CN1978670A - Antistatic leather and its preparing method - Google Patents
Antistatic leather and its preparing method Download PDFInfo
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- CN1978670A CN1978670A CN 200610104967 CN200610104967A CN1978670A CN 1978670 A CN1978670 A CN 1978670A CN 200610104967 CN200610104967 CN 200610104967 CN 200610104967 A CN200610104967 A CN 200610104967A CN 1978670 A CN1978670 A CN 1978670A
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Abstract
The invention relates to antistatic leather and preparing method. The leather material includes main body covered by a layer of conductive film coating which can increase surface conductance. In addition, it contains a lot of electron, ionogenic groups which can conduct electricity under the action of the electric filed. These two mechanisms can act at the same time to realize antistatic.
Description
Technical field
The present invention relates to a kind of leather, particularly a kind of antistatic leather and preparation method thereof.
Background technology
Leather is a kind of human knowledge, uses natural macromolecular material early, and main component is collegen filament, and leather substance has the following advantages: easily machine-shaping can be processed to that a width of cloth is big, the uniform all kinds of finished products of thickness; Have characteristics such as soft, corrosion-resistant, low density, snappiness, heat-resisting, low price.Just because of these advantages, for it is widely used in daily life and the industrial and agricultural production aspect condition of providing convenience.
The electrostatic breakdown problem is troubling microelectronics and LCD industry always.So-called electrostatic breakdown problem is meant that a large amount of static that produce aborning can't discharge, and just can cause the electrostatic breakdown of device when its voltage acquires a certain degree, and influences the product good article rate.For example, operations such as the necessary friction orientation of liquid-crystal display, glass cutting, ground glass, inclined to one side subsides all can produce a large amount of static charges, and glass substrate is an insulating, these static charges can't discharge, when acquiring a certain degree, its voltage just can cause the electrostatic breakdown of LCD screen, defective products, particularly thin film transistor (TFT) appears.For head it off, people use the resilient rubbber cushion between glass substrate and the table top instead conductive rubber material, but because specific conductivity is also too big, effect is also not ideal.The dust that produces at leather processing procedure (as operations such as buffings) is adsorbed by leather substance in addition, thereby influences the adhesion of coating.Leather substance in use produces static owing to reasons such as frictions, also can adsorb pollutents such as dust, influences the attractive in appearance and sanitation performance of leather.
Summary of the invention
Antistatic leather that the invention provides a kind of lightweight, high absorb, area is big, price is low, physical strength is high and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is: at first raw hide is placed rotary drum to soak 6～24 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 1.0～2.0, and the concentration that makes sodium sulphite is 5～10 grams per liters, continuation is rotated 1.5～2 hours in rotary drum after, the mass concentration that adds raw hide weight 3.5～4.5% again is 30% sodium hydroxide, is rotated further 1 hour, then washing, deliming, softening; Secondly the regulator solution ratio is to 0.5～1.5, the salt that adds raw hide weight 10～15% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.0～1.5% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 1～2% is that 37% acetic acid rotated 0.5～1.5 hour then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 3～6 hours, the regulator solution ratio is to 1.0～1.5, add the sodium bicarbonate of raw hide weight 1～2% and 1% sodium-acetate again, rotated 1～3 hour, after making the pH value reach 5.0～5.5, washing, the regulator solution ratio is to 1.0～1.5, when being warmed to 50～65 ℃, the matching stain that adds raw hide weight 1～2%, rotated 40 minutes, the leather fat that adds raw hide weight 8～15% again, rotated 50 minutes, the formic acid that adds raw hide weight 0.5～1.5% at last, make after the pH value of solution reaches 3.5～4.0 in the rotary drum, wash out drum, standing over night, vacuum-drying, adopt plumbous film or the aluminium film of the method plating thickness 200～400nm of vacuum evaporation, then, in vacuum tightness is that the temperature with 50～65 ℃ spread metal 6 hours in the vacuum oven of 10-2 holder in leather, injects silver or aluminum ion by flesh side of a belt in leather; Be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.
Matching stain of the present invention is leather black or leather; Leather fat is fullness imparting fish oil, lanolin fatting agent, synthetic fat liquor or modified vegetable oil fatting agent.
According to the antistatic leather that preparation method of the present invention makes, comprise the leather body, be coated with the layer of conductive film coating at the outside surface of leather body; The thickness of conductive film coating is the polyaniline electrically conducting transparent macromolecular material of micron number magnitude.
The present invention is coated with the conductive film coating of good conductivity at the leather body surface, has improved the surface conductance of leather substance; And contain conductive mechanism such as a large amount of electronics, ionic group in the leather, when electric field action during in leather substance, charged ion can be crossed over potential barrier, produces electric action; More than two kinds of mechanisms can have an effect simultaneously, reach anlistatig purpose.
Description of drawings
Fig. 1 is a patent leather substance structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, at first raw hide is placed rotary drum immersion 6 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 1.0, and the concentration that makes sodium sulphite is 10 grams per liters, continuation is rotated 1.5 hours in rotary drum after, the mass concentration that adds raw hide weight 3.5% again is 30% sodium hydroxide, is rotated further 1 hour, then washing, deliming, softening; Secondly the regulator solution ratio is to 0.5, the salt that adds raw hide weight 12% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.0% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 1% is that 37% acetic acid rotated 0.5 hour then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 3 hours, the regulator solution ratio is to 1.3, add the sodium bicarbonate of raw hide weight 2% and 1% sodium-acetate again, rotated 1 hour, after making the pH value reach 5.0, washing, the regulator solution ratio is to 1.3, when being warmed to 50 ℃, the leather black that adds raw hide weight 2%, rotated 40 minutes, the fullness imparting fish oil that adds raw hide weight 8% again, rotated 50 minutes, the formic acid that adds raw hide weight 0.5% at last makes after the pH value of solution reaches 3.5 in the rotary drum, washes out drum, standing over night, vacuum-drying, the plumbous film of the method plating thickness 200nm of employing vacuum evaporation, then, in vacuum tightness is that the temperature with 65 ℃ spread metal 6 hours in the vacuum oven of 10-2 holder in leather, injects silver ions by flesh side of a belt in leather; Be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.Referring to Fig. 1, the present invention includes leather body 2, be coated with the conductive film coating 1 that a layer thickness is the polyaniline electrically conducting transparent macromolecular material of micron number magnitude at the outside surface of leather body 2.
Embodiment 2: at first raw hide is placed rotary drum immersion 12 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 2.0, the concentration that makes sodium sulphite is 5 grams per liters, continues to rotate after 1.8 hours in rotary drum, and the mass concentration that adds raw hide weight 3.8% again is 30% sodium hydroxide, be rotated further 1 hour, washing then, deliming, softening; Secondly the regulator solution ratio is to 1.0, the salt that adds raw hide weight 14% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.2% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 1.6% is that 37% acetic acid rotated 1.5 hours then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 5 hours, regulator solution adds the sodium bicarbonate of raw hide weight 1.6% and 1% sodium-acetate again than to 1.5, rotates 3 hours, after making the pH value reach 5.2, washing, the regulator solution ratio is to 1.4, when being warmed to 65 ℃, the leather that adds raw hide weight 1.5%, rotated 40 minutes, and added the lanolin fatting agent of raw hide weight 12% again, rotated 50 minutes, the formic acid that adds raw hide weight 1.2% at last, make after the pH value of solution reaches 4.0 in the rotary drum, wash out drum, standing over night, vacuum-drying, adopting the aluminium film of the method plating thickness 300nm of vacuum evaporation, then, is 10 in vacuum tightness
-2Temperature with 60 ℃ in the vacuum oven of holder spread metal 6 hours in leather, inject aluminum ion by flesh side of a belt in leather; Be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.
Embodiment 3: at first raw hide is placed rotary drum immersion 18 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 1.3, the concentration that makes sodium sulphite is 8 grams per liters, continues to rotate after 1.6 hours in rotary drum, and the mass concentration that adds raw hide weight 4.2% again is 30% sodium hydroxide, be rotated further 1 hour, washing then, deliming, softening; Secondly the regulator solution ratio is to 1.2, the salt that adds raw hide weight 10% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.4% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 1.2% is that 37% acetic acid rotated 1.0 hours then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 6 hours, regulator solution adds the sodium bicarbonate of raw hide weight 1.3% and 1% sodium-acetate again than to 1.1, rotates 2 hours, after making the pH value reach 5.4, washing, the regulator solution ratio is to 1.5, when being warmed to 60 ℃, the leather black that adds raw hide weight 1.8%, rotated 40 minutes, and added the synthetic fat liquor of raw hide weight 15% again, rotated 50 minutes, the formic acid that adds raw hide weight 1.5% at last, make after the pH value of solution reaches 3.6 in the rotary drum, wash out drum, standing over night, vacuum-drying, adopting the plumbous film of the method plating thickness 400nm of vacuum evaporation, then, is 10 in vacuum tightness
-2Temperature with 55 ℃ in the vacuum oven of holder spread metal 6 hours in leather, inject silver ions by flesh side of a belt in leather; Be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.
Embodiment 4: at first raw hide is placed rotary drum immersion 24 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 1.7, the concentration that makes sodium sulphite is 9 grams per liters, continues to rotate after 2 hours in rotary drum, and the mass concentration that adds raw hide weight 4.5% again is 30% sodium hydroxide, be rotated further 1 hour, washing then, deliming, softening; Secondly the regulator solution ratio is to 1.5, the salt that adds raw hide weight 15% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.5% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 2% is that 37% acetic acid rotated 0.8 hour then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 4 hours, regulator solution adds the sodium bicarbonate of raw hide weight 1% and 1% sodium-acetate again than to 1.0, rotates 2.5 hours, after making the pH value reach 5.5, washing, the regulator solution ratio is to 1.0, when being warmed to 55 ℃, the leather that adds raw hide weight 1%, rotated 40 minutes, and added the modified vegetable oil fatting agent of raw hide weight 10% again, rotated 50 minutes, the formic acid that adds raw hide weight 0.9% at last, make after the pH value of solution reaches 3.8 in the rotary drum, wash out drum, standing over night, vacuum-drying, adopting the aluminium film of the method plating thickness 320nm of vacuum evaporation, then, is 10 in vacuum tightness
-2Temperature with 50 ℃ in the vacuum oven of holder spread metal 6 hours in leather, inject aluminum ion by flesh side of a belt in leather; Be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.
The present invention can be used for the material-antistatic leather of industries such as microelectronics, liquid-crystal display, leatherwear, shoemaking, leather body of the present invention increases leather substance charged ion concentration by immersion, alkali swelling, tanning, retanning, stuffing etc., and the method that reduces the transition potential barrier improves the specific conductivity of leather substance.The present invention leads and surface conductance by the body electricity that improves leather substance, and the dust of avoiding the course of processing (as operations such as buffings) to produce is adsorbed by leather substance, thereby influences the adhesion of coating; Lead and surface conductance by the body electricity that improves leather substance, avoid leather substance in use to the absorption of pollutents such as dust, thereby improve its sanitation performance.
Claims (5)
1, a kind of preparation method of antistatic leather is characterized in that:
1) at first raw hide is placed rotary drum to soak 6～24 hours, after treating that raw hide fully eases back, regulator solution adds sodium sulphite again than after 1.0～2.0, the concentration that makes sodium sulphite is 5～10 grams per liters, and after continuing to rotate 1.5～2 hours in rotary drum, the mass concentration that adds raw hide weight 3.5～4.5% again is 30% sodium hydroxide, be rotated further 1 hour, washing then, deliming, softening;
2) next regulator solution ratio is to 0.5～1.5, the salt that adds raw hide weight 10～15% in the raw hide after softening rotated 10 minutes, the mass concentration that adds raw hide weight 1.0～1.5% from axis hole is that the mass concentration of 98% sulfuric acid and raw hide weight 1～2% is that 37% acetic acid rotated 0.5～1.5 hour then, normal temperature is down with iron tannage agent tanning 3 hours, left standstill 12 hours, dig layer, shaving, weigh, used the acrylic resin retanning agent retanning again 3～6 hours, the regulator solution ratio is to 1.0～1.5, add the sodium bicarbonate of raw hide weight 1～2% and 1% sodium-acetate again, rotated 1～3 hour, after making the pH value reach 5.0～5.5, washing, the regulator solution ratio is to 1.0～1.5, when being warmed to 50～65 ℃, the matching stain that adds raw hide weight 1～2%, rotated 40 minutes, the leather fat that adds raw hide weight 8～15% again, rotated 50 minutes, the formic acid that adds raw hide weight 0.5～1.5% at last, make after the pH value of solution reaches 3.5～4.0 in the rotary drum, wash out drum, standing over night, vacuum-drying, adopt plumbous film or the aluminium film of the method plating thickness 200～400nm of vacuum evaporation, then, in vacuum tightness is that the temperature with 50～65 ℃ spread metal 6 hours in the vacuum oven of 10-2 holder in leather, injects silver or aluminum ion by flesh side of a belt in leather;
3) be that the layer/polyaniline conductive film coating of micron number magnitude gets final product at last in the leather surface applied thickness.
2, the preparation method of antistatic leather according to claim 1 is characterized in that: said matching stain is leather black or leather.
3, the preparation method of antistatic leather according to claim 1 is characterized in that: said leather fat is fullness imparting fish oil, lanolin fatting agent, synthetic fat liquor or modified vegetable oil fatting agent.
4, a kind of antistatic leather that makes according to the preparation method of claim 1 comprises leather body (2), it is characterized in that: the outside surface at leather body (2) is coated with layer of conductive film coating (1).
5, antistatic leather according to claim 4 is characterized in that: the thickness of said conductive film coating (1) is the polyaniline electrically conducting transparent macromolecular material of micron number magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610104967XA CN100519765C (en) | 2006-11-24 | 2006-11-24 | Antistatic leather and its preparing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610104967XA CN100519765C (en) | 2006-11-24 | 2006-11-24 | Antistatic leather and its preparing method |
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| Publication Number | Publication Date |
|---|---|
| CN1978670A true CN1978670A (en) | 2007-06-13 |
| CN100519765C CN100519765C (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200610104967XA Expired - Fee Related CN100519765C (en) | 2006-11-24 | 2006-11-24 | Antistatic leather and its preparing method |
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| CN (1) | CN100519765C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982547A (en) * | 2010-10-18 | 2011-03-02 | 海宁森德皮革有限公司 | Light-proof and sweat-proof leathers for steering wheels |
| CN102535198A (en) * | 2011-12-08 | 2012-07-04 | 陕西科技大学 | Dyeing method of acid dyes assisted by functionalized carbon nanotubes |
| US8507102B1 (en) | 2012-08-07 | 2013-08-13 | Fownes Brothers & Co., Inc. | Conductive leather materials and methods for making the same |
| CN105039611A (en) * | 2015-07-08 | 2015-11-11 | 四川大学 | Anti-static cattle hide upper leather and preparation method thereof |
| US10221519B2 (en) | 2014-12-10 | 2019-03-05 | Fownes Brothers & Co., Inc. | Water-repellant conductive fabrics and methods for making the same |
| CN116804235A (en) * | 2023-06-28 | 2023-09-26 | 四川大学 | Method for preparing conductive leather based on ion conduction principle |
-
2006
- 2006-11-24 CN CNB200610104967XA patent/CN100519765C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982547A (en) * | 2010-10-18 | 2011-03-02 | 海宁森德皮革有限公司 | Light-proof and sweat-proof leathers for steering wheels |
| CN101982547B (en) * | 2010-10-18 | 2013-05-29 | 海宁森德皮革有限公司 | Light-proof and sweat-proof leathers for steering wheels |
| CN102535198A (en) * | 2011-12-08 | 2012-07-04 | 陕西科技大学 | Dyeing method of acid dyes assisted by functionalized carbon nanotubes |
| CN102535198B (en) * | 2011-12-08 | 2014-01-29 | 陕西科技大学 | Dyeing method of acid dyes assisted by functionalized carbon nanotubes |
| US8507102B1 (en) | 2012-08-07 | 2013-08-13 | Fownes Brothers & Co., Inc. | Conductive leather materials and methods for making the same |
| US9963752B2 (en) | 2012-08-07 | 2018-05-08 | Fownes Brothers & Co., Inc. | Conductive leather materials and methods for making the same |
| US10221519B2 (en) | 2014-12-10 | 2019-03-05 | Fownes Brothers & Co., Inc. | Water-repellant conductive fabrics and methods for making the same |
| CN105039611A (en) * | 2015-07-08 | 2015-11-11 | 四川大学 | Anti-static cattle hide upper leather and preparation method thereof |
| CN105039611B (en) * | 2015-07-08 | 2020-08-18 | 四川大学 | Antistatic cattle vamp leather and preparation method thereof |
| CN116804235A (en) * | 2023-06-28 | 2023-09-26 | 四川大学 | Method for preparing conductive leather based on ion conduction principle |
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| Publication number | Publication date |
|---|---|
| CN100519765C (en) | 2009-07-29 |
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Granted publication date: 20090729 Termination date: 20111124 |