KR20170119696A - Cyclodextrin-containing sheet - Google Patents

Abstract

A cyclodextrin-containing sheet excellent in release performance of a functional ingredient is provided. A cyclodextrin-containing sheet provided with a cyclodextrin-containing layer in which a functional ingredient is enclosed, wherein the cyclodextrin-containing layer is formed by a dry method.

Description

Cyclodextrin-containing sheet

The present invention relates to a sheet containing a cyclodextrin. The cyclodextrin-containing sheet of the present invention is useful as a sheet for medical use such as a food tray mat, a food packaging sheet, a beauty sheet, a cold feeling sheet and an insect repellent sheet, a mask, a water towel and a medical and sanitary sheet , A cleaning sheet, and the like.

Cyclodextrin is a cyclic oligosaccharide having an internal cavity, and has the capability of attracting various molecules in the internal cavity in the presence of water to form an entangled body because the inside is hydrophobic and the outside is hydrophilic. Cyclodextrins also have a sustained release capability to slowly release molecules drawn into the interior. Cyclodextrins are used in various fields such as foods, cosmetics, and toilets, pharmaceuticals, cleaning products, medical products, and miscellaneous goods due to the gelatinization-forming performance and the western performance.

For example, Patent Document 1 discloses a water-soluble cyclodextrin film containing an antibacterial agent or insect repellent agent that can be used for the wrapping of food or the inner surface of a storage container. In Patent Document 1, a water-soluble cyclodextrin film is obtained by applying a cyclodextrin solution containing an antimicrobial agent or an insect repellent to a surface of a substrate such as glass, plastic, paper, and nonwoven fabric by means of spraying or brushing, and drying .

Patent Document 1: JP-A-2002-29901

However, in Patent Document 1, a film is formed by using an aqueous solution of cyclodextrin having water-soluble film-forming ability, to which an antimicrobial agent or insect repellent agent is added. In this case, since the antibacterial agent or the insect repellent agent can enter and leave the inner cavity of the cyclodextrin in the aqueous solution, when the film is formed, the whole amount of the antibacterial agent or the insect repellent agent added to the aqueous solution is contained in the cyclodextrin, It can not be said to be included. In the formed film, it is considered that the antimicrobial agent or the insect repellent agent which is not encapsulated in the cyclodextrin is released from the film earlier than the encapsulated film.

An object of the present invention is to provide a cyclodextrin-containing sheet excellent in the release performance of a functional ingredient.

The present invention for solving the above-mentioned problems has the following embodiments.

[1] A cyclodextrin-containing sheet comprising a cyclodextrin-containing layer in which a functional ingredient is enclosed, wherein the cyclodextrin-containing layer is provided by a dry method.

[2] The method according to [1], wherein the cyclodextrin-

The cyclodextrin-containing sheet according to [1], wherein a powder of the cyclodextrin is held in a gap formed by the fibers.

[3] The thermoplastic resin composition according to any one of [1] to [4], wherein the cyclodextrin-

The cyclodextrin-containing sheet according to [1] or [2], wherein the cyclodextrin-containing layer is obtained by melting the heat-sealable resin A in a mixture comprising the powder of the cyclodextrin and the heat-sealable resin A.

[4] The thermosetting resin composition according to any one of [1] to [4], wherein the layer adjacent to the cyclodextrin-

The layer adjacent to the cyclodextrin-containing layer is any one of [1] to [3] obtained by disposing the heat-sealable resin B on the surface of the cyclodextrin-containing layer and melting the heat-sealable resin B by heat ≪ / RTI > wherein the cyclodextrin-

[5] The cyclodextrin-containing sheet according to any one of [1] to [4], which is heat sealed.

[6] The cyclodextrin-containing sheet according to any one of [1] to [5], wherein an adhesive layer is provided adjacent to the cyclodextrin-containing layer.

[7] The cyclodextrin-containing sheet according to any one of [1] to [6], which is embossed.

[8] The cyclodextrin-containing layer according to any one of [3] to [7], wherein the powder of the cyclodextrin is adhered in a partially covered state by the heat-sealable resin A Sheet.

[9] The cyclodextrin-containing layer according to any one of [4] to [7], wherein the powder of the cyclodextrin is adhered in a partially covered state by the heat-sealable resin B Sheet.

[10] The cyclodextrin-containing sheet according to any one of [1] to [9], wherein the cyclodextrin powder in the cyclodextrin-containing layer is substantially uniformly distributed in the in-plane direction and the thickness direction.

[11] The cyclodextrin-containing sheet according to any one of [1] to [9], wherein the cyclodextrin powder in the cyclodextrin-containing layer exists in a localized manner in at least one of an in-plane direction and a thickness direction.

The cyclodextrin-containing sheet of the present invention is a sheet provided with a cyclodextrin-containing layer in which a functional ingredient is enclosed, and the cyclodextrin-containing layer is prepared by a dry method.

In the present invention, since the cyclodextrin-containing layer is provided by the dry method, the cyclodextrin in a state in which the functional ingredient is enclosed can be included in the sheet without passing through water. Therefore, the functional ingredient can be contained in the sheet as it is encapsulated in the cyclodextrin, and in the produced sheet, the functional ingredient can be gradually released by contact with moisture by the sustained performance of the cyclodextrin. As a result, the sheet of the present invention is excellent in the release performance of the functional component and can exhibit good functional ingredient releasing performance even after a certain period of time has elapsed since the sheet was produced. Further, the cyclodextrin that has released the functional ingredient can cover other components, so that it can exhibit, for example, a deodorizing function.

Further, in the present invention, since the cyclodextrin-containing layer is provided by the dry method, the cyclodextrin can maintain its shape when added to the sheet in the sheet. Since the cyclodextrin can be contained in the sheet without dissolving the cyclodextrin, the amount of the cyclodextrin in the sheet can be increased. Further, since the component encapsulated in the cyclodextrin can be blended without being in contact with water, it is possible to prevent the inclusion component from being shifted into water or volatilized from the cyclodextrin. In addition, it is possible to localize the cyclodextrin easily at any portion in the in-plane direction and the thickness direction of the sheet.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a constitutional example of a cyclodextrin-containing sheet of the present invention. Fig.
2 is a diagram showing an example of a layer configuration suitable for each use of the cyclodextrin-containing sheet of the present invention.
3 is a schematic diagram showing a web forming apparatus usable in the method for producing a cyclodextrin-containing sheet of the present invention.

(Cyclodextrin-containing sheet)

The cyclodextrin-containing sheet of the present invention is a sheet provided with a cyclodextrin-containing layer in which a functional ingredient is enclosed, and the cyclodextrin-containing layer is prepared by a dry method.

In the present specification, the term " cyclodextrin encapsulated with a functional ingredient " is not necessarily limited to the case where the entire amount of the cyclodextrin having the encapsulating ability encapsulates the maximum amount of the functional ingredient. That is, the 'cyclodextrin in which the functional ingredient is encapsulated' in the present specification may contain, in addition to the cyclodextrin in which the functional ingredient is encapsulated, a so-called empty cyclodextrin in which the functional ingredient is not encapsulated .

The constitution of the cyclodextrin-containing sheet included in the scope of the present invention will be described with reference to Fig. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing the constitution of the cyclodextrin-containing sheet of the present invention for the purpose of illustration, not for the purpose of limitation; In the drawings, the same reference numerals denote like elements. As for the same constituent elements, redundant explanations may be given.

1 (a) to 1 (c) show a cyclodextrin-containing sheet comprising a cyclodextrin-containing layer 100 encapsulating a functional ingredient according to the present invention. Fig. 1 (a) is a cyclodextrin-containing sheet comprising only the cyclodextrin-containing layer 100. Fig. 1B and 1C are cyclodextrin-containing sheets in which another layer 300 is laminated on one side or both sides of the cyclodextrin-containing layer 100.

The cyclodextrin-containing sheet of the present invention may have a single layer structure as described above, or may have a multilayer structure of two or more layers, or four or more layers not shown. The cyclodextrin-containing sheet may contain two or more layers of the cyclodextrin-containing layer (100). The other layer 300 may be arranged for the purpose of modifying the surface of the cyclodextrin-containing sheet or for imparting some functionality to the cyclodextrin-containing sheet, for example, for imparting strength (rigidity) to the cyclodextrin- can do. For the other layer 300, for example, sheets of nonwoven fabric, paper, film, or the like can be used. The other layer (300) may contain a thermosetting resin. When the cyclodextrin-containing sheet has a plurality of layers 300, these layers 300 may be the same material or different materials.

The cyclodextrin-containing layer 100 may contain only the cyclodextrin C encapsulated with the functional ingredient. At this time, it is not limited to one kind but may include cyclodextrin C in which a plurality of kinds of functional components are encapsulated. That is, each of the functional ingredient and the cyclodextrin may be one kind or plural kinds. The kind of the functional ingredient and the kind of the cyclodextrin will be described later.

The cyclodextrin-containing layer 100 may contain fibers, heat-sealable resins, additives, and the like in addition to the cyclodextrin C encapsulated with the functional ingredient.

A specific embodiment as shown in the following first to sixth embodiments will be described as an example of a constitution in which cyclodextrin C in which a functional ingredient is enclosed from a cyclodextrin-containing sheet is free from dusting.

(First Embodiment)

Fig. 1 (d) shows an example in which the cyclodextrin-containing layer 100 enclosed with the functional component contains the fiber F. Fig. In the cyclodextrin-containing layer 110 containing the fibers F, the powder of the cyclodextrin encapsulating the functional component is held in the voids in the fiber structure constituted by the voids formed by the fibers F, that is, the fibers F, .

The cyclodextrin-containing layer 110 containing the fibers may contain only the cyclodextrin C and the fiber F enclosing the functional ingredient. The cyclodextrin-containing layer 110 containing fibers may further include a heat-sealable resin and additives in addition to the cyclodextrin C and the fiber F enclosing the functional component. The fiber F itself may be a thermally fusible resin.

In the present embodiment, the cyclodextrin-containing sheet may be provided on one or both sides of the cyclodextrin-containing layer 110 containing the fibers F for the purpose of imparting functionality such as surface modification and strength (rigidity) Layer structure (not shown) may be provided.

That is, the cyclodextrin-containing sheet of the first embodiment of the present invention is a single layer structure or a multilayer structure comprising a cyclodextrin containing a functional ingredient and a cyclodextrin-containing layer containing fibers. The powder of the cyclodextrin in which the functional ingredient is enclosed may be held in a void formed by the fibers constituting the cyclodextrin-containing layer in the cyclodextrin-containing layer. Such a configuration can be realized by a dry method such as an air-laid method. The powder of the cyclodextrin in which the functional ingredient is enclosed may be distributed over the whole or part of the cyclodextrin-containing layer. That is, the powder of the cyclodextrin in which the functional ingredient is enclosed may be substantially uniformly distributed in the in-plane direction and the thickness direction in the cyclodextrin-containing layer. Alternatively, the powder of the cyclodextrin in which the functional ingredient is enclosed may be present in a localized manner in at least one of the in-plane direction and the thickness direction in the cyclodextrin-containing layer. The distribution of the cyclodextrin powder in the cyclodextrin-containing layer can be appropriately determined by appropriately setting the method of preparing the raw material (mixing or non-mixing of the raw materials), the order of dispersion, and the scattering position when the layer is formed by the dry method such as air- The control can be performed.

(Second Embodiment)

Fig. 1 (e) shows an example in which the cyclodextrin-containing layer 100 encapsulating the functional component includes the heat-sealable resin A. Fig. The cyclodextrin-containing layer 120 containing the heat-sealable resin A is obtained by melting the heat-sealable resin A in the mixture containing the powder of the cyclodextrin in which the functional ingredient is enclosed and the heat-sealable resin A.

In the cyclodextrin-containing layer 120 including the heat-sealable resin A, the cyclodextrin C encapsulated with the functional component is fixed in a partially covered state when the molten thermosetting resin A is solidified, Is prevented. Further, the heat-sealable resin A is compounded in such an amount as not to cover the entirety of the cyclodextrin C enclosing the functional ingredient, and the cyclodextrin C enclosed by the functional ingredient is not covered with the heat-sealable resin A , And the ability to release functional ingredients is assured.

The cyclodextrin-containing layer 120 including the heat-sealable resin A may contain only the cyclodextrin C and the heat-sealable resin A encapsulating the functional component. The cyclodextrin-containing layer 120 including the heat-sealable resin A may contain fibers, additives, and the like in addition to the cyclodextrin C and the heat-sealable resin A encapsulating the functional component. The heat-sealable resin A itself may be in the form of a fiber.

In the present embodiment, the cyclodextrin-containing sheet may be provided on one side or both sides of the cyclodextrin-containing layer 120 including the heat-sealable resin A for the purpose of imparting functionality such as surface modification and strength (rigidity) (Not shown) in which the other layers 300 are laminated.

That is, the cyclodextrin-containing sheet of the second embodiment of the present invention is a single-layer structure or a multi-layer structure comprising a cyclodextrin-containing layer containing a functional component and a thermosetting resin. In the cyclodextrin-containing layer, the cyclodextrin encapsulated with the functional component is adhered in a state that a part of the cyclodextrin is covered with the heat-sealable resin. In the cyclodextrin-containing layer, the cyclodextrin encapsulating the functional ingredient may have a powder form.

(Third Embodiment)

Fig. 1 (f) shows an example in which the layer adjacent to the cyclodextrin-containing layer 100 enclosing the functional component includes the heat-sealable resin B. Fig. The layer 200 including the heat-sealable resin B adjacent to the cyclodextrin-containing layer is obtained by disposing the heat-sealable resin B on the surface of the cyclodextrin-containing layer 100 and melting the heat-sealable resin B by heat.

The cyclodextrin C encapsulated with the functional ingredient contained in the cyclodextrin-containing layer 100 is a part of the thermally fusible resin B adjacent to the cyclodextrin C when the molten thermally fusible resin B is solidified, So that powder dust is prevented. Further, the cyclodextrin C in which the functional ingredient is enclosed has a portion which is not covered with the heat-sealable resin B, and the performance of releasing the functional ingredient is assured.

The layer 200 including the heat-sealable resin B may contain only the heat-sealable resin B. Further, the layer 200 including the heat-sealable resin B may contain fibers, additives, and the like in addition to the heat-sealable resin B. When these other components are included, the layer 200 including the heat-sealable resin B is obtained by arranging a mixture of the heat-sealable resin B and these other components on the surface of the cyclodextrin-containing layer 100, Can be obtained by melting the fusion-bondable resin (B).

The cyclodextrin-containing sheet of the example shown in Fig. 1 (f) specifically comprises a layer 200 comprising a heat-sealable resin B and a cyclodextrin-containing layer 100 comprising a powder of a cyclodextrin encapsulated with a functional ingredient, And a cyclodextrin-containing layer 120 including a heat-sealable resin A. The three- In this case, the cyclodextrin-containing layer 120 including the heat-sealable resin A may also contribute to prevention of dusting of the cyclodextrin contained in the cyclodextrin-containing layer 100 positioned as the intermediate layer. Here, the cyclodextrin-containing layer 100 and the cyclodextrin-containing layer 120 including the heat-sealable resin A have been shown and described as separate layers. However, since the two layers are integrally formed, The constitution of the cyclodextrin-containing layer 120 including the fusion-bondable resin A is also included in the present embodiment. According to the present embodiment, in particular, in the cyclodextrin-containing layer 120 including the heat-sealable resin A, when the powder of the cyclodextrin is localized on the surface side, dusting can be effectively prevented.

In the present embodiment, the layer 200 including the heat-sealable resin B may be provided on both sides of the cyclodextrin-containing layer enclosed with the functional component.

In the present embodiment, the cyclodextrin-containing sheet is a laminate of the layer 200 including the cyclodextrin-containing layer and the heat-sealable resin B for the purpose of imparting functions such as surface modification and strength (rigidity) (Not shown) in which another layer 300 is laminated on one surface or both surfaces of the outer surface of the substrate 300.

That is, the cyclodextrin-containing sheet of the third embodiment of the present invention is a multilayer structure comprising a cyclodextrin-containing layer containing a layer containing a heat-sealable resin and a cyclodextrin encapsulating a functional ingredient adjacent thereto. In the cyclodextrin-containing layer, the cyclodextrin encapsulated with the functional ingredient may be adhered to the heat-sealable resin derived from the layer containing the adjacent heat-sealable resin in a state that a part thereof is covered. In the cyclodextrin-containing layer, the cyclodextrin encapsulating the functional ingredient may have the form of a powder. Further, in the entire cyclodextrin-containing sheet of the present embodiment, the cyclodextrin encapsulated with the functional ingredient is unevenly distributed in the thickness direction.

(Fourth Embodiment)

The above-described cyclodextrin-containing sheet according to the present invention may be formed by a sealing process such as a heat sealing process or an ultrasonic sealing process. As an example, FIG. 1 (g) shows a structure in which another layer 300 including a heat-sealable resin is laminated on both sides of a cyclodextrin-containing layer 100 encapsulating a functional component, .

That is, the cyclodextrin-containing sheet according to the fourth embodiment of the present invention has a structure in which two outer layers (another layer 300) partially fused and a functional component Layered structure including the cyclodextrin-containing layer 100 enclosed therein. Such a configuration can be easily realized by a sealing process.

In the example of Fig. 1 (g), since the oblique sides are fusion-bonded, an envelope-shaped portion is formed between the two outer layers. And the envelope-shaped portion may include a cyclodextrin-containing layer 100 encapsulating a functional component.

By successively fusing the oblique sides, the envelope-like portion can be put in a sealed state. For example, when the cyclodextrin-containing layer 100 in which the functional ingredient is enclosed is composed only of the powder of the cyclodextrin encapsulated with the functional ingredient, the powder may be present in the form of powder in the closed envelope portion . At this time, the powder may be allowed to flow without being fixed in the inside of the sealed envelope portion.

The position of the seal processing can be set appropriately. For example, the sealing may be added to the oblique side of the seal to form a central portion of the seal, for example, in a line, and the envelope portion may be divided into a plurality of continuous or non-continuous sections. The cyclodextrin-containing layer 100 enclosed with the functional ingredient may be dispersed in such a plurality of compartments.

(Fifth Embodiment)

1 (h) shows an example in which an adhesive layer is provided adjacent to the cyclodextrin-containing layer 100 enclosing the functional ingredient. The adhesive layer 500 adjacent to the cyclodextrin-containing layer is obtained by disposing the adhesive layer 500 on the surface of the cyclodextrin-containing layer. The adhesive layer is not particularly limited as long as it is a layer exhibiting an adhesive function to prevent flaking of the cyclodextrin contained in the cyclodextrin-containing layer 100, for example, a hot-melt adhesive, and the like.

More specifically, the cyclodextrin-containing sheet shown in FIG. 1 (h) is a sheet made of a hot-melt adhesive such as a thermoplastic resin, for example, between the cyclodextrin-containing layer 100 enclosed with the functional component and the other layer 300 And the adhesive layer 500 is interposed therebetween, and the layers are interlaminated by hot-melt processing.

More specifically, the cyclodextrin-containing sheet of the example shown in FIG. 1 (h) has a cyclodextrin-containing layer 120 (FIG. 1 (h)) containing a thermally fusible resin A on the side opposite to the adhesive layer 500 of the cyclodextrin- ). 1 (h), the cyclodextrin-containing layer 120 including the heat-sealable resin A is formed in the same manner as the cyclodextrin-containing sheet of the example shown in Fig. 1 (f) Contributing to prevention of flaking of the cyclodextrin contained in the dextrin-containing layer (100). Here, the cyclodextrin-containing layer 100 and the cyclodextrin-containing layer 120 including the heat-sealable resin A have been shown and described as separate layers. However, since the two layers are integrally formed, The constitution of the cyclodextrin-containing layer 120 including the fusion-bondable resin A is also included in the present embodiment. According to the present embodiment, in particular, in the cyclodextrin-containing layer 120 including the heat-sealable resin A, when the powder of the cyclodextrin is localized on the surface side, dusting can be effectively prevented.

That is, the cyclodextrin-containing sheet of the fifth embodiment of the present invention is a multilayer structure comprising a cyclodextrin-containing layer containing an adhesive layer having an adhesive function such as an adhesive and a cyclodextrin in which a functional ingredient adjacent thereto is enclosed. In the cyclodextrin-containing layer, the cyclodextrin encapsulating the functional ingredient may be adhered to the cyclodextrin-containing sheet by the adhesive function of the adjacent adhesive layer. In the cyclodextrin-containing layer, the cyclodextrin encapsulating the functional ingredient may have the form of a powder. In the entire cyclodextrin-containing sheet of the present embodiment, the cyclodextrin encapsulated with the functional ingredient is unevenly distributed in the thickness direction.

(Sixth Embodiment)

The above-described cyclodextrin-containing sheet according to the present invention may be formed by embossing. As an example, FIG. 1 (i) shows a structure in which layers 300 are laminated on both sides of a cyclodextrin-containing layer 120 including a heat-sealable resin A and interlayer-bonded by embossing.

That is, the cyclodextrin-containing sheet according to the sixth embodiment of the present invention has two outer layers (another layer 300) partially fused and a plurality of outer layers And a cyclodextrin-containing layer (100) encapsulating a functional component. A concavo-convex shape may be formed on at least one surface. Such a form can be easily realized by embossing.

The constitution of the cyclodextrin-containing sheet of the present invention has been described above with reference to Figs. 1 (a) to (i). However, these are merely examples, and combinations of other configurations, for example, each of the illustrated embodiments are also included in the scope of the present invention. For example, the layer shown as the cyclodextrin-containing layer 100 enclosing the functional component in the figure may be a cyclodextrin-containing layer 110 including the fiber F or a cyclodextrin-containing layer 120 including the heat-sealable resin A Or may be a layer containing both of the fiber F and the heat-sealable resin A. Likewise, configurations in which layers are substituted between these layers are included in the scope of the present invention.

Hereinafter, the constituent elements of the cyclodextrin-containing sheet according to the present invention will be described in detail.

(A cyclodextrin-containing layer containing a functional ingredient)

The cyclodextrin-containing layer enclosed by the functional ingredient of the present invention is a layer containing a cyclodextrin in a state in which a functional ingredient is enclosed. The cyclodextrin-containing layer enclosed by the functional ingredient of the present invention may contain, in addition to the cyclodextrin in a state in which the functional ingredient is enclosed, a so-called empty cyclodextrin in a state in which the functional ingredient is not enclosed. Cyclodextrins are included as powders (particles). The cyclodextrin-containing layer enclosed with the functional ingredient may contain only the cyclodextrin encapsulated with the functional ingredient. The cyclodextrin in which the functional ingredient is enclosed is not limited to one kind, but may include a plurality of kinds. The cyclodextrin-containing layer in which the functional component is enclosed may contain fibers, heat-sealable resin, additives, and the like in addition to the cyclodextrin encapsulated with the functional ingredient. Further, in the present invention, in the cyclodextrin-containing layer enclosed with the functional component, the cyclodextrin in which the functional component is enclosed (that is, the cyclodextrin in which the functional component is enclosed, (That is, a cyclodextrin in a state where a site having an encapsulating ability is so-called empty) that does not encapsulate a functional ingredient may be further blended in addition to the above-mentioned cyclodextrin, which may contain a cyclodextrin.

(Cyclodextrin)

The cyclodextrin used in the present invention is also referred to as cyclodextrin or cyclic oligosaccharide and has the ability to attract various molecules as a guest (encapsulate) to form an inclusion complex and to attract attracted guest molecules. Cyclodextrin having seven glucose groups, six? -Cyclodextrins having seven glucose groups, seven? -Cyclodextrins having seven glucose groups, and? -Cyclodextrin having eight? Groups contained in one molecule of cyclodextrin are used in consideration of molecular weight, structure and compatibility with functional ingredients . The cyclodextrin may be chemically modified such as methylation, hydroxylation, and acetylation. The cyclodextrin may have branches. These cyclodextrins may be used singly or in combination. In the present invention, the above-mentioned cyclodextrin is encapsulated with a functional ingredient. The cyclodextrin used may contain an empty cyclodextrin that does not contain a functional ingredient.

(Functional ingredient)

As the functional ingredient, various functional ingredients can be used depending on the purpose and purpose of the cyclodextrin-containing sheet. Examples of the use of the cyclodextrin-containing sheet will be described later.

The functional ingredient that can be used in the present invention may be a synthetic ingredient or an extract ingredient from a natural product. For example, the extract components such as wasabi component, mustard component, red pepper component, ginger component, lemon component, orange component, grapefruit component, citron component, plum component, horse tea component, almond component, natural meat flavor, Natural or organic volatile antimicrobial agents or fragrances such as plant extracts and tea extracts; natural cosmetics such as coenzyme Q10, isoflavones and vitamins; and cosmetics such as vitamins.

In addition to the above-mentioned examples, the functional ingredients include, for example, medicinal components, moisturizers, texture improving agents, antioxidants, reducing agents, oxidizing agents, antiseptics, antibacterial agents, pH adjusting agents, ultraviolet absorbers, whitening agents, vitamins and their derivatives, Anti-aging agent, reducing agent, cold agent, warming agent, wound healing accelerator, stimulant, analgesic agent, cell activator, plant, animal, microbial extract An antihypertensive agent, an antihypertensive agent, an antihypertensive agent, an antibiotic substance, an anesthetic agent, an antimicrobial agent, an antimicrobial agent, an antimicrobial agent, an antimicrobial agent, A known compound such as an anti-seizure agent, a vasodilator, a herbal medicine, an adjuvant, a wetting agent, a preservative, a keratolytic exfoliation agent, a fungicide, a lipophilic substance, a deodorant component or a repellent may be arbitrarily selected There.

These functional components may be used singly or in combination in the cyclodextrin-containing sheet.

(Cyclodextrin containing the functional ingredient)

In the present invention, the cyclodextrin encapsulated with the functional ingredient is used in the form of powder (particle). Cyclodextrins encapsulating functional components in the form of powders (particles) can be purchased from vendors other than those obtainable by any method known in the art. For example, Dexiace (a product using cyclodextrin) available from EnSeco Corporation, CAVAMAX (registered trademark) available from Cyclochem Co., Ltd., and the like can be suitably used. The cyclodextrin in which the functional ingredient in the form of a powder (particle) is enclosed may contain cyclodextrin in a state in which the functional ingredient is not encapsulated, in addition to the cyclodextrin in a state in which the functional ingredient is encapsulated.

(fiber)

Examples of the fiber include pulp (such as chemical pulp of softwood and / or softwood, semi-chemical pulp, mechanical pulp or highland pulp), marble fibers such as cotton, silk, wool, mineral fibers, Synthetic fibers such as fibers, polylactic acid, nylon, polyvinyl alcohol (PVA), and polymer absorbing fibers (SAF) can be used. Since these fibers have absorbency, they may be blended as an absorbent material to promote the release of the functional ingredient during use of the cyclodextrin-containing sheet. When a cyclodextrin in which a cold feeling material is encapsulated as a functional component is used, a fiber having high absorbency such as SAF is used as the fiber, and it becomes possible to provide a sheet having a strong cold feeling and a long duration. As the fibers of the present invention, non-absorbent fibers may also be used. The heat-sealable resin described below may be used in the form of fibers. These fibers can be used, for example, in the form of a shredded short cut fiber. These fibers may be used in combination of two or more.

(Heat-sealable resin)

The heat-sealable resin in the present invention is a binder resin for binding constituent components. Further, the heat-sealable resin has the effect of imparting strength to the cyclodextrin-containing sheet, and the shape of the cyclodextrin-containing sheet is easily retained by including the heat-sealable resin.

The heat-sealable resins A and B can bind cyclodextrins encapsulating the functional component and, when another component is contained, the cyclodextrin and other components encapsulating the functional component. The heat-sealable resins A and B do not cover the entirety of the powder (particle) of the cyclodextrin in which the functional ingredient is enclosed when melted and solidified so as not to interfere with release of the functional ingredient from the encapsulated cyclodextrin .

The heat-sealable resin may be in a fiber form or in a particle form. In view of higher strength, the heat-sealable resin is preferably in the form of fibers. The heat-sealable resin may be in the form of, for example, a short cut fiber.

Examples of the heat sealable resin include polyethylene (PE), polypropylene, low melting point polyethylene terephthalate, low melting point polyamide, low melting point polyunsaturated acid, and polybutylene stearate.

The heat-sealable resin may be a composite of two or more kinds of resins. For example, a sheath-core fiber composed of a core portion and a sheath portion, a side-by-side fiber composed of a resin having one side half and another side half different from each other in a cross section perpendicular to the longitudinal direction, And a core shell particle having a core and a shell.

Two or more kinds of heat-sealable resins may be used in combination. That is, the heat-sealable resins A and B may be the same heat-sealable resin or other heat-sealable resin. As the heat-sealable resin A and the heat-sealable resin B, one kind of heat-sealable resin may be used, or plural kinds of heat-sealable resin may be used in combination. In the case where the cyclodextrin-containing sheet includes another layer 300 described later, and the other layer 300 includes a heat-sealable resin, the heat-sealable resin contained in the other layer 300 may be heat May be the same as or different from the fusion-bondable resins A and B, and they may be one type or a combination of a plurality of types.

(Other layer)

The cyclodextrin-containing sheet of the present invention can be used in combination with other layers 300 (for example, for the purpose of imparting functionality such as surface modification or strength (rigidity)) to the cyclodextrin- ). In addition, for the purpose of improving the adhesiveness with other layers, the resin powder may be dispersed and heated, or an optional adhesive layer such as a hot-melt resin layer or an adhesive layer may be provided.

As the other layer 300, for example, any sheet having a property of passing moisture (water permeability) and / or a property of absorbing moisture (absorbency) such as nonwoven fabric, cloth, paper and the like can be used. In addition, any film can be used. The other layer (300) may include a thermally fusible resin. When a film having relatively low air permeability is used on one surface of the cyclodextrin-containing sheet, the released functional ingredient can be prevented from dissipating from the surface. The surface of the other layer 300, which is the outer layer of the cyclodextrin-containing sheet, may be subjected to surface processing such as unevenness.

(additive)

The cyclodextrin-containing sheet of the present invention may contain additives having one or more effects depending on the use thereof. The additive may be a substance which promotes the effect of the present invention (for example, a so-called effect promoter) including a component supplementing the effect of the functional ingredient of the present invention, and may be a substance which does not interact with the functional ingredient of the present invention It is also possible to include components.

Examples of the additive include additives such as an oil agent, a moisturizer, a feeling improver, a surfactant, a polymer, a thickening and gelling agent, a solvent, a spraying agent, an antioxidant, a reducing agent, An antiinflammator, an anti-aging agent, a reducing agent, a cold agent, an anti-inflammatory agent, an antiinflammatory agent, a hair tonic agent, a blood circulation accelerator, a stimulant, a hormone, , A warming agent, a wound healing accelerator, a stimulant, an analgesic agent, a cell activator, a plant, an animal, a microbial extract, a glutinous agent, a keratin detachment / solubilizer, a limiting agent, a refreshing agent, an astringent agent, An antihypertensive agent, an antihypertensive agent, an antihypertensive agent, an antibiotic, an anesthetic agent, an antimicrobial agent, an antiepileptic agent, a vasodilator, an antiinflammatory agent, an antiinflammatory agent, an antiinflammatory agent, , An antioxidant, a liquid matrix, a lipid-soluble substance, a polymeric carboxylic acid salt, an additive, a metal soap, an absorbent material, an antioxidant, an antiseptic agent, Materials and the like. For example, particles such as carboxymethylcellulose (CMC), water-soluble resin particles such as polyvinyl alcohol and polymer absorber (SAP) have effects such as prolongation of the duration and improvement of the efflux of functional components. In addition, the liquid form additive may be incorporated into capsules or the like to form a solid form.

The additive may be incorporated into the cyclodextrin-containing layer (100, 110, 120) in which the functional ingredient is enclosed. When the cyclodextrin-containing sheet has a multilayer structure including a layer different from the cyclodextrin-containing layer, it may be incorporated into any one or a plurality of layers of the plurality of layers.

For example, when the cyclodextrin-containing sheet has a multilayer structure, it may be a sheet in which an acid is mixed in one layer and a carbonate is mixed in the other layer so that carbon dioxide gas is generated during use. By the generation of the carbon dioxide gas, the functional ingredient encapsulated in the cyclodextrin is efficiently released together with the carbon dioxide gas.

(Heat seal)

The heat seal is a method in which heat is applied by a heating means such as a heat sealer to perform interlayer adhesion. In the present invention, for example, a cyclodextrin-containing layer in which a functional component comprising only a cyclodextrin encapsulated with a functional ingredient is enclosed is used as an intermediate layer, and a layer 200 including a heat-sealable resin is mixed on both sides thereof, To thereby form a cyclodextrin-containing sheet having a multilayer structure.

(Ultrasonic seal)

The ultrasonic seal is a method of interlayer bonding by ultrasonic vibration and pressurization. As in the case of the heat seal, a layer 200 having an ultrasonic sealing property is disposed on both sides of the cyclodextrin-containing layer, and ultrasonic wave sealing is carried out on the surface of the cyclodextrin-containing layer, whereby a cyclodextrin-containing sheet having a multilayer structure can be formed.

(Adhesive layer)

The method of forming the adhesive layer is not particularly limited, but it is preferably an adhesive layer obtained by hot-melt processing. The hot-melt processing is a processing method in which the thermoplastic resin is melted and pressed to adhere the sheet and the sheet. It can be used for interlayer adhesion when bonding the cyclodextrin-containing layer and another layer.

As a thermoplastic resin that can be used for hot-melt processing, for example, ethylene-vinyl acetate copolymer (EVA) and the like are known. In addition, resins generally known as hot-melt adhesives such as synthetic rubber type, polyester type, polyamide type, polyurethane type, acrylic type, olefin type and the like can be used.

(Embossing processing)

The embossing process is a process of applying pressure to a mold with a concave-convex shape and applying heat. This method can also be used for interlayer adhesion of a multi-layer structure. This method can also be used for surface processing of concave and convex on a single-layer or multi-layered cyclodextrin-containing sheet.

(Content ratio of each component)

The amount of the cyclodextrin in the cyclodextrin-containing sheet is preferably 0.01% by mass or more based on the total amount of the sheet. If it is 0.01 mass% or more, the inclusion component of cyclodextrin can be effectively released.

(Basis weight)

The basis weight of the cyclodextrin-containing sheet can be appropriately set in accordance with the use. For example, it is preferably 10 to 4000 g / m ² .

(Formation of cyclodextrin-containing layer by dry method)

In the present invention, the cyclodextrin-containing layer enclosed with the functional component is a layer provided by a dry method. The dry method that can be used in the present invention includes any layer formation method that does not use water.

(Method for producing cyclodextrin-containing sheet)

For example, a manufacturing method in which a cyclodextrin-containing layer in which a functional component is enclosed is formed by a web forming apparatus employing an air-laid method, and another layer is laminated on the cyclodextrin-containing layer when another layer is included have. As such a method, there is a method in which a heat-sealable resin B such as polyethylene (PE) is disposed on the surface of the cyclodextrin-containing layer enclosed with the functional component, and the heat-sealable resin B is melted by heat have. Alternatively, when a cyclodextrin-containing layer (for example, a cyclodextrin-containing layer 120 including a thermally fusible resin A) in which a functional component is enclosed by a web forming apparatus employing an air-laid method is formed, the cyclodextrin- Layered structure of the other layer 300 and the cyclodextrin-containing layer 120 by using the other layer 300 of the present invention in the carrier sheet for conveying the web layer of the present invention, A dextrin-containing sheet may be obtained. Further, each layer of the separately produced cyclodextrin-containing sheet may be bonded by embossing or heat sealing. There is also a method in which an adhesive layer (adhesive layer) is provided on at least one side of the bonding surfaces of the respective layers of the cyclodextrin-containing sheet using a hot-melt adhesive such as a thermoplastic resin, and the respective layers are bonded by hot-melt processing. In order to prevent the release (outflow) of functional components and the aggregation of cyclodextrins during the production, in the present invention, these layers are formed by a dry method.

(Method for producing a cyclodextrin-containing sheet employing an air-laid method)

The method of producing a cyclodextrin-containing sheet of the present embodiment employing the air-laid method optionally has a fibrillation process, a mixing process, a web forming process, and a binding process.

(Shredding process)

The fibrillating step is a step of fibrillating a material in the form of a short cut fiber by an air flow to obtain a fibrillated short cut fiber.

In the method of blowing air by the airflow of the short cut fiber, an air flow is formed by a blower or the like, a short cut fiber is supplied to the air flow, and the air flow is fibrillated by the stirring effect of the air flow.

As the firing method, firing is preferably carried out with a swirling air flow. According to the fibrillation method using the airflow to be turned, the short-cut fiber can be sufficiently fumed, and when the air-laid web is formed by the air-laid method, the dispersibility of the fibrillated short-cut fiber can be further improved.

As a fibrillation method using a swirling airflow, for example, a method of blowing a short cut fiber into a blower and fibrillating it with a blower can be mentioned. In addition, air can be blown into the cylindrical container by a blower to form a swirling flow, and short-cut fibers are supplied to the swirling flow, followed by stirring and fibrillating.

The flow rate of the air flow is appropriately selected according to the amount of the short cut fiber, and is usually in the range of 10 to 150 m / sec.

(Mixing process)

The mixing process is a process for obtaining a raw material of a web by mixing a powder (particle) of a cyclodextrin encapsulated with a functional ingredient and a material (if included) in the form of a shredded short-cut fiber. At this time, any other material can be mixed. The shape of any other material may be fiber or particle. Examples of arbitrary other materials include thermosetting resins, additives which are added as needed, such as additives, and the like. There is no particular limitation on the order of addition of these materials, and these materials are later than the mixing step, and they may be added by, for example, scattering.

When mixing, it is preferable to stir the shredded short-cut fiber and other materials in order to improve the dispersibility of the shredded short-cut fiber. However, in order to prevent breakage of the shredded short-cut fiber, it is preferable to apply stirring using air flow instead of stirring using mechanical shear force (shearing force).

The mixing process may be performed after the fibrillation process or may be performed simultaneously with the fibrillation process. In the case where the mixing step is performed simultaneously with the fibrillating step, the fibrillated short-cut fiber and an arbitrary material are mixed using the air flow in the fibrillating step. In addition, in the particle dispersion step to be described later, the cyclodextrin powder and / or arbitrary particles may be added to the web formation line of the shredded short-cut fiber and mixed.

(Web forming process)

The web forming step is a step of obtaining an air laid web from a web raw material by an air laid method. Here, the air-laid method is a method of forming a web by arbitrarily depositing fibers three-dimensionally using an air flow.

(Particle dispersion step)

The particle scattering process is a process of blending a powder (particle) type material into a web raw material by a conventionally known method. Any of a method of forming a web by mixing a powder (particle) type material with the fiber, or a method of dispersing on the surface of a web or on a carrier sheet may be used.

In the web forming step in this embodiment, for example, the web forming apparatus 1 shown in Fig. 3 is used. The web forming apparatus 1 includes a conveyor 10, a durability belt 20, a web material feeding means 30, a first carrier sheet feeding means 40, a second carrier sheet feeding means 50, Box (60).

Here, the conveyor 10 is constituted by a plurality of rollers 11. The speculative endless belt 20 is mounted on the conveyor 10 and rotates. The web raw material supplying means 30 supplies the web raw material to the speculative endless belt 20 together with the air flow. The first carrier sheet feeding means 40 feeds the first carrier sheet 41 toward the electrostatic endless belt 20. The second carrier sheet feeding means 50 feeds the second carrier sheet 51 toward the first carrier sheet 41 which has passed through the dirt permeable belt 20. [ The suction box 60 sucks the speculative endless belt 20 from the inside thereof.

In the web forming apparatus 1, the web material feeding means 30 is provided above the speculative endless belt 20, the first carrier sheet feeding means 40 is provided upstream of the speculative endless belt 20 , And the second carrier sheet feeding means 50 is provided downstream of the speculative endless belt 20.

In the web forming process using the web forming apparatus 1, the conveyor 10 is driven by rotating the rollers 11 in the same direction to rotate the stationary endless belt 20. Further, the first carrier sheet 41 is fed from the first carrier sheet feeding means 40 so as to come into contact with the speculative endless belt 20.

Subsequently, the web raw material is lowered together with the air flow from the web raw material supplying means 30 while absorbing the speculative endless belt 20 by the suction box 60, and the first carrier sheet 41 ), The fiber mixture is dropped and deposited. Thus, the air-laid web W is formed.

Next, the second carrier sheet 51 is fed from the second carrier sheet feeding means 50 onto the air-laid web W to obtain an air-laid web-containing laminated sheet.

(Binding process)

In the binding method, from the viewpoint of binding without using water, it is preferable to use a thermal bond method. The bonding process by the thermal bonding method is a step of heat treating the air-laid web and bonding the shredded short-cut fibers to each other by means of a heat-sealable resin.

As the heat treatment of the air laid web, hot air treatment and infrared ray irradiation treatment can be exemplified. In view of low cost of the apparatus, hot air treatment is preferable.

As the hot air treatment, a method (hot-air circulating rotary drum method) in which an air-laid web is brought into contact with a through-air dryer having a peripheral drum-shaped rotary drum and the air-laid web is passed through a box- And a method of heat treatment by passing hot air through the laid web (hot air circulating conveyor oven method).

In the case where the air-laid web is sandwiched between the first carrier sheet and the second carrier sheet to form a laminated sheet as in the present embodiment, the laminate sheet may be subjected to hot air treatment. The first carrier sheet and the second carrier sheet can be peeled off from the airlaid web after hot air treatment. The heat treatment temperature may be a temperature at which the heat-sealable resin is melted.

After the binding step, a compression treatment may be conducted through a heating roll for the purpose of finely adjusting the thickness and density of the cyclodextrin-containing sheet.

(Action effect)

In the above production method, the powder (particle) of the cyclodextrin encapsulated with the functional ingredient can be contained in the cyclodextrin-containing layer in which the functional ingredient is enclosed, in the form of powder (particle) without passing through water. As a result, few functional components are released from the inner cavity of the cyclodextrin during the manufacturing process, and the resulting cyclodextrin-containing sheet exhibits good sustained performance.

(Uses of Cyclodextrin-Containing Sheet)

Hereinafter, the use of the cyclodextrin-containing sheet according to the present invention is illustrated.

The uses of the cyclodextrin-containing sheet include (1) medical (clothing) use, (2) protective use, (3) medical use, (4) building use, (5) wood use, (7) sanitary, (8) furniture and interior, (9) wipers, (10) filters, (11) napkins, (12) agriculture and horticulture, (13) , (15) industrial materials, and the like.

(1) Examples of medical (clothes) use include medical members, disposable medical care (also referred to as diphtheria medical care), shoes, wipes, gloves, slippers and hats. Specific examples of the medical member include a wick, an adhesive wick, a filling pad, a bra pad, a shoulder pad, a jumper liner, and the like. Specific examples of the above-mentioned medical care include an event jumper, a flying underwear, and the like. Specific examples of the shoes include an insole material, a fishing leather floor, and the like.

(2) As a protection, for example, protection, protection articles and the like can be mentioned. Specific examples of the protection include work clothes, laboratory clothes, protective clothing, and the like. Specific examples of the protective article include safety shoes, work gloves, a smoke mask, a dust mask, a gas mask, and the like.

(3) For medical use, for example, gauze, surgical gown, drape set, birth bat, cap, mask, sheets, antibacterial mat, papermaking foam, Artificial skin, and the like.

(4) For the building material, for example, roofing, tufts, carpet bubbles, condensation prevention sheet, thermal insulation sheet, humidity control sheet, closet material, heat insulation material, hygroscopic material, soundproofing material, sound absorbing material, dustproof material, wood material, And the like.

(5) For civil engineering applications, for example, drainage materials, filter materials, anti-fouling materials, separating materials, waterproof sheets, reinforcing materials, protective materials, concrete reinforcing sheets, asphalt overlay materials, underground buried pipe repairing materials, .

(6) Examples of vehicles include automobile interior parts, automobile parts, and the like. Specific examples of the automobile interior material include a floor mat, a door trim, a trunk mat, a ceiling material, a rear parcel, a built-in cloth, a head rest, a bonnet cover, a sound absorbing material, Specific examples of the automobile parts include an air cleaner, an oil cleaner, an indoor clean filter, an outside air blowing filter, and the like.

(7) Examples of hygiene include diapers, sanitary articles, first aid articles, clean articles, towels, masks, and the like. Specific examples of the diaper include a paper-wrapped diaper, a diaper cover, and the like. Specific examples of the sanitary article include a napkin, a tampon, and the like. Specific examples of the first-aid articles include gauze, first-aid bandages, cotton swabs and the like. Specific examples of the above-described cleaner include wipes, cosmetic cotton, breast pad, hygienic sheet, sweat absorbent sheet (such as face, armpit, neck, foot), antibacterial / antibacterial sheet, antiviral sheet, antiallergenic sheet, And an antibacterial sheet. A specific example of the mask is a disposable three-dimensional mask or the like.

(8) Examples of furniture and interior include carpets, flooring, curtains, furniture parts, window frames, wallpaper, ornaments and the like. Specific examples of the carpet include carpets, carpet bubbles, tile carpets, electric carpets, mat bubbles, under carpets, and the like. Specific examples of the furniture parts include a cushioning material, a filling pad of a reception chair, and the like. Specific examples of the window include a paper sheet, a Japanese flag, a tatami mat, a blind, and the like. Specific examples of the decorative article include a pennant, a roll screen, a harmony, and the like.

(9) Examples of the wiper include wipers, wet wipers, oil filters, and photocopier cleaning materials.

(10) Examples of filters include filters for air, bug filters, liquid filters, electret filters, filters for cleaners, filters for filter presses, mats for drainage, desalination filters, gas adsorption filters, A filter, and a filter for a water purifier. Specific examples of the air filter include rough dust, used performance, and ultra high performance.

(11) Examples of the bedding include futons, pillow covers, sheets, etc. Specific examples of the futons include bed sheets, bedding bags and the like.

(12) Examples of agriculture / horticultural use include sheet for plank, front sheet, injury prevention sheet, grass sheet, gardening planter and the like.

(13) For the leather, for example, bubbles for artificial leather, bubbles for synthetic leather, bubbles for vinyl chloride leather and the like can be mentioned.

(14) As a resident, for example, there are a variety of items such as a storage item, a packing material, a cleaning article, an envelope, a food item, a household goods, a kitchen utensil, a table top, Mats, and beauty materials. Specific examples of the storage articles include a storage bag, a chute cover, a insect-proof cover, and the like. Specific examples of the packaging material include wrapping cloth, packaging, and the like. Specific examples of the cleaning article include a chemical mop, a scrubber, and the like. Specific examples of the envelope include a chemical hand stove, a desiccant bag, a shopping bag, and the like. Specific examples of the foods include tea bags, coffee bags, food bags, lead retainers, and food absorption sheets. Specific examples of the household goods include calenders, non-slip sheets, eye masks, cold felt sheets, warm sheets, neck scarves, gloves, book covers, deodorizing sheets, Specific examples of the kitchenware include a dehydrating sheet, a cooking paper, a scrubbing brush, a roll towel, a fire extinguisher, and the like. Specific examples of the table top include a table cloth, a luncheon mat, a coaster, and the like. Specific examples of the above-mentioned office supplies include a stamp pad, a felt-tip pen, a printing plate, a blackboard eraser, an envelope, and the like. Specific examples of the sporting goods include a golf club head cover, a tennis grip, and the like. Beauty materials include face masks, puffs, beauty packs, and beauty gloves.

(15) Industrial materials include, for example, industrial materials, electrical materials, batteries, product materials, OA equipment, AV equipment, rolls, instrument parts, musical instruments and packaging materials. Specific examples of the industrial materials include abrasives, absorbent materials, papermaking felt, heat-resistant cushions, dehydrating materials, heat insulating materials, soundproofing materials, and dustproof materials. Specific examples of the electrical material include an electric insulating material, a substrate for a printed circuit board, an electromagnetic wave sealing material, a static electricity removing sheet, and a wire winding tape. A specific example of the battery is a separator or the like. Specific examples of the product material include FRP (fiber reinforced plastic) base material, tape, printing bubble, synthetic paper, electrostatic recording paper, adhesive tape, thermal transfer sheet, radiation shielding mat and the like. Specific examples of the OA device include a disc liner and a packaging material. Specific examples of the AV device include a loudspeaker diaphragm, a sound absorbing plate, and the like. Specific examples of the rolls include puff rolls, application rolls, and agitated rolls. Specific examples of the device member include a V-belt, a conveyor belt, a timing belt, and the like. Specific examples of the musical instrument include a piano key cushion, a hammer rail, and the like. Specific examples of the packaging material include a packaging material for dry ice, a packing, and the like.

The cyclodextrin-containing sheet of the present invention is particularly useful as a sheet for dental use such as a food tray mat, a food packaging sheet, a beauty sheet and an insect proof sheet (such as the above (14)), a medical and sanitary sheet (2), (3), (7), etc.), a cleaning sheet (the above-mentioned (7), (9) (10) and the like), and a sanitary sheet such as a towel (the above (7), etc.). Further, the present invention is not limited to the above-mentioned classification, and the same cyclodextrin-containing sheet can be used in various fields and applications.

(Example of Layer Configuration Suitable for Each Use of Cyclodextrin-Containing Sheet)

2, there is shown an example of a layer configuration suitable for each use of the cyclodextrin-containing sheet of the present invention. This is not a limitation of the present invention for the sake of simplicity. On the other hand, the same reference numerals denote the same components.

2 (a) shows an example of a general-purpose configuration that can be suitably used for any application. 2 (a) shows a layer structure comprising a cyclodextrin-containing layer 1010 containing a cyclodextrin C encapsulating a functional component and a heat-sealable resin A, and a nonwoven fabric 3010 disposed on both sides of the cyclodextrin- .

In this example, the nonwoven fabric 3010 is formed by a dry process using wood pulp as the main raw material. The nonwoven fabric 3010 may be formed, for example, by depositing a raw material by using an air-laid method, and bonding and sealing the surface by spraying a binder. As such nonwoven fabric, for example, Kinoclose (registered trademark) manufactured by Oji Kikinos Co., Ltd. can be used. Such a nonwoven fabric has low web density, excellent liquid retentivity, filtration property, and bulkiness. Therefore, it is easy to pass moisture at the time of use and has a high ability to retain moisture, and is suitably used.

Fig. 2 (b) shows an example of a configuration that can be suitably used for a cold-weather sheet. Specifically, Fig. 2B shows a cyclodextrin-containing layer 1010 including a cyclodextrin C encapsulating a functional component and a heat-sealable resin A, a nonwoven fabric 3010 disposed on one side of the cyclodextrin-containing layer 1010, And the nonwoven fabric 3020 and the tissue 3030 arranged on the other side in this order.

In this example, the nonwoven fabric 3020 disposed between the cyclodextrin-containing layer 1010 and the tissue 3030 may include, for example, pulp and synthetic fibers, and the synthetic fibers include polymer absorbing fibers (SAF) It may be. Therefore, the layer of the nonwoven fabric 3020 has high water absorption and retention. Here, the cyclodextrin-containing layer 1010 may exist as a layer lying on the surface of the nonwoven fabric 3020, or may exist in a state in which a part or all of the fibers constituting the nonwoven fabric 3020 are embedded. That is, the cyclodextrin-containing layer 1010 and the nonwoven fabric 3020 may be present individually or in overlapping portions in the thickness direction of the cyclodextrin-containing sheet. Further, the layer of the tissue 3030 to be the outer layer is thin and has low density, so that the water permeability is good. Furthermore, the tissue 3030 can provide a soft touch. The layer of the nonwoven fabric 3010, which is another outer layer, can provide soft touch. In addition, since the nonwoven fabric 3010 has a high liquid retentivity, the effect of adding cyclodextrin C to the nonwoven fabric 3010 is gradually improved. Therefore, the sheet having such a constitution is suitably used for applications to be used when it comes into contact with the skin, and the effect tends to be easily manifested and sustained.

Fig. 2 (c) shows an example of a configuration that can be suitably used for a cold-feeling sheet, a sanitary sheet, a wiper, and the like. 2 (c) shows a cyclodextrin-containing layer 1020 containing fibers in addition to the thermocompression-bondable resin A and the cyclodextrin C encapsulating the functional component, and a tissue 3030 disposed on both sides of the cyclodextrin- The layer structure is shown.

In this example, the cyclodextrin-containing layer 1020 is a nonwoven fabric layer, and includes pulp and synthetic fibers as fibers, and the synthetic fibers may include a polymer absorbing fiber (SAF). Therefore, the cyclodextrin-containing layer 1020 has high water absorption and retention. Further, the layer of the tissue 3030 to be the outer layer is thin and has low density, so that the water permeability is good. Furthermore, the tissue 3030 can provide a soft touch. Therefore, the sheet having such a constitution is suitably used for applications to be used when it comes into contact with the skin, and the effect tends to be easily manifested and sustained. As the outer layer, a layer other than a tissue may be used, or a front and back face materials may be further disposed on the tissue. For example, a layer for preventing the outflow of moisture to one side can be arranged. The layer 1020 may contain particles in the voids formed by the fibers. Therefore, the layer 1020 can contain particles in the layer without using a resin as a binder, and therefore may or may not include the heat-sealable resin A. When the heat-sealable resin A is included, there is an effect of reducing dusting.

Fig. 2 (d) shows an example of a configuration that can be suitably used for a sweat absorbing pad or the like. More specifically, Fig. 2D shows a cyclodextrin-containing layer 1030 including a cyclodextrin C enclosed with a functional component, a thermally fusible resin A and a fiber in addition to the fibers Y, and a cyclodextrin- And a film 3050 disposed on the other surface thereof.

In this example, the cyclodextrin-containing layer 1030 is a layer of nonwoven fabric, and includes pulp and synthetic fibers as fibers, and synthetic fibers may include polymer absorbing fibers (SAF). Therefore, the cyclodextrin-containing layer 1030 is highly water-absorbing and retaining. Further, in this example, the cyclodextrin-containing layer 1030 may contain the additive Y. The additive Y may be any inorganic pigment such as zeolite, activated carbon or silica. By selecting a material having antibacterial properties and absorbency as the additive Y, the effect of the cyclodextrin-containing sheet used for a sweat absorbent pad or the like can be promoted.

Since the layer of the filter 3050 serving as the outer layer does not pass the moisture or hardly passes the moisture, the surface of the optional nonwoven fabric 3040, which is the other outer layer, It is possible to effectively apply the additive to the application site and to prevent the liquid such as absorbed sweat from being discharged from the opposite side. On the other hand, instead of the film 3050, a nonwoven fabric having high water repellency may be used, or an adhesive layer may be provided on the outer side (the side opposite to the layer 1030) of the film 3050 and fixed to clothes.

Fig. 2 (e) shows an example of a configuration that can be suitably used for a cleaning sheet or the like. 2 (e) shows a cyclodextrin-containing layer 1040 comprising a cyclodextrin C encapsulating a functional component, a thermally fusible resin A, a fiber and an additive Z, and a nonwoven fabric, And an arbitrary layer 3060 such as a film.

In this example, the cyclodextrin-containing layer 1040 is a layer of a nonwoven fabric and includes a shrinkable fiber as the fiber. When a synthetic fiber is used as the main raw material, it is possible to provide a sheet having a strong sheet strength and good scratch resistance (ability to scrape down solids). The synthetic fibers may contain a polymer absorbing fiber (SAF) for the purpose of enhancing the absorbing and lyophobic properties, and may include absorbent fibers such as pulp for the purpose of enhancing the liquid absorbency. Further, in this example, the cyclodextrin-containing layer 1040 may contain the additive Z. The additive Z may be any cleaning component such as citric acid, sodium hydrogencarbonate, and the like. By selecting a cleaning component as the additive Z, the effect of the cyclodextrin-containing sheet used for a cleaning sheet or the like can be promoted. As a modification, a sheet such as a nonwoven fabric having permeability or breathability may be disposed on the side opposite to the layer 3060 in the cyclodextrin-containing layer 1040.

The configuration examples have been described above, but the present invention is not limited to these configurations.

Example

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples.

[Example 1]

<Production of Cyclodextrin-Containing Sheet>

Core type heat-sealable conjugate fiber (PET / PE) having short-cut rayon fibers (fineness of 3.3 dtex, fiber length of 5 mm) and a short cut core portion of polyethylene terephthalate (PET) Core-fiber, composite cis-core fiber, fineness of 3.3 dtex, fiber length of 5 mm, and sheath melting point of 130 캜) were subjected to fibrillation treatment using a swirling flow air stream fibrillation device to obtain respective fibrillated short cut fibers.

Then, the rayon fibers in the form of short fibers in the form of short fibers and the thermally fusible conjugate fibers in the form of short fibers in the form of short fibers were uniformly mixed in air flow at a ratio of 70/30 (mass ratio) To obtain a mixture (a web raw material).

A mixture of the material M in which the ginger component was encapsulated in the cyclodextrin and the polyethylene (PE) powder was mixed at a ratio of 80/20 (by mass ratio) to obtain a particle mixture of the material M / PE powder.

Subsequently, after the particle mixture of the material M / PE powder was dispersed on the carrier sheet, a sheet on which an airlaid web was formed from the fiber mixture was obtained by using the web forming apparatus 1 shown in Fig.

Specifically, a first carrier sheet 41 (base paper) having a basis weight of 14 g / m &lt; ² &gt; is formed by the first carrier sheet feeding means 40 on the specular endless belt 20 mounted on the conveyor 10, ).

The particulate mixture of the material M / PE powder was spread on the first carrier sheet 41 so that the particle mixture of the material M / PE powder was 30 g / m ² while the speculative endless belt 20 was being sucked by the suction box 60, And the fiber mixture was dropped and deposited from the supply means 30 together with the air flow. At that time, the fiber mixture was fed so that the basis weight of the short cut fiber per airlaid web part was 230 g / m ² . And a second carrier sheet 51 made of a tissue (basis weight 14 g / m ² ) was laminated thereon to obtain an airlaid web-containing laminated sheet.

The obtained laminated sheet was passed through a box-type dryer of a hot air circulating conveyor oven type, and subjected to hot air treatment at 140 캜 to obtain a cyclodextrin-containing sheet having a basis weight of 288 g / m ² .

[Example 2]

Short-cut rayon fibers were changed to softwood chemical pulp and the heat-sealable conjugate fibers (PET / PE composite cis-core fibers) of the softwood chemical pulp and the sheath-core type were changed to 70 / 30 (mass ratio) in air, while the air-laid web was formed, to obtain a cyclodextrin-containing sheet. The basis weight of the obtained cyclodextrin-containing sheet was 288 g / m ² .

[Example 3]

The short-cut rayon fibers were changed to PET fibers (fineness 3.3 dtex, fiber length 5 mm, melting point 260 캜), and the heat-sealable conjugate fibers were changed to high density polyethylene fibers (fiber length 1.5 mm, melting point 120 캜) Was mixed uniformly in air at a ratio of 50/50 (by mass ratio) to form an air-laid web, to obtain a cyclodextrin-containing sheet. The basis weight of the obtained cyclodextrin-containing sheet was 288 g / m ² .

[Example 4]

Material A sheet was obtained in the same manner as in Example 3 except that the particle mixture of the M / PE powder was dispersed to be 5 g / m ² . The basis weight of the obtained cyclodextrin-containing sheet was 263 g / m ² .

[Example 5]

Material M / particle mixture of PE powder in place of the dispersion on the carrier sheet, falling with mixing the fiber mixture with which the material M inclusion of ginger components from a web material feed means 30 such that the 24g / m ² and air stream And a cyclodextrin-containing sheet was obtained in the same manner as in Example 3 except that the first and second carrier sheets were made PET spunbond (basis weight 15 g / m ² ). The basis weight of the obtained cyclodextrin-containing sheet was 284 g / m ² .

[Example 6]

Short-cut PET fibers were changed to softwood chemical pulp, and the softwood chemical pulp and the high-density polyethylene fiber were uniformly mixed in the air at a ratio (mass ratio) of 50/50 by using a web forming apparatus of the air- A sheet containing a cyclodextrin was obtained in the same manner as in Example 5 except that the web was formed. The basis weight of the obtained cyclodextrin-containing sheet was 284 g / m ² .

[Example 7]

A first carrier sheet 41 made of a PET spunbonded nonwoven fabric (15 g / m ² ) is formed on the specular endless belt 20 mounted on the conveyor 10 and driven by the first carrier sheet feeding means 40 Respectively.

A speculative material M that, while sucking the endless belt 20, and the inclusion, ginger components on the first carrier sheet 41 by the suction box 60 was sprayed with 24g / m ^2.

Subsequently, a second carrier sheet 51 made of a PET spunbond nonwoven fabric (15 g / m ² ) was laminated to obtain a laminated sheet.

The obtained laminated sheet was heat-pressed with an embossing roll having concave and convex portions to obtain a cyclodextrin-containing sheet having a basis weight of 54 g / m ² .

[Example 8]

A sheet containing cyclodextrin was obtained in the same manner as in Example 7 except that the oblique side of the laminated sheet was heat-sealed. The basis weight of the obtained cyclodextrin-containing sheet was 54 g / m ² .

[Example 9]

First on the carrier sheet 41, the material M / PE, instead of spraying the particle mixture of the powder, the air-laid web onto the material M is sprayed such that the 24g / m ^2, EVA-based adhesive to 5g / m ² is , And the sheet was bonded to a PE film (26 g / m ² ) to obtain a cyclodextrin-containing sheet in the same manner as in Example 2. The basis weight of the obtained cyclodextrin-containing sheet was 299 g / m ² .

[Example 10]

A cyclodextrin-containing sheet was obtained in the same manner as in Example 1, except that the material N in which a ginger ingredient was enclosed in cyclodextrin was used instead of the material G in which the ginger ingredient was enclosed in the cyclodextrin. The basis weight of the obtained cyclodextrin-containing sheet was 288 g / m ² .

[Example 11]

A cyclodextrin-containing sheet was obtained in the same manner as in Example 1 except that a material Q in which an I-menthol component was encapsulated in cyclodextrin was used instead of the material M in which a ginger component was encapsulated in cyclodextrin. The basis weight of the obtained cyclodextrin-containing sheet was 288 g / m ² .

[Example 12]

A material Q in which an I-menthol component is encapsulated in cyclodextrin is used instead of a material G in which a ginger component is encapsulated in cyclodextrin, short-cut rayon fibers are changed to softwood chemical pulp and polymer absorbing fibers (SAF) (PET / PE composite cis-core fibers) of a cis-core type were mixed in a ratio of 35/35/30 (mass ratio ) In the same manner as in Example 1, except that the air-laid web was formed while mixing uniformly in air. The basis weight of the obtained cyclodextrin-containing sheet was 288 g / m ² .

[Example 13]

A mixture of the material R and the polyethylene (PE) powder in which the rose flavor was bonded to the cyclodextrin was mixed at a ratio of 20/80 (by mass ratio) to obtain a particle mixture of the material R / PE powder. Rayon span lace (basis weight 28 g / m ² ) was used as the first and second carrier sheets. The mixture of the particles of the material R / PE powder was dispersed on the first carrier sheet so as to have a density of 10 g / m ² , and softwood chemical pulp and sheath-core type heat-sealable conjugate fiber (PET / PE composite cis-core fiber) 70/30 (mass ratio) while being uniformly mixed in air to form an air-laid web. The fiber mixture was then fed so that the basis weight of the short cut fibers per airlaid web part was 60 g / m ² . The PE powder was spread on the air-laid web to be 5 g / m ² , and the second carrier sheet was laminated thereon. In the same manner as in Example 2 except for the above, a cyclodextrin-containing sheet was obtained. The basis weight of the obtained cyclodextrin-containing sheet was 131 g / m ² .

[Example 14]

Material The same procedure as in Example 13 was carried out except that the particle mixture of the R / PE powder was dispersed to have a weight of 20 g / m ² to obtain a cyclodextrin-containing sheet. The basis weight of the obtained cyclodextrin-containing sheet was 141 g / m ² .

[Example 15]

A cyclodextrin-containing sheet was obtained in the same manner as in Example 14 except that chinoclose (basis weight: 40 g / m ² ) was used as the first and second carrier sheets. The basis weight of the obtained cyclodextrin-containing sheet was 165 g / m ² .

[Example 16]

As the first and second carrier sheets, a rayon span lace (basis weight 28 g / m ² ) was used and the particle mixture of the material R / PE powder was dispersed to be 20 g / m ² between the first and second carrier sheets, The obtained laminated sheet was passed through a box-type dryer of a hot air circulating conveyor oven type, and subjected to hot air treatment at 140 캜 to obtain a cyclodextrin-containing sheet having a basis weight of 76 g / m ² .

[Example 17]

As the first and second carrier sheets, PET / PE spun lace (basis weight 20 g / m ² ) having heat sealability was used and the material R was spread between the first and second carrier sheets so as to be 10 g / m ² , The obtained laminated sheet was passed through a box-type dryer of a hot air circulating conveyer oven type and hot-air treated at 140 캜 to obtain a cyclodextrin-containing sheet having a basis weight of 50 g / m ² .

[Example 18]

Air-laid the PE powder on the web 5g / m ² as a second carrier sheet dispensing, and so that, to put the tissue (basis weight 14g / m ^2), a hot-melt resin to PE film (basis weight 26g / m ²⁾ over the 10 g / m &lt; ² &gt; so as to be bonded to obtain a cyclodextrin-containing sheet. The basis weight of the obtained cyclodextrin-containing sheet was 329 g / m ² .

[Example 19]

Material A sheet was obtained in the same manner as in Example 10 except that the particle mixture of N / PE powder was dispersed to have a weight of 55 g / m ² . The basis weight of the obtained cyclodextrin-containing sheet was 313 g / m ² .

[Example 20]

The material of the M / PE dispersion such that the 14g / m ² of particles of the powder mixture, and the air laid web shortcut per part fiber basis weight was fed, the fiber mixture to be 56g / m ^2. Further, a cyclodextrin-containing sheet was obtained in the same manner as in Example 2 except that rayon span lace (basis weight 28 g / m ² ) was used as the first and second carrier sheets. The basis weight of the obtained cyclodextrin-containing sheet was 126 g / m ² .

[Comparative Example 1]

Material A sheet was obtained in the same manner as in Example 2 except that the particle mixture of the M / PE powder was not dispersed. The sheet thus obtained was made into small pieces each having a width of 100 mm and a length of 100 mm, and placed in a metal bat. 2.4 g of material M was dissolved in 100 ml of water to obtain aqueous solution S of material M. 10 ml of aqueous solution S (100 ml) was placed in a metal bath, and a small piece was immersed in the solution, placed in a dryer at 80 ° C for 2 hours and dried to obtain a cyclodextrin-containing sheet. The basis weight of the obtained cyclodextrin-containing sheet was 281 g / m ² .

 [Comparative Example 2]

Material A sheet was obtained in the same manner as in Example 2 except that the particle mixture of the M / PE powder was not dispersed. The basis weight of the obtained sheet (containing no cyclodextrin) was 258 g / m ² .

(Sensory Evaluation of Cyclodextrin-Containing Sheet 1)

The cyclodextrin-containing sheets obtained in Examples 1 to 20 and Comparative Example 1 were cut to prepare three test pieces each having a width of 50 mm and a length of 50 mm. Each test piece was placed in a 50 ml vial, and a vial to which 1 ml of water was added and a vial to which no water was added were prepared by injection or non-injection of water into the vial. The lid of the vial was closed and the odor intensity was determined in accordance with the criteria shown in Table 1, and evaluation was made by numerical value. The larger the value, the higher the intensity of the odor, indicating that many functional components are released from the cyclodextrin-containing sheet.

Odor Strength Criteria 0 No smell One Somewhat smell 2 I can see what kind of smell it is, but it has a weak smell 3 Easy to detect 4 A strong smell 5 A strong smell

(Sensory Evaluation of Cyclodextrin-Containing Sheet 2)

The cyclodextrin-containing sheet obtained in Example 2 and Comparative Example 1 was cut to prepare a test piece having a width of 50 mm and a length of 50 mm. Each test piece was placed in a 100 ml beaker, and 1 ml of water was added to the beaker, followed by drying in a dryer at 80 ° C for 2 hours. The sheet thus taken out was placed in a vial, and 1 ml of water was added. The lid was closed, and the strength of the resultant was determined according to the criteria shown in Table 1, and evaluation was made by numerical values. The larger the value, the higher the intensity of the odor, indicating that many functional components are released from the cyclodextrin-containing sheet.

(Sensory Evaluation of Cyclodextrin-Containing Sheet 3)

The cyclodextrin-containing sheet obtained in Examples 11 and 12 and the sheet obtained in Comparative Example 2 (not containing cyclodextrin) were cut to prepare a test piece having a width of 50 mm and a length of 50 mm. Each test piece was placed in a 100 ml beaker, and 1 ml of water at room temperature was added to the beaker. Then, the test piece was adhered to the skin for 5 minutes, and cold feeling was judged according to the criteria shown in Table 2, and evaluation was made by numerical values. The larger the value, the stronger the cold feeling.

Cold feeling criteria 0 Not cold at all One Faintly cold 2 A little cool 3 Can detect cool enough 4 Very cool

(Fungal resistance test for food)

The cyclodextrin-containing sheet obtained in Example 19 and the sheet in Comparative Example 2 were placed in a zipper-attached plastic bag together with the food, left at room temperature, visually observed for the development of the mold every one hour, and the day when the mold was confirmed was recorded (4 weeks). If the fungus can not be identified on the 4th week (day 28), the date on which the fungus was confirmed was recorded as "more than 28 days". Commercially available rice cakes (Namakiryumi, Maruzen Co., Ltd.) and white bread (Choujuku, PASCO) were used as the food.

(Deodorization test)

The deodorization property of the cyclodextrin-containing sheet obtained in Example 20 was evaluated in accordance with the method specified by the SEK Mark Textile Product Certification Standard of the Council of Textile Evaluation Technology, which is a general corporate corporation. As the evaluation gas, ammonia gas was used and the reduction rate of ammonia gas after one hour was measured. The larger the reduction rate, the higher the deodorization.

(Evaluation results)

Tables 3 to 7 show the results of the evaluation test. The mean value of the evaluations according to seven test participants was shown.

Test results of sensory evaluation 1 No water With water Odor intensity Example 1 0.6 2.8 Example 2 0.7 2.9 Example 3 0.7 2.8 Example 4 0.7 2.0 Example 5 0.5 2.6 Example 6 0.6 2.7 Example 7 0.5 3.0 Example 8 0.7 2.8 Example 9 0.7 2.7 Example 10 0.8 3.5 Example 11 0.7 2.2 Example 12 0.7 2.0 Example 13 0.3 2.5 Example 14 0.5 3.2 Example 15 0.3 2.5 Example 16 0.5 3.5 Example 17 0.5 3.5 Example 18 0.7 2.6 Example 19 0.8 3.8 Example 20 0.7 2.5 Comparative Example 1 0.7 1.5

Test results of sensory evaluation 2 Odor intensity Example 2 1.9 Comparative Example 1 0.7

Test results of sensory evaluation 3 Cold feeling Example 11 3.0 Example 12 3.5 Comparative Example 2 0.5

Test results of mold resistance test on food Mochi bread Example 19 More than 28 days More than 28 days Comparative Example 2 8 days 14 days

Test results of ammonia gas deodorization test Decrease rate after 1 hour Example 20 97%

The cyclodextrin-containing sheet of the present invention exhibited high odor strength in the presence of water. Further, the cyclodextrin-containing sheet of the present invention exhibited higher odor intensity than that of the comparative example when moisture was once applied, and then water was added thereto again. That is, it is considered that the cyclodextrin-containing sheet of the present invention is superior to the comparative example in that the functional ingredient lost by volatilization or the like is small during the period from the preparation to the test, and the sustained release of the functional ingredient is excellent.

Further, the cyclodextrin-containing sheet of the present invention containing the cyclodextrin in which the I-menthol component was enclosed exhibited a particularly cold feeling as compared with Comparative Example 2 which did not contain the cyclodextrin.

Furthermore, it has been confirmed that the cyclodextrin encapsulating the horseradish having the anti-fungal performance releases the horseradish root component in the air or in the food by the moisture, thereby exhibiting antifungal properties of the food.

Further, the cyclodextrin releasing the functional ingredient can encapsulate other components, and thus, a sheet having a deodorizing performance can be provided.

As described above, the cyclodextrin-containing sheet of the present invention has been exemplarily described not for the purpose of limitation. Since the cyclodextrin releases the functional ingredient encapsulating the water by imparting moisture, the sheet obtained in the present invention can effectively release the functional ingredient by imparting water. The temperature of the water to be imparted does not matter, but the release of the functional component may be made efficient by increasing the water temperature. Since cyclodextrin does not release the functional ingredient encapsulated in the absence of water, the cyclodextrin can be prepared and stored without releasing the functional ingredient. For example, when a functional ingredient having a strong odor is used, the odor can be prevented from remaining in the production process. Further, since cyclodextrin can stabilize a substance which is weak to ultraviolet ray or heat and a substance which has high volatility in a liquid state, it is possible to prevent the deterioration of the functional ingredient, efficiently release the functional ingredient, The sheet can be produced. Further, the cyclodextrin releasing the functional ingredient can encapsulate other components, so that it is possible to provide, for example, a sheet having a deodorizing performance.

The amount of water added to the sheet obtained in the present invention may be such that the entire sheet is soaked even if the sheet is wetted with a minute amount. Water to be imparted may contain other components as long as it contains water. For example, it may be a liquid contained in a body fluid, an animal or animal, an arbitrarily mixed liquid artificially mixed with alcohol, or the like.

1: Web forming device
30: Web raw material supply means
41: first carrier sheet
51: second carrier sheet
W: Air Raid Web
A and B: heat-sealable resin
C: Cyclodextrin
F: Fiber
M: Ingredients containing ginger ingredients in cyclodextrin
N: Ingredients containing horseradish to the cyclodextrin
Q: Ingredients in which cyclodextrin is encapsulated with I-menthol
R: Ingredients of rosin fragrance encapsulated in cyclodextrin
S: aqueous solution of material M
Y, Z: Additive
100: Cyclodextrin-containing layer
110: Cyclodextrin-containing layer containing fibers
120: Cyclodextrin-containing layer containing heat-sealable resin A
200: a layer containing the heat-sealable resin B
300: other layer
500: adhesive layer
1010: Cyclodextrin-containing layer containing heat-sealable resin A
1020: Cyclodextrin-containing layer containing heat-sealable resin A and fibers
1030: Cyclodextrin-containing layer containing heat-sealable resin A, fiber and additive Y
1040: Cyclodextrin-containing layer containing heat-sealable resin A, fiber and additive Z
3010: Non-woven fabric manufactured by dry process using wood pulp as the main material
3020: Non-woven fabric including pulp and synthetic fibers (may contain SAF)
3030: Tissue
3040: Any nonwoven fabric
3050: Film
3060: Any layer (film, nonwoven fabric, etc.)

Claims (7)

A cyclodextrin-containing sheet comprising a cyclodextrin-containing layer in which a functional ingredient is enclosed, wherein the cyclodextrin-containing layer is provided by a dry method. The method according to claim 1,
Wherein the cyclodextrin-containing layer comprises fibers,
And the cyclodextrin powder is retained in the pores formed by the fibers. 3. The method according to claim 1 or 2,
Wherein the cyclodextrin-containing layer comprises a heat-sealable resin A,
Wherein the cyclodextrin-containing layer is obtained by melting the heat-sealable resin A in a mixture containing the powder of the cyclodextrin and the heat-sealable resin A. 4. The method according to any one of claims 1 to 3,
Wherein the layer adjacent to the cyclodextrin-containing layer comprises a heat-sealable resin B,
Wherein the layer adjacent to the cyclodextrin-containing layer is obtained by disposing the heat-sealable resin B on the surface of the cyclodextrin-containing layer and melting the heat-sealable resin B by heat. 5. The method according to any one of claims 1 to 4,
CYCLODEXTRIN-CONTAINED SHEET HAS SEALED. 6. The method according to any one of claims 1 to 5,
Wherein the adhesive layer is provided adjacent to the cyclodextrin-containing layer. 7. The method according to any one of claims 1 to 6,
A cyclodextrin-containing sheet which is embossed.

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