JP2005248410A - Method for producing aromatic fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing an aromatic fabric, by which microcapsules are adhered to a fiber aggregate such as a woven fabric in a high density to give the aromatic fabric giving a soft finished hand, gradually exuding an encapsulated natural vegetable aromatic essential oil in improved after-aromatic property and exudation persistence to cure the mind and body of a smelling person, thus realizing an aromatherapy effect. <P>SOLUTION: This method for producing the aromatic fabric is characterized by carrying the microcapsules comprising a synthetic polymer encapsulating a natural vegetable aromatic essential oil, having an average particle diameter of ≤1μm, and an average wall film thickness of ≤0.1μm on the fabric with a binder resin in a step for finish-processing the woven fabric. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for producing an aromatic fabric in which the fabric has a physiological psychological function of healing human mind and body.

  Conventionally, microcapsules containing substances (such as ascorbic acids, tocopherols, seaweed extracts, antipruritics, analgesics) and fragrances that have an effect of improving the physiological state of the skin (itch, pain, roughness, etc.) It is attached to textile products (eg, stockings, underwear, pillows, etc.), and when worn or used, the microcapsules are crushed and cracked with intentional friction to gradually leach out the built-in components, thereby physiology of the skin A technique for improving the mental state and leading to a good sleep is disclosed (Japanese Patent No. 2562233).

Japanese Patent No. 2562233

Problems to be solved by the invention

  However, the microcapsules according to the above prior art have a particle size as large as 2 to 300 μm, so that they cannot be reliably attached to individual fibers. It becomes difficult to adhere to the density, and it is not possible to improve the fragility and leaching sustainability of the leaching built-in component by crushing the microcapsules. Moreover, since the wall film thickness is as thick as 0.3 to 4 μm, there is a possibility that the texture of the fiber becomes hard even if it is attached to the fiber, coupled with the large particle diameter.

Means for solving the problem

  The present inventor has found that the above problems are the particle size of the microcapsule and the film thickness of the wall film, and that these are formed with minute values, and the components of the internal organs are natural plant aromatic essential oils. And the present invention has been completed by finding that an aromatherapy effect can be realized.

  That is, the present invention for solving the above-mentioned problems is a microcapsule made of a synthetic polymer substance containing a natural vegetable aromatic essential oil, having an average particle size of 1 μm or less and an average wall membrane of 0.1 μm. A method for producing an aromatic fabric, characterized in that a microcapsule having the following film thickness is supported on a fabric by a binder resin in a finishing process of the fabric.

The invention's effect

  According to the method of the present invention, the microcapsules can be reliably attached to individual fibers, and high-density adhesion can be realized as a fiber assembly, so that the texture of the fiber assembly such as a fabric can be finished softly. Can do. The microcapsule particle size and the wall film thickness are made minute, which slows the leaching of the built-in natural plant aromatic essential oil, allowing the fragrance to be diffused over a long period of time. And the leaching sustainability is greatly improved. Furthermore, the leaching of natural vegetable aromatic essential oils can heal the mind and body of the person who smells it and realize an aromatherapy effect.

  The microcapsule for realizing the method of the present invention can be produced by a known method such as an IN SITE polymerization method or an interfacial polymerization method. At that time, the average particle size can be adjusted to 1 μm or less by adjusting the strength of stirring during the production of the microcapsules and setting the concentration of the emulsifier. Further, the average film thickness of the wall film can be 0.1 μm or less by controlling the concentration of urea or melamine in the oil droplets.

  Lavender essential oil is most preferable as a natural vegetable aromatic essential oil incorporated in the microcapsule, but other examples include chamomile, lemon, sandalwood, jasmine, basil, rose, peppermint, bergamot, marjoram, eucalyptus, rosemary and the like. It is also possible to use essential oils.

  The binder resin for supporting the microcapsules on the cloth is not particularly limited as long as it is a known one such as silicon, urethane, vinyl acetate, acrylic, phenol, etc., but is a silicone that forms rubbery skin. And urethane resins are preferred in terms of durability and pressure buffering properties.

  In addition, as fabrics for supporting microcapsules, wool, blends of wool and other fibers, woven or knitted wool and other fibers, cellulosic natural fibers such as cotton, hemp, ramie, polyester, rayon, nylon, etc. Synthetic fibers are applied.

  Microcapsules containing lavender essential oil, having an average particle size of 1 μm or less and a wall film thickness of 0.1 μm or less were obtained by a known production method. An appropriate amount of the lavender-embedded microcapsule was placed in a pad tank 1 containing an appropriate amount of water together with a 0.5-5% urethane-based binder resin and stirred to obtain a treatment solution. The cloth C is guided to the squeezing roller 3 through the adhering solution in the pad tank 1 by the plurality of guide rollers 2 and then passes through the dryer 4. While the fabric C passes through the treatment solution in the pad tank 1, the fabric C absorbs and adsorbs the lavender-embedded microcapsules by the binder resin. Thereafter, the fabric C is guided to the dryer 4 and dried at 80 ° C. to 120 ° C., whereby the lavender-embedded microcapsules are thermally fixed and supported on the fabric C. The lavender-embedded microcapsule carried on the fabric C has a very small particle diameter and film thickness as described above, so that high-density adhesion to the fabric C is realized, and the texture of the fabric C itself is soft. It was finished.

  A sensory test was performed by 20 male subjects aged 22-27 years old using an aromatic fabric (woven fabric) produced by the method of the present invention and a raw fabric. The inspection adopted a method of sniffing the object directly. As a result, there was no sensual answer for raw fabrics, but for aromatic fabrics, 22% of subjects answered “healing”, 16% “settled”, 27% “freshness”, “cleanliness” It was found that 22% of “Others” was 13%, and 87% of subjects felt a comfortable feeling of comfort.

  It is a schematic block diagram which shows an example of the manufacturing apparatus which enforces the method of this invention.

Explanation of symbols

1 Pad tank
2 Guide rollers
3 Drawing roller
4 dryers
C fabric

Claims (1)

A microcapsule made of a synthetic polymer substance containing a natural vegetable aromatic essential oil, the microcapsule having a particle diameter in an average range of 1 μm or less and a wall film having an average thickness of 0.1 μm or less. A process for producing an aromatic fabric, wherein the fabric is supported by a binder resin in the finishing processing step.

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