CN114732184B - Mixed hair treatment process for shape memory - Google Patents

Mixed hair treatment process for shape memory Download PDF

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Publication number
CN114732184B
CN114732184B CN202210464733.5A CN202210464733A CN114732184B CN 114732184 B CN114732184 B CN 114732184B CN 202210464733 A CN202210464733 A CN 202210464733A CN 114732184 B CN114732184 B CN 114732184B
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hair
stretching
sample
clamping table
treatment process
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CN114732184A (en
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孙鲁正
许海英
孔保运
王雪云
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Qingdao Hailin Hair Products Group Co ltd
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Qingdao Rongmei Hair Products Group Co ltd
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0075—Methods and machines for making wigs
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
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  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention discloses a mixed hair treatment process for shape memory, which comprises the steps of pretreatment, stretching, water washing, shaping, boiling water treatment and sampling test. The invention provides a novel stretching-shaping processing technology, adopts a processing technology combining a physical processing mode and a chemical agent processing mode, can improve shaping effect, reduces the recovery rate of the hair fiber after stretching, can reduce the loss of scales in the hair fiber, reduces the damage degree to the hair fiber, and maintains the original structure of the hair fiber to the greatest extent.

Description

Mixed hair treatment process for shape memory
Technical Field
The invention relates to the technical field of wig product production, in particular to a mixed hair treatment process for shape memory.
Background
Hair is a multicellular fibrous material composed of keratin as a main body (about 95% of dry hair mass), and keratin is composed of amino acids. Each hair consists of an epidermal scale layer, a cortical layer and a medulla layer. The outermost layer of the hair is a cuticle scale layer, and is usually composed of 2-4 layers of scales. The cortex layer is the main body of hair and is composed of several layers of prismatic keratinocytes, and the cells contain a large amount of pigment particles. Cortical cells have a diameter of about 2 to 3 μm and consist of a number of basal fibrils, microfibrils and macrofibrils. The diameter of the base fibrils is only about 2X 10 < -3 > mu m, and the base fibrils are composed of 2-3 strands of alpha-helical angle proteins. The medullary layer is located in the center of the hair and consists of 2-3 layers of shrunken cube-shaped keratinocytes. The hair ends and vellus hair are free of medulla.
Currently, the quality of wig materials in the market mainly comprises 3 types: whole hair (i.e., 100% hair fibers), chemical hair (i.e., 100% synthetic fibers), and mixed hair (i.e., hair fibers + synthetic fibers). As a raw material of the hair product, the synthetic fiber is not limited by resources, has been industrially produced, has low cost and low price, and has become the main stream of the hair product market. In addition, various colors and varieties can be changed in time according to market demands, and the added value of the product is high. In order to make the performance of synthetic fibers more similar to that of natural hair, new wig fiber varieties have been developed or various modification methods of existing fibers have been studied. Synthetic fibers commonly used in the production of hair products are polyvinyl chloride (PVC) based fibers, polyacrylonitrile (PAN) based fibers, polyester (mainly PET) based fibers, polypropylene (PP) based fibers, protein based fibers, and the like.
In the wig production process, in order to satisfy the demand of different customers to wig hairline thickness, need carry out tensile processing with mixed hair, current stretching equipment is through fixed wig both ends more, with fixed clamp interval and tensile rate with the hairline tensile, the central point stress that can learn the hairline to the hairline tensile process is biggest, the fracture is most produced easily, and whole tensile in-process, the elongation of hairline is nonlinear growth, the intermediate position elongation is greater than the deformation volume of both ends position, lead to the thickness of hairline inhomogeneous, influence visual effect.
In addition, similar to wool of alpha-keratin fiber, after pretreatment and stretching, the hydrogen bond, disulfide bond and the like among the mixed macromolecules are destroyed, the molecular space structure is converted from alpha spiral type to beta sheet type, the internal microstructure blocks also slide relatively, if the new bonds are not combined at the new position or are not combined firmly at the new position, the shaping is only temporary, after external force is cancelled, the thermal motion of the chain link is retracted, even the chain link is excessively retracted, the hair after stretching is recovered, therefore, the human hair after stretching and thinning is shaped, the shaping purpose is to ensure the existing stretching and thinning effect, and the low recovery rate is realized. The method of adding the setting agent is generally adopted for setting after stretching, but disulfide bonds in the outer layers of scales in the hair fibers are oxidized due to the addition of the oxidizing agent, so that acting force between a leather layer and the scale layers is weakened, a dislocation phenomenon occurs, the hair fibers are damaged, and the setting effect is poor. For this purpose, we propose a mixed hair treatment process for shape memory.
Disclosure of Invention
The invention mainly aims to provide a mixed hair treatment process for shape memory, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a hybrid hair treatment process for shape memory, said treatment process comprising the steps of:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
The stretching equipment comprises a constant temperature operation room, a hair bundle clamping mechanism, a driving mechanism, a guide piece, a sealing mechanism and a steam generation mechanism, wherein the hair bundle clamping mechanism comprises a fixed clamping table, a middle clamping table, a movable clamping table and a pneumatic clamping sheet, the driving mechanism comprises a stepping motor, a ball screw module, a connecting shaft and a spring group, the fixed clamping table is fixedly arranged on one side inside the constant temperature operation room, the middle clamping table and the movable clamping table are arranged in the constant temperature operation room in a suspended manner through a plurality of groups of vertically distributed guide pieces, the movable clamping table moves along the axis direction of the guide piece under the driving of the driving mechanism, the guide piece and the driving mechanism are in sealing connection with the connecting end of the constant temperature operation room through the sealing mechanism, and the steam generation mechanism is arranged at the upper side position of the middle clamping table and the movable clamping table inside the constant temperature operation room.
Furthermore, the connecting shaft penetrates through the middle clamping table, one end of the connecting shaft is connected with the screw shaft of the ball screw module through the coupler, the other end of the connecting shaft is rotationally connected with the fixed clamping table, the spring sets are symmetrically distributed on two sides of the middle clamping table, and the end parts of the spring sets, which are positioned on one side of the middle clamping table close to the movable clamping table, are fixedly connected with the middle clamping table and the sliding blocks of the ball screw module respectively.
Further, the pneumatic clamping piece is the up end of straight line formula evenly distributed in fixed clamping table, middle clamping table and removal clamping table, pneumatic clamping piece lower extreme is equipped with circular-arc protruding, and is located the mounted position department of the pneumatic clamping piece of fixed clamping table, middle clamping table and removal clamping table up end and all is equipped with engaged with recess, and axiality between circular-arc protruding and the recess is less than phi 0.02mm.
Further, the mass concentration of the JFC penetrating agent is 1g/L, and the ratio of the MEate pretreatment agent to the JFC penetrating agent in the mixed solution is 99:1, the mass ratio of the sample hair to the mixed solution is 1:100.
further, the stretching parameters include a clip spacing range of 140mm to 200mm, a stretching speed range of 40mm/min to 60mm/min, and a stretching rate range of 20% to 60%.
Further, the usage amount of the sizing agent is 5% to 8%, and the pH value is 4 to 6.
Further, the test method of the tensile breaking strength of the sample hair in the step S6 comprises the following steps: dividing one group of sample hair randomly sampled in the step S5 into a plurality of groups by taking 100 pieces as a unit, and carrying out dry stretching on the subdivided sample hair under the testing condition of 160mm of clamping distance and 100mm/min of stretching speed by an electronic fabric brute force instrument.
Further, the test method of the alkali solubility of the sample hair ralfate in the step S6 comprises the following steps: randomly sampling one group of the obtained sample hair in the step S5, weighing not less than 0.5g of the test sample hair, drying the test sample hair at 110 ℃ and weighing the absolute dry mass of the test sample hair, shearing the test sample hair, putting the test sample hair into sodium hydroxide solution with the mass concentration of 4g/L, oscillating for 1h at constant temperature of (65+/-0.5) DEG C, carrying out suction filtration, washing the test sample hair with distilled water for at least 5 times, drying the test sample hair and weighing the test sample hair, recording data and carrying out a calculation formula, wherein the alkali solubility calculation formula is as follows:
Figure GDA0004208459640000051
wherein: w (W) 1 Absolute dry mass (g) of the sample; w (W) 2 Absolute dry mass (g) of residue.
Further, the test method of the average diameter of the hair sample in step S6 comprises: and (5) selecting 50 hairs in one group of sample hairs obtained by random sampling in the step S5, observing the middle parts of the sample hairs by using a fiber fineness meter under an optical microscope, and taking an average value for recording.
Further, the formula for determining the hair setting effect of the sample in step S6 is:
Figure GDA0004208459640000052
wherein: s is S 1 For the room temperature setting effect, the temporary setting effect of the test sample was evaluated; s is S 2 For boiling waterShape effect, i.e. evaluating the permanent set effect of the test sample; l (L) 0 Is the clip spacing; l (L) 1 Is the length of the sample after stretching; l (L) 2 The length of the sample after being dried in the air; l (L) 3 For 10min after boiling, the sample length is obtained after air drying.
Further, the stretching device comprises the following steps:
step one, inputting a corresponding number of pulse signals to a stepping motor through a computer control system, wherein the stepping motor drives a ball screw module to move under the drive of the pulse signals and drives a movable clamping table to translate until the distance between the movable clamping table and a fixed clamping table is equal to the set clamping distance;
step two, fixing two ends of the sample hair to be stretched at the fixed clamping table and the movable clamping table respectively through pneumatic clamping sheets, pushing the middle clamping table to the middle position of the connecting line of the fixed clamping table and the movable clamping table, and fixing the middle position of the sample hair at the upper end of the middle clamping table through the pneumatic clamping sheets;
step three, calculating a pulse signal value required by driving a stepping motor through a set stretching rate, inputting a calculated number of pulse signals to the stepping motor by a computer control system, driving a movable clamping table to move by the stepping motor through a ball screw module to calculate a distance value according to the stretching rate, keeping the moving speed of the movable clamping table synchronous with the set stretching rate, setting temperature parameters of a constant temperature operating room in the stretching process, and manufacturing steam required by stretching through a steam generating mechanism.
Compared with the prior art, the invention has the following beneficial effects:
(1) By providing a new stretching-shaping processing technology and adopting a processing technology combining a physical processing mode and a chemical agent processing mode, the shaping effect can be improved, the recovery rate of the stretched hair fiber can be reduced, the loss of scales in the hair fiber can be reduced, the damage degree to the hair fiber can be reduced, and the original structure of the hair fiber can be reserved to the greatest extent;
(2) By adopting the newly proposed stretching equipment to stretch the hair fibers, the stress of the central position of the hair fibers can be reduced, the elongation of the hair fibers in the stretching process is kept to be uniform and linear, and the elongation of the middle position of the hair fibers and the deformation of the two end positions are kept synchronous due to the clamping and fixing of the middle position of the hair fibers, so that the stretching effect of the hair fibers is improved, and the thickness of the hair fibers is uniform.
Drawings
FIG. 1 is a process flow diagram of a hybrid hair treatment process for shape memory according to the present invention;
fig. 2 is a schematic structural view of the stretching apparatus of the present invention.
In the figure: 1. a constant temperature operation chamber; 21. fixing a clamping table; 22. an intermediate clamping station; 23. moving the clamping table; 24. pneumatic clamping pieces; 31. a stepping motor; 32. a ball screw module; 33. a connecting shaft; 34. a spring set; 4. a guide member; 5. a sealing mechanism; 6. a steam generating mechanism.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are presented as schematic drawings, rather than physical drawings, and are not to be construed as limiting the invention, and wherein certain components of the drawings are omitted, enlarged or reduced in order to better illustrate the detailed description of the present invention, and are not representative of the actual product dimensions.
Example 1
As shown in fig. 1-2, a mixed hair treatment process for shape memory includes the steps of:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
The stretching device comprises a constant temperature operation room 1, a hair bundle clamping mechanism, a driving mechanism, a guide piece 4, a sealing mechanism 5 and a steam generation mechanism 6, wherein the hair bundle clamping mechanism comprises a fixed clamping table 21, a middle clamping table 22, a movable clamping table 23 and a pneumatic clamping piece 24, the driving mechanism comprises a stepping motor 31, a ball screw module 32, a connecting shaft 33 and a spring group 34, the fixed clamping table 21 is fixedly arranged on one side inside the constant temperature operation room 1, the middle clamping table 22 and the movable clamping table 23 are suspended in the constant temperature operation room 1 through a plurality of groups of vertically distributed guide pieces 4, the movable clamping table 23 moves along the axial direction of the guide piece 4 under the driving of the driving mechanism, the guide piece 4 and the driving mechanism are in sealing connection with the connecting end of the constant temperature operation room 1 through the sealing mechanism 5, and the steam generation mechanism 6 is arranged inside the constant temperature operation room 1 and is positioned at the upper side position of the middle clamping table 22 and the movable clamping table 23.
The connecting shaft 33 penetrates through the middle clamping table 22, one end of the connecting shaft is connected with the screw shaft of the ball screw module 32 through a coupler, the other end of the connecting shaft is rotationally connected with the fixed clamping table 21, the spring sets 34 are symmetrically distributed on two sides of the middle clamping table 22, and the ends of the spring sets 34 positioned on one side of the middle clamping table 22 close to the movable clamping table 23 are fixedly connected with the middle clamping table 22 and the sliding blocks of the ball screw module 32 respectively.
The pneumatic clamping pieces 24 are uniformly distributed on the upper end surfaces of the fixed clamping table 21, the middle clamping table 22 and the movable clamping table 23 in a linear arrangement mode, arc-shaped protrusions are arranged at the lower ends of the pneumatic clamping pieces 24, engaged grooves are formed in the installation positions of the pneumatic clamping pieces 24 on the upper end surfaces of the fixed clamping table 21, the middle clamping table 22 and the movable clamping table 23, and coaxiality between the arc-shaped protrusions and the grooves is smaller than phi 0.02mm.
The mass concentration of the JFC penetrating agent is 1g/L, and the ratio of the MEate pretreatment agent to the JFC penetrating agent in the mixed solution is 99:1, the mass ratio of the sample hair to the mixed solution is 1:100.
the stretching parameters include a clip spacing in the range of 140mm to 200mm, a stretching speed in the range of 40mm/min to 60mm/min, and a stretching rate in the range of 20% to 60%.
The usage amount of the sizing agent is 5-8%, and the PH value is 4-6.
By adopting the technical scheme:
TABLE 1 influence of the elongation on the properties of hair fibers
Figure GDA0004208459640000101
Taking polyester (mainly PET) base fiber for producing mixed hair as an example, the performance of the hair fiber under different stretching ratios is shown in the table, as the stretching ratio increases, the diameter of the hair fiber gradually decreases, but the trend of decrease is mild, during the stretching, as the middle position of the hair fiber is clamped at the upper end of the middle clamping table 22, the situation of over-stretching does not occur at the center position of the hair fiber during the stretching, the difference of the elongation of the hair fiber at two sides of the middle clamping table 22 is in a normal range, as the spring group 34 of the balance clamping fixed table 22 is arranged, the stress of the hair fiber at two sides of the middle clamping table 22 is different, but the whole stretching amount of the hair fiber keeps linearly increasing, and as the initial clamping interval continuously increases, the distance between the intermediate clamping table 22 and the fixed clamping table 21 and the movable clamping table 23 is increased, so that in the new drawing system, stress concentration points appear at the central positions of the intermediate clamping table 22 and the fixed clamping table 21 and at the central positions of the intermediate clamping table 22 and the movable clamping table 23, so that the drawing effect of the hairline fiber is gradually deteriorated with the increase of the clamping distance, the drawing speed is selected, the drawing speed is increased with the continuous increase of the drawing speed, the drawing speed is not suitable to be too fast or too slow for the partially crystallized fiber (comprising amorphous areas and unstable or imperfect crystals), in addition, the influence of the drawing speed on the setting degree and the setting efficiency is not great because the mixed hairline fiber has good stretchability, it may be that the stretch rate is small so that the change in rate has no significant effect on the degree of setting and the setting efficiency. But the likelihood of fiber breakage increases with increasing draw rate. Therefore, in the stretching process, the stretching speed range is 40mm/min to 60mm/min, the stretching equipment inputs a corresponding number of pulse signals to the stepping motor 31 through the computer control system, the stepping motor 31 drives the ball screw module 32 to move under the driving of the pulse signals to move a distance value calculated according to the stretching rate, the moving speed of the movable clamping table 23 is kept synchronous with the set stretching speed, and the plurality of groups of guide elements 4 are adopted for guiding, so that the running stability and the accurate control of the moving distance in the stretching process can be ensured; further, when the elongation is 40%, the room temperature setting degree and boiling water setting degree are maximum, and the elongation at break is at a minimum, which means that the setting effect of the hairline fiber is optimum when the elongation is 40%.
Example 2
As shown in fig. 1, a mixed hair treatment process for shape memory includes the steps of:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
By adopting the technical scheme:
TABLE 2 Effect of different setting methods on hair fiber properties
Figure GDA0004208459640000121
The physical method is to shape the mixed hair fiber by steaming shaping method, the chemical method is to shape the mixed hair fiber by adding shaping agent, the mixing method is the processing technology combining physical processing mode and chemical agent processing mode, which is provided by the invention, to produce polyester (mainly PET) base fiber for mixed hair, and the stretching rate is 20%, as shown in Table 2, when the mixed hair is used to shape the hair fiber, the room temperature shaping degree and boiling water shaping degree of the hair fiber are both greatly increased, the damage to human hair caused by the stretching process can be counteracted by the crosslinking action of the shaping agent, the hair fiber forms disulfide bond in a new position by oxidation action of the shaping agent, and the disulfide bond is firmer by the crosslinking action of the shaping agent, and has no retraction after boiling water treatment, thus the shaping effect is very good. The steaming shaping method is adopted, so that the hydrophobic groups in the fibers can be reduced more, better stability is brought to the hairline fibers, after the two shaping methods are used in a combined mode, the breaking strength loss of the hairline fibers is small, certain elasticity can be kept, the shaping effect can be improved, the recovery rate of the hair fibers after stretching can be reduced, the loss of scales in the hair fibers can be reduced, the damage degree to the hair fibers is reduced, and the original structure of the hair fibers is reserved to the greatest extent.
Example 3
As shown in fig. 1, a mixed hair treatment process for shape memory includes the steps of:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
The usage amount of the sizing agent is 5-8%, and the PH value is 4-6.
By adopting the technical scheme: because the setting agent is an oxidative acidic substance, when the setting agent is used for setting the hairline fiber, the setting agent is kept in an acidic environment, so that the setting agent is beneficial to reacting with disulfide bonds in the outer layer of the scale, and the acidic reaction environment with the pH value of 4-6 is selected, so that the oxidizing property of the setting agent can reach the optimal state, and the hairline fiber is not damaged in the peracid environment.
Example 4
As shown in fig. 1, a mixed hair treatment process for shape memory includes the steps of:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
By adopting the technical scheme: in the step S4 setting procedure, the composite steaming setting time is 10min, in the initial setting stage, the hair fiber is gradually stretched, the scale layer is thinned, after the oxidation treatment of the setting agent, disulfide bonds in the outer layer of the scale are oxidized, so that the internal and external osmotic pressure difference of the surface layer of the scale is caused, the surface layer of the scale can bulge into vacuoles, human hair is easy to expand, when the stretching degree is higher, compared with scale cells, leather cells are easy to stretch, the acting force between the leather layer and the scale layer is weakened due to different thinning proportions, the phenomenon of dislocation exists, the surface layer of the scale forms a semi-permeable membrane, large vacuoles appear, namely the Alvardend phenomenon, the process is the reaction time period of the setting agent, the steaming is favorable for promoting the oxidation reaction, after the oxidation reaction is carried out to a certain extent, the exposed disulfide bonds in the outer layer of the scale are basically oxidized, so that stable new chemical bonds are formed, but as the steaming time is continuously increased, the new chemical bonds formed by the hair fiber are damaged in a high-temperature environment, so that the mechanical property of the hair fiber is reduced, the breaking elongation, the room temperature setting degree and the setting time is easy to be improved, and the setting effect is remarkably improved, and the setting time is 10min is favorable.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A mixed hair treatment process for shape memory, which is characterized in that: the treatment process comprises the following steps:
s1, preprocessing; the specific flow is as follows: placing the sample wool in a container, adding a mixed solution of a MEate pretreatment agent and a JFC penetrating agent, and treating in a constant-temperature water bath at 70 ℃ for 40-50 min;
s2, stretching; the specific flow is as follows: equally dividing the weight of the sample hair obtained in the step S1 into a plurality of parts, fixing the sample hair through a stretching device, and stretching for 2 to 5 minutes in a boiling water steaming environment according to set stretching parameters;
s3, washing with water; the specific flow is as follows: washing the hair of the sample obtained after stretching in the step S2 for 3 to 5 times at room temperature by using distilled water, and drying;
s4, shaping; the specific flow is as follows: treating the sample hair obtained in the step S3 with a shaping agent for 10min to 15min, regulating the pH value, carrying out composite steaming shaping for 10min, washing the sample hair with distilled water for 3 to 5 times, and drying at 110 ℃;
s5, boiling water treatment; the specific flow is as follows: the sample hair obtained in the step S4 is placed in boiling water for treatment for 10min, and then naturally dried in the room temperature environment;
s6, sampling test; the specific flow is as follows: randomly sampling the sample hair obtained in the step S5 to obtain four equal weight sample hair, and respectively testing tensile breaking strength, acid-base solubility, average diameter and setting effect indexes.
2. A mixed hair treatment process for shape memory according to claim 1, wherein: stretching equipment includes constant temperature control room (1), hair bundle clamping mechanism, actuating mechanism, guide (4), sealing mechanism (5) and steam generation mechanism (6), hair bundle clamping mechanism includes fixed clamp table (21), intermediate clamp table (22), removes clamp table (23) and pneumatic clamp piece (24), actuating mechanism includes step motor (31), ball screw module (32), connecting axle (33) and spring group (34), fixed clamp table (21) fixed mounting is in inside one side of constant temperature control room (1), intermediate clamp table (22) and remove clamp table (23) unsettled inside of constant temperature control room (1) through multiunit guide (4) of perpendicular distribution, and remove clamp table (23) and remove along the axis direction of guide (4) under actuating mechanism's drive, sealing connection is carried out through sealing mechanism (5) to guide (4) and actuating mechanism and the link of constant temperature control room (1), steam generation mechanism (6) are installed in inside constant temperature control room (1) and are located intermediate clamp table (22) and remove clamp table (23) upside position department.
3. A mixed hair treatment process for shape memory according to claim 2, wherein: the connecting shaft (33) penetrates through the middle clamping table (22), one end of the connecting shaft is connected with a screw shaft of the ball screw module (32) through a coupler, the other end of the connecting shaft is rotationally connected with the fixed clamping table (21), the spring groups (34) are symmetrically distributed on two sides of the middle clamping table (22), and the ends of the spring groups (34) located on one side, close to the movable clamping table (23), of the middle clamping table (22) are fixedly connected with the middle clamping table (22) and the sliding blocks of the ball screw module (32) respectively.
4. A mixed hair treatment process for shape memory according to claim 2, wherein: the pneumatic clamping pieces (24) are uniformly distributed on the upper end surfaces of the fixed clamping table (21), the middle clamping table (22) and the movable clamping table (23) in a linear arrangement mode, arc-shaped protrusions are arranged at the lower ends of the pneumatic clamping pieces (24), meshed grooves are formed in the installation positions of the pneumatic clamping pieces (24) on the upper end surfaces of the fixed clamping table (21), the middle clamping table (22) and the movable clamping table (23), and coaxiality between the arc-shaped protrusions and the grooves is smaller than phi 0.02mm.
5. A mixed hair treatment process for shape memory according to claim 1, wherein: the mass concentration of the JFC penetrating agent is 1g/L, and the ratio of the MEate pretreatment agent to the JFC penetrating agent in the mixed solution is 99:1, the mass ratio of the sample hair to the mixed solution is 1:100.
6. a mixed hair treatment process for shape memory according to claim 1, wherein: the stretching parameters comprise a clip spacing range from 140mm to 200mm, a stretching speed range from 40mm/min to 60mm/min and a stretching rate range from 20% to 60%.
7. A mixed hair treatment process for shape memory according to claim 1, wherein: the dosage of the sizing agent is 5-8%, and the PH value is 4-6.
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CN108236155A (en) * 2018-01-19 2018-07-03 安徽富泰发饰文化股份有限公司 A kind of heat-setting method of wig curly hair
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Address after: Room 2101, building 2, Shangpin Plaza, No.15 Changjiang Road, Pingdu Economic Development Zone, Qingdao City, Shandong Province 266000

Patentee after: Qingdao Hailin Hair Products Group Co.,Ltd.

Address before: Room 2101, building 2, Shangpin Plaza, No.15 Changjiang Road, Pingdu Economic Development Zone, Qingdao City, Shandong Province 266000

Patentee before: Qingdao Rongmei Hair Products Group Co.,Ltd.