CN113073157A - Production process of antibacterial leather for automobile steering wheel - Google Patents
Production process of antibacterial leather for automobile steering wheel Download PDFInfo
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- CN113073157A CN113073157A CN202110364620.3A CN202110364620A CN113073157A CN 113073157 A CN113073157 A CN 113073157A CN 202110364620 A CN202110364620 A CN 202110364620A CN 113073157 A CN113073157 A CN 113073157A
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/04—Soaking
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
Abstract
The invention discloses a production process of antibacterial leather for an automobile steering wheel, which comprises the following steps: a pre-soaking process: based on 100 parts of fur which is put into the rotary drum, 100 parts of fur is firstly added into the rotary drum, and then 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash are sequentially added into the rotary drum for presoaking. Has the advantages that: the three bactericidal and antibacterial agents are respectively used in a plurality of tanning stages, so that the bactericidal, mildew-proof and bacteriostatic effects in different stages are ensured, and particularly, zinc oxide antibacterial substances are adopted in the top coating and the stain-resistant layer, so that the antibacterial and bacteriostatic capacity is high, and the influence of various harmful pathogenic bacteria on people in the contact use process of the steering wheel is avoided due to the special safety characteristic and the special bactericidal effect of the zinc oxide antibacterial substances, and the steering wheel is safe and nontoxic.
Description
Technical Field
The invention relates to the technical field of leather production, in particular to a production process of antibacterial leather for an automobile steering wheel.
Background
With the improvement of living standard, people have stronger health consciousness, and ecological, natural, antibacterial and pollution-free products are increasingly needed. In domestic and foreign trade, consumption of green ecological harmless products gradually becomes a consumption trend, and antibacterial and health products are one of the mainstream. The automobile steering wheel has very high requirements on the quality characteristics of wear resistance, wear-resistant color fastness, sweat resistance, sewing fatigue resistance and the like of surface materials related to use, meanwhile, the steering wheel is the most close and frequent part for human-vehicle interaction, the antibacterial capacity of the surface materials on the steering wheel directly influences the safety and health of users, but the leather for the existing steering wheel has poor antibacterial performance, is under high pressure in modern society life and strong in work competition, generally has various sub-health states, has relatively insufficient immunity, has relatively strong attacking force of various pathogenic bacteria to human beings, has antibacterial and bactericidal capacities under the condition of ensuring the use characteristics, and has very important significance.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a production process of antibacterial leather for an automobile steering wheel, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a production process of antibacterial leather for an automobile steering wheel comprises the following steps:
a pre-soaking process: based on 100 parts of fur weight put into the rotary drum, firstly adding 100 parts of fur into the rotary drum, and then sequentially adding 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of water-soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash into the rotary drum for pre-soaking;
a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
tanning process: adding 100 parts of water, 1 part of an organic flowable bactericide and 6-8 parts of a tanning agent in sequence based on 100 parts of the weight of the leather put into the rotary drum, after tanning reaction for 120 minutes, adding 0.5 part of an alkali extracting agent FB, rotating for 120 minutes, heating to 38-40 ℃, and continuing to rotate for 120 minutes;
a fat liquoring procedure: adding 100 parts of 50 ℃ warm water with the same amount, namely 100 parts, into the rotary drum in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating the rotary drum for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to 3.3-3.5, keeping the rotary drum rotating for 30 minutes, ending the fatting and color fixing process, draining, washing for 3 times, draining and taking out the drum:
roller coating of the secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyvinyl chloride Matt200, 5 parts of Matt polyvinyl chloride Matt102, 19 parts of polyvinyl chloride Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting 50 +/-3S (No. 4 Ford cup) of the mixed materials, adopting a Top Star roll coater and a rubber roller, enabling leather to enter a roll gap of the roll coater at a speed of 10 +/-1 m/min, adjusting the roll gap to obtain a coating amount of 80 +/-5 g/m2, then heating the leather to a drying tunnel, controlling the temperature to be 90-100 ℃, controlling the heating time of the drying tunnel to be 5-6 minutes, and after hanging, cooling, neatly collecting the leather on a horse stool and then flowing into the next process;
spraying an antifouling and antibacterial strengthening layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain-resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying the slurry on the surface of the leather in a spraying amount of 20 +/-2 g/m2, horizontally drying the mixture through a baking channel at a temperature of 95 +/-5 ℃, and controlling the drying time within 10 minutes to obtain the antibacterial leather for the automobile steering wheel.
Further, in the pre-soaking step, the rotary drum is rotated for 150 minutes at the temperature of 24-25 ℃, and the pH value is controlled to be 7-8.
Further, in the main soaking step, the rotary drum is rotated at the temperature of 24-25 ℃ for 200-300 minutes, and the pH value is controlled at 9.5-10.
Further, the tanning agent is any one of chromium powder or chromium-free tanning agent.
Further, in the above water washing process, 300 parts of water was added to the drum each time and the drum was rotated to perform water washing for 20 minutes.
Compared with the prior art, the invention has the following beneficial effects: firstly, low-emission raw and auxiliary materials and a cleaning process are adopted in the production and manufacturing process, so that the environment is not polluted; secondly, a plurality of high-efficiency fat liquoring agents with low odor and low atomization value are combined for fat liquoring filling, so that the fat liquoring combination effect and the fiber toughness are ensured; thirdly, the three bactericidal and antibacterial agents are respectively used in a plurality of tanning stages to ensure the bactericidal, mildew-proof and bacteriostatic effects in different stages, particularly, zinc oxide antibacterial substances are adopted in the top coating and the stain-resistant layer, so that the antibacterial and bacteriostatic ability is strong, and due to the special safety characteristics and the special bactericidal effect, the influence of various harmful pathogenic bacteria on people in the contact use process of the steering wheel is avoided, the product is safe and nontoxic, and the use of various harmful mildew-proof chemicals, such as dimethyl fumarate, is avoided; fourthly, the wear resistance, the color fastness to rubbing, the perspiration resistance, the stain resistance and other properties of the product are obviously improved and strengthened, and the technical level of leather manufacturing is powerfully improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart of a process for manufacturing antibacterial leather for an automobile steering wheel according to an embodiment of the present invention;
fig. 2 is a table showing the results of performance and antibacterial ability tests of leather produced by a process for manufacturing antibacterial leather for a steering wheel of an automobile according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
according to the embodiment of the invention, the production process of the antibacterial leather for the automobile steering wheel is provided.
As shown in fig. 1, the production process of the antibacterial leather for the steering wheel of the automobile comprises the following steps:
s101, a pre-soaking process: based on 100 parts of fur weight put into the rotary drum, firstly adding 100 parts of fur into the rotary drum, and then sequentially adding 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of water-soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash into the rotary drum for pre-soaking;
s103, a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
s105, tanning: adding 100 parts of water, 1 part of an organic flowable bactericide and 6-8 parts of a tanning agent in sequence based on 100 parts of the weight of the leather put into the rotary drum, after tanning reaction for 120 minutes, adding 0.5 part of an alkali extracting agent FB, rotating for 120 minutes, heating to 38-40 ℃, and continuing to rotate for 120 minutes;
s107, a fat liquoring process: adding 100 parts of 50 ℃ warm water with the same amount, namely 100 parts, into the rotary drum in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating the rotary drum for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to be 3.3-3.5, keeping the rotary drum rotating for 30 minutes, finishing the fatting and color fixing process, draining, washing for 3 times, draining and taking out the drum;
s109, roller coating of a secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyvinyl chloride Matt200, 5 parts of Matt polyvinyl chloride Matt102, 19 parts of polyvinyl chloride Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting the consistency of the mixed materials to 50 +/-3S (No. 4 Ford cup), adopting a Top Star roll coater and a rubber roller, enabling leather to enter a roll gap of the roll coater at a speed of 10 +/-1 m/min, adjusting the roll gap to obtain a coating amount of 80 +/-5 g/m2, then entering a heating drying tunnel, controlling the temperature to be 90-100 ℃, controlling the heating time of the drying tunnel to be 5-6 minutes, and after hanging, cooling, neatly collecting the leather on a horse stool and then flowing into the next process;
s111, spraying an antifouling and antibacterial reinforcing layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain-resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying the slurry on the surface of the leather in a spraying amount of 20 +/-2 g/m2, horizontally drying the mixture through a baking channel at a temperature of 95 +/-5 ℃, and controlling the drying time within 10 minutes to obtain the antibacterial leather for the automobile steering wheel.
Wherein, in the pre-soaking step, the rotary drum is rotated for 150 minutes at the temperature of 24-25 ℃, and the pH value is controlled to be 7-8.
In the main soaking step, the rotary drum is rotated at 24-25 ℃ for 200-300 minutes, and the pH value is controlled at 9.5-10.
The tanning agent is any one of chromium powder or chromium-free tanning agent.
In the above washing process, 300 parts of water was added to the drum each time and the drum was rotated to carry out washing for 20 minutes.
The first embodiment is as follows:
the production process of the antibacterial leather for the automobile steering wheel comprises the following steps:
a pre-soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
tanning process: adding 100 parts of water, 1 part of organic flowable bactericide and 6 parts of tanning agent in turn based on 100 parts of the weight of the leather put into the rotary drum, adding 0.5 part of alkali extraction agent FB after tanning reaction for 120 minutes, rotating for 120 minutes, heating to 38 ℃, and continuing rotating for 120 minutes;
a fat liquoring procedure: adding 100 parts of warm water at 50 ℃ into a rotary drum in an equal amount, namely 100 parts of warm water at 50 ℃ in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating the rotary drum for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to be 3.3, keeping the rotary drum rotating for 30 minutes, finishing the fatting and color fixing process, draining, washing for 3 times, draining and discharging out of the drum;
roller coating of the secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyvinyl chloride Matt200, 5 parts of Matt polyvinyl chloride Matt102, 19 parts of polyvinyl chloride Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting the consistency 47S (No. 4 Ford cup) of the mixed materials, adopting a Top Star roller coater and a rubber roller, enabling leather to enter a roller gap of the roller coater at a speed of 9 m/min, adjusting the roller gap to obtain a coating amount of 75g/m2, then entering a heating drying tunnel, controlling the temperature to be 90 ℃, controlling the heating time of the drying tunnel to be 5 min, and after hanging, cooling, orderly collecting the leather on a stool and then flowing into a next process;
spraying an antifouling and antibacterial strengthening layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying slurry on the surface of the leather at the spraying amount of 18g/m2, horizontally drying the leather through a drying tunnel at 90 ℃, and controlling the drying time within 10 minutes to obtain the antibacterial leather for the automobile steering wheel.
Wherein, in the pre-soaking step, the rotary drum is rotated for 100 minutes at the temperature of 24 ℃, and the pH value is controlled to be 7.
In the main soaking step, the drum is rotated at 24 deg.C for 200 min, and pH is controlled at 9.5.
The tanning agent is any one of chromium powder or chromium-free tanning agent.
In the above washing process, 300 parts of water was added to the drum each time and the drum was rotated to carry out washing for 20 minutes.
Example two:
the production process of the antibacterial leather for the automobile steering wheel comprises the following steps:
a pre-soaking process: based on 100 parts of fur weight put into the rotary drum, firstly adding 100 parts of fur into the rotary drum, and then sequentially adding 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of water-soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash into the rotary drum for pre-soaking;
a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
tanning process: adding 100 parts of water, 1 part of organic flowable bactericide and 7 parts of tanning agent in turn based on 100 parts of the weight of the leather put into the rotary drum, adding 0.5 part of alkali extraction agent FB after tanning reaction for 120 minutes, rotating for 120 minutes, heating to the temperature of 39 ℃, and continuing rotating for 120 minutes;
a fat liquoring procedure: adding 100 parts of warm water at 50 ℃ into a rotary drum in an equal amount, namely 100 parts of warm water at 50 ℃ in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating the rotary drum for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to 3.4, keeping the rotary drum rotating for 30 minutes, finishing the fatting and color fixing process, draining, washing for 3 times, draining and discharging out of the drum;
roller coating of the secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyvinyl chloride Matt200, 5 parts of Matt polyvinyl chloride Matt102, 19 parts of polyvinyl chloride Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting the consistency of the mixed materials to 50S (No. 4 Ford cup), adopting a Top Star roller coater and a rubber roller, enabling leather to enter a roller gap of the roller coater at a speed of 10 m/min, adjusting the roller gap to obtain a coating amount of 80g/m2, then entering a heating drying tunnel, controlling the temperature to be 95 ℃, controlling the heating time of the drying tunnel to be 5.5 min, and after hanging and cooling, orderly collecting the leather on a horse stool and then flowing into the next process;
spraying an antifouling and antibacterial strengthening layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying slurry on the surface of the leather at the spraying amount of 20g/m2, horizontally drying the leather through a drying tunnel at the temperature of 95 ℃, and controlling the drying time within 1O minute to obtain the antibacterial leather for the automobile steering wheel.
Wherein, in the pre-soaking step, the rotary drum is rotated for 125 minutes at the temperature of 24.5 ℃, and the pH value is controlled to be 7.5.
In the main soaking step, the drum is rotated at 24.5 deg.C for 250 min, and pH is controlled at 9.75.
The tanning agent is any one of chromium powder or chromium-free tanning agent.
In the above washing process, 300 parts of water was added to the drum each time and the drum was rotated to carry out washing for 20 minutes.
Example three:
the production process of the antibacterial leather for the automobile steering wheel comprises the following steps:
a pre-soaking process: based on 100 parts of fur weight put into the rotary drum, firstly adding 100 parts of fur into the rotary drum, and then sequentially adding 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of water-soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash into the rotary drum for pre-soaking;
a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
tanning process: adding 100 parts of water, 1 part of organic flowable bactericide and 8 parts of tanning agent in turn based on 100 parts of the weight of the leather put into the rotary drum, after tanning reaction for 120 minutes, adding 0.5 part of alkali-extracting agent FB, rotating for 120 minutes, heating to 40 ℃, and continuing to rotate for 120 minutes;
a fat liquoring procedure: adding 100 parts of warm water at 50 ℃ into a rotary drum in equal amount, namely 100 parts of warm water at 50 ℃ in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to be 3.5, keeping the rotary drum rotating for 30 minutes, finishing the fatting and color fixing process, draining water, washing for 3 times, draining and discharging out of the drum;
roller coating of the secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyvinyl chloride Matt200, 5 parts of Matt polyvinyl chloride Matt102, 19 parts of polyvinyl chloride Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting the consistency 53S (No. 4 Ford cup) of the mixed materials, adopting a Top Star roller coater and a rubber roller, enabling leather to enter a roller gap of the roller coater at a speed of 11 m/min, adjusting the roller gap to obtain a coating amount of 85g/m2, then entering a heating drying tunnel, controlling the temperature to be 100 ℃, controlling the heating time of the drying tunnel to be 6 min, and after hanging, cooling, orderly collecting the leather on a stool and then flowing into a next process;
spraying an antifouling and antibacterial strengthening layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying slurry on the surface of the leather at the spraying amount of 22g/m2, horizontally drying the leather through a drying tunnel at 100 ℃, and controlling the drying time within 10 minutes to obtain the antibacterial leather for the automobile steering wheel.
Wherein, in the pre-soaking step, the rotary drum is rotated at 25 ℃ for 150 minutes, and the pH value is controlled at 8.
In the main soaking step, the drum is rotated at 25 deg.C for 300 min, and the pH is controlled at 10.
The tanning agent is any one of chromium powder or chromium-free tanning agent.
In the above washing process, 300 parts of water was added to the drum each time and the drum was rotated to carry out washing for 20 minutes.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the leather for the steering wheel has high pressure on life and fierce work competition in modern society, various sub-health states generally exist, the immunity is relatively insufficient, the attack force of various pathogenic bacteria on human is relatively strong, so that the leather for the steering wheel has antibacterial and bactericidal capacity under the condition of ensuring the use characteristics, the significance is very important, if the leather product has fresh fragrance and low emission, the leather is more pleasant to the mind and body of a driver, therefore, the high-performance low-emission antibacterial leather not only meets the requirements of covering and using the steering wheel, but also meets the requirements of environmental protection improvement and pursuit of people for high-quality healthy life, the leather special for the automobile steering wheel shows the advantages of use, environmental protection and safety in the following 4 aspects, firstly, the raw and auxiliary materials with low emission and a cleaning process are adopted in the production and manufacturing process, so that the environment is not polluted; secondly, a plurality of high-efficiency fat liquoring agents with low odor and low atomization value are combined for fat liquoring filling, so that the fat liquoring combination effect and the fiber toughness are ensured; thirdly, the three bactericidal and antibacterial agents are respectively used in a plurality of tanning stages to ensure the bactericidal, mildew-proof and bacteriostatic effects in different stages, particularly, zinc oxide antibacterial substances are adopted in the top coating and the stain-resistant layer, so that the antibacterial and bacteriostatic ability is strong, and due to the special safety characteristics and the special bactericidal effect, the influence of various harmful pathogenic bacteria on people in the contact use process of the steering wheel is avoided, the product is safe and nontoxic, and the use of various harmful mildew-proof chemicals, such as dimethyl fumarate, is avoided; fourthly, the wear resistance, the color fastness to rubbing, the perspiration resistance, the stain resistance and other properties of the product are obviously improved and strengthened, and the technical level of leather manufacturing is powerfully improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A production process of antibacterial leather for an automobile steering wheel is characterized by comprising the following steps:
a pre-soaking process: based on 100 parts of fur weight put into the rotary drum, firstly adding 100 parts of fur into the rotary drum, and then sequentially adding 100 parts of water, 0.1 part of bactericide Peltec DZ, 0.1 part of water-soaking agent Peltec SA, 0.2 part of degreasing agent Peltec ADN and 0.2 part of soda ash into the rotary drum for pre-soaking;
a main soaking process: adding the same amount of water, a Peltec DZ bactericide, a Peltec ADN degreasing agent and a double Peltec SA soaking agent in the pre-soaking treatment process and soda ash in sequence for main soaking based on 100 parts of fur weight put into the rotary drum;
tanning process: adding 100 parts of water, 1 part of an organic flowable bactericide and 6-8 parts of a tanning agent in sequence based on 100 parts of the weight of the leather put into the rotary drum, after tanning reaction for 120 minutes, adding 0.5 part of an alkali extracting agent FB, rotating for 120 minutes, heating to 38-40 ℃, and continuing to rotate for 120 minutes;
a fat liquoring procedure: adding 100 parts of 50 ℃ warm water with the same amount, namely 100 parts, into the rotary drum in sequence based on 100 parts of the weight of the leather put into the rotary drum, rotating for 10 minutes, adding 10 parts of fatting agent FGB and 3 parts of fatting agent SQS, rotating for 60 minutes to enable the mixture to be uniformly and fully absorbed, adding 1 part of formic acid and 0.2 part of mildew preventive 30L, rotating the rotary drum for 10 minutes, adding 0.5 part of formic acid after full permeation, adjusting the pH value to be 3.3-3.5, keeping the rotary drum rotating for 30 minutes, finishing the fatting and color fixing process, draining, washing for 3 times, draining and taking out the drum;
roller coating of the secondary top coating: based on 100 parts of mixed materials, sequentially adding 21 parts of water, 17 parts of Matt polyurethane Matt200, 5 parts of Matt polyurethane Matt102, 19 parts of polyurethane Hpv-c, 8 parts of acrylic resin CL-1, 10 parts of hand feeling agent Fluid H, 4 parts of hand feeling agent 2229W, 3 parts of hand feeling agent WN, 3 parts of zinc oxide antibacterial agent and 10 parts of cross-linking agent CI, finally adjusting the consistency of the mixed materials to be 50 +/-3S (No. 4 Ford cup), adopting a Top Star roll coater and a rubber roller, enabling leather to enter a roll gap of the roll coater at a speed of 10 +/-1 m/min, adjusting the roll gap to obtain a coating amount of 80 +/-5 g/m2, then entering a heating drying channel, controlling the temperature to be 90-100 ℃, controlling the heating time of the drying channel to be 5-6 minutes, hanging, cooling, and then regularly collecting the leather on a horse stool and then flowing into the next process;
spraying an antifouling and antibacterial strengthening layer: based on 100 parts of preparation: respectively adding 18 parts of water, 8 parts of antifouling agent PROTECTOR SR, 9 parts of hand feeling agent GF, 8 parts of acrylic resin CL-1, 20 parts of extinction acrylic resin AD-1, 22 parts of extinction polytetrafluoroethylene copolymer X-SHIELD L2, 3 parts of hand feeling agent WN, 4 parts of active zinc oxide Masilva9500TM antibacterial agent and 8 parts of cross-linking agent CI, uniformly mixing the chemical materials prepared by the stain resistant layer formula, spraying the mixture by a spraying machine, directly and uniformly spraying slurry on the surface of the leather in a spraying amount of 20 +/-2 g/m2, horizontally drying the mixture by a drying tunnel at a temperature of 95 +/-5 ℃, and controlling the drying time within 10 minutes to obtain the antibacterial leather for the automobile steering wheel.
2. The process for producing the antibacterial leather for the steering wheel of the automobile as claimed in claim 1, wherein in the pre-soaking step, the rotary drum is rotated at a temperature of 24-25 ℃ for 150 minutes, and the pH value is controlled at 7-8.
3. The process for producing the antibacterial leather for the steering wheel of the automobile as claimed in claim 2, wherein in the main soaking step, the rotary drum is rotated at a temperature of 24-25 ℃ for 200-300 minutes, and the pH value is controlled at 9.5-10.
4. The process for producing antibacterial leather for an automobile steering wheel according to claim 3, wherein the tanning agent is any one of chrome powder or chrome-free tanning agent.
5. The process for producing antibacterial leather for steering wheels of automobiles according to claim 4, wherein in the above water washing process, 300 parts of water is added to the drum each time and the drum is rotated for 20 minutes of water washing.
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| CN115895416A (en) * | 2021-08-18 | 2023-04-04 | 贝内克-长顺汽车内饰材料（张家港）有限公司 | Coating composition for leather surface and corresponding leather |
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