JP5486483B2 - Air freshener and building materials using it - Google Patents

Description

  The present invention relates to a fragrance and a building material using the fragrance.

  In recent years, there has been an increasing need to clean indoor environments, particularly air, from the viewpoint of the spread of highly airtight and highly insulated houses and the improvement of comfort in sanitary environments.

  Against this background, products related to odor such as deodorants and fragrances have become widespread.

  For example, in the case of fragrances, as existing products, a type in which fragrance components are volatilized using a standing filter paper or the like, a product in which a fragrance is adsorbed on a porous body such as beads, aroma, etc. are agar, gelatin, etc. Mixed ones are commercially available.

  The fragrance can feel the odor of the fragrance because the fragrance component is volatilized and gasified. However, if the amount of radiation is not controlled, the radiation will not last for a long time.

  As a method for controlling the amount of emission, for example, an active method is used. In the active method, a cartridge containing a fragrance component is heated electrically, or a fragrance is sprayed, and the fragrance component is diffused as necessary to control the emission timing. However, these methods can control the emission timing of the fragrance component, but require an electrical or mechanical mechanism. Further, in the method of heating the cartridge with electricity, the cartridge cannot be enlarged and needs to be replaced.

  Therefore, as a technique for ensuring the sustainability of the fragrance, a technique capable of controlling the emission amount and the emission timing is required rather than a passive technique that uses heat and power as it is.

  For example, since building materials such as joinery and interior materials always face the indoor space, it is desirable if a fragrance can be incorporated therein by a passive technique. For example, it is conceivable to control the amount of fragrance components diffused by utilizing the temperature difference between seasons and day and night, but such technology has not been achieved at present. For example, summer is hot and it is a season where fragrance is particularly desirable from the viewpoint of comfort, etc. However, if the amount of fragrance components can be increased selectively in such summer, long-term emission can be sustained on a yearly basis. Sexuality can also be enhanced.

  Conventionally, as a passive technique, a technique has been proposed in which a fragrance component is adsorbed on a porous material or contained in a microcapsule to control the amount of emission and to release slowly (see Patent Documents 1 to 3).

JP 05-003910 A JP 2002-345951 A JP 2008-229235 A

  However, it has not been possible to prevent the fragrance component from being continuously diffused. Therefore, especially in building materials, there is a demand for a fragrance that can control the amount and timing of emission while being passive.

  The present invention has been made in view of the circumstances as described above, and the amount and timing of fragrance components can be controlled in a passive manner in accordance with the temperature difference such as the season or day and night, and the fragrance can be sustained. It is an object to provide a fragrance that can improve the property and a building material using the fragrance.

  In order to solve the above-described problems, the fragrance of the present invention is characterized by containing paraffin that melts at summer temperature, paraffin that does not melt at summer temperature, and an aroma component.

  In this fragrance, the phase transition temperature of paraffin that melts at summer temperature is preferably 30 to 40 ° C.

  In this fragrance, the phase transition temperature of paraffin that does not melt at summer temperature is preferably 45 to 120 ° C.

  In this fragrance, the fragrance component preferably has at least one of antibacterial and antifungal properties.

  The building material of the present invention comprises a breathable face material and a non-breathable cover material arranged on the back side thereof, and the above-mentioned fragrance is applied or impregnated on the back surface of the face material, It is characterized by being housed in a space surrounded by.

  The building material of the present invention is characterized by including a fibrous face material impregnated with the above fragrance or applied to at least one of the front and back surfaces.

  According to the present invention, the amount and timing of fragrance components can be controlled by a passive method according to the temperature difference such as the season or day and night, and the fragrance sustainability can be improved.

  The present invention is described in detail below.

  The fragrance of the present invention contains paraffin that melts at summer temperature, paraffin that does not melt at summer temperature, and a fragrance component, and mainly dissipates the fragrance component passively in the summer when the temperature is highest throughout the year. It is a feature. In this way, by using a paraffin that melts at a temperature in summer and a paraffin that does not melt at a certain temperature, only a part of the paraffin, that is, only a paraffin that melts at a summer temperature, undergoes a phase transition to dissipate aromatic components. Can do. Thereby, it is possible to control the emission amount and the emission timing by a passive method without using an electrical or mechanical mechanism, and it is possible to improve the sustainability of the fragrance.

  The paraffin used in the present invention is a hydrocarbon that is solid at room temperature and is composed of a saturated linear, branched, or cyclic hydrocarbon. For example, a paraffin derived from mineral oil, a paraffin derived from Fischer-Tropsch synthesis, a paraffin derived from a melt obtained by thermal decomposition of plastic (recycled paraffin), or the like can be used.

  Microcrystalline paraffins (microwaxes) from distillation residues or heavy distillates of paraffin-based crude oil are also included in the paraffin.

  Among the paraffins, the phase transition temperature (melting point) of normal paraffin is exemplified as follows. n-heptadecane (carbon number 17): 22 ° C, n-octadecane (carbon number 18): 28 ° C, n-eicosane (carbon number 20): 37 ° C, n-docosane (carbon number 22): 44 ° C, n- Pentacosane (25 carbon atoms): 54 ° C., n-octacosane (28 carbon atoms): 61 ° C., n-triacontane (30 carbon atoms): 66 ° C., 40 carbon normal paraffin: 82 ° C., 50 carbon normal Paraffin: 92 ° C., normal paraffin having 100 carbon atoms: 115 ° C.

  The paraffin that melts at the summer temperature and the paraffin that does not melt at the summer temperature are preferably composed mainly of one type of paraffin, but may be a mixture having a distribution in molecular weight and compound type.

  In the present invention, the phase transition temperature of paraffin can be measured by, for example, a melting point measurement method defined in JIS K0064.

  In the present invention, the following matters are considered for “melting at summer temperature” and “not melting at summer temperature”. When the phase transition temperature of paraffin is 25 to 40 ° C. (preferably 30 to 40 ° C.), it is “melted at summer temperature”. When the phase transition temperature of paraffin is 45 ° C. or higher (preferably 45 to 120 ° C., more preferably 45 to 90 ° C.), it is determined that “does not melt at summer temperature”.

  The fragrance of the present invention can be preferably used particularly in buildings, facilities, etc. in which the room temperature is linked to the summer temperature. In such buildings, facilities, etc., a cycle of melting and solidifying paraffin occurs in the room in accordance with the above-described conditions, and control of the amount of emission (sustained release) can be achieved passively. Also, when entering the autumn season, the emission of aromatic components is remarkably suppressed, and the emission timing can be controlled according to the season.

  In addition, even in buildings and facilities with cooling, for example, buildings, facilities, etc. that do not turn on cooling unless the room temperature exceeds a certain high temperature, and some rooms do not work In such a case, it can be used in a state in which the cycle of melting and solidifying paraffin shows the same tendency as described above.

  The paraffin that melts at the summer temperature used in the present invention preferably has a phase transition temperature of 25 to 40 ° C, more preferably 30 to 40 ° C. If the phase transition temperature is too low, it may be easily melted at temperatures other than summer temperatures and the fragrance sustainability may be lowered. If the phase transition temperature is too high, it may be difficult to melt at a relatively low temperature even in summer, and the dispersibility of the fragrance component may decrease.

  The paraffin which does not melt at the summer temperature used in the present invention preferably has a phase transition temperature of 45 ° C. or higher, more preferably 45 to 120 ° C., and more preferably 45 to 90 ° C. If the phase transition temperature is too low, the amount of fragrance generated may increase at the summer temperature and the fragrance sustainability may decrease. If the phase transition temperature is too high, the amount of aroma generated may decrease.

  The blending ratio of the paraffin that melts at the summer temperature and the paraffin that does not melt at the summer temperature in the fragrance of the present invention is preferably 10:90 to 90:10, more preferably 30:70 to 70:30, in mass ratio. It is. If the blending ratio of paraffin that melts at summer temperature is too high, the sustainability of the fragrance may decrease. If the blending ratio of the paraffin that does not melt at the summer temperature is too high, the fragrance component may be reduced.

  The fragrance component used in the present invention is not particularly limited as long as it is a volatile and aromatic substance, and has been conventionally used in the fields of cosmetics, pharmaceuticals, quasi drugs, foods, and the like. A fragrance | flavor etc. can be used. For example, natural fragrances, synthetic fragrances, blended fragrances and the like can be used.

  Although it does not specifically limit as natural fragrance | flavor, For example, lemon oil, lime oil, spearmint oil, jasmine oil, orange oil, pine oil, bran oil, eucalyptus oil, lavender oil, musk etc. can be used. These may be used alone or in combination of two or more.

  Although it does not specifically limit as a synthetic | combination fragrance | flavor, For example, hinokitiol, limonene, linalool, eugenol, citronellal, vanillin, carvone, yonon, muscone, rose oxide, indole, geranyl acetate, ethyl benzoate, etc. can be used. These may be used alone or in combination of two or more.

  Moreover, a fragrance | flavor component can mix | blend and use a solvent, water, surfactant, etc. as needed.

  The fragrance component preferably has at least one of antibacterial and antifungal properties. Thereby, the fragrance | flavor component which has antibacterial property and antifungal property can be unconsciously dissipated at the time of the summer when temperature rises and bacteria and molds are easy to grow. Therefore, an antibacterial / antifungal action can be exhibited without using an electrical or mechanical mechanism, and the room can be kept clean.

  As the aromatic component having antibacterial properties, for example, thyme oil, cinnamon bark oil, basil oil, eucalyptus oil, clove oil, lemongrass oil, casscha oil, spearmint oil, cumin oil, tarragon oil and the like can be used.

  Examples of aromatic components having antifungal properties include citral, citronellal, trans-2-hexenal, octylaldehyde, trans-2-undecenal, undecylene aldehyde, dimethyltetrahydrobenzaldehyde, benzaldehyde, salicylaldehyde, 3-phenylpropanal, Cuminaldehyde, furfural, geraniol, citronellol, 9-decenol, decanol, eugenol and the like can be used.

  The blending amount of the fragrance component in the fragrance of the present invention is preferably 0.1 to 20% by mass, more preferably 0.5 to 5% by mass with respect to the total amount of the fragrance. If the amount of the fragrance component is too small, the fragrance may decrease, and if the amount of the fragrance component is too large, the moldability may decrease.

  In the fragrance | flavor of this invention, in the range which does not impair the effect of this invention, other components other than the said component can be mix | blended as needed. As such other components, for example, an antifoaming agent or the like can be used.

  The fragrance | flavor of this invention can be manufactured by the following methods etc., for example. First, paraffin that melts at summer temperature, paraffin that does not melt at summer temperature, and other components are melted and mixed under heating. Furthermore, a fragrance | flavor agent can be manufactured by adding a fragrance | flavor component, mixing thoroughly, stirring, and cooling after that.

  The fragrance of the present invention can be used for indoor fragrances and the like. Since it is especially passive, it can be used suitably for building materials. The construction material can be applied to, for example, fittings such as doors, fences, door frames, and sills, and interior materials such as walls, ceilings, and floors.

  The building material of the present invention comprises a breathable face material and a non-breathable cover material disposed on the back side thereof, and the surface of the face material is coated or impregnated with the above-described fragrance of the present invention. It is accommodated in a space surrounded by the material and the cover material.

  According to such a structure, since many aroma components can be contained in a building material, the space which can maintain the dispersion | distribution of an aroma component for a long period can be provided.

  As the face material, for example, a board made of a breathable material capable of transmitting the fragrance component of the fragrance can be used. Specifically, for example, a wood fiber board such as an MDF board, a gypsum board, or the like can be used.

  By applying or impregnating the fragrance of the present invention on the back surface of the face material and disposing a non-breathable cover material so as to cover the portion, the present invention has the fragrance inside through the ventilation layer. Building materials can be manufactured.

  Moreover, the building material of this invention is equipped with the fibrous surface material by which the fragrance | flavor of this invention demonstrated above was impregnated or apply | coated to at least one of front and back.

  According to such a structure, since many aroma components can be contained in a building material through a fibrous face material, the space which can maintain the dispersion | distribution of an aroma component for a long period can be provided.

  As the fibrous face material, for example, paper, nonwoven fabric, or the like can be used. Then, the fragrance of the present invention is heated and melted and impregnated into a fiber face material or applied to at least one of the front and back surfaces, and then cooled to produce a fibrous face material impregnated or coated with the fragrance. be able to.

  For example, this fibrous surface material can be arranged on the front surface or the back surface of a fitting or interior material to make a building material.

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.
1. Fragrance <Example 1>
As paraffin, paraffin that melts at summer temperature (n-nonadecane phase transition temperature 33 ° C, manufactured by Wako Pure Chemical Industries), paraffin that does not melt at summer temperature (paraffin phase transition temperature 50-52 ° C, manufactured by Wako Pure Chemical Industries) Two types of paraffin were used.

  Mix these two paraffins in a mass ratio of 50:50, add 5% by mass of stearic acid as an antifoaming agent to the total amount of the two paraffins, boil in hot water at 60 ° C and melt Mixed. Furthermore, after adding 1 mass% of hinokitiol as an aromatic component to the mixture and mixing, 20 g of the mixture was poured into a glass petri dish of φ70, and then cooled to prepare an aromatic agent.

<Example 2>
Two kinds of paraffin were mixed so as to have a mass ratio of 30:70, and a fragrance was prepared in the same manner as in Example 1 except that.

<Example 3>
Two kinds of paraffin were mixed at a mass ratio of 70:30, and a fragrance was prepared in the same manner as in Example 1 except that.

<Comparative Example 1>
A fragrance was prepared in the same manner as in Example 1 except that only one type of paraffin (phase transition temperature 33 ° C.) was used.

<Comparative example 2>
A fragrance was prepared in the same manner as in Example 1 except that only one type of paraffin (phase transition temperature 50 to 52 ° C.) was used.

<Comparative Example 3>
Without using paraffin, only the same amount of the fragrance component as in Example 1 was put in a petri dish to make a fragrance.

The following evaluation was performed about Examples 1-3 and Comparative Examples 1-3.
[Sensory evaluation / Appearance evaluation]
Each fragrance was heated in an atmosphere of 35 ° C. × 50% RH in a constant temperature and humidity chamber, taken out from the constant temperature and humidity chamber after 24 hours, and was subjected to sensory evaluation based on the following criteria as to whether odors were felt. .

  Then, after hold | maintaining for 24 hours in 20 degreeC x 50% atmosphere, it took out from the constant temperature and humidity tank, and performed the same sensory evaluation.

  Then, after heating again in 35 degreeC x 50% atmosphere and hold | maintaining for 24 hours, it took out from the constant temperature and humidity chamber, and performed the same sensory evaluation. Moreover, the appearance state was also confirmed and the appearance evaluation of the molten state was performed.

[sensory evaluation]
◎: The odor of the fragrance is felt strongly. ○: The odor of the fragrance is felt. △: The odor of the fragrance is weak.

  The evaluation results are shown in Table 1.

  From Table 1, it was confirmed that the fragrance using paraffin that melts at summer temperature diffuses at a predetermined temperature. Furthermore, it was confirmed that the use of two types of paraffin, which melts at summer temperature and paraffin that does not melt at summer temperature, improves the sustainability of fragrance.

2. Building material using fragrance <Example 4>
200 g / m ² of the fragrance of Example 1 which has been bathed in water at 60 ° C. on the back of a gypsum board with front and back plain paper with diatomaceous earth (“Sushido No.” manufactured by Panasonic Electric Works Co., Ltd., thickness 9.5 mm). This was applied and dried at room temperature for 1 week.

  This was cut into 10 cm square, and the back and side surfaces were covered with aluminum tape as a cover material to obtain a building material sample.

<Example 5>
A building material sample was prepared in the same manner as in Example 4 except that the fragrance used was that of Example 2.

<Example 6>
A building material sample was prepared in the same manner as in Example 4 except that the fragrance used in Example 3 was used.

<Comparative Example 4>
The building material sample was produced like Example 4 except having used the thing of the comparative example 1 as a fragrance | flavor.

<Comparative Example 5>
The building material sample was produced like Example 4 except having used the thing of the comparative example 2 as a fragrance | flavor.

<Comparative Example 6>
The building material sample was produced like Example 4 except having used the thing of the comparative example 3 as a fragrance | flavor.

<Example 7>
On the back of a commercially available MDF board (thickness 2.5 mm), the fragrance of Example 1 bathed at 60 ° C. was applied by brushing to 200 g / m ² and dried at room temperature for 1 week.
This was cut into 10 cm square, and the back and side surfaces were covered with aluminum tape to obtain a building material sample.

<Example 8>
A building material sample was prepared in the same manner as in Example 7 except that the fragrance used in Example 2 was used.

<Example 9>
A building material sample was produced in the same manner as in Example 7 except that the fragrance used in Example 3 was used.

<Comparative Example 7>
The building material sample was produced like Example 7 except having used the thing of the comparative example 1 as a fragrance | flavor.

<Comparative Example 8>
The building material sample was produced like Example 7 except having used the thing of the comparative example 2 as an aromatic.

<Comparative Example 9>
A building material sample was prepared in the same manner as in Example 7 except that the fragrance used was Comparative Example 3.

Said sensory evaluation was performed about Examples 4-9 and Comparative Examples 4-9.
[sensory evaluation]
A: Feels the odor of the fragrance ○: Feels the odor of the fragrance weakly △: Slightly feels the odor of the fragrance X: Feels almost no odor of the fragrance The results are shown in Table 2.

  From Table 2, it was confirmed that even when the fragrance was used as a building material, the fragrance using paraffin that melted at the summer temperature diffused at a predetermined temperature and released the fragrance from the board surface. Furthermore, it was confirmed that the use of two types of paraffin, which melts at summer temperature and paraffin that does not melt at summer temperature, improves the sustainability of fragrance.

Claims (6)

A fragrance comprising a first paraffin having a phase transition temperature of 25 to 40 ° C., a second paraffin having a phase transition temperature of 45 ° C. or more , and a fragrance component. The fragrance according to claim 1, wherein a phase transition temperature of the first paraffin is 30 to 40 ° C. The fragrance according to claim 1 or 2, wherein the phase transition temperature of the second paraffin is 45 to 120 ° C.   The fragrance according to any one of claims 1 to 3, wherein the fragrance component has at least one of antibacterial and antifungal properties.   An air-permeable face material and a non-breathable cover material disposed on the back surface side thereof are provided, and the fragrance according to any one of claims 1 to 4 is applied or impregnated on the back surface of the face material, and A building material which is housed in a space surrounded by a face material and the cover material.   A building material, comprising a fibrous face material impregnated with at least one of the front and back surfaces of the fragrance according to claim 1.