A method for treating down to prevent mites and odor

Abstract

The present invention relates to a method for treating down feathers with anti-mite and anti-odor. The method sequentially washes, rinses, dehydrates and dries the down feathers after impurity removal to obtain pre-treated down feathers; the pre-treated down feathers are put into a mixing device, sprayed with a mixture so that the mixture is fully mixed with the down feathers, and naturally cooled after drying; anti-mite and deodorizing particles are sprayed on the naturally cooled down feathers, and vacuum dried, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down feather particles obtained by crushing the naturally cooled down feathers on the outer surface of modified porous ceramic particles. The present invention increases the anti-mite and antibacterial effects of the down feathers by spraying the anti-mite and deodorizing particles on the down feathers, and can make the anti-mite and antibacterial effects of the down feathers decline slowly during long-term use. The modified porous ceramic particles can well absorb the down feather odor, and can make the odor of the down feathers maintain a good level for a long time, and it is not easy to generate and emit odor.

Description

Technical Field

[0001] The invention belongs to the technical field of down processing technology, and in particular relates to an anti-mite and anti-odor processing method for down. Background Art

[0002] Down has a star-like structure, and the down fibers are in the shape of fish scales. It has countless tiny pores and contains a large amount of still air. Since the air conductivity coefficient is the lowest, down has good warmth retention properties. Down is also full of elasticity and feels good against the skin. Therefore, in recent years, down has been widely welcomed by consumers in the clothing and home textile markets.

[0003] However, when wearing and covering, down is easily exposed to the sebum and sweat secreted by the user's skin, providing a good growth environment for mites, thereby nourishing and multiplying more mites. The corpses, secretions and excrement of mites are allergens, which can cause allergic dermatitis, asthma, bronchitis, nephritis, allergic rhinitis and other diseases, seriously endangering human health. In addition, down itself has a certain fishy smell, which can also cause discomfort to users. Therefore, it is very necessary for down to have anti-mite, antibacterial and deodorizing effects.

[0004] In the prior art, the treatment methods for anti-mite, anti-bacterial and anti-odor treatment of down are mostly to wash, rinse and dry the down multiple times, and then spray or soak the down with anti-mite and anti-bacterial liquid and fragrance. The anti-mite and anti-bacterial effect of the down obtained by this treatment method can only be maintained for a short time, and the fishy smell can only be covered by the fragrance for a short time. During long-term use, the anti-mite, anti-bacterial and anti-odor effects of the down will decline quickly. Therefore, after long-term use, the anti-mite and anti-bacterial effects of the down are poor, and it is easy to produce and emit odor. Summary of the invention

[0005] The purpose of the present invention is to provide a method for treating down to prevent mites and odor in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0008] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0009] S2, putting the pretreated down into a mixing device, spraying the mixture so that it is fully mixed with the down, and drying and then cooling naturally;

[0010] S3, spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of the modified porous ceramic particles.

[0011] As a further optimization scheme of the present invention, in step S2, the mixture includes 80-90 parts of antibacterial and anti-mite agent, 5-10 parts of fragrance and 5-15 parts of film-forming agent by weight.

[0012] As a further optimization scheme of the present invention, the porosity of the modified porous ceramic particles is 75% to 90%.

[0013] As a further optimization scheme of the present invention, the modified porous ceramic particles include 55-65 parts of diatomaceous earth, 17-30 parts of clay, 1-3 parts of bentonite, 3-5 parts of kaolin, 5-10 parts of iron powder, and 3-6 parts of carbon powder, by weight.

[0014] As a further optimization scheme of the present invention, the preparation method of the modified porous ceramic particles is specifically as follows:

[0015] S301, diatomaceous earth, clay, bentonite, kaolin, iron powder, and carbon powder are placed in a sintering furnace for sintering, and the obtained porous matrix is ​​cooled for standby use;

[0016] S302, soaking the porous substrate treated in step S301 in a mixed aqueous solution containing hydrochloric acid and oxalic acid for 7 to 15 hours, and then drying and grinding into powder;

[0017] S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and drying to obtain modified porous ceramic particles.

[0018] As a further optimization solution of the present invention, in step S301, the sintering temperature is 520°C to 650°C.

[0019] As a further optimization scheme of the present invention, in step S302, the contents of the components in the aqueous phase mixture are: thickener 0.1wt%~20wt%, hydrochloric acid 6wt%~12wt%, oxalic acid 5wt%~10wt%, and the remainder is deionized water.

[0020] As a further optimization scheme of the present invention, the thickener is one of methyl cellulose and carboxymethyl cellulose.

[0021] The beneficial effects of the present invention are:

[0022] 1) The present invention sprays anti-mite and deodorizing particles on the down, so that the antibacterial and anti-mite agent and the fragrance agent remain on the down for a longer time, thereby increasing the anti-mite and antibacterial effects of the down, and making the anti-mite and antibacterial effects of the down decline slowly during long-term use. The modified porous ceramic particles can well absorb the odor of the down, and the odor of the down can be kept at a good level for a long time, and it is not easy to generate and emit odor;

[0023] 2) In the present invention, iron powder is added during the preparation process of the modified porous ceramic particles to increase the porosity of the modified porous ceramic particles, thereby improving the ability of the modified porous ceramic particles to absorb down odor. DETAILED DESCRIPTION

[0024] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0027] The specific steps are as follows:

[0028] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0029] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 80 parts of an antibacterial and anti-mite agent, 5 parts of a fragrance and 15 parts of a film-forming agent by weight;

[0030] S3. Spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of modified porous ceramic particles, and the mass ratio of the modified porous ceramic particles to the down particles is 1:0.6.

[0031] The preparation method of the modified porous ceramic particles is specifically as follows:

[0032] S301, 55 parts of diatomaceous earth, 30 parts of clay, 2 parts of bentonite, 3 parts of kaolin, 5 parts of iron powder, and 5 parts of carbon powder are placed in a sintering furnace for sintering at a temperature of 580° C. The obtained porous matrix is ​​cooled for standby use;

[0033] S302, soaking the porous substrate treated in step S301 in an aqueous mixture containing hydrochloric acid and oxalic acid for 7 hours, wherein the contents of the components in the aqueous mixture are 12 wt% of thickener, 6 wt% of hydrochloric acid, 5 wt% of oxalic acid, and 77 wt% of deionized water, and then drying and grinding into powder;

[0034] S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and obtaining modified porous ceramic particles after drying, wherein the mass of the antibacterial and anti-mite agent added to every 100 kg of the powdery porous matrix is ​​8 kg, and the porosity of the obtained modified porous ceramic particles is 75%.

[0035] It should be noted that, in this embodiment,

[0036] The weight of the components in the antibacterial and anti-mite agent is: 2% peppermint essential oil, 2% camphor essential oil, 3% wormwood volatile oil, 6% triglycerol monostearate, 5% lauroyl lysine, 10% water-based polyurethane, and the balance is deionized water;

[0037] The fragrance agent is a mixture of gardenia essential oil, clove essential oil and orange essential oil in a mass ratio of 1:1:1;

[0038] The film-forming agent is methyl methacrylate.

[0039] Example 2

[0040] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0041] The specific steps are as follows:

[0042] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0043] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 85 parts of an antibacterial and anti-mite agent, 6 parts of a fragrance and 9 parts of a film-forming agent by weight;

[0044] S3. Spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of modified porous ceramic particles, and the mass ratio of the modified porous ceramic particles to the down particles is 1:0.6.

[0045] The preparation method of the modified porous ceramic particles is specifically as follows:

[0046] S301, 60 parts of diatomaceous earth, 23 parts of clay, 1 part of bentonite, 3 parts of kaolin, 7 parts of iron powder, and 6 parts of carbon powder are placed in a sintering furnace for sintering at a temperature of 600° C. The obtained porous matrix is ​​cooled for standby use;

[0047] S302, soaking the porous substrate treated in step S301 in an aqueous mixture containing hydrochloric acid and oxalic acid for 12 hours, wherein the contents of the components in the aqueous mixture are 15wt% of thickener, 10wt% of hydrochloric acid, 8wt% of oxalic acid, and 67wt% of deionized water, and then drying and grinding into powder;

[0048] S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and obtaining modified porous ceramic particles after drying, wherein the mass of the antibacterial and anti-mite agent added to every 100 kg of the powdery porous matrix is ​​8 kg, and the porosity of the obtained modified porous ceramic particles is 90%.

[0049] It should be noted that, in this embodiment, the antibacterial and anti-mite agent, fragrance agent and film-forming agent used are consistent with those in Example 1.

[0050] Example 3

[0051] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0052] The specific steps are as follows:

[0053] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0054] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 90 parts of an antibacterial and anti-mite agent, 5 parts of a fragrance and 5 parts of a film-forming agent by weight;

[0055] S3. Spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of modified porous ceramic particles, and the mass ratio of the modified porous ceramic particles to the down particles is 1:0.6.

[0056] The preparation method of the modified porous ceramic particles is specifically as follows:

[0057] S301, 65 parts of diatomaceous earth, 17 parts of clay, 2 parts of bentonite, 3 parts of kaolin, 10 parts of iron powder, and 3 parts of carbon powder are placed in a sintering furnace for sintering at a temperature of 650° C. The obtained porous matrix is ​​cooled for standby use;

[0058] S302, soaking the porous substrate treated in step S301 in an aqueous mixture containing hydrochloric acid and oxalic acid for 12 hours, wherein the contents of the components in the aqueous mixture are 20 wt% of thickener, 12 wt% of hydrochloric acid, 10 wt% of oxalic acid, and 58 wt% of deionized water, and then drying and grinding into powder;

[0059] S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and obtaining modified porous ceramic particles after drying, wherein the mass of the antibacterial and anti-mite agent added to every 100 kg of the powdery porous matrix is ​​8 kg, and the porosity of the obtained modified porous ceramic particles is 82%.

[0060] It should be noted that, in this embodiment, the antibacterial and anti-mite agent, fragrance agent and film-forming agent used are consistent with those in Example 1.

[0061] Comparative Example 1

[0062] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0063] The specific steps are as follows:

[0064] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0065] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 85 parts of an antibacterial and anti-mite agent, 6 parts of a fragrance and 9 parts of a film-forming agent by weight;

[0066] It should be noted that, in this embodiment, the antibacterial and anti-mite agent, fragrance agent and film-forming agent used are consistent with those in Example 1.

[0067] Comparative Example 2

[0068] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0069] The specific steps are as follows:

[0070] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0071] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 85 parts of an antibacterial and anti-mite agent, 6 parts of a fragrance and 9 parts of a film-forming agent by weight;

[0072] S3. Spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of granular activated carbon, and the mass ratio of the granular activated carbon to the down particles is 1:0.6.

[0073] It should be noted that in this embodiment, the specific surface area of ​​the granular activated carbon used is 1600m 2 / g;

[0074] The antibacterial and anti-mite agent, fragrance and film-forming agent used are the same as those in Example 1.

[0075] Comparative Example 3

[0076] A method for treating down to prevent mites and odor, the specific steps are as follows:

[0077] The specific steps are as follows:

[0078] S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down;

[0079] S2, putting the pretreated down into a mixing device, spraying a mixture so that it is fully mixed with the down, drying and naturally cooling, wherein the mixture comprises 85 parts of an antibacterial and anti-mite agent, 6 parts of a fragrance and 9 parts of a film-forming agent by weight;

[0080] S3. Spraying anti-mite and deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite and deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of modified porous ceramic particles, and the mass ratio of the modified porous ceramic particles to the down particles is 1:0.6.

[0081] The preparation method of the modified porous ceramic particles is specifically as follows:

[0082] S301, 60 parts of diatomaceous earth, 30 parts of clay, 1 part of bentonite, 3 parts of kaolin, and 6 parts of carbon powder are placed in a sintering furnace for sintering at a temperature of 600° C. The obtained porous matrix is ​​cooled for standby use;

[0083] S302, soaking the porous substrate treated in step S301 in an aqueous mixture containing hydrochloric acid and oxalic acid for 12 hours, wherein the contents of the components in the aqueous mixture are 15wt% of thickener, 10wt% of hydrochloric acid, 8wt% of oxalic acid, and 67wt% of deionized water, and then drying and grinding into powder;

[0084] S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and obtaining modified porous ceramic particles after drying, wherein the mass of the antibacterial and anti-mite agent added to every 100 kg of the powdery porous matrix is ​​8 kg, and the porosity of the obtained modified porous ceramic particles is 60%.

[0085] It should be noted that, in this embodiment, the antibacterial and anti-mite agent, fragrance agent and film-forming agent used are consistent with those in Example 1.

[0086] Performance Testing:

[0087] The down produced according to the above-mentioned Examples 1-3 was tested for anti-mite, antibacterial and deodorizing properties. There were 60 down test samples in each example, and the down test samples in each example were divided into two equal groups, one group was Group A and the other group was Group B. The weight of a single down test sample was 10 g, and the corresponding numbers were Group A1 and Group B1; Group A2 and Group B2; Group A3 and Group B3;

[0088] The down produced according to the above comparative examples 1-3 was tested for anti-mite, antibacterial and deodorizing performance, with 60 down test samples for each comparative example, and each down test sample for each comparative example was divided into two equal groups, one group was group C, and the other group was group D. The weight of a single down test sample was 10 g, and the corresponding labels were group C1, group D1; group C2, group D2; group C3, group D3.

[0089] The anti-mite performance test was carried out on down according to the determination method of GB / T24253-2009. The incubation time of Group A1, Group A2, Group A3, Group C1, Group C2 and Group C3 was 24 hours, and the incubation time of Group B1, Group B2, Group B3, Group D1, Group D2 and Group D3 was 96 hours.

[0090] The antibacterial performance test was carried out on down according to the determination method of "GB / T20944.3-2008 Oscillation Method", in which the oscillation time of Group A1, Group A2, Group A3, Group C1, Group C2, and Group C3 was 24 hours, and the oscillation time of Group B1, Group B2, Group B3, Group D1, Group D2, and Group D3 was 96 hours.

[0091] The anti-odor performance test was carried out on down according to the determination method of GB / T10288-2003, and the odor degree of down was set to 1-9 levels, among which 1-4 levels indicated that the fragrance degree of down decreased in sequence, that is, the down fragrance of level 1 was the heaviest, the down fragrance of level 4 was the lightest, and level 5 indicated that the down was odorless. Levels 6-9 indicated that the odor level of down increased in sequence, that is, level 6 was the lightest down odor, and level 9 was the heaviest down odor. The heat drying time of Group A1, Group A2, Group A3, Group C1, Group C2, and Group C3 was 24h, and the heat drying time of Group B1, Group B2, Group B3, Group D1, Group D2, and Group D3 was 24h, and the heat drying temperature was 30℃ (±2℃).

[0092] The test results are shown in Table 1:

[0093] Table 1

[0094]

[0095] Note: The above data have been verified by variance.

[0096] Experimental conclusion: According to the data in the above table, the down is treated according to the treatment method of Example 2, and the anti-mite and antibacterial effects of the obtained down are the best, and the odor level is also at a good level. By comparing the experimental data of Group A and Group B in Example 2, it can be seen that the anti-mite and antibacterial effects of the down will be reduced during long-term use. Therefore, it can be seen that the down is treated according to the treatment method of Example 2, and the obtained down can maintain good anti-mite and antibacterial effects for a long time, and the odor level of the down can also maintain a good level for a long time. Example 2 is the best solution;

[0097] From the comparison of the experimental data of Example 2 and Comparative Example 1, it can be seen that spraying the anti-mite and deodorizing particles on the down can allow the antibacterial and anti-mite agent and the fragrance agent to remain on the down for a longer time, thereby increasing the anti-mite and antibacterial effects of the down, and can make the anti-mite and antibacterial effects of the down decline more slowly during long-term use;

[0098] By comparing the experimental data of Example 2 and Comparative Example 2, it can be seen that the modified porous ceramic particles in the anti-mite deodorizing particles are replaced with granular activated carbon. The adsorption capacity of granular activated carbon for down odor is much lower than that of porous ceramic particles, and the decay rate is faster. Therefore, the modified porous ceramic particles can well adsorb down odor, and the odor of down can be kept at a good level for a long time, and it is not easy to generate and emit odor;

[0099] By comparing the experimental data of Example 2 and Comparative Example 3, it can be seen that iron powder is added to the modified porous ceramic particles during the treatment process to increase the porosity of the modified porous ceramic particles, thereby improving the ability of the modified porous ceramic particles to adsorb down odor.

[0100] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for treating down to prevent mites and odor, characterized in that: The specific steps are as follows: S1, washing, rinsing, dehydrating and drying the down after impurity removal treatment in sequence to obtain pretreated down; S2, putting the pretreated down into a mixing device, spraying the mixture so that it is fully mixed with the down, and drying and then cooling naturally; The mixture comprises, by weight, 80 to 90 parts of antibacterial and anti-mite agent, 5 to 10 parts of fragrance agent and 5 to 15 parts of film-forming agent; S3, spraying anti-mite deodorizing particles on the down treated in step S2, and vacuum drying, wherein the anti-mite deodorizing particles are prepared by uniformly adhering down particles obtained by crushing the down treated in step S2 to the outer surface of the modified porous ceramic particles; The modified porous ceramic particles include 55-65 parts by weight of diatomaceous earth, 17-30 parts of clay, 1-3 parts of bentonite, 3-5 parts of kaolin, 5-10 parts of iron powder, and 3-6 parts of carbon powder; The porosity of the modified porous ceramic particles is 75% to 90%; The preparation method of the modified porous ceramic particles is specifically as follows: S301, diatomaceous earth, clay, bentonite, kaolin, iron powder, and carbon powder are placed in a sintering furnace for sintering, and the obtained porous matrix is ​​cooled for standby use; In step S301, the sintering temperature is 580°C to 650°C; S302, soaking the porous substrate treated in step S301 in a mixed aqueous solution containing hydrochloric acid and oxalic acid for 7 to 15 hours, and then drying and grinding into powder; S303, ultrasonically dispersing the antibacterial and anti-mite agent into the powdery porous matrix treated in step S302, and drying to obtain modified porous ceramic particles.

2. The method for treating down feathers against mites and odors according to claim 1, characterized in that: In step S302, the contents of the components in the aqueous phase mixture are: 0.1 wt% to 20 wt% thickener, 6 wt% to 12 wt% hydrochloric acid, 5 wt% to 10 wt% oxalic acid, and the remainder is deionized water.

3. The method for treating down feathers against mites and odors according to claim 2, characterized in that: The thickener is one of methyl cellulose and carboxymethyl cellulose.

Images