JPH0633373A - Method for permanently setting wool product and hair - Google Patents

Abstract

PURPOSE:To provide the method for highly durably permanently setting the wool product or hair such as woven or knit fabric of wool, cashmere, etc., capable of fixing the wool product or hair in a prescribed shape or form. CONSTITUTION:The method for fixing the wool product or hair comprises applying the solution of a boron hydride compound to the wool product or hair in a state deformed into a prescribed shape or form to cut the cystine bonds of the wool product or hair and subsequently rearranging and recombining to form the cystine bonds in a state arranged along the given shape.

Description

Detailed Description of the Invention

[0001]

[Industrial application] The present invention is to fix and fix the product design, shape and shape in the organization, sewing and finishing of wool knitted fabrics and other wool products, and also to add shape and shape to folds, pleats and the like. The present invention relates to a so-called permanent set method for performing the above, and also relates to a shaped permanent set in hairdressing and beauty of hair.

[0002]

2. Description of the Related Art Conventionally, as a shaping permanent setting method in hairdressing and beauty of hair, an ammonium thioglycolate solution is applied to hair having a predetermined shape, and the protein constituting the hair is heated at room temperature or under heating. A method of fixing the shape / morphology by cleaving the cystine bond and then rearranging the cystine bond along the given shape / shape by natural oxidation with air or by an oxidation reaction with an oxidizing agent is called It has been widely practiced as is known by the popular name "perm". On the other hand, as a method of fixing the shape and form of hair products, although there is a high demand for a setting method with excellent durability such as folds and pleats for woolen fabric products, the operation and principle are slightly the same as the permanent setting method of hair. The so-called "Si-Ro-Set" process of the Australian patent filed in 1957, in which Ammonium thioglycolate is used for setting, is known, and practically used and widely used methods are hardly found. Is in a state.

[0003]

As described above, the method of using thioglycolate (ammon thioglycolate) for the shaping permanent set in hairdressing and beauty of hair is a method which has a long history and is a well-established permanent method. is there. However, this method has a major defect that it is an unbearable and remarkable odor inherent to the reaction agent thioglycolate, and at the time of orthopedic permanent setting, a bad odor that is not suitable for the image of barber and beauty is stagnant and effectively changed. Since there is no way to do it, the reality is that he persevered with the idea that it was an inevitable patience for hairdressing and beauty. Furthermore, it was not uncommon for this thioglycolate to be adsorbed to hair or skin and not easily and completely removed, and to be able to escape from an unpleasant odor with odor even after setting for a long time. On the other hand, Si-R0-S was invented as a permanent setting method for hair products.
In the et method, too, the vapor and odor of thioglycolate, which is also highly toxic to the work environment, scatters the shape and form of a large number of products. There was a problem that it was difficult to adopt due to safety management, and it was difficult to put it into practical use. Therefore, in the present invention, it is possible to eliminate such problems and receive a permanent set of hairdressing and beauty without discomfort, and even though the demand is high, there is no effective means, so excellent performance is obtained. The shape that has been given up as a sole defect of hair products that have
Gives the hair product a permanent setting property of the shape without an unpleasant work environment, gives sewing performance that also includes three-dimensional moldability for the hair product, and enables set processing with excellent durability such as folds and pleats. In addition, we succeeded in giving hair products a function that improves the maintenance-free degree when worn.

[0004]

[Means for Solving the Problems] Hair, wool, cashmere, and other animal hair fibers contain cystine in the protein, and the cystine bond imparts shape retention (memory). Although the elastic modulus is not high, and the hygroscopicity is large, the tensile elastic modulus and other fiber physical properties are greatly changed (decreased) due to the moisture absorption, but these do not become defects, but on the contrary, the elastic recovery rate is high and it is comfortable to wear. It is a fiber with an extremely excellent function that it does not become sticky and wrinkle due to moisture. However, on the other hand, this feature makes it difficult to perform so-called permanent setting that gives a predetermined shape and form, fixing hairstyle in hairdressing and beauty, fixing three-dimensional shape and form to hair products, pleats and folds. It was a drawback that made it difficult to set. Principles for carrying out the so-called permanent set method for imparting and fixing the shape and form of products consisting of hair, wool, cashmere and other animal hairs include cystine as a protein constituent and cystine of these animal hairs (human hair). The bond is reduced to a reversible form of cysteine under a given shape and morphology, cleaved, and then reoxidized to an oxidative reaction while maintaining the given shape and morphology. It is considered that morphological fixation is performed by restoring and forming the organized cystine bond. Since such a shape / morphology setting method is a chemical-bonding shape memory treatment, when applied to a knitted fabric, the elements that reduce the setting effect due to the displacement of the yarns constituting the knitted fabric and the displacement of the knitted fabric constituent structure are Although it is unavoidable, it is an excellent setting method that has durability of the setting effect that is not inferior to the setting effect of utilizing the thermoplasticity of the synthetic fiber knitted fabric. The shape and form fixing treatment of these hairs and hair products can be carried out according to the following steps. Fixing the object to be treated in a prescribed shape / form (or giving it a prescribed shape / form) While maintaining the object to be treated in a prescribed shape / form, apply a cystine-binding reducing agent solution of the required concentration / requirement React at temperature for a certain time Treat the treated product in the air with natural oxidation or an oxidant solution to rearrange and re-bond the cystine bond while maintaining the predetermined shape and morphology. If necessary (warm water) wash treatment [may be omitted. Therefore, in order to carry out such a permanent set, as much as possible, only the cystine bond is reduced and the other (dye or the like) is not reduced. The selectivity is high and the reductivity is moderate. It is a reducing agent that exhibits reducing ability under various conditions.It is colorless and odorless and does not damage proteins such as hair fibers and skin.It can be used as a solution dissolved in a stable safe solvent such as an aqueous solution. If permanent set or scattered after treatment to no longer remains in the workpiece, or presence of at least residual reagents and reaction residues it is necessary to select a reducing agent which does not interfere. It is considered that the above-mentioned thioglycolate was selected and put into practical use from such a viewpoint, and as a result of many years of use, this reducing agent satisfies many of the above-mentioned requirements and is conventionally known. Although it is recognized as the best among these products, unfortunately, it had a drawback that it emits a remarkable odor as pointed out above.

Therefore, as a result of studying and selecting a reducing agent satisfying the above-mentioned essential requirements, it was found that the borohydride compound is optimal in all aspects, and the present invention has been completed.
That is, the borohydride compound has a high selectivity and an appropriate reducibility, and is suitable for reducing the cystine bond without reducing other (dye or the like) more than necessary. It has sufficient reducing power to reduce cystine bond under mild conditions of low temperature and low concentration. It can be dissolved in a safe and stable general-purpose solvent such as water, isopropanol, diethylene glycol, and dioxane (at room temperature and below room temperature) to give a stable solution which does not hinder practical use and can be easily and safely treated. The aqueous solution is colorless and odorless. A 1-5% strength solution is sufficient to carry out the reduction reaction of cystine bonds in hair and hair products. The reduction reaction of the protein having a cystine bond proceeds even at room temperature, and at 100 to 100 ° C. at a considerable rate at 30 to 40 ° C.
It progresses extremely violently at ℃. (So-called cold-permanent treatment is possible in hair setting set) Since the treatment can be carried out using a small amount of a low-concentration solution, the absolute amount of the treatment agent attached is small, and a reducible substance (protein having a cystine bond) is present. Below, the reaction activity of the borohydride compound is high, there is almost no remaining of the highly active borohydride compound for a long time, and the main decomposition residue is also safe sodium borate, so it is safe and does not cause bleaching due to residue precipitation. However, the removal treatment may be omitted, but if necessary, it can be easily dissolved and removed by washing with water. If unreacted boron hydride compound is a concern, washing with warm water will facilitate decomposition and removal even if it remains. . From the viewpoint of stability, the borohydride compound used in the present invention is preferably sodium borohydride, potassium borohydride, or lithium borohydride, of which sodium borohydride and potassium borohydride are particularly preferred. When using lithium borohydride, it is desirable to use it as a solution of diethylene glycol or isopropanol in terms of stability.

Since the reduction reaction of cystine bonds in hair and hair products by such a boron hydride compound proceeds at a considerable rate even at 30 to 40 ° C., when a necessary amount of the boron hydride compound is used, Does not require any work to remove unreacted substances, and even if it is left as it is, oxidation and recombination of the cystine bond reduced by the natural oxidation by oxygen in the air progresses, and the cystine bond under a predetermined shape is recombined. The knitting recombination is completed, but when an excess boron hydride compound is added, it is desirable to complete the removal of the excess treatment agent and the recombination of the cystine bond by any of the following treatments. That is, when the washing operation can be carried out, washing with warm water and drying with warm air can complete the removal of the excess treating agent and the re-bonding of the cystine bond. When the washing operation is not possible and the treatment can be performed at high temperature (60 to 100 ° C.), the treatment at high temperature can complete the decomposition of the excess treatment agent and the re-bonding of cystine bond. If none of the treatments in paragraph is not possible or if you do not want to perform the treatment in paragraph, it may be applied by a method such as spraying a dilute solution of an oxidizing agent to complete the decomposition of the excess treatment agent and the recombination of cystine bonds. I can. The oxidizing agent used here is preferably a dilute solution of hydrogen peroxide or a dilute solution of persulfate, but it is desirable to dilute it so that the use concentration is 1% or less.

Next, the shape of the hair and hair products according to the present invention
An example of an embodiment of form fixing processing is shown. That is, the object to be treated (hair and hair products) is fixed in a predetermined shape and form, a predetermined concentration (1 to 5%) of a borohydride compound solution is applied thereto, and the solution is kept at a predetermined temperature (30 to 40 ° C.). The treatment time is shortened as the temperature becomes higher), the excess boron hydride compound is washed and removed with water, dried with warm air and naturally air-oxidized, or a dilute oxidant solution is added to oxidize and complete the treatment. An object to be treated (hair and hair products) is fixed in a predetermined shape and form, a predetermined concentration (1 to 5%) of a boron hydride compound solution is applied thereto, and a predetermined temperature (steaming or 10
(0 to 140 ° C dry heat treatment) Reaction is performed for a predetermined time, and the reduction reaction is followed by the decomposition and oxidation reaction of the excess boron hydride compound to complete the treatment. A treatment in which an oxidizer dilute solution treatment is added to the final step of the treatment is performed. Method of fixing the shape and supplying the processing temperature with a hot press in the treatment of the item to be performed (eg, wool fabric products are sprayed with an aqueous solution of sodium borohydride and placed on a steam press machine and steamed for a predetermined time. Yes).

The treatment agent for shape setting in the present invention is a selected treatment agent which does not damage the fibers of hair and hair products, and does not discolor or discolor dyes, but it is not specified for dyeing. Since a large number of dyes may include those that are reduced by a borohydride compound and change color, it is necessary to perform a thorough check before use to confirm the presence or absence of color change before use. In addition, it is necessary to confirm by a sufficient test whether or not there is a biochemical effect on the skin, hair root, etc., by the treatment with a dilute solution of a boron hydride compound.

Specific embodiments and effects of the present invention will be shown below by way of examples.

Example 1 Ten grams of sodium borohydride 10 grams
5 of sodium borohydride dissolved in 200 cc of water at ℃
% Aqueous solution and add a few drops of non-ionic activator POE
(4) Laurate is added to adjust the treatment liquid for permanent set. 20 cm (horizontal) x 60 cm (vertical) 1
Three pieces of woven fabric (surge) made of 00% wool were prepared, the both ends in the longitudinal direction were aligned and folded in half, and the previously set treating liquid was applied to the entire surface of this sample with a sprayer to deposit 2.5.
Spray evenly to cc / 100 cm ² . This sample is equipped with a number of pores for steam injection on the upper press plate,
Also, a cushion pad covered with a canvas at the bottom and a lower press plate having a large number of steam exhaust holes sprayed from the upper press plate surface are mounted on a steam press machine and a pressure of ² kg / m ² is applied. And press to inject saturated steam and set for 30 seconds. This processed sample 3
Of the pieces, one piece was air-dried as it was to make a sample 1-1, another piece was taken out and blown with hot air at 100 ° C. for 30 seconds to be dried as a sample 1-2, and another piece was taken out and 0.5% peroxide was added. Aqueous hydrogen solution was sprayed using an atomizer 5 cc / 100 cm ²
And spray dried to obtain Sample 1-3. Next, in order to judge the setting effect, the above sample was put into boiling water and
We boiled for a minute and investigated how the set creases (wrinkles) change. All samples showed no change in the creases at all and showed that the sharp creases were completely retained and had sufficient setting ability. Indicated. In addition, the observation result of the processed product by the scanning electron microscope does not particularly show the damage state due to the processing,
Further, no change in strength and elongation of the test cloth before and after the treatment was found, and no damage due to the treatment was found.

Example 2 In exactly the same manner as in Example 1, only the concentration of boron hydride sodium was changed to 2.5% to perform the shape-fixing setting treatment, and after the setting treatment, air-drying (Sample No. 2-
1), hot air drying after set treatment (Sample No. 2-2), spray treatment with a 0.5% hydrogen peroxide aqueous solution after set treatment (Sample No. 2-3) was prepared, and the sample was boiled in boiling water for 1 minute. The change state of creases (wrinkles) was investigated and the setting ability was evaluated. All samples showed no change in the crease formation and showed that they had sharp creases completely and had sufficient setting ability. It was

[Third Embodiment] In the fixed shape setting process of the second embodiment,
Steam press time 15 seconds (Sample No. 3-1), 45
Second (sample number 3-2) and 60 seconds (sample number 3-3) were changed to set treatment, and after setting, a sample was prepared in which only air-drying was performed and the set ability was evaluated by pouring in boiling water. Only the sample of 3-1 showed a slightly unclear crease wrinkle, but other than the sample of Example 2, there was no change in the crease crease state, and the sharp crease was completely retained, which was a sufficient set. It was shown to have the ability.

[Example 4] 20 cm (horizontal) x 60 cm (vertical) 1
Three pieces of woven fabric (surge) made of 00% wool were prepared, and both ends in the longitudinal direction were combined to be folded in two. First, this sample was set with a steam press machine at a pressing pressure of 2 Kg / m ² and a saturated steam jet for 30 seconds. A crease is provided in advance and a 2.5% sodium borohydride aqueous solution used in Example 2 is applied to the sample with a sprayer to deposit 2.5 cc / 1.
It is evenly sprayed so as to be 00 cm ² and is kept in an atmosphere of 30 ° C. for 5 minutes (Sample No. 4-1) and 15 minutes (Sample No. 4-).
2), hold for 30 minutes (Sample No. 4-3), then 0.
The sample was immersed in a 5% aqueous hydrogen peroxide solution, further washed with slightly hot water at 30 ° C., air-dried with warm air, and poured into boiling water to evaluate the setting ability. Only the sample No. 4-1 had some creases. Although it showed an unclear appearance, it was shown to have a sufficient setting ability by holding sharp creases like the other samples of Example 2.

[Fifth Embodiment] The fixed shape setting process in the second embodiment is performed as follows.
Instead of using a steam press, place the sample sprayed with the treatment solution on an ironing board and cover it with a damp towel.
It was carried out by ironing at 20 ° C. for 30 seconds. At this time, since the sample to be treated is dried by ironing, no treatment is performed after ironing. The set ability evaluation result of the shape fixed set treated cloth showed that it had sharp creases and showed sufficient set ability.

[Example 1]

The test results of Example 4 are summarized in Table 1.

Example 6 6 g of sodium borohydride was added to 50 c
150g of water at 10 ℃ dissolved in diethylene glycol of c
It was diluted with c to prepare a 3% sodium borohydride solution, to which a few drops of POE (4) laurate was added dropwise to prepare a treating solution for setting. 50 straight hair without twists
A sample was prepared, which was bundled in a bundle and spirally wound around a wooden rod having a diameter of 10 mmφ without gaps so that the hair bundle did not overlap.
This sample was immersed in the previously prepared treating solution for setting and immediately lifted up, and the surface was covered with moistened gauze soaked with the treating solution for setting in the atmosphere of 40 ° C. for 5 minutes (Sample No. 5
-1) Leave for 10 minutes (Sample No. 5-2), 20 minutes (Sample No. 5-3), 30 minutes (Sample No. 5-4) to react, then rinse with water, then 0.5% Or hydrogen peroxide solution, spray it for 1 minute, wash it thoroughly with warm water, dry it with warm air, and remove it from the mandrel around which the hair bundle is wrapped.
The setting ability was evaluated by measuring the spiral diameter. The evaluation results showed that only the sample of sample number 5-1 having a reaction time of 5 minutes had a spiral diameter of 15 to 20 mmφ and had a slightly low settability, and the processing time was insufficient, but the others all had a spiral diameter of 10 to 13 mm.
It was shown that φ has sufficient setting ability.

[Comparative example]

[Example 1]

In order to compare with the shape fixed set effect in the fifth embodiment,

In order to evaluate the setting effect, the same test cloth as used in Example 1 was placed on a steam press and pressed for 1 minute to prepare a sample with creases set.

When it was put into boiling water in the same manner as in Example 1, the creases disappeared instantly, the traces of the set disappeared completely, and it was shown that a durable set was not made.

[0010]

INDUSTRIAL APPLICABILITY The present invention provides a solution of a boron hydride compound in a wool knitted fabric made of animal hair such as wool and cashmere, a protein fiber material having a cystine bond such as hair products and hair, under a given shape and form. , Cystine bond is once cleaved, and then the cystine bond is rearranged and recombined under the given shape and morphology to perform chemical memory morphological memory treatment. Shape of
Since the shape is fixed, the durability of the set effect is extremely excellent, and a literal permanent set can be performed. The shape / shape fixing method of the present invention is to fix an object to be processed into a predetermined shape → spraying a boron hydride compound solution → holding as it is for a short time / reaction → natural oxidation by air (auxiliary oxidant dilute solution spraying) It is an easy processing method that can perform processing in a clean environment without the need for special processing equipment (at best, steam press machine, iron or dryer). Further, the boron hydride compound which is the treating agent for fixing the shape and form of the present invention, unlike the reaction reagent thioglycolate which has been conventionally used for such a purpose, has an unbearable foul odor in the work environment, including mackerel and reaction residue. It is a harmless and odorless compound that does not emit an offensive odor over a long period of time like thioglycolate, and has the feature that it can be safely carried out as a permanent set method that is easy to handle and does not cause environmental pollution.

[Table 1]

Claims (6)

[Claims] 1. A borohydride compound solution is applied to a wool knitted woven fabric or other wool product under a given shape and morphology to cause a reaction, and then natural oxidation or oxidation with an oxidant solution is performed to fix the shape and morphology. Permanent setting method characterized by 2. A wool woven fabric or other wool product is given a predetermined shape / form and a sodium borohydride or potassium borohydride solution is applied, and the reaction is promoted under a fixed shape by pressing under moist heat or dry heat. Permanent setting method for hair products, characterized by natural oxidation or oxidation with an oxidant solution to fix a predetermined shape and form 3. A product whose shape and form are fixed by the method according to claim 1. 4. A treatment agent for fixing the shape and form of a wool knitted fabric and other wool products, which comprises the boron hydride compound according to claim 1. 5. A borohydride compound solution is applied to hair, and the reaction is promoted to act by applying a predetermined shape and form at room temperature or under heating, and then by natural oxidation with air or an oxidant solution. Permanent setting method characterized by processing and fixing the shape and form 6. A treatment agent for fixing the shape and form of hair, which comprises the boron hydride compound according to claim 5.