CN109730496B - Goose down-based expanded silk floss quilt and preparation method thereof - Google Patents
Goose down-based expanded silk floss quilt and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an expanded silk floss quilt based on goose down and a preparation method thereof, comprising the following steps: adding the mixed solution of the turmeric extract, acetic acid and carboxymethyl cellulose into the degummed fibroin fiber solution, carrying out ultrasonic treatment, adding polyurea formaldehyde and selenocysteine hydrochloride, and carrying out ultrasonic treatment; preparing silk with holes into a silk floss sheet, and then soaking the silk floss sheet in an amino polyethylene glycol aqueous solution to obtain a treated silk floss sheet; placing the treated silk floss sheet into a rotary closed container with a rupture membrane for swelling to obtain a wet swelling silk floss sheet; dehydrating the expanded wet silk floss sheet, manually loosening and drying to obtain an expanded dry silk floss sheet; and combining and sewing the expanded dry silk floss piece and the treated goose down to obtain the expanded silk floss quilt. The invention successfully prepares the porous bulked tussah silk floss sheet with excellent wearability, has good antibacterial property and has practical positive significance.
Description
Technical Field
The invention relates to a preparation method of silk floss, in particular to an expanded silk floss quilt based on goose down and a preparation method thereof.
Background
Along with the improvement of living standard of people, people increasingly advocate and return to nature, the consumption of pure natural silk floss quilt is increased sharply, and the consumption market is expanded year by year. The silk wadding quilt is made of various real silks, wherein the silk wadding quilt made of the porous bulked real silk has more excellent wearing performances such as elasticity, heat retention, softness and the like compared with the common silk wadding quilt. The porous bulked real silk is silk with a porous structure in silk fibers, and the porous structure can form a plurality of micro spaces for storing air and can store a large amount of static air, so that the silk has good heat retention property, good air permeability and moisture permeability, and is widely concerned and deeply researched.
Goose down is mostly used for warming after being filled in certain east and west sides and is divided into down and hair pieces, the down mainly refers to the down under the belly of the goose, the hair pieces can carry stems, and in two years, the popularization rate of the goose down quilt on the market is higher and higher, but the goose down quilt is uneven in quality; more importantly, the goose down is hygroscopic, which makes the product easy to produce bacteria.
The existing preparation method of the expanded yarn has poor effect, needs a large amount of chemical reagents and does not accord with the theme of green environmental protection. Therefore, the development of the expanded silk floss quilt and the preparation method thereof have positive practical significance.
Disclosure of Invention
The invention aims to provide an expanded silk floss quilt based on goose down and a preparation method thereof, so as to obtain the expanded silk floss quilt with excellent performance.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a preparation method of an expanded silk floss quilt based on goose down comprises the following steps:
(1) degumming the cleaned silk at high temperature and high pressure to obtain a degummed fibroin fiber solution;
(2) adding a mixed solution of a turmeric extract, acetic acid and carboxymethyl cellulose into a degummed fibroin fiber solution, carrying out ultrasonic treatment for 2-3 hours, adding polyurea formaldehyde and selenocysteine hydrochloride, and carrying out ultrasonic treatment for 1-1.5 hours; then dehydrating and drying in the sun to obtain the treated silk;
the chemical structural formula of the selenocysteine hydrochloride is as follows:
(3) heating the treated silk at 160 ℃ for 40 seconds, and then heating at 200 ℃ for 25 seconds to obtain the silk with holes; preparing silk with holes into a silk floss sheet, and then soaking the silk floss sheet in an amino polyethylene glycol aqueous solution to obtain a treated silk floss sheet;
(4) placing the treated silk floss sheet into a rotary closed container with a rupture membrane for swelling to obtain a wet swelling silk floss sheet;
(5) dehydrating the expanded wet silk floss sheet, manually loosening and drying to obtain an expanded dry silk floss sheet;
(6) cleaning goose down with water, spraying the treatment solution, standing at 95 deg.C and 75% humidity for 30min, spraying the enhancement solution, standing at 95 deg.C and 75% humidity for 10 min, and vacuum drying at 90 deg.C to obtain treated goose down; the spraying liquid comprises water, trimethylsilanol and water-soluble polyester in a mass ratio of 100: 8: 5; the enhancing liquid comprises water, trimethylsilanol and water-soluble polyester with the mass ratio of 100: 5: 2;
(7) and combining and sewing the expanded dry silk floss piece and the treated goose down to obtain the expanded silk floss quilt.
A goose down based expanded silk quilt is prepared by the following steps:
(1) degumming the cleaned silk at high temperature and high pressure to obtain a degummed fibroin fiber solution;
(2) adding a mixed solution of a turmeric extract, acetic acid and carboxymethyl cellulose into a degummed fibroin fiber solution, carrying out ultrasonic treatment for 2-3 hours, adding polyurea formaldehyde and selenocysteine hydrochloride, and carrying out ultrasonic treatment for 1-1.5 hours; then dehydrating and drying in the sun to obtain the treated silk;
the chemical structural formula of the selenocysteine hydrochloride is as follows:
(3) heating the treated silk at 160 ℃ for 40 seconds, and then heating at 200 ℃ for 25 seconds to obtain the silk with holes; preparing silk with holes into a silk floss sheet, and then soaking the silk floss sheet in an amino polyethylene glycol aqueous solution to obtain a treated silk floss sheet;
(4) placing the treated silk floss sheet into a rotary closed container with a rupture membrane for swelling to obtain a wet swelling silk floss sheet;
(5) dehydrating the expanded wet silk floss sheet, manually loosening and drying to obtain an expanded dry silk floss sheet;
(6) cleaning goose down with water, spraying the treatment solution, standing at 95 deg.C and 75% humidity for 30min, spraying the enhancement solution, standing at 95 deg.C and 75% humidity for 10 min, and vacuum drying at 90 deg.C to obtain treated goose down; the spraying liquid comprises water, trimethylsilanol and water-soluble polyester in a mass ratio of 100: 8: 5; the enhancing liquid comprises water, trimethylsilanol and water-soluble polyester with the mass ratio of 100: 5: 2;
(7) and combining and sewing the expanded dry silk floss piece and the treated goose down to obtain the expanded silk floss quilt.
In the technical scheme, the pressure of the high-temperature high-pressure degumming is 0.15-0.3 MPa, the temperature is 110-135 ℃, and the degumming time is 10-20 minutes.
In the technical scheme, silk is used as a raw material, impurities are removed, rinsing is carried out, and water is added for soaking for at least 30min, wherein the bath ratio is 10-20: 1; then dehydrating and finishing the cleaning.
In the technical scheme, the mass ratio of the degummed fibroin fiber, the turmeric extract, the acetic acid, the carboxymethyl cellulose, the polyurea formaldehyde and the selenocysteine hydrochloride is 100: 12: 10: 8: 5.
In the technical scheme, the mass concentration of the degummed silk fibroin fiber solution is 75-78%, and the reactivity of the treatment reagent and the silk fibroin fiber can be improved.
In the technical scheme, the mass ratio of the silk floss sheet to the amino polyethylene glycol is 100: 15, so that the silk floss sheet is soft and smooth and compatible, and the pores are uniform during expansion, and the pores are prevented from being diffused too fast.
In the technical scheme, when the puffing is carried out, the saturated steam pressure in the closed container is 0.08 Mpa; the closed container rotates at 15 r/min; when the saturated steam pressure in the closed container is increased to 0.5Mpa, the rupture disk is ruptured.
In the technical scheme, the drying is carried out at 185 ℃ for 30 seconds and then at 105 ℃ for 2 minutes; the holes of the silk floss sheet are expanded by higher temperature, and then the moisture is removed at low temperature, thereby not only achieving the drying effect, but also avoiding the residual of organic volatile matters, and improving the fluffiness of the silk floss quilt.
In the technical scheme, the water-soluble polyester is an existing product, and the water-soluble polyester and trimethylsilanol are used as modification components to improve the surface properties of the goose down, such as hydrophobicity and fluffiness, and prevent mutual adhesion; the invention adopts the high-concentration spraying liquid for treatment and then uses the low-concentration enhancing liquid for treatment, thereby improving the treatment uniformity and stability; the reaction uniformity of the treating agent on the surface of the goose down can be improved by high-temperature and high-humidity treatment, and the problem of uneven reaction caused by direct drying is avoided; vacuum drying is used to ensure the drying effect.
The expanded silk floss quilt obtained according to the preparation method; the volume ratio of the expanded dry silk floss piece to the treated goose down is 100: 25, the goose down can increase the gap of the silk floss quilt and simultaneously provide certain heat preservation, and the expanded dry silk floss piece is preferably wrapped around the treated goose down.
In the above, the step (2) is used for forming a coating on the surface of silk to make the silk have antibacterial property and keep warm, and is a method using natural green antibacterial agent; the carboxymethyl cellulose may improve the adhesion of turmeric extract and other compounds to the surface of the silk floss sheet. The polyurea formaldehyde can provide porous performance, a certain small hole can be formed on the surface of the silk fibroin fiber by matching with the selenocysteine hydrochloride and the treatment process in the step (3), the preparation and the mechanical property of the silk floss sheet are not influenced, and the pore-forming and the hole expanding are performed simultaneously during the expansion, so that the technical effect far superior to that brought by pure expansion is achieved. The dosage is controlled, on one hand, the influence on the fiber performance is avoided, and on the other hand, a product with excellent antibacterial property, mechanical property and porous property can be obtained.
The tussah silk floss piece is put into a rotary closed container with a bursting membrane, then high-pressure saturated steam is introduced into the container, the pressure of the container is kept for a certain period of time, under the action of the high-temperature and high-pressure saturated steam, the silk fibroin fiber of the tussah silk floss piece begins to be rapidly converted into a swelling stage from swelling, when sudden pressure reduction occurs, the pressure of the tussah silk floss piece is instantly reduced from high pressure to normal pressure, the accumulated energy of the silk fiber is promoted to be suddenly released, the interior of the silk fiber is enabled to generate a porous structure, and the silk fiber is swelled and increased in volume, so that the purpose of swelling is achieved.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention has positive practical significance, and experiments prove that the porous bulked tussah silk floss quilt obtained by the invention has better bulkiness and heat preservation rate, the antibacterial rate is also greatly improved, and the wearability is greatly improved.
2. The raw materials added in the preparation process are safe, and the preparation method is beneficial to preparing household products.
3. The invention ultrasonic-treats the silk in the mixed solution of turmeric extract, acetic acid and carboxymethyl cellulose, so that the silk has good antibacterial property, and is a method using natural green antibacterial agent.
4. The invention treats the goose down for the first time, so that the goose down has good surface performance, and simultaneously keeps the advantages of keeping the goose down warm and fluffy.
5. The preparation method is simple, has low cost and good application prospect.
Drawings
FIG. 1 is a schematic view of the combination of an expanded dry silk floss sheet and treated goose down;
wherein, 1 is an expanded dry silk floss piece, and 2 is treated goose down.
Detailed Description
The invention is further described below with reference to the following examples:
example one
A preparation method of an expanded silk floss quilt comprises the following steps:
(1) taking tussah silk as a raw material, removing impurities, rinsing, adding water, and soaking for 50min at a bath ratio of 15: 1; then dehydrating and finishing cleaning; degumming the cleaned silk at high temperature and high pressure; after degumming, discharging the degumming silk cellulose solution from the reaction kettle; the pressure of high-temperature high-pressure degumming is 0.2MPa, the temperature is 125 ℃, and the degumming time is 15 minutes; the mass concentration of the degummed silk fibroin fiber solution is 75 percent;
(2) adding a mixed solution of turmeric extract, acetic acid and carboxymethyl cellulose into the degummed silk fibroin fiber solution, carrying out ultrasonic treatment for 2 hours, adding polyurea formaldehyde and selenocysteine hydrochloride, and carrying out ultrasonic treatment for 1 hour; then dehydrating and drying in the sun to obtain the treated silk; the mass ratio of the degummed silk fiber, the turmeric extract, the acetic acid, the carboxymethyl cellulose, the polyurea formaldehyde and the selenocysteine hydrochloride is 100: 12: 10: 8: 5;
the chemical structural formula of the selenocysteine hydrochloride is as follows:
(3) heating the treated silk at 160 ℃ for 40 seconds, and then heating at 200 ℃ for 25 seconds to obtain the silk with holes; preparing silk with holes into a silk floss sheet by a conventional method, and then soaking the silk floss sheet in an amino polyethylene glycol aqueous solution to obtain a treated silk floss sheet; the mass ratio of the silk floss sheet to the amino polyethylene glycol is 100: 15;
(4) placing the treated silk floss sheet into a rotary closed container with a rupture membrane for swelling to obtain a swelling wet silk floss quilt; when puffing, the saturated steam pressure in the closed container is 0.08 Mpa; the closed container rotates at 15 r/min; when the saturated steam pressure in the closed container is increased to 0.5Mpa, the rupture disk is ruptured; the rupture membrane arranged on the rupture port cover of the closed container is ruptured, the silk floss piece is suddenly decompressed instantly and is subjected to air explosion, and then the rupture port is punched, so that the silk is expanded, and silk fibers are porous;
(5) dehydrating the expanded wet silk floss sheet, manually loosening and drying to obtain an expanded dry silk floss sheet; the drying is carried out for 30 seconds at 185 ℃ and then for 2 minutes at 105 ℃;
(6) cleaning goose down with water, spraying the treatment solution, standing at 95 deg.C and 75% humidity for 30min, spraying the enhancement solution, standing at 95 deg.C and 75% humidity for 10 min, and vacuum drying at 90 deg.C to obtain treated goose down; the spraying liquid comprises water, trimethylsilanol and water-soluble polyester in a mass ratio of 100: 8: 5; the enhancing liquid comprises water, trimethylsilanol and water-soluble polyester with the mass ratio of 100: 5: 2;
(7) combining the expanded dry silk floss piece and the treated goose down, and sewing by conventional method to obtain the expanded silk floss quilt, wherein the treated goose down is wrapped by the expanded dry silk floss piece at four sides, and referring to figure 1, the volume ratio of the expanded dry silk floss piece to the treated goose down is 100: 25, and the volume is the total volume.
The porosity and diameter of the silk fiber and single fiber prepared by the invention are measured and compared with the common tussah silk, and the results are shown in the following table:
the prepared expanded filament has single fiber void ratio of 26.32% without adding the polyureaformaldehyde; and (3) directly preparing a silk floss sheet without preparing the silk with holes, wherein the single fiber void ratio of the prepared expanded silk floss quilt is 28.56 percent.
In addition, the mechanical properties of tussah silk were also measured and the results are shown in the following table:
the results show that the obtained expanded silk has higher breaking strength than common tussah silk, the core technology for developing porous tussah silk is realized due to the crosslinking effect of polyethylene glycol and a turmeric extract, silk fiber is high in elasticity, and the initial modulus is an indirect index for measuring the softness of the silk fiber, so that the tussah silk is easy to deform and has better softness than the common tussah silk. The breaking strength is 2.8 CN/dtex without adding amino polyethylene glycol; the breaking strength is 3.0 CN/dtex without adding selenocysteine hydrochloride, and the bacteriostasis rate of the prepared expanded dry silk floss sheet is 93.56 percent.
Before and after treatment, the water contact angles of the goose down are respectively 132.8 degrees and 152.2 degrees, and the error of the five-point test method is less than 0.5 percent; if the enhancement liquid is not sprayed after the treatment liquid is sprayed, the water contact angle of the goose down is 146.1 degrees; if the goose down is heat treated under the conventional humidity after being sprayed, the water contact angle of the goose down is 142.3 degrees, and the error of a five-point (four corners + center) test method is about 3 percent.
Meanwhile, the wearability of the silk floss quilt prepared by the invention is also considered and compared with the common tussah silk, and the result is shown in the following table:
if the mixture is dried at 105 ℃ for 3 minutes, the bulk is 40 cm3(ii)/g; if no goose down is added, the heat transfer coefficient is 1.271w/m2DEG C; the porous tussah silk floss quilt has better bulkiness and heat preservation rate than the common tussah silk floss quilt, the bacteriostasis rate is greatly improved, organic volatile matters are not detected, the wearability is greatly improved, and the porous tussah silk floss quilt has remarkable progress.
Claims (3)
1. A preparation method of an expanded silk floss quilt based on goose down comprises the following steps:
(1) degumming the cleaned silk at high temperature and high pressure to obtain a degummed fibroin fiber solution; the pressure of the high-temperature high-pressure degumming is 0.15-0.3 MPa, the temperature is 110-135 ℃, and the degumming time is 10-20 minutes;
(2) adding a mixed solution of a turmeric extract, acetic acid and carboxymethyl cellulose into a degummed fibroin fiber solution, carrying out ultrasonic treatment for 2-3 hours, adding polyurea formaldehyde and selenocysteine hydrochloride, and carrying out ultrasonic treatment for 1-1.5 hours; then dehydrating and drying in the sun to obtain the treated silk; the mass ratio of the degummed silk fiber, the turmeric extract, the acetic acid, the carboxymethyl cellulose, the polyurea formaldehyde and the selenocysteine hydrochloride is 100: 12: 10: 8: 5; the mass concentration of the degummed silk fibroin fiber solution is 75-78%;
the chemical structural formula of the selenocysteine hydrochloride is as follows:
(3) heating the treated silk at 160 ℃ for 40 seconds, and then heating at 200 ℃ for 25 seconds to obtain the silk with holes; preparing silk with holes into a silk floss sheet, and then soaking the silk floss sheet in an amino polyethylene glycol aqueous solution to obtain a treated silk floss sheet; the mass ratio of the silk floss sheet to the amino polyethylene glycol is 100: 15;
(4) placing the treated silk floss sheet into a rotary closed container with a rupture membrane for swelling to obtain a wet swelling silk floss sheet; when puffing, the saturated steam pressure in the closed container is 0.08 Mpa; the closed container rotates at 15 r/min; when the saturated steam pressure in the closed container is increased to 0.5Mpa, the rupture disk is ruptured;
(5) dehydrating the expanded wet silk floss sheet, manually loosening and drying to obtain an expanded dry silk floss sheet; the drying is carried out for 30 seconds at 185 ℃ and then for 2 minutes at 105 ℃;
(6) cleaning goose down with water, spraying the treatment solution, standing at 95 deg.C and 75% humidity for 30min, spraying the enhancement solution, standing at 95 deg.C and 75% humidity for 10 min, and vacuum drying at 90 deg.C to obtain treated goose down; the spraying liquid comprises water, trimethylsilanol and water-soluble polyester in a mass ratio of 100: 8: 5; the enhancing liquid comprises water, trimethylsilanol and water-soluble polyester with the mass ratio of 100: 5: 2;
(7) and combining and sewing the expanded dry silk floss piece and the treated goose down to obtain the expanded silk floss quilt.
2. The preparation method according to claim 1, wherein silk is used as a raw material, impurities are removed, rinsing is carried out, and then water is added to soak for at least 30min, wherein the bath ratio is 10-20: 1; then dehydrating and finishing the cleaning.
3. The method of claim 1, wherein the expanded dry silk floss sheet to goose down is in a volume ratio of 100: 25.
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| CN101543366A (en) * | 2009-04-27 | 2009-09-30 | 苏州大学 | Porous and bulked tussah silk floss quilt and preparation method thereof |
| CN104073907B (en) * | 2014-06-06 | 2016-05-11 | 江苏鹰翔化纤股份有限公司 | A kind of polyester fiber and preparation method thereof |
| CN206173486U (en) * | 2016-11-04 | 2017-05-17 | 六安市皖西羽绒有限公司 | Washing machine for downs |
| CN106854516A (en) * | 2017-01-03 | 2017-06-16 | 长沙协浩吉生物工程有限公司 | It is a kind of except formaldehyde infantile clothes machine-wash liquid compound method |
| CN108823647A (en) * | 2018-06-08 | 2018-11-16 | 柳桥集团有限公司 | A kind of waterproof down method for processing after |
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