JP6150984B2 - Scented tissue paper - Google Patents

Description

  The present invention relates to a scented tissue paper that emits a scent.

  Some tissue papers are scented and accepted by consumers. This scented tissue paper is generally a high value-added tissue paper containing a moisturizing agent, also called a lotion chemical, that gives a higher level of feeling. There are known mint-based and mint-based scents, and citrus-based scents that give a sweet impression.

  In such a scented tissue paper, the fragrance is not directly applied to the tissue paper so that the scent is stably and continuously scented until the user uses the tissue paper. They are encapsulated in microcapsules and dispersed in a moisturizer solution. By encapsulating the fragrance in the microcapsule in this way, the microcapsule is broken due to sliding of the tissue paper and the storage box when taking out the tissue paper from the storage box, and a fragrance is emitted, and during the storage period In addition, the fragrance is stably and continuously emitted until the user uses up the tissue paper without any transpiration.

  However, this conventional tissue paper with a fragrance has a problem in that the yield when the fragrance is encapsulated in the microcapsule is poor, the microcapsule is expensive, and the product cost is high. The outer shell of the microcapsule is a resin material such as melamine resin, urea resin, or urethane resin. When such a resin material bites a runny nose or wipes the mouth, it is not intended to enter the body. There was also a problem that there was a risk of being taken in.

  As described above, the conventional tissue paper with a fragrance has a problem that the production is complicated and the cost is high, and there is a demand for further safety.

JP 2005-237745 A JP 2008-200124 A

  Therefore, a main object of the present invention is to provide a tissue paper with a fragrance that is easy to manufacture and low in cost, and that is safer than conventional ones.

The present invention that has solved the above problems is as follows.
[Invention of Claim 1]
A moisturizing type tissue paper having a paper thickness of 100 to 200 μm and a basis weight per ply of 10 to ²⁰ g / m ² and containing a 2-3 ply moisturizing agent,
Does not include microcapsules containing fragrance,
A scented tissue paper comprising 0.01-1 g / m ^{2 of} an inclusion body in which a fragrance component is included in a cyclodextrin.

[Invention of Claim 2]
The scented tissue paper according to claim 1, wherein the humectant is an aqueous humectant containing a polyol.

[Invention of Claim 3]
The tissue paper with a fragrance according to claim 2, wherein the cyclodextrin is β-cyclodextrin.

[Invention of Claim 4]
The scented tissue paper according to claim 3, wherein the perfume component contains l-menthol.

(Function and effect)
The tissue paper with a fragrance of the present invention has a cup-shaped cyclic structure, and includes a cyclodextrin having a property of including a hydrophobic molecule as a guest molecule inside, and including the guest molecule as a fragrance component The body was included. Since cyclodextrin releases guest molecules included in the presence of moisture, the tissue paper with fragrance of the present invention emits a slight scent when the tissue paper absorbs moisture in the atmosphere and absorbs runny nose. A fragrance is emitted when dripping and absorbing a large amount of water.

  Here, cyclodextrin is stable to bases and heat, has relatively stable properties to acids, is easy to handle, is inexpensive, and is used in foods and pharmaceuticals. Compared with a resin material constituting the outer shell of a microcapsule used in tissue paper with a fragrance, the cost is low and the safety is excellent. In addition, the method of inclusion of guest molecules is also high in yield and low in cost, such as an emulsification method and a saturated aqueous solution method.

  Therefore, the scented tissue paper of the present invention is easier to manufacture and less expensive than the scented tissue paper using conventional microcapsules, and also has high safety.

  Furthermore, it is desirable that the scented tissue paper of the present invention contains a moisturizing agent to make it more luxurious. The humectant may be either an oily humectant mainly composed of an oily component or an aqueous humectant mainly composed of an aqueous component, but an aqueous humectant is more preferable. Aqueous moisturizers take moisture in the atmosphere due to the hygroscopicity of polyols and the like, and give tissue paper a moist feeling. When using such an aqueous moisturizer, the moisturizing action gives the tissue paper a moist feeling. A perfume component, which is a guest molecule, is gradually released from the inclusion body, and a faint scent is emitted continuously.

  On the other hand, cyclodextrins generally include α-cyclodextrin (6 glucose), β-cyclodextrin (7 glucose), and γ-cyclodextrin (8 glucose) depending on the number of glucose bound. -Since cyclodextrin is hardly soluble in water and is inexpensive, it is desirable to use β-cyclodextrin in the present invention.

  In addition, the α, β, and γ cyclodextrins have different inner diameters, and guest molecules corresponding to the inner diameters are incorporated therein. The inner diameter is 0.5 to 0.6 nm for α-cyclodextrin, 0.7 to 0.8 nm for β-cyclodextrin, and 0.9 to 1.0 nm for γ-cyclodextrin. And l-menthol, which is a mint-based fragrance component that gives tissue paper a refreshing feeling and a refreshing feeling, is easy to make inclusion bodies with β-cyclodextrin. Therefore, in the tissue paper with a fragrance according to the present invention, it is particularly desirable to contain a clathrate containing 1-menthol as a guest molecule in β-cyclodextrin.

  On the other hand, cyclodextrin releases guest molecules and then takes them back into the empty interior. Therefore, in the tissue paper with a scent according to the present invention, the fragrance component is diffused when biting the runny nose, and then the tissue paper biting the runny nose is discarded in a trash can etc. As a result, it has a unique effect that it does not have in the conventional tissue paper with a fragrance.

  As described above, according to the present invention, it is possible to provide a tissue paper with a fragrance that is easy to manufacture, low in cost, and safer than the conventional one.

It is sectional drawing of the two-ply tissue paper based on this invention. It is a figure for demonstrating generation | occurrence | production of the fragrance in the tissue paper which concerns on this invention. It is a figure for demonstrating the deodorizing effect in the tissue paper which concerns on this invention.

  Below, it demonstrates in full detail, referring drawings of embodiment of the tissue paper with a fragrance concerning this invention. The tissue paper with a fragrance according to the present invention contains a clathrate containing a fragrance component in cyclodextrin.

The tissue paper with fragrance according to the present invention preferably has a 2-ply or 3-ply ply structure. Further, the basis weight and paper thickness of the scented tissue paper according to the present invention are not particularly limited, but the basis weight according to JIS P 8124 is 10 to 20 g / m ² per ply, and the paper thickness (diaper thickness gauge: Peacock manufactured by Ozaki Seisakusho). Is preferably 100 to 200 μm. When the basis weight and the paper thickness are out of the above ranges, it is not preferable in terms of strength and softness as tissue paper.

  The base paper constituting the ply of scented tissue paper according to the present invention is a papermaking raw material obtained by adding a known agent such as a dry paper strength agent or a wet paper strength agent to a pulp slurry in a papermaking facility having a Yanki dryer. Paper crepe paper can be used.

  The pulp raw material in the scented tissue paper according to the present invention is preferably composed of NBKP (conifer kraft pulp) and LBKP (hardwood kraft pulp). Although used paper pulp may be blended as appropriate, it is desirable that it is composed only of NBKP and LBKP of virgin pulp because it is desirable in terms of the texture of the resulting tissue paper. In this case, the blending ratio (JIS P 8120) is preferably NBKP: LBKP = 20: 80 to 80:20, and particularly preferably NBKP: LBKP = 30: 70 to 60:40.

  On the other hand, the inclusion body in which the fragrance component is included in the cyclodextrin according to the present invention is a known α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, such as an emulsification method and a saturated aqueous solution method. It can be produced by including a fragrance ingredient by the above method. The type of cyclodextrin to be used may be determined as appropriate in relation to the fragrance component, and is not necessarily limited in the present invention, but β-cyclodextrin is particularly suitable because it is inexpensive, hardly dissolves in water and has excellent handleability. .

  On the other hand, the perfume component according to the present invention may be appropriately selected according to the type of cyclodextrin, and is not particularly limited, but as specific examples, Ryusen Incense, Benzo, Kaigo Incense, Saiko Incense, Ding Natural oils such as oil, galvanum, jasmine absolute, labutnam, mate tea, merilot, mimosa, musk tonkin, myrrh, oak moss or moss de chine, milk incense, dipper incense, oris, baturi, rosemary oil, sandalwood oil, vetiver oil, violet leaf absolute Perfume, higher alcohol, aldehyde, benzaldehyde, benzoic acid, cinnamic acid, cinnamic aldehyde, cinnamic alcohol, coumarin, ester, indole, ketone, salicylic acid and related compounds, terpenoids, vanillin and various synthetic perfumes Mixing two or more It can be mentioned. Commercial products can also be used.

  Among the fragrance ingredients, l-menthol has a skin irritation effect in addition to the mint flavor, and is particularly refreshing and refreshing. And is compatible with the above-mentioned inexpensive β-cyclodextrin and is included as a guest molecule. Therefore, in the tissue paper with a fragrance according to the present invention, one containing a clathrate in which 1-menthol is clathrated as a guest molecule in β-cyclodextrin can be shown as a desirable example.

Here, content of the inclusion body in the tissue paper with a fragrance which concerns on this invention is not specifically limited. It can be determined as appropriate depending on the effect of the fragrance component and the strength of the scent. If it is exemplified as a suitable range, it is 0.01 to 1 g / m ² . If it is in this range, the scent will be sufficiently felt.

  On the other hand, when the inclusion body is contained in the tissue paper, it can be adhered by printing or coating using a known binder such as starch or polyvinyl alcohol. However, since adhesion by the binder makes the paper hard, it is preferable that the paper is dispersed in a moisturizing agent that imparts moisture retention to the tissue paper, and the moisturizing agent is applied to the tissue paper base. Because scented tissue paper is a high-value-added product, it is based on moisturizing tissue paper, which is also called a lotion tissue with a texture that is clearly different from general-purpose products, especially in terms of surface smoothness and moistness. It is good. Therefore, it is desirable to contain the humectant in such a manner that the effect of the humectant is obtained by dispersing the humectant.

  Here, there are various moisturizing agents used for moisturizing type tissue paper, but water-based moisturizers mainly composed of water and polyol (usually also called “water-based chemicals” or “water-based lotion chemicals”), mainly water-insoluble. And oil-based moisturizers that are semi-solid at room temperature. The water-based moisturizing agent has excellent affinity with the pulp fibers constituting the sheet when applied to the sheet, impregnates in the thickness direction of the sheet (also referred to as the Z direction), and acts to modify the entire sheet, The oil-based humectant mainly acts to coat the surface, and particularly improves the smoothness of the surface. The moisturizing agent according to the present invention may be either an aqueous moisturizing agent or an oily moisturizing agent, but when it is an aqueous moisturizing agent, moisture is always taken into the paper due to moisture absorption by the polyol. As a result, the inclusion body releases a fragrance as a guest molecule, and a faint scent is emitted continuously, which is desirable.

  However, since the clathrate using cyclodextrin releases guest molecules in the presence of a large amount of water, the water content in the moisturizing agent is 20% by weight or less, preferably 10% by weight or less at the time of application. It is good to do. In addition, in order to reduce the amount of the fragrance component diffused at the time of application, the time from mixing the clathrate with the moisturizing agent to applying it to the tissue paper base paper should be short, and it should be applied within 4 hours. Is desirable.

  The oil-based moisturizer is mainly composed of waxes and fats and oils, and is generally liquid or semi-solid (cream) at room temperature and pressure. Examples of the fats and oils include white petrolatum, liquid paraffin, coconut oil, palm oil, and saturated fatty acids such as palmitic acid. In the case of using this oil-based humectant, the inclusion body is preferably contained in an amount of 0.1 to 5% by weight. The coating amount is desirably 10 to 30% by weight of the tissue paper base paper. If the amount is less than 10% by weight, the improvement of the surface smoothness by the oil-based moisturizing agent may not be sufficient, and if it exceeds 30% by weight, stickiness may be felt.

  On the other hand, water-based moisturizers generally contain about 70 to 90% by weight of polyols such as glycerin and propylene glycol and about 10 to 20% by weight of water. When an aqueous chemical solution is used, the inclusion body is preferably contained in an amount of 0.1 to 8% by weight. The coating amount is preferably 15 to 35% by weight of the tissue paper base paper. If it is less than 15% by weight, the flexibility may not be sufficiently improved, and if it exceeds 35% by weight, stickiness may be felt.

  In addition, when the clathrate is dispersed in the aqueous humectant and applied to the tissue paper base, the clathrate stays relatively on the coated surface, and moisture is absorbed and diffused between the fibers, so it continues even after coating. Therefore, it is not affected by the moisture in the humectant. In particular, the tendency to remain on the coated surface with β-cyclodextrin becomes significant.

  In the humectant and the binder, known pH adjusters, surfactants, and the like can be used as necessary as long as they do not affect the clathrate.

  On the other hand, in the tissue paper with a scent according to the present invention, preferred positions for inclusion of inclusion bodies are the front and back surfaces of the tissue paper. As shown in FIG. 1, when two plies which are the preferable forms of the tissue paper 100 are taken, they are laminated outer surfaces A and A (in the figure, each ply is indicated by a symbol P). The laminated inner surface (the surface where the plies P, P are facing each other) has a tendency to unintentionally shorten the period during which the scent is emitted because moisture due to moisture absorption tends to accumulate and is difficult to evaporate.

  When the laminated outer surfaces A and A are as described above, a large amount of water contained in the runny nose 20 comes into contact with the clathrate 10 and 10 when the nose is bitten with tissue paper 100 during use, as shown in FIG. In that case, cyclodextrin 11,11 ... releases perfume ingredients 12,12 ... which are guest molecules, and emits a sufficient scent G.

  And since cyclodextrin 11,11 ... discharge | releases the fragrance | flavor 12,12 ... which is a guest molecule as above-mentioned, in order to take in a guest molecule again, in the tissue paper 100 with a fragrance which concerns on this invention, as shown in FIG. When the fragrance component is released after biting the runny nose, if it is discarded in the trash, the off-flavor components 13, 13 ... in the trash can be taken up as guest molecules by the cyclodextrins 11, 11 ... Deodorizing function is demonstrated.

  On the other hand, in the scented tissue paper according to the present invention, for example, a bundle of a plurality of tissue papers is stored in a rectangular parallelepiped storage box, and the upper surface of the storage box (also called a carton box or tissue carton). Tissue paper products that are used by sequentially pulling out tissue paper one by one from the take-out port provided in the container (when the sheet is taken out, the next sheet is continuously pulled out from the take-out port is called a pop-up type). it can.

  Such tissue paper products can be manufactured with known manufacturing equipment for this type of product. For example, a rotary interfolder or a multi-stand interfolder can be used for manufacturing a bundle.

  DESCRIPTION OF SYMBOLS 100 ... Tissue paper, P ... Ply, A ... Front and back of tissue paper (laminated outer surface of ply), G ... Fragrance, 10 ... Inclusion body, 11 ... Cyclodextrin, 12 ... Fragrance component, 13 ... Odor component, 20 ... Runny nose (moisture);

Claims (4)

A moisturizing type tissue paper having a paper thickness of 100 to 200 μm and a basis weight per ply of 10 to ²⁰ g / m ² and containing a 2-3 ply moisturizing agent,
Does not include microcapsules containing fragrance,
A scented tissue paper comprising 0.01-1 g / m ^{2 of} an inclusion body in which a fragrance component is included in a cyclodextrin.   The scented tissue paper according to claim 1, wherein the humectant is an aqueous humectant containing a polyol.   The tissue paper with a fragrance according to claim 2, wherein the cyclodextrin is β-cyclodextrin.   The scented tissue paper according to claim 3, wherein the perfume component contains l-menthol.