CN113249533A - Preparation process of nano silver cow leather mat - Google Patents
Preparation process of nano silver cow leather mat Download PDFInfo
- Publication number
- CN113249533A CN113249533A CN202110560131.5A CN202110560131A CN113249533A CN 113249533 A CN113249533 A CN 113249533A CN 202110560131 A CN202110560131 A CN 202110560131A CN 113249533 A CN113249533 A CN 113249533A
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- silver
- nano
- mat
- cow leather
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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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
- A47G9/007—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows comprising deodorising, fragrance releasing, therapeutic or disinfecting substances
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention relates to the field of manufacturing of leather summer sleeping mats, and particularly discloses a preparation process of a nano silver cowhide mat. The method comprises the following steps: step 1: preparing liquid, namely mixing 5-10 parts by weight of hand feeling agent, 10-12 parts by weight of penetrating agent, 22-28 parts by weight of fixing agent, nano silver and clear water to form a mixed liquid, wherein the weight ratio of the nano silver in the mixed liquid is more than or equal to 5%, and the weight ratio of the clear water is more than or equal to 15%; standing the mixed solution for more than 4 hours to obtain a standing solution; step 2: adsorbing, namely spraying standing liquid on the surface of the cowhide mat, and drying the cowhide mat at the drying temperature of 100-160 ℃; and step 3: and (4) shaping, namely pressing the cowhide mat for 2-5 s by adopting a pressing plate at the temperature of 110-150 ℃ until the cowhide mat is restored to be flat. The cow leather mat with the functions of sterilization and bacteriostasis can be prepared by adopting the preparation process of the nano silver cow leather mat.
Description
Technical Field
The invention relates to the field of manufacturing of leather summer sleeping mats, in particular to a preparation process of a nano silver cowhide mat.
Background
The cowhide mat is a cowhide summer mat, and the conventional cowhide mat is usually processed by taking buffalo as a raw material. The natural pores exist on the cow leather, and the pores can still have the effects of ventilation, sweat absorption, heat dissipation and moisture prevention after the cow leather mat is manufactured. In the production of a cowhide mat, buffalo hide is processed into rectangular cowhide, and then bonded to form a large-sized cowhide mat. However, the summer sleeping mat is usually in close contact with a user when in use, after long-time use, one or more of bacteria, fungi, mold, spores, mites and the like often exist on the surface of the summer sleeping mat, but the cow leather mat can only be wiped in the use process, cannot be cleaned and disinfected, and is not beneficial to the body health of a patient after long-time use.
Disclosure of Invention
The invention aims to provide a preparation process of a nano silver cowhide mat, so as to prepare the cowhide mat with the functions of sterilization and bacteriostasis.
In order to achieve the purpose, the invention adopts the following technical scheme: a preparation process of a nano silver cow leather mat comprises the following steps:
step 1: preparing liquid, namely mixing 5-10 parts by weight of hand feeling agent, 10-12 parts by weight of penetrating agent, 22-28 parts by weight of fixing agent, nano silver and clear water to form a mixed liquid, wherein the weight ratio of the nano silver in the mixed liquid is more than or equal to 5%, and the weight ratio of the clear water is more than or equal to 15%; standing the mixed solution for more than 4 hours to obtain a standing solution;
step 2: adsorbing, namely spraying standing liquid on the surface of the cowhide mat, and drying the cowhide mat at the drying temperature of 100-160 ℃;
and step 3: and (4) shaping, namely pressing the cowhide mat for 2-5 s by adopting a pressing plate at the temperature of 110-150 ℃ until the cowhide mat is restored to be flat.
The beneficial effect of this scheme does:
the nano silver is widely applied to broad-spectrum antibacterial agents, has the functions of diminishing inflammation, sterilizing and paper pattern, and can obviously inhibit pathogenic vaccines such as staphylococcus aureus, escherichia coli, gonococcus, candida albicans, saccharomycetes, fungi and the like. However, the nano silver is in powder form, and is difficult to be directly added into the cow leather mat, and aiming at the problem, for example, an antibacterial mat containing the isatis root extract disclosed in the patent with the publication number of CN 110638277A: soaking the cotton fiber and the ice silk which are made into the summer sleeping mat by the radix isatidis extracting solution, so that the radix isatidis extracting solution enters the fiber and the ice silk. At present, additives are usually added into summer sleeping mats by adopting a soaking mode, but the traditional summer sleeping mats are usually formed by weaving bamboo strips or plant fiber threads such as bamboo, cotton, hemp and the like, and the summer sleeping mats can be dried by airing or drying after being soaked without damaging the summer sleeping mats.
However, when a cowhide mat is manufactured, after a fresh cowhide is formed into a cowhide through the processes of salt sweeping, skin feeding, water soaking, fleshing, peeling, softening, tanning, drying and the like, because the cowhide of each cow is limited and is not in a regular rectangular shape, each cowhide needs to be cut into a rectangular shape, and then a plurality of rectangular cowhides need to be spliced and adhered to form the cowhide mat. If the cow leather mat is soaked by the nano-silver turbid liquid after being formed, the viscose for bonding the rectangular cow leathers can fall off, and two adjacent rectangular cow leathers are separated, so that the formed cow leather mat cannot enable the nano-silver to enter the cow leather mat in a soaking mode.
Based on the tests, the inventor thinks that the cowhide mat is soaked before being bonded and formed, but different from the traditional summer sleeping mat made of plant fibers, the cowhide is very easy to breed bacteria after being soaked, the cowhide needs to be sterilized after being soaked and needs to be dried as soon as possible, so the cowhide is usually dried at the temperature of more than 200 ℃ after being soaked, but the nano silver has small particle size and high surface energy and chemical activity, and can be agglomerated during high-temperature drying, and the agglomerated silver no longer has the effects of sterilization and bacteriostasis, so the cowhide can not adopt a soaking mode to enable the nano silver to enter the cowhide.
The inventor has changed the research and development thinking after, has reduced the nano-silver turbid liquid quantity, directly sprays the nano-silver turbid liquid on the cow hide mat surface, but finds that the turbid liquid can't permeate into the fashioned cow hide mat in, leads to nano-silver still can't get into in the cow hide mat. The inventor adds the penetrating agent into the turbid liquid, so that the cow leather mat contains a small amount of nano-silver, but multiple detections show that the nano-silver in the cow leather mat has poor durability and is difficult to continuously maintain the sterilization and bacteriostasis effects.
Based on the above, the inventor increases the spraying times, and carries out the spraying of the nano silver turbid liquid in each processing procedure of the cow leather mat in the early stage, but the using amount of the turbid liquid is increased, the cost of the nano silver is high, the cost of the finished product is sharply increased, and the nano silver in the cow leather mat is not easy to release and cannot play the effects of sterilization and bacteriostasis in the trial process of the finished product.
The inventor determines the preparation process in the scheme through multiple adjustments, and the cow leather mat prepared by the process has higher nano-silver content and can play better sterilization and bacteriostasis effects; compared with the method for soaking the cowhide mat, the spraying can reduce the amount of solution contacting the cowhide mat, prevent the viscose on the cowhide mat from falling off and breeding a large amount of bacteria, and the nano silver in the cowhide mat can be continuously released and can keep the sterilization and bacteriostasis effects for a long time.
Further, when preparing the solution in the step 1, mixing clear water, a hand feeling agent, a penetrating agent and a fixing agent to obtain a surfactant, and mixing the surfactant with the nano-silver.
The beneficial effect of this scheme does: compared with the method of directly mixing nano silver, clear water, a hand feeling agent, a penetrating agent and a fixing agent, the standing liquid formed by adopting the scheme is more smooth, fine and soft on the surface of the cow leather mat after being sprayed on the cow leather mat.
Further, after the surfactant is formed in the step 1, standing for more than 2 hours, and mixing with the nano silver.
The beneficial effect of this scheme does: when the leather mat is kept stand, clear water, the hand feeling agent, the penetrating agent and the fixing agent can be fully reflected and can be better mixed with the nano silver, and the prepared standing liquid is sprayed on the leather mat, so that the surface of the leather mat is smoother, more exquisite and softer.
Further, step 2 is to stir the standing solution again before spraying.
The beneficial effect of this scheme does: can further mix nanometer silver and mixed solution during the stirring, impel nanometer silver dispersion in mixed solution to when spraying, nanometer silver more even distribution is on the cow hide mat.
Further, spraying twice in the step 2, drying after each spraying, and the interval time of the two spraying is less than or equal to 2 h.
The beneficial effect of this scheme does: the amount of the nano silver attached to the cow leather mat can be increased during two times of spraying, and the sterilization and bacteriostasis effects are further improved.
Further, in the step 2, the spraying amount per square ruler is more than or equal to 10g during each spraying.
The beneficial effect of this scheme does: the amount of the nano-silver turbid liquid sprayed on the surface of the nano-silver is relatively large, and under the condition that the concentration of the nano-silver is the same, the nano-silver attached to the cow leather mat is more, so that the sterilization and bacteriostasis effects are better.
And further, after finishing the shaping in the step 3, flattening and storing the cow leather mat for 10 days or more.
The beneficial effect of this scheme does: when the leather mat is flatly laid and stored, wrinkles on the leather mat can be avoided, and when solution is remained in the leather mat, the solution remained on the leather mat can be further dried.
Further, the clear water in the step 1 is non-purified water.
The beneficial effect of this scheme does: because ions in the purified water are less, the purified water and the nano silver are usually adopted to form a suspension at present, but the experimental process shows that compared with the purified water, the nano silver suspension formed by common clear water such as tap water is sprayed on the cowhide mat, and the surface of the cowhide mat is smoother, finer and softer.
Further, after the standing liquid is stirred again in the step 2, the standing liquid is filtered to obtain a filtrate, and the filtrate is sprayed in the step 2.
The beneficial effect of this scheme does: during filtering, impurities brought in the clear water can be separated, and the situation that the impurities are attached to the surface of the cow leather mat to cause the surface of the cow leather mat to be rough is avoided.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
A preparation process of a nano silver cow leather mat comprises the following steps:
step 1: preparing a liquid, namely mixing 5-10 parts by weight of a hand feeling agent, 10-12 parts by weight of a penetrating agent and 22-28 parts by weight of a fixing agent to obtain a surfactant, wherein the hand feeling agent in the embodiment of the invention adopts TMF827, the penetrating agent adopts TMY940 and the fixing agent adopts TMO831, and the hand feeling agent, the penetrating agent and the fixing agent in the embodiment of the invention are 10 parts, 12 parts and 28 parts by weight respectively; standing for more than 2h, mixing the surfactant with the nano-silver to form a mixed solution, wherein the weight ratio of the nano-silver in the mixed solution is more than or equal to 5%, and the weight ratio of the clear water is more than or equal to 15%; standing the mixed solution for more than 4 hours to obtain a standing solution;
step 2: adsorbing, stirring the standing liquid, and filtering to obtain filtrate; then, firstly spraying the filtrate for the first time, and then drying for the first time after spraying is finished until the liquid on the surface of the cow leather mat is dried up; spraying for the second time, and drying for the second time after spraying, wherein the time interval between two times of spraying is less than or equal to 2 hours, the spraying amount of each square ruler is greater than or equal to 10g during two times of spraying, and the drying temperature is 100-160 ℃ during two times of drying;
and step 3: shaping, namely pressing the cowhide mat for 2-5 s by adopting a pressing plate at the temperature of 110-150 ℃ until the cowhide mat is restored to be flat; and then the cow leather mat is flattened and stored for 10 days or more.
The method comprises the following steps of 1-5, wherein the steps in the embodiments 1-5 are the same, and only the standing time of the surfactant, the weight ratio of the nano silver, the standing time of the mixed solution, the time interval between two times of spraying, the spraying amount per square ruler, the drying temperature, the pressing temperature and the pressing time are different, and the method is specifically as follows:
in addition, the invention also provides comparative examples 1-4:
the procedure of comparative example 1 was as follows:
step 1: except that the kinds and amounts of the clear water, the feel agent, the penetrant, the fixing agent and the nano silver, the amount of the nano silver used and other steps were the same as those of example 1, the mixed solution was directly prepared by mixing the clear water, the feel agent, the penetrant, the fixing agent and the nano silver.
Second, comparative example 2: the clear water in the step 1 is purified water, and other steps and the using amount are the same as those in the embodiment 1 except that purified water is adopted.
Third, comparative example 3: step 1 the same procedure as in example 1 was repeated except that the same tap water as in example 1 and the same amount of nano silver as in example 1 were mixed in the same batch to prepare a mixed solution.
Fourth, comparative example 4: the weight ratio of the nano silver in the mixed solution is 15%.
Fifth, comparative example 5: the weight ratio of the nano silver in the mixed solution is 20%.
3 cowhide of the same position of buffalo hide are got during the experiment, and cut into 4 pieces of 10 cm's sample with the part that takes off on the same cowhide, and serial number 1 ~ 6 respectively, and the sample of serial number 1 ~ 6 constitutes experiment group 1 ~ 6 respectively, and experiment group 1 ~ 6 adopts the step of example 1 and comparative example 1 ~ 5 respectively to prepare, and after spreading and depositing 10 days, adopt the moist towel of the same material to wipe the cowhide mat earlier, adopt testingmethods: LEATHER STANDARD by
(2018) The silver content of the cow leather mat was measured and the cow leather feel was tested, and the test results are shown in the following table:
through the test, through experiment group 1 and experiment group 2, discover under the condition that the kind, the quantity of raw materials and the step of step 2 ~ 3 are the same, mix fresh water, feel agent, penetrant, fixative earlier and form mixed liquid after, mix nanometer silver and mixed liquid again, the cow hide mat that makes is softer, and the surface of cow hide mat is more smooth, and when using, the comfort level of this kind of cow hide mat is better. Through experimental group 1 and experimental group 3, it was found that the cow leather mat manufactured using the suspension prepared using non-purified water such as tap water was softer and the surface of the cow leather mat was smoother than purified water, unlike the operation of dissolving nano silver using purified water, which is commonly used in the art.
In addition, when the content of the nano silver on the cow leather mat manufactured by the experimental group 4 is detected, the content of the silver is not detected, and after a plurality of experiments, the nano silver is difficult to detect again after the cow leather is wiped by a wet towel, while the Testing Methods: LEATHER STANDARD by
(2018) The detection limit of (2) was 3.9, and experimental group 4 demonstrated that nano silver easily fell off from cow leather and was difficult to be continuously attached to cow leather.
Finally, through the experiment group 1, the experiment group 5 and the experiment group 6, the higher the content of the nano silver in the mixed solution is, the more the nano silver in the prepared cow leather mat is, and the better the sterilization and bacteriostasis effects can be played finally.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A preparation process of a nano silver cow leather mat is characterized by comprising the following steps: the method comprises the following steps:
step 1: preparing liquid, namely mixing 5-10 parts by weight of hand feeling agent, 10-12 parts by weight of penetrating agent, 22-28 parts by weight of fixing agent, nano silver and clear water to form a mixed liquid, wherein the weight ratio of the nano silver in the mixed liquid is more than or equal to 5%, and the weight ratio of the clear water is more than or equal to 15%; standing the mixed solution for more than 4 hours to obtain a standing solution;
step 2: adsorbing, namely spraying standing liquid on the surface of the cowhide mat, and drying the cowhide mat at the drying temperature of 100-160 ℃;
and step 3: and (4) shaping, namely pressing the cowhide mat for 2-5 s by adopting a pressing plate at the temperature of 110-150 ℃ until the cowhide mat is restored to be flat.
2. The preparation process of the nano-silver cow leather mat according to claim 1, characterized in that: in the step 1, when the solution is prepared, clear water, a hand feeling agent, a penetrating agent and a fixing agent are mixed to obtain a surfactant, and then the surfactant is mixed with nano silver.
3. The preparation process of the nano-silver cow leather mat according to claim 2, characterized in that: and (3) after the surfactant is formed in the step (1), standing for more than 2 hours, and mixing with the nano-silver.
4. The preparation process of the nano-silver cow leather mat according to claim 1, characterized in that: and 2, stirring the standing liquid again before spraying.
5. The preparation process of the nano-silver cow leather mat according to claim 2 or 4, characterized in that: and 2, spraying twice, drying after each spraying, wherein the interval time of the two spraying is less than or equal to 2 h.
6. The preparation process of the nano-silver cow leather mat according to claim 5, characterized in that: in the step 2, the spraying amount of each square ruler is more than or equal to 10g during each spraying.
7. The preparation process of the nano-silver cow leather mat according to claim 6, characterized in that: and (4) after finishing the shaping in the step (3), flattening and storing the cow leather mat for 10 days or more.
8. The preparation process of the nano-silver cow leather mat according to claim 4, characterized in that: the clear water in the step 1 is non-purified water.
9. The preparation process of the nano-silver cow leather mat according to claim 8, characterized in that: and 2, stirring the standing liquid again, filtering the standing liquid to obtain a filtrate, and spraying the filtrate in the step 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110560131.5A CN113249533A (en) | 2021-05-21 | 2021-05-21 | Preparation process of nano silver cow leather mat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110560131.5A CN113249533A (en) | 2021-05-21 | 2021-05-21 | Preparation process of nano silver cow leather mat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114107578A (en) * | 2021-11-23 | 2022-03-01 | 重庆隆发皮革制品有限责任公司 | Antiviral cow leather mat and processing method thereof |
| CN115612755A (en) * | 2022-08-31 | 2023-01-17 | 湖南梦洁家纺股份有限公司 | Zeolite-tanned probiotic cow leather mat and preparation method thereof |
| CN115627303A (en) * | 2022-08-31 | 2023-01-20 | 湖南梦洁家纺股份有限公司 | Cow leather mat antibacterial treatment liquid and cow leather mat antibacterial treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102670007A (en) * | 2012-03-02 | 2012-09-19 | 四川大学 | Cow leather mat with anti-bacterial function and preparation method thereof |
| CN103405087A (en) * | 2013-08-09 | 2013-11-27 | 宁波市鄞州黎明工艺品有限公司 | Machining process and products of dual-purpose mat composited through rush and rayon |
| CN110628969A (en) * | 2019-08-30 | 2019-12-31 | 罗莱生活科技股份有限公司 | Anti-mite and antibacterial cow leather mat |
-
2021
- 2021-05-21 CN CN202110560131.5A patent/CN113249533A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102670007A (en) * | 2012-03-02 | 2012-09-19 | 四川大学 | Cow leather mat with anti-bacterial function and preparation method thereof |
| CN103405087A (en) * | 2013-08-09 | 2013-11-27 | 宁波市鄞州黎明工艺品有限公司 | Machining process and products of dual-purpose mat composited through rush and rayon |
| CN110628969A (en) * | 2019-08-30 | 2019-12-31 | 罗莱生活科技股份有限公司 | Anti-mite and antibacterial cow leather mat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114107578A (en) * | 2021-11-23 | 2022-03-01 | 重庆隆发皮革制品有限责任公司 | Antiviral cow leather mat and processing method thereof |
| CN115612755A (en) * | 2022-08-31 | 2023-01-17 | 湖南梦洁家纺股份有限公司 | Zeolite-tanned probiotic cow leather mat and preparation method thereof |
| CN115627303A (en) * | 2022-08-31 | 2023-01-20 | 湖南梦洁家纺股份有限公司 | Cow leather mat antibacterial treatment liquid and cow leather mat antibacterial treatment method |
| CN115627303B (en) * | 2022-08-31 | 2023-10-27 | 湖南梦洁家纺股份有限公司 | Antibacterial treatment liquid and antibacterial treatment method for cowhide mat |
| CN115612755B (en) * | 2022-08-31 | 2023-10-27 | 湖南梦洁家纺股份有限公司 | Zeolite tanning probiotic cow leather mat and preparation method thereof |
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Application publication date: 20210813 |