CN111321584A - Manufacturing process for enhancing softness and heat retention of woolen sweater - Google Patents
Manufacturing process for enhancing softness and heat retention of woolen sweater Download PDFInfo
- Publication number
- CN111321584A CN111321584A CN202010151023.8A CN202010151023A CN111321584A CN 111321584 A CN111321584 A CN 111321584A CN 202010151023 A CN202010151023 A CN 202010151023A CN 111321584 A CN111321584 A CN 111321584A
- Authority
- CN
- China
- Prior art keywords
- wool fibers
- alkali lignin
- silicon dioxide
- nano silicon
- woolen sweater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/08—Organic compounds
- D06M10/10—Macromolecular compounds
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a manufacturing process for enhancing the softness and heat retention of a woolen sweater, which relates to the technical field of textile fabrics, and specifically comprises the following steps: 1) chemically treating alkali lignin to obtain carboxylated alkali lignin; 2) treating the nano silicon dioxide by using carboxylated alkali lignin to prepare pretreated nano silicon dioxide; 3) adding the swelled wool fibers into a dispersion liquid containing pretreated nano silicon dioxide for dipping to obtain pretreated wool fibers; 4) and carrying out plasma surface treatment on the pretreated wool fibers, and then processing and weaving the treated wool fibers to obtain the required woolen sweater. The manufacturing process provided by the invention effectively overcomes the defects of poor wearing comfort and poor heat preservation effect of the woolen sweater in the prior art, improves the wearing experience of people on the woolen sweater, and also meets the requirements of people on heat preservation and comfortable fabrics.
Description
Technical Field
The invention belongs to the technical field of textile fabrics, and particularly relates to a manufacturing process for enhancing the softness and heat retention of a woolen sweater.
Background
The fluff fabric is common winter clothing fabric, and the fibers on the surface of the fluff fabric are loose, so that the aim of increasing the thickness of the fabric and achieving the warm-keeping effect is fulfilled; on the other hand, gaps smaller than those among yarns are formed among the fluff fibers, so that static air can be retained, and a warm-keeping effect is achieved. Therefore, the plush fabric is light and has excellent heat preservation performance, and is especially suitable for being used as the garment fabric in autumn and winter. The cashmere fiber is a thin and curved fiber, which contains a lot of air, can form an air layer, can defend against the invasion of external cold air, keeps the body temperature without reducing, is light in weight, soft and good in toughness, is a natural and precious textile material, and in recent years, cashmere clothing products are more and more favored by consumers in fierce clothing market competition due to the characteristics of comfortable hand feeling, unique color, light and thin texture, good heat preservation and air permeability and the like.
However, cashmere is a thin layer of fine cashmere which grows on the outer skin layer of the goat and covers the root of the goat coarse hair, belongs to rare special animal fibers, is precious and is called soft gold, so the price of cashmere fabric is expensive. Although cashmere fabric is excellent in heat retention, the cost performance of cashmere fabric is low due to high price, and compared with common consumers, the cost performance of cashmere fabric is far inferior to that of wool fabric with poor heat retention. Therefore, it is important to improve the warmth retention property of the wool fabric and enhance the wearing comfort, thereby improving the cost performance and expanding the popularity of the wool fabric in consumers. In the prior art, the heat retention of the wool fabric can be improved by coating a coating with a heat-preserving effect on the surface of the wool fabric. For example, chinese patent CN110685170A discloses a wool keratin/aqueous polyurethane composite emulsion coating agent with a warming function and a preparation method thereof, and discloses that the wool keratin/aqueous polyurethane composite emulsion coating agent is used for coating finishing of cotton fabrics, so that the warming rate of the cotton fabrics can be improved, thereby improving the warming performance of the cotton fabrics; for example, chinese patent CN108822528A discloses a method for preparing a thermal wool fabric, which comprises hot-pressing and compounding a wool slub fabric with a polyurethane thermal composite film by using an adhesive, and increasing the absorption and emission of tubular carbonized micro powder by using the characteristics that nano-scale oxides contained in the polyurethane thermal composite film component can reflect infrared rays and the carbonized micro powder can absorb and emit infrared rays, so that the fabric can be heated more quickly, thereby improving the thermal performance of the wool fabric. Although the technical scheme improves the heat preservation performance of the wool fabric to a certain extent, the defect that the wearing comfort of the wool fabric is poor due to thick wool fibers and poor softness cannot be solved.
Disclosure of Invention
The invention aims to provide a manufacturing process for enhancing the softness and heat retention of a woolen sweater aiming at the existing problems.
The invention is realized by the following technical scheme:
a manufacturing process for enhancing the softness and heat retention of a woolen sweater comprises the following specific manufacturing processes:
1) dissolving 80-100 parts of alkali lignin in water to prepare a suspension with the weight percentage concentration of 34-45%, adding a proper amount of sodium hydroxide solution with the concentration of 20-25% to adjust the pH value to 9-11, heating to 70-80 ℃, adding 3-7 parts of sodium periodate, reacting for 1-2h, after the reaction is finished, adding 10-15 parts of dichloroacetic acid into distilled water to prepare a dichloroacetic acid solution with the weight percentage concentration of 15-25%, then adding the dichloroacetic acid solution into the alkali lignin suspension, and reacting for 2-3h at 70-80 ℃ to obtain carboxylated alkali lignin; according to the invention, the alkali lignin is chemically modified under normal pressure, and the carboxyl active group is accessed, so that the interaction between the alkali lignin and the inorganic nanoparticles is improved, the adsorption point and the adsorption strength of the alkali lignin on the surface of the inorganic nanoparticles are increased, and the steric hindrance effect formed by the three-dimensional space network structure of the alkali lignin is combined, so that the dispersion uniformity of the inorganic nanoparticles can be improved;
2) adding 10-40 parts of nano silicon dioxide into ethanol/water solution with the volume ratio of 1:8-12, performing ultrasonic treatment for 20-30min under the condition of 400W of 300-; according to the invention, the carboxylated alkali lignin is utilized to pretreat the nano-silica particles, and the carboxylated alkali lignin is adsorbed on the surface of the nano-silica particles, so that the carboxyl groups connected into the alkali lignin can form a hydrogen bond effect with the hydroxyl groups in the wool fibers, and the nano-silica particles can be firmly combined with the wool fibers;
3) adding the pretreated nano-silica into an acetone solvent, carrying out ultrasonic treatment for 10-20min under the conditions of 300-400W to form a dispersion liquid with the weight percentage concentration of 0.5-2%, soaking the cleaned wool fibers in a lithium bromide solution with the concentration of 100-200g/L, soaking at 80-90 deg.C for 3-4h, performing 300-400W ultrasonic vibration treatment every 1h for 10-15min, taking out wool fiber after soaking, squeezing out excessive water, then putting the wool fibers into the dispersion liquid according to the bath ratio of 1:30-50, carrying out immersion treatment for 3-6 times at the immersion speed of 0.1-0.15mm/s, repeatedly washing the wool fibers by using distilled water, and drying the wool fibers at the temperature of 50-60 ℃ to obtain pretreated wool fibers; in the invention, the wool fiber after swelling is soaked in the pretreated nano-silica dispersion liquid, so that the pretreated nano-silica is uniformly dispersed and firmly attached to the surface of the wool fiber under the action of ultrasonic waves, thereby forming a nano-silica particle layer on the surface of the wool fiber;
4) helium with carrier gas of 15-20L/min and oxygen of 0.1-0.3L/min are used to form mixed gas, a spray head is a normal-temperature and normal-pressure plasma device consisting of coaxial electrodes with a gap of 1.5-1.7mm, wool fibers after pretreatment are placed in a plasma treatment area, plasma surface treatment is carried out under the conditions that the power is 35-45W, the frequency is 13-15MHz, the plasma temperature is 65-70 ℃, the distance between the spray head and the wool fibers is 4-7mm, and the moving speed of the wool fibers is 8-13mm/s, and then the treated wool fibers are processed and woven, so that the required woolen sweater can be obtained; according to the invention, the surface of the wool fiber after pretreatment is etched by using the plasma, and after treatment, the surface of the wool fiber and the nano silicon dioxide particle layer attached to the surface are simultaneously etched to form a groove and are excited to generate a large number of active groups, so that the bonding probability between the nano silicon dioxide and the surface of the wool fiber is increased, a large number of nano silicon dioxide can be filled on the surface of the wool fiber, the effect of filling up the microscopic defects on the surface of the wool fiber can be achieved, the smoothness and the flexibility of the surface of the wool fiber can be improved, the dispersion uniformity of the nano silicon dioxide on the surface of the wool fiber can be further improved, and the arrangement regularity of the groove formed by the nano silicon dioxide particles on the surface of the wool fiber can be improved; meanwhile, grooves are formed on the surface of the nano silicon dioxide particle layer under the action of plasma etching, and due to the irregularity of the wool fiber shape, a large number of gaps can be formed when the wool fibers form an aggregate arrangement, so that on one hand, the heat storage and preservation effect of the wool fibers can be improved, on the other hand, the moisture absorption and removal performance of the wool fibers can be enhanced, and the heat preservation effect of wool fabrics is improved.
Compared with the prior art, the invention has the following advantages:
according to the manufacturing process of the woolen sweater, the wool fibers are pretreated, so that inorganic nanoparticles are uniformly attached to the surfaces of the wool fibers, and then the micro defects on the surfaces of the wool fibers are improved through plasma treatment, so that the smoothness and the softness of the wool fibers are improved, and the woven woolen sweater is soft and comfortable to wear; meanwhile, grooves are formed in the inorganic nano particle layers attached to the surfaces of the wool fibers through treatment, so that a large number of gaps can be formed when the wool fibers form an aggregate arrangement, the heat storage and heat preservation effects of the wool fibers are improved, the heat preservation effect of the wool fabrics is improved, and the woollen sweater made of the wool fibers is warm to wear. The treatment process provided by the invention effectively overcomes the defects of poor wearing comfort and poor heat preservation effect of the woolen sweater in the prior art, improves the wearing experience of people on the woolen sweater, and also meets the requirements of people on heat preservation and comfortable fabrics.
Detailed Description
The present invention will be further described with reference to specific embodiments.
Example 1
A manufacturing process for enhancing the softness and heat retention of a woolen sweater comprises the following specific manufacturing processes:
1) dissolving 80 parts of bamboo pulp alkali lignin in water to prepare a suspension with the weight percentage concentration of 34%, adding a proper amount of 20% sodium hydroxide solution to adjust the pH value to 9, heating to 70 ℃, adding 3 parts of sodium periodate, reacting for 1h, after the reaction is finished, adding 10 parts of dichloroacetic acid into distilled water to prepare a dichloroacetic acid solution with the weight percentage concentration of 15%, then adding the dichloroacetic acid solution into the alkali lignin suspension, and reacting for 2h at 70 ℃ to obtain carboxylated alkali lignin;
2) adding 10 parts of nano silicon dioxide into ethanol/water solution with the volume ratio of 1:8, performing ultrasonic treatment for 20min at 300W to prepare nano silicon dioxide suspension with the weight percentage concentration of 20%, then adding the nano silicon dioxide suspension into liquid carboxylic acid alkali lignin, heating to 60 ℃, reacting for 1h, then adjusting the pH to 3 by using hydrochloric acid solution with the concentration of 10%, aging for 2h at 60 ℃, and performing spray drying to prepare pretreated nano silicon dioxide;
3) adding pretreated nano silicon dioxide into an acetone solvent, carrying out ultrasonic treatment for 10min at 300W to form a dispersion liquid with the weight percentage concentration of 0.5%, soaking cleaned wool fibers in a lithium bromide solution with the concentration of 100g/L for 3h at 80 ℃, carrying out ultrasonic oscillation treatment for 10min at intervals of 1h in the soaking process, taking out the wool fibers after soaking is finished, squeezing out excessive water, then putting the wool fibers into the dispersion liquid according to the bath ratio of 1:30, carrying out soaking treatment for 3 times at the soaking speed of 0.1mm/s, repeatedly cleaning the wool fibers by distilled water, and drying the wool fibers at 50 ℃ to obtain the pretreated wool fibers;
4) helium with carrier gas of 15L/min and oxygen with carrier gas of 0.1L/min are used to form mixed gas, a spray head is a normal-temperature and normal-pressure plasma device consisting of coaxial electrodes with a gap of 1.5mm, the pretreated wool fibers are placed in a plasma treatment area, plasma surface treatment is carried out under the conditions that the power is 35W, the frequency is 13MHz, the plasma temperature is 65 ℃, the distance between the spray head and the wool fibers is 4mm, and the moving speed of the wool fibers is 8mm/s, and then the treated wool fibers are processed and woven, so that the required woolen sweater can be obtained.
Example 2
A manufacturing process for enhancing the softness and heat retention of a woolen sweater comprises the following specific manufacturing processes:
1) dissolving 90 parts of wood pulp alkali lignin in water to prepare a suspension with the weight percentage concentration of 40%, adding a proper amount of 23% sodium hydroxide solution to adjust the pH value to 10, heating to 75 ℃, adding 5 parts of sodium periodate, reacting for 1.5h, after the reaction is finished, adding 13 parts of dichloroacetic acid into distilled water to prepare a dichloroacetic acid solution with the weight percentage concentration of 20%, then adding the dichloroacetic acid solution into the alkali lignin suspension, and reacting for 2.5h at 75 ℃ to obtain carboxylated alkali lignin;
2) adding 30 parts of nano silicon dioxide into ethanol/water solution with the volume ratio of 1:10, performing ultrasonic treatment for 25min at 350W to prepare nano silicon dioxide suspension with the weight percentage concentration of 25%, then adding the nano silicon dioxide suspension into liquid carboxylic acid alkali lignin, heating to 65 ℃, reacting for 1.5h, then adjusting the pH to 4 by using hydrochloric acid solution with the concentration of 15%, aging for 2.5h at 65 ℃, and performing spray drying to prepare pretreated nano silicon dioxide;
3) adding pretreated nano silicon dioxide into an acetone solvent, carrying out ultrasonic treatment for 15min at 350W to form a dispersion liquid with the weight percentage concentration of 1.5%, soaking cleaned wool fibers in a lithium bromide solution with the concentration of 150g/L for 3-4h at 80-90 ℃, carrying out ultrasonic oscillation treatment for 12min at intervals of 1h in the soaking process, taking out the wool fibers after soaking is finished, squeezing out excessive moisture, then putting the wool fibers into the dispersion liquid according to the bath ratio of 1:40, carrying out soaking treatment for 5 times at the soaking speed of 0.13mm/s, repeatedly cleaning the wool fibers by distilled water, and drying the wool fibers at 55 ℃ to obtain the pretreated wool fibers;
4) the mixed gas of helium with carrier gas of 17L/min and oxygen of 0.2L/min is used, a spray head is a normal-temperature and normal-pressure plasma device consisting of coaxial electrodes with a gap of 1.6mm, the pretreated wool fibers are placed in a plasma treatment area, the plasma surface treatment is carried out under the conditions that the power is 40W, the frequency is 14MHz, the plasma temperature is 68 ℃, the distance between the spray head and the wool fibers is 5mm, and the moving speed of the wool fibers is 10mm/s, and then the treated wool fibers are processed and woven, so that the required woolen sweater can be obtained.
Example 3
A manufacturing process for enhancing the softness and heat retention of a woolen sweater comprises the following specific manufacturing processes:
1) dissolving 100 parts of cotton pulp alkali lignin in water to prepare a suspension with the weight percentage concentration of 45%, adding a proper amount of 25% sodium hydroxide solution to adjust the pH value to 11, heating to 80 ℃, adding 7 parts of sodium periodate, reacting for 2 hours, after the reaction is finished, adding 15 parts of dichloroacetic acid into distilled water to prepare a dichloroacetic acid solution with the weight percentage concentration of 25%, then adding the dichloroacetic acid solution into the alkali lignin suspension, and reacting for 3 hours at 80 ℃ to obtain carboxylated alkali lignin;
2) adding 40 parts of nano silicon dioxide into ethanol/water solution with the volume ratio of 1:12, performing ultrasonic treatment for 30min at 400W to prepare nano silicon dioxide suspension with the weight percentage concentration of 30%, then adding the nano silicon dioxide suspension into liquid carboxylic acid alkali lignin, heating to 70 ℃, reacting for 2h, then adjusting the pH to 5 by using hydrochloric acid solution with the concentration of 20%, aging for 3h at 70 ℃, and performing spray drying to prepare pretreated nano silicon dioxide;
3) adding pretreated nano silicon dioxide into an acetone solvent, carrying out ultrasonic treatment for 20min at 400W to form a dispersion liquid with the weight percentage concentration of 2%, soaking cleaned wool fibers in a lithium bromide solution with the concentration of 200g/L, carrying out soaking treatment for 4h at 90 ℃, carrying out ultrasonic oscillation treatment for 15min at intervals of 1h in the soaking process, taking out the wool fibers after soaking is finished, squeezing out excessive water, then putting the wool fibers into the dispersion liquid according to the bath ratio of 1:50, carrying out soaking treatment for 6 times at the soaking speed of 0.15mm/s, repeatedly cleaning the wool fibers by distilled water, and drying the wool fibers at 60 ℃ to obtain the pretreated wool fibers;
4) helium with carrier gas of 20L/min and oxygen of 0.3L/min are used to form mixed gas, a spray head is a normal-temperature and normal-pressure plasma device consisting of coaxial electrodes with a gap of 1.7mm, the pretreated wool fibers are placed in a plasma treatment area, plasma surface treatment is carried out under the conditions that the power is 45W, the frequency is 15MHz, the plasma temperature is 70 ℃, the distance between the spray head and the wool fibers is 7mm, and the moving speed of the wool fibers is 13mm/s, and then the treated wool fibers are processed and woven, so that the required woolen sweater can be obtained.
Test protocol:
(1) test sample
The test patterns of the fabrics woven by the wool fibers provided in examples 1 to 3, the comparative example of the fabrics woven by the wool fibers which are not treated by the invention, and the comparative example of the fabrics woven by the wool fibers which are not treated by the invention are coated with the coating agent a prepared by adopting the technical scheme disclosed in the example 1 of Chinese patent CN110685170A, and the coating weight is 20g/m2The wool fabric is dried at the temperature of 60 ℃, the selected sample fabrics are woven on a common circular machine according to the conventional yarn count requirement and the fabric density, the weaving conditions and the process of each sample are kept consistent as much as possible, the specification of the fabric is 30 × 30cm, the components of the selected wool fibers are 100% wool, the quality count is 66s, the yarn count is 48/2, and the woven samples are all 1+1 rib fabric structures.
(2) Procedure of experiment
a. Test of warmth retention
According to the requirement of method A in a method for testing the heat preservation performance of textiles (GB 11048-1989), a test pattern is tested by adopting a YG606L flat-plate type heat preservation instrument, before the test is started, a tester stacks fabrics for the test (each sample comprises 10 identical samples and 50 samples in total) together to be organized into a sample group for testing, the sample group is covered on a test board of 20 × 20cm in the test process, the test board, a bottom board and surrounding protective boards are electrically heated to control the same temperature and are kept at the constant temperature in a power-on and power-off mode, the heat of the test board can only be dissipated in the direction of the sample, the heating time required by the test board to keep the constant temperature within a certain time is measured, and the heat preservation rate of the sample is calculated, wherein the formula of the heat preservation rate is Q = (1-Q)2/Q1) × 100%, wherein Q is the heat retention percentage%1-no sample heat dissipation, W/° c; q2-sample heat dissipation, W/° c; wherein Q1、Q2Respectively calculated by the following formula1=（Nt1/t2）/(Tp-Ta），Q2=（Nt1 ，/t2 ，）/(Tp-Ta ，) Wherein, N-test board electrical power, W; t is t1、t1 ，-cumulative heating time without sample, with sample, s; t is t2、t2 ，-total test time without sample, with sample, s; t isp-test panel average temperature, ° c; t isa、Ta ，-average temperature of air in the hood with no sample at C. The calculated heat retention rates after testing are shown in the following table:
the table shows that the heat preservation rate of the fabric provided by the invention is more than 80%, which is obviously higher than that of the fabric provided by the comparative example and the control group, and the manufacturing process provided by the invention can obviously provide the heat preservation effect of the wool fabric.
b. Hand feeling test
S1 subjective evaluation standard of hand feeling
In the pre-test process, two sample fabrics with obviously different handfeel are selected for evaluation, one fabric is a cashmere fabric, the other fabric is a wool fabric, and the wool is thicker; the composition and texture of the sample fabric were as follows: the fiber component of the No. 1 test is 100% cashmere, the fiber component of the No. 2 test is 100% wool, and the tissue structures of the two samples are both 1+1 rib; according to the cognition of people on the wearing comfort of the fabric, most people evaluate the 1# sample fabric as 'very soft and excellent in elasticity', evaluate the 2# sample fabric as 'very hard hand feeling and poor hair feeling', use the two as reference samples, and grade the hand feeling of the sample fabric, wherein the two are respectively as follows: grade 1-very soft, excellent elasticity; grade 2-soft, but slightly inferior to grade 1; grade 3-hard hand feel, not strong hair feel; level 4-very hard hand, poor hair feel; grade 5-very hard hand, very poor hair feel.
S2 test method
Before the test of the testee, the testee should explain the concrete meaning of the subjective feeling grade description of the hand feeling again, and take over the attention in the test process, each test is participated by one person, the testee is required to sit on a chair beside a table comfortably all the time in the whole test process, the hand is placed on the table comfortably, the hand is upward, and no food, water and any other matters irrelevant to the test are needed to be taken, before the test is started, 15 pupils in 6 to 12 years old and 15 girls in 20 to 25 years old who know the professional knowledge related to the weaving field are randomly selected to participate in the fabric hand feeling test, the sample fabrics (each sample comprises 3 identical samples and 15 samples) are stacked together to be coded into a sample group, when the testee carries out the test, the eyes of the testee are covered by an eye shield to ensure that the testee can not see the sample fabrics to be used for the hand feeling evaluation, so as to avoid that they leave subjective impression on the sample and influence the final evaluation; when the subject is fully familiar with the specific meanings of the respective hand-feeling grades in the evaluation criteria and is in a relaxed state, the test is started after the subject is covered with eyes, and the test steps are as follows: (1) randomly drawing a sample from the samples for testing, and flatly placing the sample on a table top with the front side upward, wherein the hand surface of a test subject is required to be flatly placed on the sample; (2) the subject carefully experiences the feel of the sample on the facial skin in the following three phases, phase 1: lightly stroking the test sample on the hand surface of the test subject, wherein the reaction time of the initial instant feeling is 0-20s, and the test subject forms the impression of instant evaluation on the test sample in the period; and (2) stage: the subject grasped the sample by the other hand and kneaded to enhance the evaluation feeling of the hand feeling; and (3) stage: the hand feeling of the test piece was evaluated comprehensively from the feelings at the first two stages. (Note: during the hand feeling test, the subjects can constantly refer to the feeling of the hand produced by the sample No. 1 and the sample No. 2 in the preliminary experiment, wherein the hand feeling produced by the sample No. 1 is defined as "very soft and excellent in elasticity", and the itching feeling produced by the sample No. 2 is defined as "very hard and poor in touch"); (3) after the testee thinks that the testee has definite evaluation to the hand feeling generated by the fabric, the testee gives corresponding evaluation grade according to the subjective evaluation standard of the hand feeling; (4) after the evaluation of one sample is finished, putting the sample on one side, randomly selecting one sample from the rest samples, restarting a new evaluation according to the three steps (1), (2) and (3), in order to avoid the error of subjective evaluation caused by fatigue of the subject, after the subject tests 3 samples, resting for 30min, and continuing the test until a complete sample group is evaluated; (5) after the test of one subject is finished, the test of the next subject is carried out according to a random sequence, the test steps are the test periods (1), (2), (3) and (4), the subjects are reminded that the subjects cannot discuss any evaluation value related to hand feeling and samples, and after each subject evaluates 15 samples of 5 fabrics in total, the human hand feeling test is finished.
After all tests to be tested are completed, the test results are summarized, so that the hand feeling of 5 sample fabrics is evaluated, and the results are shown in the following table:
example 1
Example 2
Example 3
Comparative example
Control group
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention.
Claims (5)
1. A manufacturing process for enhancing the softness and warmth retention of a woolen sweater is characterized by comprising the following specific manufacturing processes of:
1) dissolving alkali lignin in water to prepare suspension, adjusting the pH value to 9-11, heating to 70-80 ℃, adding a proper amount of sodium periodate, reacting for 1-2h, after the reaction is finished, adding a dichloroacetic acid solution into the alkali lignin suspension, and reacting for 2-3h at 70-80 ℃ to obtain carboxylated alkali lignin;
2) adding nano silicon dioxide into ethanol/water solution, performing ultrasonic treatment for 20-30min at 400W under 300-400W to prepare nano silicon dioxide suspension, then adding the nano silicon dioxide suspension into liquid carboxylic acid alkali lignin, heating to 60-70 ℃, reacting for 1-2h, then adjusting the pH to 3-5, aging for 2-3h at 60-70 ℃, and then performing spray drying to obtain pretreated nano silicon dioxide;
3) adding pretreated nano silicon dioxide into an acetone solvent, carrying out ultrasonic treatment for 10-20min at the concentration of 300-400W to form a dispersion liquid, soaking the cleaned wool fibers in a lithium bromide solution with the concentration of 100-200g/L, carrying out soaking treatment for 3-4h at the temperature of 80-90 ℃, carrying out 300-400W ultrasonic oscillation treatment for 10-15min every 1h in the soaking process, taking out the wool fibers after soaking is finished, squeezing out excessive moisture, then putting the wool fibers into the dispersion liquid for soaking treatment, and cleaning and drying to obtain the pretreated wool fibers;
4) and (3) using a normal-temperature and normal-pressure plasma device, putting the pretreated wool fibers into a plasma treatment area for plasma surface treatment, and processing and weaving the treated wool fibers to obtain the required woolen sweater.
2. The manufacturing process for enhancing the softness and the heat retention of the woolen sweater according to claim 1, wherein in the step 1), the alkali lignin is at least one of bamboo pulp alkali lignin, wood pulp alkali lignin and cotton pulp alkali lignin, and the weight percentage concentration of the suspension liquid is 34-45%; the concentration of the dichloroacetic acid solution is 15 to 25 percent by weight; the weight ratio of the alkali lignin, the sodium periodate and the dichloroacetic acid is 80-100:3-7: 10-15; the solution for adjusting the pH value is a sodium hydroxide solution with the concentration of 20-25%.
3. The manufacturing process for enhancing the softness and warmth retention of the woolen sweater according to claim 1, wherein in the step 2), the volume ratio of ethanol to water in the ethanol/water solution is 1: 8-12; the weight percentage concentration of the nano silicon dioxide suspension is 20-30%; the weight ratio of the nano silicon dioxide to the alkali lignin is 10-40: 80-100; the solution for adjusting the pH value is a hydrochloric acid solution with the concentration of 10-20%.
4. The manufacturing process for enhancing the softness and the warmth of the woolen sweater according to claim 1, wherein in the step 3), the weight percentage concentration of the dispersion liquid is 0.5-2%; the bath ratio of the wool fibers to the dispersion liquid is 1: 30-50; the dipping speed of the dipping treatment is 0.1-0.15mm/s, and the dipping times are 3-6 times; the washing and drying are repeated washing with distilled water and drying at 50-60 deg.C.
5. The manufacturing process for enhancing the softness and the heat retention of the woolen sweater according to claim 1, wherein in the step 4), the process parameters of the plasma treatment are as follows: the plasma carrier gas is a mixed gas consisting of 15-20L/min helium and 0.1-0.3L/min oxygen, the spray head consists of coaxial electrodes with a gap of 1.5-1.7mm, the power is 35-45W, the frequency is 13-15MHz, the plasma temperature is 65-70 ℃, the distance between the spray head and the wool fiber is 4-7mm, and the moving speed of the wool fiber is 8-13 mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010151023.8A CN111321584A (en) | 2020-03-06 | 2020-03-06 | Manufacturing process for enhancing softness and heat retention of woolen sweater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010151023.8A CN111321584A (en) | 2020-03-06 | 2020-03-06 | Manufacturing process for enhancing softness and heat retention of woolen sweater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111321584A true CN111321584A (en) | 2020-06-23 |
Family
ID=71165576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010151023.8A Withdrawn CN111321584A (en) | 2020-03-06 | 2020-03-06 | Manufacturing process for enhancing softness and heat retention of woolen sweater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111321584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114708224A (en) * | 2022-03-31 | 2022-07-05 | 南通金斯曼纺织有限公司 | Artificial intelligence-based textile texture quality assessment method and system |
| CN117511155A (en) * | 2023-11-24 | 2024-02-06 | 江门职业技术学院 | Preparation method of reaction blending toughening polylactic acid starch compound |
-
2020
- 2020-03-06 CN CN202010151023.8A patent/CN111321584A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114708224A (en) * | 2022-03-31 | 2022-07-05 | 南通金斯曼纺织有限公司 | Artificial intelligence-based textile texture quality assessment method and system |
| CN117511155A (en) * | 2023-11-24 | 2024-02-06 | 江门职业技术学院 | Preparation method of reaction blending toughening polylactic acid starch compound |
| CN117511155B (en) * | 2023-11-24 | 2024-04-09 | 江门职业技术学院 | Preparation method of reaction blending toughening polylactic acid starch compound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111321584A (en) | Manufacturing process for enhancing softness and heat retention of woolen sweater | |
| CN106012148A (en) | Preparation method of cotton-hemp insulation chameleon fiber blended yarn | |
| KR20120135621A (en) | Micro-exothermic fabric containing tencel fiber | |
| CN106592225A (en) | Aromatherapy skin-protection type non-ironing finishing liquid for shirts and finishing method thereof | |
| CN107858831A (en) | The preparation method of water suction gas permeability fabric | |
| CN111254552A (en) | Cotton-wool blended yarn fabric and preparation method thereof | |
| CN107630285A (en) | A kind of high-elastic woollen blanket of antibiotic health care type and its production technology | |
| CN103590235A (en) | Anti-ultraviolet method for cotton fibers | |
| CN110318139B (en) | Preparation method of fiber fabric with ultraviolet resistance function | |
| CN110037364A (en) | A kind of cashmere sweater clothing technique | |
| JP3096037B1 (en) | Tourmaline-containing silk fiber product and method for producing the same | |
| CN108708169A (en) | A kind of viscose face fabric finishing agent and its application method | |
| CN114934396A (en) | Cloth printing and dyeing process | |
| CN107964790A (en) | A kind of antistatic antibiotic hair neck | |
| CN106835413A (en) | A kind of preparation method of the coloured stretch yarn of fiber blend high scalability | |
| CN112796108A (en) | Method for processing modal fiber embroidery fabric | |
| CN105780137B (en) | A kind of preparation method of super soft highly hygroscopic silk fiber | |
| CN111472169A (en) | Preparation method of all-cotton anti-pilling super-soft sanded fabric | |
| CN111691045A (en) | Multifunctional fabric and preparation method thereof | |
| CN107675509A (en) | A kind of antistatic antibiotic hair neck | |
| CN110205810A (en) | A kind of preparation method of washable non-shrinkable wool item | |
| CN110477491A (en) | A kind of resisting cold school uniform fabric and preparation method thereof | |
| CN111335035A (en) | Treatment process for improving scratchiness of woolen sweater during wearing | |
| CN109898215A (en) | Composite wool fabric and its manufacture craft with cold-resistant heat-preserving function | |
| CN113529411A (en) | Cool finishing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200623 |