JP6982917B1 - Softener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To release sericin attached to a fiber after washing via a cationic polymer from the contact between the fiber and the skin and gradually impart it to the skin. To provide an epoch-making softener that can easily impart a sericin function such as a moisturizing effect and a deodorizing effect to the skin and is extremely practical. SOLUTION: A softener containing hydrolyzed sericin and a cationic polymer (cationic chitosan derivative) to which this sericin is electrostatically adsorbed or electrostatically adhered. [Selection diagram] None

Description

INDUSTRIAL APPLICABILITY According to the present invention, hydrolyzed sericin purified from silk (cocoon, silk thread) or sericin produced by sericin powder can be applied to the fibers after washing with a weak force, so that the sericin can be gradually applied to the skin touching the fibers. Therefore, for example, the present invention relates to a new functional softener having a function of not only improving the feel of a fiber but also imparting a moisturizing effect and a deodorizing effect to the skin touching the fiber.

Silk has been used in the clothing field as a high-class material for a long time because it is not only beautiful and soft to the touch, but also has excellent breathability and breathability. Since is a protein composed of several kinds of amino acids, for example, it is given to silk by taking advantage of its characteristics and functionality, and its utilization in cosmetics, foods, and other non-clothing fields is increasing.

For example, sericin is known to have a moisturizing effect and a deodorizing effect due to an antioxidant effect. In order to impart sericin that can be expected to have such a function to the fiber, a cationic surface treatment is applied to the fiber, and further, sericin is used. Research and development of functional fiber products with a protein layer formed on the surface have also been promoted. (Patent Document 1)

However, it is not easy to perform such surface treatment on textile products to further form a sericin protein layer, which leads to high costs and high prices, and there is no choice but to reduce product variations. There was a problem such as not being able to expand.

On the other hand, when sericin is applied to a textile product at a factory as described above, it is applied to the fiber with a strong bonding force (strong adsorption force or strong bonding force), so that the fiber is washed several times. However, even if the function of the fiber itself can be improved by sericin for that reason, the functional effect on the skin covered with the fiber cannot be expected.

On the contrary, if it is applied to the fiber with a weak binding force, sericin will fall off after several washings and it will become a one-shot functional fiber product, which will be less cost-effective and further reduce the commercial value. Become. Therefore, the current situation is that it is not practical and cannot be widely used.

Japanese Unexamined Patent Publication No. 2012-26054

The present invention solves such a problem by focusing on a softening agent (finishing agent) for imparting flexibility to fibers after washing, and instead of strongly imparting sericin to textile products at a factory, for example. By simply adding it during rinsing after washing, not only flexibility but also sericin can be easily imparted to the washed fibers, and moreover, a cationic polymer such as a cationic chitosan derivative and sericin in the solution are electrostatically adsorbed or Electrostatic adhesion (bonded by a light ion bond) This is electrostatically adsorbed or electrostatically attached to the fiber (adhered by a light ion bond), so that sericin can be applied to the fiber with a light bonding force. Therefore, the bond (adsorption) between sericin and the fiber is weak, and while it has durability (functional maintenance) enough to withstand several washings, sericin is moderately released to the skin to give sericin to the skin. Therefore, sericin functions such as moisturizing effect and deodorant effect can be easily imparted to the skin, and this sericin function is repeatedly imparted to the skin via fibers by simply pouring an appropriate amount every few washings. The purpose is to provide an epoch-making softener which is extremely practical and can be used and has excellent cost effectiveness.

The gist of the present invention will be described with reference to the accompanying drawings.

It is a softener that gives flexibility to fibers after washing, and is configured to contain sellicin with hydrolyzed sericin or with sericin powder, and a cationic polymer to which this sericin is electrostatically adsorbed or electrostatically adhered. The sericin that is imparted to the fiber via the cationic polymer by electrostatically adsorbing or electrostatically adhering to the fiber containing water after washing is the sericin. The present invention relates to a softener characterized in that it is configured to separate from the fibers and be applied to the skin because the fibers come into contact with the skin.

Also, the sericin having or negative polarity are negatively charged, via said cationic polymer having a charge to have or positive polarity to positive on the fibers contain water after washing, surface Is configured to be imparted to the fibers that are negatively charged or have a negative polarity, and this sericin is produced by contact between the fibers and the skin and by washing the fibers at home several times. The softener according to claim 1, wherein the softener is configured to be applied to the fiber via the cationic polymer by weak electrostatic adsorption or electrostatic adhesion to the extent that the fiber is detached from the fiber. be.

The softener according to any one of claims 1 and 2, wherein the cationic polymer is a cationic chitosan derivative.

The softener according to any one of claims 1 to 3, wherein the sericin is contained in an amount of 1 to 30%.

The softener according to any one of claims 1 to 4, which is characterized by containing a cationic oily component for enhancing the softening effect.

The softener according to any one of claims 1 to 5, which is characterized by containing a moisturizing component.

The softener according to any one of claims 1 to 6, which is characterized by containing an antibacterial component.

The softener according to any one of claims 1 to 7, wherein fibroin is contained as a component for repairing the skin.

Since the present invention is configured as described above, for example, simply adding it at the time of rinsing after washing can easily impart sericin as well as flexibility to the washed fibers, and moreover, it is cationic such as a cationic chitosan derivative. The polymer and sericin in the solution are electrostatically adsorbed or electrostatically adhered (bonded by a light ionic bond), which is electrostatically adsorbed or electrostatically adhered to the fiber (adhered by a light ionic bond), so that it is light to the fiber. Since sericin can be applied by the binding force, the bond (adsorption) between sericin and the fiber is weak, and it has durability (functional maintenance) enough to withstand several washings, but gradually to the skin. Sericin can be given to the skin by removing sericin, so it is possible to easily give sericin functions such as moisturizing effect and deodorant effect to the skin, and it is repeated by pouring an appropriate amount after every few washings. This sericin function can be imparted to the skin via fibers, and it is an epoch-making softening agent with excellent practicality such as excellent cost effectiveness.

The optimum embodiment of the present invention will be briefly described by showing the operation of the present invention.

Hydrolyzed sericin purified from silk, for example, cocoon, and a cationic polymer to which this sericin is electrostatically adsorbed or electrostatically adhered (attached by a weak ionic bond, for example) will bind to hydrolyzed sericin with this weak force. The softener of the present invention having a composition containing a cationic chitosan derivative) is applied to a fiber containing water after washing (a textile product to be washed). For example, when an appropriate amount is poured into this washing tub during rinsing after washing, the cationic polymer (for example, a cationic chitosan derivative) bonded to the hydrolyzed sericin is electrostatically adsorbed or electrostatically adhered to the fiber (so to speak, weak). By adhering by ionic bonding), the sericin is imparted to the fiber via the cationic polymer with a weak bonding force.

This sericin is bound to the cationic polymer with such a weak force, and the cationic polymer is also bound to the fiber with a weak force. Sericin is gradually detached from the fiber and applied to the skin.

That is, the sericin having charge or negative polarity to negative, the surface via the cationic polymer having, or positive polarity are charged positively is having or negative polarity are negatively charged It can be easily applied to the fiber.

Moreover, since this sericin has a weak bond with the fiber and the cationic polymer as described above (because it is bonded and adhered by a weak force, so to speak, a weak ionic bond), it will fall off after several washings. During this period, the fibers come into contact with the skin, so that the fibers gradually separate from the fibers and sericin can be applied to the skin.

Therefore, the sericin function that gives the skin a moisturizing effect, a deodorizing effect, and the like can be easily imparted to the skin that comes into contact with the fibers.

Therefore, for example, by pouring an appropriate amount after every few washings, not only can the flexibility of the fibers be repeatedly increased or the texture be improved, but also this sericin function (new function) can be repeatedly imparted to the skin via the fibers. It is a softener that is extremely cost-effective.

Explain about the specific embodiments of the present invention.

In this embodiment, the hydrolyzed sericin and the cationic polymer to which the sericin is electrostatically adsorbed or electrostatically adhered are included.

Specifically, for example, underwear, socks, towels and other textile products that come into contact with the skin or are worn directly on the skin are applied to the fibers by diluting them with water at a ratio of about 1 to 1 of the softener of the present invention to 1000 water. For example, the product of the present invention (softener) is applied in an appropriate amount after washing such a textile product at home or after washing by a washing company (for example, in a washing tub at the time of rinsing after washing). Upon pouring, the negatively charged or negatively polar hydrolyzed sericin is negatively charged on the surface via the positively charged or positively polar cationic polymer. It is configured to be applied to the fiber having or having a negative polarity.

That is, the cationic polymer that forms a complex with the hydrolyzed sericin and is bonded to the fiber is electrostatically adsorbed or electrostatically adhered (so to speak, attached by a weak ionic bond) to the fiber via the cationic polymer. The structure is such that the sericin is imparted to the fibers with a weak binding force.

Therefore, this sericin is bound to the cationic polymer with such a weak force, and the cationic polymer is also bound to the fiber with a weak force, so that the fiber to which this sericin is applied comes into contact with the skin. The structure is such that sericin gradually separates from these fibers and is applied to the skin (sericin is gradually imprinted on the skin).

Further, in this embodiment, by imparting the hydrolyzed sericin and the cationic polymer to the fiber surface in this way, the frictional resistance of the surface is reduced and the fiber is made flexible and has a softening effect. However, the fiber is flexible. In order to enhance the effect, a cationic oil component is further added. Further, a cationic surfactant may be added like a general softener.

Further, in this embodiment, as described above, when the fibers come into contact with the skin, sericin is gradually released and the sericin is gradually imprinted on the skin with a weak binding force, or by washing several times, for example. The structure is such that sericin is imparted to the fiber via the cationic polymer (by electrostatic adsorption or electrostatic adhesion) with a weak binding force such that sericin is almost completely detached from the fiber.

Specifically, the appropriate amount is stored in the fabric softener storage box for automatically injecting the fabric softener of the automatic washing machine in the same way as the normal fabric softener at the time of washing at a rate of about once every three times instead of every washing. It is a softener that is automatically put into the washing tub at the time of rinsing, and it will fall off after several washings due to the adhesion due to the weak binding force, but by wearing this textile product until then (with this fiber) (By contact with the skin), the sericin is gradually detached from this fiber, and the sericin is gradually applied to the skin. It is composed of a fabric softener that exerts a new function that can give the skin in contact with fibers a sericin function that suppresses the odor of sweat, suppresses eczema, and keeps the skin clean.

Therefore, for example, by pouring an appropriate amount after every few washings, not only the flexibility of the fiber can be repeatedly increased (the texture can be improved), but also this sericin function (new function) can be repeatedly applied through the fiber. It becomes a softener that can be applied to the skin.

Further, in this embodiment, such an epoch-making action and effect, that is, it can be applied to the fiber by a simple method (for example, only by using it at the time of washing in each household), and it is intentionally applied to the fiber with a moderately weak binding force. An epoch-making new that can give the skin functions such as moisturizing effect by this sericin and deodorizing effect by antioxidative action by removing it moderately (slowly and gradually) and continuously applying sericin to the skin. It can realize a functional softener (it can realize the addition of sericin with a weak bond).

In this example, the above-mentioned cationic polymer capable of realizing such a softening agent has been found, but by repeating the experiment further, it is possible to realize this action and effect among the cationic polymers, which is a coating system. We have found a cationic chitosan derivative that is excellent in moisturizing effect, softening effect, etc., and is excellent in adhering sericin to fibers with the above-mentioned weak binding force by forming a complex with hydrolyzed sericin, and double-blended this with hydrolyzed sericin. It is configured to be used.

In other words, it is realized by a double combination of hydrolyzed sericin, which is a natural moisturizing material, and a cationic chitosan derivative, which makes clothing moist and soft and has a silky touch texture (reduces friction on the skin and finishes it with a smooth feel). At the same time, it is configured so that sericin can be gradually imprinted on the skin while wearing it to impart sericin functions such as skin moisturizing effect and deodorizing effect. If you simply add sericin, it will come off immediately after just one wash, but if you double-blend it with a cationic chitosan derivative, the sericin will fall off from the fibers and the sericin will be imprinted on your skin little by little. This is a new functional softener that can give the skin a moisturizing effect and an antibacterial deodorant effect. (For example, after using the softener of the present invention, the above-mentioned action and effect can be maintained even after washing several times without this softener, and if the softener is used again, this action and effect can be continued repeatedly. Is.)

More specifically, in this embodiment, liquid hydrolyzed sericin (which may be obtained by dissolving dried sericin powder) extracted by putting the cocoon in water and heating it at high temperature and high pressure in a pressure kettle is used. , 1 to 30%, and 0.1 to 5.0% of a cationic chitosan derivative (for example, chitosan isostearamide hydroxypropyltrimonium chloride), and further enhances flexibility. Contains tea catechin that enhances antibacterial properties, glycerin and glycol that enhances moisturizing properties, and fibroin (hydrolyzed fibroin) that is purified from cocoons and silk threads like sericin and gradually imprinted on the skin to give the skin a skin repair effect. It has a structure.

The present invention is not limited to this embodiment, and the specific configuration of each constituent requirement can be appropriately designed.

Claims (8)

A softener that gives flexibility to fibers after washing, and is configured to contain sericin produced by hydrolyzed sericin or sericin powder, and a cationic polymer to which this sericin is electrostatically adsorbed or electrostatically adhered. And
The sericin attached to the fiber via the cationic polymer by electrostatically adsorbing or adhering to the fiber containing water after washing causes the fiber and the skin. A softener characterized by being configured to separate from this fiber and be applied to the skin from contact with. The sericin having or negative polarity are negatively charged, via said cationic polymer having a charge to have or positive polarity to positive on the fibers contain water after washing, surface It is configured to be imparted to said fibers that are negatively charged or have negative polarity.
This sericin is imparted to the fiber via the cationic polymer by weak electrostatic adsorption or electrostatic adhesion to the extent that the fiber comes into contact with the skin and is detached from the fiber after several home washings. The softener according to claim 1, wherein the softener is configured to be.
The softener according to any one of claims 1 and 2, wherein the cationic polymer is a cationic chitosan derivative. The softener according to any one of claims 1 to 3, wherein the sericin is contained in an amount of 1 to 30%. The softening agent according to any one of claims 1 to 4, wherein a cationic oily component for enhancing the softening effect is contained. The softener according to any one of claims 1 to 5, wherein the softener contains a moisturizing component. The softener according to any one of claims 1 to 6, wherein the softener contains an antibacterial component. The softener according to any one of claims 1 to 7, wherein fibroin is contained as an ingredient for repairing the skin.