JPH01260066A - Aromatic woven and knitted fabric and aromatic cloth - Google Patents

Abstract

PURPOSE:To obtain aromatic woven and knitted fabric having durability, by providing fiber products with a mixture of perfume-containing microcapsules and a silicon resin binder in a specific ratio. CONSTITUTION:Woven and knitted fabric consisting of natural, regenerated or synthetic fibers is provided with an emulsion of a mixture of perfume- containing microcapsule and as silicone resin binder in the weight ratio of 2:1-1:5, heat-treated and coated with 0.3-7wt.% based on weight of the woven and knitted fabric of the mixture. By this method, since capsules are broken little by little in wearing and a preferable fragrance is emitted, sufficient durability is exhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to aromatic woven and knitted fabrics and clothing, in particular l
Microcapsules containing a woven or knitted fabric fragrance are attached to woven or knitted fabrics and clothing to which they are imparted with a durable fragrance.

(Prior Art) Various developments have been made in the past regarding clothing that has aromatic properties, and many of them have appeared on the market. However, most of these products are simply sprayed with perfume on the final product, and others are simply coated with fragrant substances on the surface, and the fragrance disappears as the perfume evaporates. It had poor washing resistance, and the fragrance completely disappeared after one wash.

Therefore, processing methods to maintain the fragrance for a long period of time are disclosed in Japanese Patent Publication No. 53-47440 and Japanese Patent Application Laid-open No. 54-11228.
Many proposals have been made, including Publication No. 3).

Under these circumstances, various attempts have been made to impart fragrance to woven and knitted fabrics and clothing. Conventionally, this has been done either by spraying perfume at the time of finishing, or by enclosing aromatic paper in a packaging bag during packaging, or by using 8 papers as aromatic paper to release the scent! [It was like transferring it to things, clothes.

Furthermore, JP-A-61-63716 proposes an aromatic core-sheath type composite fiber in which a fragrance is dispersed and mixed in the core and has a hollow part in the core. There was a problem in that the perfumes that could withstand melt spinning were limited because of the deterioration in quality.

(Problems to be Solved by the Invention) However, it goes without saying that the clothes obtained as described above have poor fragrance durability;
The fragrance completely disappeared after washing twice, and the product had extremely low commercial value. Furthermore, the fragrance quickly evaporates when it comes into contact with the outside air while being worn, and some products even maintain their fragrance for only a few hours after being worn. In addition, in cases where the scent of aromatic paper is transferred to clothing in a packaging bag, the strength of the fragrance varies depending on the time elapsed after the bag is sealed, and as a result, the scent is not pleasant and the product itself may be defective. There were cases where this happened.

In view of the above-mentioned circumstances, the inventors of the present invention have conducted repeated studies with the aim of imparting a durable fragrance to handmade products and clothing. We found that it is suitable for

However, the present invention provides that a fragrance can be maintained for a long time by attaching microcapsules containing a fragrance to woven or knitted fabrics or clothing, and that the microcapsules may be torn little by little due to friction during wear or may be intentionally rubbed. This method focuses on the fact that this produces a divergent effect. However, JP-A-49-19197 and JP-A-52-312
If microcapsules and a binder are simply attached to a woven or knitted fabric, as disclosed in No. 00, or by a transfer printing method, as disclosed in JP-A-53-106885, they are sufficiently durable. It is not possible to impart a distinctive fragrance. Furthermore, there was a problem in that the binder penetrated into the weaving and knitting yarns, resulting in an extremely hard texture.

The present invention was made based on the above-mentioned knowledge, and satisfies the effects of 1. desirable fragrance emission and fragrance sustainability without impairing the texture of the woven or knitted fabric itself. The purpose of the present invention is to provide aromatic m4I products and clothing that can be used.

(Means for Solving the Problems) That is, the present invention provides a woven or knitted fabric to which fragrance-containing microcapsules are attached, wherein the microcapsules and silicone resin binder are in a ratio of 2:1 to 1:5 (weight ratio). ), and the amount of both of these substances attached accounts for 0.3 to 7.0% of the weight of the woven or knitted fabric in the adhered portion, and clothing made from the same.

And this fragrance I! A preferred method for processing knitted fabrics and clothing is to apply a treatment agent containing a mixture of fragranced microcapsules and a silicone resin binder to woven fabrics and clothing that have been previously subjected to water-repellent treatment by dipping, banding, coating, or printing. There is a way.

In the present invention, [1] refers to a known woven or knitted fabric, and the woven or knitted fabric may be any of natural fibers, recycled fibers, synthetic fibers, blends thereof, gold threads, mixed fibers, etc. good,? 8. In terms of water treatment, a larger basis weight is more advantageous; on the other hand, extremely small items such as stockings have disadvantages such as a hard texture and loss of transparency. Furthermore, from the viewpoint of binder adhesion, fibers having irregularities such as cotton, porous fibers having macrovoids, or fibers having affinity with the binder are advantageous.

Furthermore, the woven or knitted fabric used in the present invention is preferably subjected to a water-repellent treatment (preferably, in order to prevent the binder from penetrating into the woven or knitted yarns or into the grains of the fabric and hardening the texture, which will prevent the binder and the microcapsules from forming together). Known methods can be used to treat RN water, which mainly adheres to the surface of the fabric and does not impair the original texture of woven or knitted fabrics, but for applications that do not require water repellency, it is possible to simply impregnate a relatively small amount of treatment agent. All you need to do is post-drying 0 For example, impregnating and drying an emulsion made by adding an emulsifier and protective colloid to aluminum acetate and paraffin, or using an emulsion made by adding an emulsion of methylhydrodiene polysiloxane and metal soap after impregnation and drying. There are methods such as heat treatment.

Clothes in the present invention may be clothes that are mainly M&I items, such as suits, uniforms, sweaters, skirts, slacks, cardigans, pajamas, and lingerie.
Examples include sportswear, dress shirts, shirts, and casual wear.

The composition of the fragrance-containing microcapsules used in the present invention is not particularly limited as long as it can be broken by appropriate friction and emit a fragrance, but low-formalin microcapsules are preferred.

Therefore, the particle size is usually about 5 to 20 μm, and the capsule thickness is 0.3 to 3 μm, preferably 0.5 to 20 μm.
It is 1.5 μm. Various manufacturing methods have been developed for microcapsules, and a representative example is the method described in Japanese Patent Publication No. 37-7724.

The silicone resin binder used as a binder is
It has a coating effect and plays a role as an adhesive between the microcapsules and the knitted fabric, and is mainly made of silicone-based aqueous emulsion type, such as organopolysiloxane, which has excellent dispersibility in water and can be easily diluted with water. Preferably, the component is emulsified with an emulsifier, which hardens upon removal of water to form a rubbery film that has the characteristics of silicone rubber and provides a durable adhesive effect.

This coating material is applied to the microcapsules.
It is applied 5 to 5 times, preferably 1 to 2 times (weight ratio), and exhibits a sufficient adhesive effect. If it is less than 0.5 times, the coating effect will be extremely poor, while if it is more than 5 times the amount, the adhesion rate of microcapsules will hardly change, and on the contrary, it will cause problems in the soft texture of woven and knitted fabrics and clothing. This is undesirable, and the amount of adhesion of both of these is
It usually accounts for 0.3 to 7.0%, preferably 0.5 to 3.0%, of the mw weight of the attached portion. That is, since the microcapsules are sufficiently attached to the woven or knitted fabric by being provided with the silicone resin binder in the above proportion,
If the adhesion amount of both of these is less than 0.3%, both the strength and durability of the fragrance are insufficient, while on the other hand, if it is more than 7.0%! 1! There is also a problem with the feel of the knitted fabric, and sometimes the scent it emits is too strong, both of which are unsuitable. In other words, the above-mentioned amount of adhesion satisfies all the requirements of having a desirable scent dispersion effect, a suitable texture and flexibility, and the fragrance having appropriate durability.

It is preferable to apply a silicone resin binder to a final product such as clothing that does not undergo a post-processing process, and the product may be immersed in a treatment liquid bath made of a silicone resin binder, and then dehydrated and dried in a manner that does not impair the texture.

(Example) The following seven types of dyed woven and knitted fabrics and clothes were treated with water repellency according to a standard method (water dyeing softener: the main component is methylhydrodiene polysiloxane), and microcapsules containing urea-based resin fragrance were used. 10g/l (jasmine fragrance, average particle size 8μm, film thickness 1μm) of silicone-based aqueous emulsion whose main component is epoxy-modified dimethylpolysiloxane resin 30g/j! The adhesion amount of microcapsules mixed with 0 is 1! The emulsion is dipped into a woven or knitted fabric to a concentration of 0.45% based on the weight of the knitted fabric or the clothing material to which it is attached, then centrifugally dehydrated to achieve a pick-up rate of 100%, dried, and heated at 120 to 130°C for 1 minute. It was subjected to moist heat treatment. In this way, the fragrance-containing microcapsules were attached to I! The knitted fabrics and clothes were dried according to a standard method and sent to a finishing and setting process to make aromatic mw fabrics or fragranced clothes.

■ Interlock of cotton Ne40/2■ Single jersey of cotton Na40/2■
Sweater knitted with cotton N e 18/4 colored yarn,■
Cardigan knitted with 50% cotton, 50% water-absorbing porous acrylic, Ne18/4 colored thread, ■ 65% polyester
35% rayon Ne40 (122 x 79/inch) twill weave, ■ 50% polyester 50% cotton Ne45
(120XT6/inch) dobby weave, black-dyed fabric with pear-skinned zizzette lining and satin lining (220X87/inch) using 75d/36f mixed filament twisted yarn of normally spun U-section filaments and high-speed spun round-section filaments (220X87/inch) A sports sweatshirt was made from the above woven and knitted fabric (1), a sports shirt was made from (2), a dress shirt was made from (2) and (2), and a formal wear was made from (2), and then the washing durability and texture were tested.

The washing resistance test was conducted according to the JIS L0217401 method, and was expressed as the number of times until the fragrance disappeared.

・Also, the fragrance was evaluated by 10 people on a 5-point scale (0 points are given for those emitting the optimal fragrance, +1 and +2 for those that are too strong above and below that, and -1 and -2 for those that are too weak) ) and the average score was taken as the evaluation score. Regarding the feel, those that the same <10 people felt were good, slightly inferior, and inferior were set as 0, -1, and -2, respectively, and the average score was used as the evaluation score.

Looking at these results, it becomes clear that the aromatic clothing according to the present invention has achieved the objectives of our laboratory, that is, it has a durable, pleasant scent and a good texture. Dew.

(Effects of the Invention) The present invention achieves the following effects with the configuration described above.

First, since microcapsules containing fragrance are attached to clothing, the capsules break little by little during wear or due to intentional friction, releasing a suitable fragrance. Therefore, the scent is not released all at once and disappears,
It has sufficient durability.

In addition, by applying a silicone resin as a binder to the microcapsules in an appropriate proportion, the adhesive strength and adhesion properties are significantly improved, and the desired adhesion amount and fragrance durability are achieved.

The processing method does not require complicated processing steps, and the aromatic fabric according to the present invention is applied by applying a processing agent containing a mixture of microcapsules and a silicone resin binder in an appropriate ratio and performing a heat treatment. This is a reliable method for producing knitted fabrics and clothing.

Claims (2)

[Claims] (1) A woven or knitted fabric to which fragrance-containing microcapsules are attached, in which the microcapsules and silicone resin binder are provided at a ratio (weight ratio) of 2:1 to 1:5, and the amount of these two attached is 0.3 of the weight of the woven or knitted fabric in the attached area
Aromatic woven and knitted fabrics account for ~7.0%. (2) A garment made from the aromatic woven or knitted fabric according to claim 1.