CN113564932A - Method for removing fishy smell of duck down - Google Patents
Method for removing fishy smell of duck down Download PDFInfo
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- CN113564932A CN113564932A CN202110965289.0A CN202110965289A CN113564932A CN 113564932 A CN113564932 A CN 113564932A CN 202110965289 A CN202110965289 A CN 202110965289A CN 113564932 A CN113564932 A CN 113564932A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M19/00—Treatment of feathers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Detergent Compositions (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
The invention relates to a method for removing fishy smell of duck down, which belongs to the technical field of duck down treatment and comprises the following steps: (1) dust removal and degreasing: soaking the duck down in warm alkaline water, and performing dust removal and first degreasing; (2) soaking and softening: soaking duck down in water solution for softening; (3) catalytic deodorization: dewatering duck down, soaking the duck down in a protease solution, performing secondary degreasing by using protease catalysis, and removing fishy smell of the duck down; (4) soaking and sterilizing: dewatering duck down, soaking in the aqueous solution containing tartaric acid and silver-carrying antibacterial agent, and sterilizing; (5) drying and storing: and (5) dehydrating, drying and packaging the sterilized duck down, and then sending the duck down into a down bin for storage. According to the invention, through twice degreasing, the fishy smell of the duck down can be completely removed, and through the sterilization operation, the antibacterial and bacteriostatic functions are added to the duck down.
Description
Technical Field
The invention belongs to the technical field of duck down treatment, and particularly relates to a method for removing fishy smell of duck down.
Background
The duck down is one of the main sources of the duck down in the duck down product, and the duck is a omnivorous animal, so that the duck has fishy smell, and the feather of the duck also has the fishy smell due to the fact that the fishy smell permeates into pores. In the collecting process of the duck down, because the duck subcutaneous fat is too thick, the feather is not easy to pull out, and the duck skin is coated with industrial rosin and asphalt, so that part of the industrial rosin and asphalt are stained on the duck down and cannot be removed and made into a down product. In the processing process of the duck down, as the chemical composition of the duck down is protein and is accompanied with animal fat, impurities and bacteria can not be completely eliminated even though the duck down is repeatedly degreased and cleaned. Therefore, the duck down product is easy to generate bacteria, grow mildews and emit peculiar smell under the muggy and humid conditions. The current methods for solving these problems are two of the following: one method is as follows: degreasing duck down, cleaning, drying, and sterilizing with high-temperature steam or ethylene oxide. The effect of such disinfection is temporary, however, and can only be maintained for a short period of time. The other method is as follows: after the duck down is cleaned and dried, certain chemical agents, such as PCP, are added, but the safety and environmental protection of the chemical agents are always difficult to solve. Thus, a method for removing the fishy smell of duck down is proposed.
Disclosure of Invention
The invention aims to solve the problems and provide a reasonably designed method for removing the fishy smell of duck down.
The invention realizes the purpose through the following technical scheme:
the invention provides a method for removing fishy smell of duck down, which comprises the following steps:
(1) dust removal and degreasing: soaking the duck down in warm alkaline water, performing dust removal and first degreasing, and then dehydrating;
(2) soaking and softening: soaking the duck down subjected to the step (1) in an aqueous solution for softening;
(3) catalytic deodorization: dewatering the duck down subjected to the step (2), soaking the duck down in a protease solution, performing secondary degreasing by using protease catalysis, and removing the fishy smell of the duck down;
(4) soaking and sterilizing: dehydrating the duck down subjected to the step (3), and soaking the dehydrated duck down in an aqueous solution added with tartaric acid and a silver-loaded antibacterial agent again for sterilization;
(5) drying and storing: and (5) dehydrating, drying and packaging the sterilized duck down, and then sending the duck down into a down bin for storage.
As a further improvement of the invention, the drying step in the step (5) comprises a fragrance retaining treatment: putting the duck down into a steam type dryer, and taking steam of a mixture of natural plant hydrolat and water as steam for drying.
As a further improvement of the invention, the drying step in the step (5) comprises a hydrophobic treatment: the steam of the mixed solution of isopropyl myristate, liquid detergent and water is adopted as the steam for drying in the duck down put into the steam type dryer.
As a further improvement of the invention, the hydrophobic treatment is carried out in an environment of 1.4-1.7 MPa.
As a further improvement of the present invention, the preparation process of the mixed solution of isopropyl myristate, liquid detergent and water is as follows: mixing isopropyl myristate and liquid detergent according to a mass ratio of 1: 2, mixing the two mixtures according to the ratio of 1: (7-9) adding to the water for steam.
As a further improvement of the invention, the warm alkaline water in the step (1) is specifically alkaline water with the temperature of 40-50 ℃ and the concentration of sodium hydroxide of 10% -12%.
As a further improvement of the invention, the aqueous solution in the step (2) is ethanol and water according to a volume ratio of 1: 4, and soaking for 30-40 min.
As a further improvement of the invention, in the step (3), the volume ratio of the protease to the water in the protease solution is 1: 10, the catalysis time is 40-60 min.
As a further improvement of the invention, in the step (4), the concentration of the fruit acid in the aqueous solution is 20-40%, and the volume ratio of the silver-carrying antibacterial agent to the aqueous solution is 1: 60, the degerming time is 40-60 min.
As a further improvement of the invention, stirring is required in the steps (1) to (4), and the stirring speed is 40-50 r/min.
The invention has the beneficial effects that: according to the method for removing the fishy smell of the duck down, grease on feather branches and feather pieces of the duck down is removed through twice degreasing and first alkali water degreasing, secondary degreasing is performed after soaking and softening, the situations that the feather branches are hardened and the interior of the duck down is sealed due to the alkali water can be compensated, then fiber matrixes inside the feather branches are removed through protease, and the grease inside the feather branches is decomposed, so that the grease in the duck down can be removed in all directions, the fishy smell of the duck down can be completely removed, the antibacterial and bacteriostatic functions are added to the duck down through the sterilization operation, all additives in the method have no side effect on a human body, and the performance of the treated duck down is more excellent.
Detailed Description
The present application is described in further detail below, and it should be noted that the following detailed description is provided for illustrative purposes only, and is not intended to limit the scope of the present application, which is defined by the appended claims.
Example 1
The method for removing the fishy smell of the duck down comprises the following steps:
(1) soaking the duck down in an alkaline water tank containing 10% -12% of sodium hydroxide at 40-50 ℃, removing dust and degreasing for the first time for 10-20min, and then fishing out the duck down for dewatering;
(2) soaking the duck down subjected to the step (1) in a softening tank, wherein the softening tank contains ethanol and water according to the volume ratio of 1: 4 mixing to form an aqueous solution, softening the duck down in the aqueous solution for 30-40min, and then fishing out the duck down for dehydration;
(3) soaking the duck down subjected to the step (2) in a catalytic pool, wherein the catalytic pool contains protease and water in a volume ratio of 1: 10, catalyzing by protease for 40-60min, removing fibrous interstitium in the feather under the condition of not damaging duck down fibers, decomposing internal grease, and performing secondary degreasing to remove fishy smell of the duck down;
(4) and (3) dehydrating the duck down obtained in the step (3), soaking the dehydrated duck down in a sterilizing pond, and sterilizing the dehydrated duck down in an aqueous solution containing fruit acid and a silver-loaded antibacterial agent for 40-60min, wherein the concentration of the fruit acid in the aqueous solution in the sterilizing pond is 20%, and the volume ratio of the usage amount of the silver-loaded antibacterial agent to the aqueous solution is 1: 60, adding a solvent to the mixture;
(5) dewatering the duck down sterilized in the step (3), putting into a steam type dryer, enabling the duck down to be stained with fragrance through primary drying, adopting steam of a mixture of natural plant hydrolat and water as steam for drying, enabling the duck down to have a water locking and draining function through secondary drying, adopting steam of a mixed solution of isopropyl myristate, liquid detergent and water as the steam for drying, wherein the preparation process of the mixed solution of the isopropyl myristate, the liquid detergent and the water is as follows: mixing isopropyl myristate and liquid detergent according to a mass ratio of 1: 2, mixing the two mixtures according to the ratio of 1: 7, adding the mixture into water for steam, performing primary drying and secondary drying under the environment of 1.4-1.7MPa, and drying and packaging for two times, and then sending the obtained product into a fluff bin for storage.
Example 2
The method for removing the fishy smell of the duck down comprises the following steps:
(1) the steps (2), (3) and (5) are the same as example 1, wherein the concentration of the fruit acid in step (4) is 30%, and the rest is the same as example 1.
Example 3
The method for removing the fishy smell of the duck down comprises the following steps:
(1) the steps (2), (3) and (5) are the same as example 1, wherein the concentration of the fruit acid in step (4) is 40%, and the rest is the same as example 1.
Example 4
The method for removing the fishy smell of the duck down comprises the following steps:
(1) the steps (2), (3) and (4) are the same as the step (1), wherein in the step (5): the process for preparing the mixed solution of isopropyl myristate, liquid detergent and water is as follows: mixing isopropyl myristate and liquid detergent according to a mass ratio of 1: 2, mixing the two mixtures according to the ratio of 1: 8 was added to the water for steam, and the rest was the same as in example 1.
Example 5
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (3) and (4) are the same as the step (4), wherein in the step (5): the process for preparing the mixed solution of isopropyl myristate, liquid detergent and water is as follows: mixing isopropyl myristate and liquid detergent according to a mass ratio of 1: 2, mixing the two mixtures according to the ratio of 1: 9 was added to the water for steam, as in example 4.
Example 6
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (3) and (4) are the same as the step (4), wherein in the step (5), the first drying step is not carried out.
Example 7
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (3) and (4) are the same as the step (4), wherein in the step (5), the second drying step is not carried out.
Comparative example 1
The method for removing the fishy smell of the duck down comprises the following steps: except for step (2), the other steps (1), (3), (4) and (5) are the same as example 4.
Comparative example 2
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (3), (4) and (5) are the same as example 4, wherein ethanol is not added to the aqueous solution in step (2), and the rest is the same as example 4.
Comparative example 3
The method for removing the fishy smell of the duck down comprises the following steps: except for the step (3), the other steps (1), (2), (4) and (5) are the same as those in example 4.
Comparative example 4
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (4) and (5) are the same as in example 4, wherein the aqueous solution in step (3) is not added with fruit acid, and the rest is the same as in example 4.
Comparative example 5
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (4) and (5) are the same as in example 4, wherein the aqueous solution in step (3) is not added with a silver-carrying antibacterial agent, and the rest is the same as in example 4.
Comparative example 6
The method for removing the fishy smell of the duck down comprises the following steps: (1) the steps (2), (4) and (5) are the same as in example 4, wherein the concentration of the fruit acid in the aqueous solution in the step (3) is 50%, and the rest is the same as in example 4.
The duck down treated by the methods for removing the fishy smell of the duck down according to examples 1 to 7 and comparative examples 1 to 5 was subjected to the following tests after two months of storage, respectively:
1. and (3) manually detecting aroma and fishy smell of the duck down before and after storage, wherein the duck down has obvious aroma which is recorded as ++, light aroma which is recorded as +, no aroma which is recorded as + -, light fishy smell which is recorded as-, and obvious fishy smell which is recorded as- -. (ii) a
2. Carrying out antibacterial rate detection on the duck down before and after treatment, putting the stored duck down into a culture medium, carrying out colony culture for 24h, and embodying antibacterial and bacteriostatic effects through the number of colonies;
3. burning the same mass of the duck down, and measuring the mass of black condensation-free ash after burning;
4. the method comprises the following steps of (1) taking the same mass of duck down, and reflecting the change of the water content in the duck down through the change of the mass by adopting a drying method;
5. and (3) unpacking the stored duck down, putting the duck down into a ventilation container with height scales, wherein the initial height is 10cm, and recording the height scales of the duck down which are fluffy after normal ventilation and a temperature environment are kept for 24 hours.
TABLE 1 Duck feather treated by the method for removing fishy smell of Duck feather test 1-5 results
Note: in the change of the water content rate, + represents a humidity environment, -represents a dry environment.
As can be seen from the results in the table above, the effect of removing the fishy smell of the duck down is remarkable, the fragrance can be kept for a long time when the fragrance is added, and the comparison example 2 shows that after the treatment in the step (2), the degreasing efficiency is increased, the residual industrial rosin and asphalt of the duck down can be removed, the comparison example 4 and the examples 1 to 7 show that the use of the fruit acid has the function of softening the duck down, the fluffy effect of the duck down is increased, the effect of removing the grease can be increased by using the protease solution, the first degreasing and the softening of the duck down, the effect of removing the fishy smell in percentage is achieved, the example 7 shows that the second drying is adopted, the bacteriostatic effect of the duck down can be increased, and the water locking and retaining functions of the duck down can be improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A method for removing fishy smell of duck down is characterized by comprising the following steps:
(1) dust removal and degreasing: soaking the duck down in warm alkaline water, performing dust removal and first degreasing, and then dehydrating;
(2) soaking and softening: soaking the duck down subjected to the step (1) in an aqueous solution for softening;
(3) catalytic deodorization: dewatering the duck down subjected to the step (2), soaking the duck down in a protease solution, performing secondary degreasing by using protease catalysis, and removing the fishy smell of the duck down;
(4) soaking and sterilizing: dehydrating the duck down subjected to the step (3), and soaking the dehydrated duck down in an aqueous solution added with tartaric acid and a silver-loaded antibacterial agent again for sterilization;
(5) drying and storing: and (5) dehydrating, drying and packaging the sterilized duck down, and then sending the duck down into a down bin for storage.
2. The method for removing fishy smell of duck down according to claim 1, wherein the drying step in the step (5) comprises a fragrance leaving treatment: putting the duck down into a steam type dryer, and taking steam of a mixture of natural plant hydrolat and water as steam for drying.
3. The method for removing fishy smell of duck down as claimed in claim 2, wherein said drying step in step (5) comprises a hydrophobic treatment: the steam of the mixed solution of isopropyl myristate, liquid detergent and water is adopted as the steam for drying in the duck down put into the steam type dryer.
4. The method for removing fishy smell of duck down according to claim 3, wherein said hydrophobic treatment is performed in an environment of 1.4-1.7 MPa.
5. The method for removing fishy smell of duck down according to claim 3, wherein the mixed solution of isopropyl myristate, liquid detergent and water is prepared by the following steps: mixing isopropyl myristate and liquid detergent according to a mass ratio of 1: 2, mixing the two mixtures according to the ratio of 1: (7-9) adding to the water for steam.
6. The method for removing the fishy smell of the duck down according to claim 1, wherein the warm alkaline water in the step (1) is specifically alkaline water with the temperature of 40-50 ℃ and the concentration of sodium hydroxide of 10% -12%.
7. The preparation method of the method for removing the fishy smell of the duck down according to claim 6, wherein the water solution in the step (2) is ethanol and water according to a volume ratio of 1: 4, and soaking for 30-40 min.
8. The method for preparing the method for removing the fishy smell of the duck down according to claim 1, wherein the volume ratio of the protease to the water in the protease solution in the step (3) is 1: 10, the catalysis time is 40-60 min.
9. The preparation method of the method for removing the fishy smell of the duck down according to claim 1, wherein the concentration of the fruit acid in the aqueous solution in the step (4) is 20% -40%, and the volume ratio of the silver-loaded antibacterial agent to the aqueous solution is 1: 60, the degerming time is 40-60 min.
10. The preparation method of the method for removing the fishy smell of the duck down according to the claim 1, wherein the stirring is required in the steps (1) to (4), and the stirring speed is 40-50 r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882161A (en) * | 2021-11-15 | 2022-01-04 | 高梵(浙江)信息技术有限公司 | Production method of nano waterproof breathable down feather |
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| US20160222581A1 (en) * | 2015-01-29 | 2016-08-04 | Kwong Lung Enterprise Co., Ltd. | Water repellent down production method and product thereof |
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| CN109371697A (en) * | 2018-11-23 | 2019-02-22 | 合肥巧织纺织科技有限公司 | A kind of degreasing method improving natural feather intensity |
| CN109629238A (en) * | 2018-11-28 | 2019-04-16 | 湖州世轩丝绸进出口有限公司 | A kind of natural cashmere biological enzyme degreasing method |
| CN109652863A (en) * | 2019-01-29 | 2019-04-19 | 波司登羽绒服装有限公司 | The method for removing duck's down peculiar smell |
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- 2021-08-23 CN CN202110965289.0A patent/CN113564932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20160222581A1 (en) * | 2015-01-29 | 2016-08-04 | Kwong Lung Enterprise Co., Ltd. | Water repellent down production method and product thereof |
| CN108035154A (en) * | 2017-11-14 | 2018-05-15 | 六安市皖西羽绒有限公司 | A kind of degerming technique of white duck down degreasing based on bioenzyme washing method |
| CN109371697A (en) * | 2018-11-23 | 2019-02-22 | 合肥巧织纺织科技有限公司 | A kind of degreasing method improving natural feather intensity |
| CN109629238A (en) * | 2018-11-28 | 2019-04-16 | 湖州世轩丝绸进出口有限公司 | A kind of natural cashmere biological enzyme degreasing method |
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| CN113882161A (en) * | 2021-11-15 | 2022-01-04 | 高梵(浙江)信息技术有限公司 | Production method of nano waterproof breathable down feather |
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