% is used oven drying, and baking temperature is 100～200 ℃.
The preparation of activating solution is earlier precious metal salt, polyvinyl alcohol or polypyrrole alkane ketone, polyurethane or polyacrylate, surfactant to be made into mixed aqueous solution, adds the reductant aqueous solution then and makes precious metal ion be reduced into atomic state and be scattered in the solution with the form stable of nano particle.Precious metal salt is selected from silver nitrate, silver acetate, palladium bichloride, palladium nitrate, palladium sulfate.Reductant is selected from formaldehyde, glucose, tartrate, hydrazine, sodium hypophosphite, alkylamine borine, borohydride salts.Surfactant is selected from JFC, paregal O, TX-10, Pan of department series, tween series, sodium alkyl benzene sulfonate.
The 4th step, electroless copper, copper facing thickness 0.1～15 μ m, electroless copper is selected two kinds of schemes, and the one, be reductant with the sodium hypophosphite, pH7～10,20～70 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the plating bath:
Copper sulphate 5～50g/L
Nickelous sulfate 0.1～5g/L
Citric acid 5～50g/L
Boric acid 5～50g/L
Sodium hypophosphite 10～50g/L
Thiocarbamide or 2-mercaptobenzothiazole 0.1～50mg/L,
The 2nd, be reductant with formaldehyde, pH10～13,10～60 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the copper electrolyte:
Copper sulphate 5～50g/L
Sodium potassium tartrate tetrahydrate 10～100g/L
EDTA 10～100g/L
NaOH or sodium carbonate 2～40g/L
Formaldehyde (37～40%) 10～50g/L
α, α '-bipyridyl or 2-mercaptobenzothiazole 0.1～50mg/L,
The 5th step, electrotinning, zinc-plated thickness 0.1～4 μ m, electrotinning is selected two kinds of schemes, the one, stannous sulfate plating bath, cathode current 0.2～5A/dm
2, acidic bath, pH0～6,10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous sulfate 10～120g/L
Sulfuric acid 50～200mL/L
Betanaphthol 0～3mL/L
Stabilizing agent 15～25g/L
Brightener 5～30g/L
Gelatin 0～5g/L
Wherein stabilizing agent, brightener are the commercial goods.
The 2nd, stannous methanesulfonate plating bath, cathode current 0.2～15A/dm
2, 10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous methanesulfonate 50～220g/L
Pyrovinic acid 50～250g/L
Brightener 10～50g/L
Wherein brightener is the commercial goods.
The 6th step, armor coated, oven dry, protective layer is selected polyurethane, polyacrylate, butyronitrile resin or butadiene styrene resin;
The 7th step, electrically conductive filament cut into the conduction short fiber;
The 8th the step, the short fiber that will conduct electricity pure spin or with other general textile fabric blending resultant yarn, for the preparation antistatic textile, the content of conduction short fiber is 1～10%, for preparation conduction and electromagnetic screen textile, the content of conduction short fiber is 10～100%, is processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing then; The short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn, and the content of conduction short fiber is 1%～100%.
In order to guarantee to produce expeditiously, long filament of the present invention adopts continuously the mode of advancing to carry out chemical plating and electroplates processing, and promptly fiber is fitly arranged and is wound into axle, and strand moves back and separates successively by each dipping tanks such as activation, chemical plating, plating then.Existing chemical plating process, fiber need operations such as alligatoring, sensitization, activation, and technical process is long, and is wayward.The present invention adopts unique activating solution one-step method that contains noble metal of padding, and operation is simple, and the follow-up coat of metal combines the fastness height with fiber.Because copper has good electrical conductivity, price is relatively low, and tin has argenteous outward appearance, and is corrosion-resistant, anti-variable color, and ductility is good, and is particularly nontoxic to human body, so the present invention selects the process route of first electroless copper re-plating tin.The textile touch of the present invention's processing is good, and appearance effect is good, can reach very high effectiveness.
The specific embodiment
The invention will be further described below in conjunction with concrete example, but not as restriction.
The present invention earlier to fiber filament with the mode of advancing is carried out electroless copper continuously, re-plating tin prepares electrically conductive filament, then electrically conductive filament is cut into the conduction short fiber, the short fiber that will conduct electricity is pure spin or with other general textile fabric blending processing resultant yarn, be processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing; The short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn then.
The present invention mainly comprises following concrete steps:
The first step, fiber filament clean degreaser;
Second step, fiber filament marshalling are wound into axle;
The 3rd step, fiber filament activation adopt the mode of padding activating solution to form the resin bed that one deck contains noble metal on the fiber filament surface, use oven drying;
The 4th step, electroless copper, copper facing thickness 0.1～15 μ m;
The 5th step, electrotinning, zinc-plated thickness 0.1～4 μ m;
The 6th step, armor coated, oven dry;
The 7th step, electrically conductive filament cut into the conduction short fiber;
The 8th the step, the short fiber that will conduct electricity pure spin or with other general textile fabric blending resultant yarn, for the preparation antistatic textile, the content of conduction short fiber is 1～10%, for preparation conduction and electromagnetic screen textile, the content of conduction short fiber is 10～100%, is processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing then; The short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn, and the content of conduction short fiber is 1%～100%.
The used fiber filament of the described first step is polyester or polyamide or acrylic fibers or polyvinyl alcohol fibre long filament.
Described the 3rd step is used activating solution, this activating solution is nano particle, polyvinyl alcohol or polypyrrole alkane ketone, polyurethane or the polyacrylate that contains argent or palladium, the dispersion of surfactant, the activating solution solid content that uses is 1～10%, the activating solution temperature is 10～60 ℃, pick-up 40～120%, baking temperature are 100～200 ℃.
Described the 4th step electroless copper is reductant with the sodium hypophosphite, pH7～10,20～70 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the plating bath:
Copper sulphate 5～50g/L
Nickelous sulfate 0.1～5g/L
Citric acid 5～50g/L
Boric acid 5～50g/L
Sodium hypophosphite 10～50g/L
Thiocarbamide or 2-mercaptobenzothiazole 0.1～50mg/L.
Described the 4th step electroless copper is reductant with formaldehyde, pH10～13,10～60 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the copper electrolyte:
Copper sulphate 5～50g/L
Sodium potassium tartrate tetrahydrate 10～100g/L
EDTA 10～100g/L
NaOH or sodium carbonate 2～40g/L
Formaldehyde 10～50g/L of 37～40%
α, α '-bipyridyl or 2-mercaptobenzothiazole 0.1～50mg/L.
Described the 5th step electrotinning adopts tin anode, cathode current 0.2～5A/dm
2, acidic bath, pH0～6,10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous sulfate 10～120g/L
Sulfuric acid 50～200mL/L
Betanaphthol 0～3mL/L
Stabilizing agent 15～25g/L
Brightener 5～30g/L
Gelatin 0～5g/L.
Described the 5th step electrotinning adopts tin anode, cathode current 0.2～15A/dm
2, 10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous methanesulfonate 50～220g/L
Pyrovinic acid 50～250g/L
Brightener 10～50g/L.
Embodiment 1
The first step, selection nylon 66 long filaments clean except that degreaser and dirt with detergent solution;
Second step, fiber filament marshalling are wound into axle;
The 3rd step, fiber filament activation, the mode that activating solution is padded in employing forms the resin bed that one deck contains noble metal on the fiber filament surface, activating solution is the dispersion that contains 0.2% silver nano-grain, 0.3% polypyrrole alkane ketone, 3% polyurethane, 0.01%JFC, the activating solution temperature is 30 ℃, pick-up 70%, use oven drying, baking temperature is 170 ℃, 10 minutes drying times;
The 4th step, electroless copper are reductant with the sodium hypophosphite, pH9,65 ℃ of bath temperatures, 5 minutes immersion plating time, contain in the plating bath:
Copper sulphate 10g/L
Nickelous sulfate 0.5g/L
Citric acid 20g/L
Boric acid 30g/L
Sodium hypophosphite 30g/L
Thiocarbamide 0.2mg/L
The 5th step, electrotinning adopt the high purity tin anode, cathode current 2A/dm
2, acidic bath, pH4,30 ℃ of bath temperatures, 6 minutes immersion plating time, contain in the plating bath:
Stannous sulfate 50g/L
Sulfuric acid 80mL/L
Betanaphthol 0.3mL/L
Stabilizing agent NSR-8405 12g/L
Brightener SS-920 15g/L
Gelatin 3g/L
The 6th step, coating aqueous polyurethane protective layer, oven dry;
The 7th step, long filament cut into the 51mm staple fibre;
32 count yarns are made in the 8th step, conduction short fiber 35%, cotton 65% blending;
The 9th goes on foot, weaves with dyeing and finishing and be processed into Electromagnetically shielding fabrics.
The Electromagnetically shielding fabrics that makes after tested, in 10MHz～3GHz scope, electromagnet shield effect is greater than 30dB.
Embodiment 2
The first step, selection acrylic filaments clean except that degreaser and dirt with detergent solution;
Second step to the 7th step is with example 3;
48 count yarns are made in the 8th step, conduction short fiber 5%, terylene 35%, wool 60% blending;
The 9th goes on foot, weaves with dyeing and finishing and be processed into the permanence antistatic fabric.
The anti-static fabric that makes after tested, static voltage half life is 1.8 seconds.
Embodiment 3
The first step, selection polyester filament clean except that degreaser and dirt with cleaning agent and aqueous slkali;
Second step, fiber filament marshalling are wound into axle;
The 3rd step, fiber filament activation, the mode that activating solution is padded in employing forms the resin bed that one deck contains noble metal on the fiber filament surface, activating solution is the dispersion that contains 0.2% palladium nano-particles, 0.3% polyvinyl alcohol, 2.5% acrylate, 0.01%JFC, the activating solution temperature is 40 ℃, pick-up 65%, use oven drying, baking temperature is 190 ℃, 6 minutes drying times;
The 4th step, electroless copper are reductant with formaldehyde, pH12.5,45 ℃ of bath temperatures, 2 minutes immersion plating time, contain in the copper electrolyte:
Copper sulphate 15g/L
Sodium potassium tartrate tetrahydrate 15g/L
EDTA 25g/L
NaOH 25g/L
Formaldehyde (37～40%) 15g/L
α, α '-bipyridyl 15mg/L
The 5th step, electrotinning adopt the high purity tin anode, cathode current 2A/dm
2, 30 ℃ of bath temperatures, 5 minutes immersion plating time, contain in the plating bath:
Stannous methanesulfonate 110g/L
Pyrovinic acid 130g/L
Brightener 35g/L
The 6th step, coating aqueous polyurethane protective layer, oven dry;
The 7th step, long filament cut into the 51mm staple fibre;
48 count yarns are made in the 8th step, conduction short fiber 35%, wool 65% blending;
The 9th goes on foot, weaves with dyeing and finishing and be processed into Electromagnetically shielding fabrics.
The Electromagnetically shielding fabrics that makes after tested, in 10MHz～3GHz scope, electromagnet shield effect is greater than 30dB.
Embodiment 4
Seven steps of the first step to the are with example 3;
The 8th step, pure 32 count yarns that are spun into of conduction short fiber;
The 9th goes on foot, weaves and be processed into conduction and Electromagnetically shielding fabrics.
Conduction that makes and Electromagnetically shielding fabrics after tested, sheet resistance is 0.03/, in 10MHz～3GHz scope, electromagnet shield effect is greater than 93dB.
Embodiment 5
Seven steps of the first step to the are with example 3;
The 8th step, conduction short fiber 40%, short rayon fiber 60% mix, and are processed into the electromagnetic shielding non-weaving cloth through acupuncture.
The electromagnetic shielding non-weaving cloth that makes after tested, in 10MHz～3GHz scope, electromagnet shield effect is greater than 45dB.
Embodiment 6
Seven steps of the first step to the are with example 3;
The 8th step, conduction short fiber are processed into conduction and electromagnetic shielding non-weaving cloth through the water thorn.
The electromagnetic shielding non-weaving cloth that makes after tested, in 10MHz～3GHz scope, electromagnet shield effect is greater than 95dB.
Claims (8)
1, a kind of antistatic, conduction and electromagnetic screen textile and preparation method thereof, it is characterized in that: earlier to fiber filament with the mode of advancing is carried out electroless copper continuously, re-plating tin prepares electrically conductive filament, then electrically conductive filament is cut into the conduction short fiber, the short fiber that will conduct electricity is pure spin or with other general textile fabric blending processing resultant yarn, be processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing; The short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn then.
2, antistatic, conduction according to claim 1 and electromagnetic screen textile and preparation method thereof, it is characterized in that: it comprises following concrete steps:
The first step, fiber filament clean degreaser;
Second step, fiber filament marshalling are wound into axle;
The 3rd step, fiber filament activation adopt the mode of padding activating solution to form the resin bed that one deck contains noble metal on the fiber filament surface, use oven drying;
The 4th step, electroless copper, copper facing thickness 0.1～15 μ m;
The 5th step, electrotinning, zinc-plated thickness 0.1～4 μ m;
The 6th step, armor coated, oven dry;
The 7th step, electrically conductive filament cut into the conduction short fiber;
The 8th the step, the short fiber that will conduct electricity pure spin or with other general textile fabric blending resultant yarn, for the preparation antistatic textile, the content of conduction short fiber is 1～10%, for preparation conduction and electromagnetic screen textile, the content of conduction short fiber is 10～100%, is processed into antistatic, conduction and electromagnetic screen textile through weaving with dyeing and finishing then; The short fiber that perhaps will conduct electricity mixes with other general textile fabric, is processed into non-weaving cloth through acupuncture or water thorn, and the content of conduction short fiber is 1%～100%.
3, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof, it is characterized in that: the used fiber filament of the described first step is polyester or polyamide or acrylic fibers or polyvinyl alcohol fibre long filament.
4, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof, it is characterized in that: the 3rd step was used activating solution, this activating solution is nano particle, polyvinyl alcohol or polypyrrole alkane ketone, polyurethane or the polyacrylate that contains argent or palladium, the dispersion of surfactant, the activating solution solid content that uses is 1～10%, the activating solution temperature is 10～60 ℃, pick-up 40～120%, baking temperature are 100～200 ℃.
5, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof, it is characterized in that: the 4th step electroless copper is reductant with the sodium hypophosphite, pH7～10,20～70 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the plating bath:
Copper sulphate 5～50g/L
Nickelous sulfate 0.1～5g/L
Citric acid 5～50g/L
Boric acid 5～50g/L
Sodium hypophosphite 10～50g/L
Thiocarbamide or 2-mercaptobenzothiazole 0.1～50mg/L.
6, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof, it is characterized in that: the 4th step electroless copper is reductant with formaldehyde, pH10～13,10～60 ℃ of bath temperatures, 15 seconds～1 hour immersion plating time, contain in the copper electrolyte:
Copper sulphate 5～50g/L
Sodium potassium tartrate tetrahydrate 10～100g/L
EDTA 10～100g/L
NaOH or sodium carbonate 2～40g/L
Formaldehyde 10～50g/L of 37～40%
α, α '-bipyridyl or 2-mercaptobenzothiazole 0.1～50mg/L.
7, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof is characterized in that: the 5th step electrotinning adopts tin anode, cathode current 0.2～5A/dm
2, acidic bath, pH0～6,10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous sulfate 10～120g/L
Sulfuric acid 50～200mL/L
Betanaphthol 0～3mL/L
Stabilizing agent 15～25g/L
Brightener 5～30g/L
Gelatin 0～5g/L.
8, antistatic, conduction according to claim 2 and electromagnetic screen textile and preparation method thereof is characterized in that: the 5th step electrotinning adopts tin anode, cathode current 0.2～15A/dm
2, 10～50 ℃ of bath temperatures, 10 seconds～1 hour immersion plating time, contain in the plating bath:
Stannous methanesulfonate 50～220g/L
Pyrovinic acid 50～250g/L
Brightener 10～50g/L.
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