JP2013082223A - Water-containing wood chip and using way of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillow and the like causing little cold feeling when abutting on the skin by freezing or refrigerating natural water and the like stored in fibers or cells of wood chips and the like composing a pillow in a held state in the fibers and cells of the wood chips, and sufficiently usable by covering a circumference of the pillow with a towel even if causing cold feeling.SOLUTION: The frozen or refrigerated water-containing wood chips are formed by cutting down trees like Japanese cypress having aromaticity or thinned timber and processing into chips in a living tree state, or by adding water when the water content of the wood processed into chips is low or to dried wood chips so that water may be attained to a prescribed content. The chips are filled into a cover formed from air permeable nonwoven fabric or cloth as core materials, and frozen or refrigerated in a refrigerator.

Description

This invention is particularly useful when wood such as cypress thinned wood is cut into chips immediately after cutting (in the state of raw trees), or when the moisture content of the wood processed into chips is low, or in dried wood chips Relates to a water-containing wood chip which is intentionally added with moisture and packed into a core material such as a nonwoven fabric or cloth and then frozen or refrigerated in a refrigerator or heated in a heater.
The obtained frozen or refrigerated or warmed water-containing wood chip can be used for cooling or heating by applying it to an appropriate place on the human body, for example, the head or other parts, and again when the temperature rises. The present invention also provides a method for using hydrous wood chips that can be repeatedly used by freezing or refrigeration in a refrigerator or heating in a warmer.

It can be used to cool not only on the appropriate place of the human body, such as the head as a countermeasure against heat in the summer, but also on the head, armpit (lymph), and other parts when heated Most of the commodities that are made use the same plastic-based cooling gel that is directly enclosed in a plastic bag, either frozen or refrigerated.
In addition, it is also known that it can be used by being warmed in a warming machine and placed on the eyes.

On the other hand, an example in which wood chips are packaged and used as a pillow to be used by being applied to an appropriate place on the human body, such as the head or other parts, has been well known.
However, in the case of the pillow made by packing the wood chips, the actual situation is that if the cooling function is to be given to the pillow, the only way to use it is to overlap the cooling gel.

Nothing in particular.

However, in the case of using the cooling gel enclosed in the plastic bag directly as described above, it is too cold when it comes into contact with the skin, and it can be used even if it is covered with a towel or the like. There was a high possibility of not being.
Moreover, since it is hardened in the frozen state, it is very inconvenient.

This invention can be used to freeze natural moisture or the like taken in between cells such as wood chips constituting a pillow, etc., or between the fibers of wood chips or in cells. Or, even if it comes into contact with the skin by refrigeration, it will not be too cold, and even if it feels cold, it will try to provide a pillow etc. that can be fully used by simply covering the pillow etc. with a towel etc. Is.
Further, since the flexibility remains even in a frozen state, the present invention aims to provide a pillow that is easy to use and that can invite more deep sleep due to the fragrance of cypress and other wood.

In order to solve the above-mentioned problem, the water-containing wood chip of the present invention cuts cypress and other aromatic wood and thinned wood, and then processes them into chips in the state of raw trees, or processes them into chips. When the moisture content of wood is low or when dried wood chips are hydrated to a predetermined moisture content or moisture content, this is packed into a cover made of non-woven fabric or fabric with air permeability as a core material It is characterized by being frozen or refrigerated in a refrigerator or warmed in a heater.

The water-containing wood chip of the present invention is also characterized in that the water content or water content of the wood chip is adjusted by leaving the water chips until they no longer drop or by forced dehydration with a dehydrator.

The water-containing wood chip of the present invention is characterized in that the water content or water content of the wood chip is 140% to 360%, particularly 140% to 280%, based on the following calculation formula. .
Maximum moisture content = (weight with maximum water content-original weight) / original weight

In the water-containing wood chip of the present invention, the cover having the breathability is selected from a nonwoven fabric, a fabric, a plastic net, a breathable paper material having water resistance, or a laminate of these and a breathable plastic layer. It is also characterized by

The method of using the water-containing wood chip of the present invention is used to cool the head and other suitable human bodies, and when the temperature rises after thawing, it is refrigerated in the freezer again to dissipate heat. When the temperature is close to room temperature, it can be repeatedly used by heating again in the warmer.

According to the present invention, natural moisture or the like taken in between cells such as wood chips constituting a pillow or the like is frozen between the fibers of wood chips or in the cells. Even if it touches the skin by refrigeration or refrigeration, even if it feels cold, it can withstand use by simply covering the periphery of the pillow etc. with a towel etc., and in a frozen state However, since flexibility remains, it became possible to provide easy-to-use pillows and the like.
In addition, the aroma emitted by wood chips made of cypress and other woods can indirectly provide a healing effect by the aroma and pillows that can invite more deep sleep.
On the contrary, the water-containing wood chip of the present invention can be used after being warmed in a range or the like.
When using a PC etc. for a long time, it is possible to use both warm and cold, as well as providing an unprecedented healing effect to eliminate tired eyes, etc. Since it contains moisture, it is gentle on the skin when used on the eyes, and has the effect of moisturizing the skin when the air is dry.

Furthermore, the texture of the wood chip or the like can be adjusted by adjusting the water content or water content to an appropriate value and adjusting the initial set temperature.
Moreover, non-woven fabrics, fabrics, etc. are used that have a good texture on the surface, and sometimes they can be used to obtain a very soft and gentle cool feeling without having to wrap a towel, etc. The fragrance emitted by the wood chips can be passed through.

The frozen or refrigerated water-containing wood chips obtained by the present invention can be repeatedly frozen and used many times.
Moreover, when discarding, wood chips and covers are separated, and each wood chip can be used as fuel by solidification, etc., or can be reused as compost or civil engineering materials. It can be reused by putting it in circulation.

It is a top view which shows one Example of the water-containing wood chip | tip frozen or refrigerated of this invention. FIG. It is a top view which shows the other Example of the water-containing wood chip | tip frozen or refrigerated of this invention. FIG.

Embodiments of the frozen or refrigerated water-containing wood chip according to the present invention will be described below in detail with reference to the drawings.
1 and 2 show an embodiment of a frozen or refrigerated water-containing wood chip according to the present invention.
In the figure, reference numeral 11 denotes a cypress or other aromatic wood or thinned wood, which is processed into chips in the state of raw wood, or the water content or water content of the wood processed into chips is low. In other cases, the dried wood chips are water-containing wood chips that have been hydrated to have a predetermined water content or water content.
As a material for adding water, tap water, mineral water (mineral spring water), hot spring water and the like can be used.

The water-containing wood chip 11 is used after being packed as a core material in a cover 21 made of a non-woven fabric or cloth having air permeability and frozen in a refrigerator or refrigerated from 0 ° C to 3 ° C.
The surface immediately after taking out from the refrigerator is almost the same as the conventional gel-like one, but you can feel a slight elasticity. In other words, since the gel is liquid, the frozen surface is a uniform surface. On the other hand, the hydrated wood chip 11 has uneven surface. Therefore, when it is frozen at the same temperature and exposed to the outside air, the conventional gel-like material is slow to melt, whereas wood chips and the like are fast to melt.
However, in the water-containing wood chip 11, an air layer is formed when a part of the surface melts quickly, and just because the surface melts quickly does not shorten the time for holding at a low temperature compared to the gel-like one.
On the contrary, the air layer with the cold becomes thicker as time passes. This air layer slows down the heat load (or heat exchange). Moreover, the surface of this air layer is positioned as a condition in which the feeling of use when a human uses it in any part can be used very gently.
On the other hand, the conventional gel-like material is always subjected to heat load or heat exchange only on the surface. Therefore, since it is too cold, an air layer is formed by wrapping a towel or the like away from the surface, and the formation of this air layer has a clear difference in usability.
The time for holding at low temperature with the same weight (water only) is slightly inferior to wood chips, but it is in the range where there is almost no problem. Similarly, the low temperature holding time with the same weight (water only) can be secured more than the gel-like one by increasing the density by increasing the density of the water-containing wood in the bag in the case of wood waste. .
In contrast, the water-containing wood chip 11 of the present invention can be used after being warmed in a range or the like. In that case, it is desirable to use at about 38 ° C. to 43 ° C. although there are individual differences.
The breathable cover 21 can be selected from non-woven fabrics, fabrics, plastic nets, and breathable paper materials having water resistance.

The water-containing wood chip 11 is retained between the fibers of the wood chip, or between the fibers of the wood chip or the moisture of the moisture that has been incorporated into the cells, or between the fibers of the wood chip or the cells of the wood chip. It can be used as a water-containing wood chip 11 that is frozen by being frozen or cooled, or indirectly has a healing effect by aroma, a resting action by not being hard, and other effects.
As a result, when it comes close to the skin, there is an effect that the cold air is not directly felt, and the water that is frozen or cooled between the fibers of the wood chip or in the cells of the wood chip is the fiber of the wood chip. A cooling effect is generated between the wood chip and the outside surface of the wood chip.

Next, the texture of the water-containing wood chip 11 can be adjusted by adjusting the water content or water content to an appropriate value, adjusting the filling density in the bag, and adjusting the initial set temperature.
<Results of experiments for confirming the maximum moisture content of wood chips (shavings, nuka, etc.)>
1) Conditions for obtaining maximum water content a. The moisture content of the water-containing wood chip 11 is the weight-based moisture content.
b. Two types of cypress, cedar shavings, and shavings were tested.
c. The specific gravity, annual rings, and fiber composition of cypress, cedar wood to be used vary greatly depending on the part close to the root, on the contrary, the part at the end of the trunk, the part on the south side due to the growing environment, the part on the north side, etc. Ignore this. Also ignore the wood parts such as the core and side parts of the wood.
d. It also contains moisture that gets to the surface between the shavings and the nuka.
e. Ignore outside temperature, humidity, etc., and the experiment period is August.
f. The shavings and scraps constituting the water-containing wood chip 11 are not absolutely dried. The reason is that the use of the absolute dry value is mechanically and forcibly dried even though special components such as cellulose, hemicellulose and lignin contained in the wood are important elements of the water-containing wood chip 11. This is because special components such as fragrances are lost.
Therefore, after determining the maximum moisture content, the maximum moisture content is determined by subtracting the absolute moisture content (18% summer time, 13% winter time) during absolute natural drying, which has been indicated or verified in the literature.
Of course, the special components contained in the water-containing wood chip 11 should also be included in the moisture content during absolute natural drying (18% summer, 13% winter). Therefore, the maximum water content is calculated in consideration of this matter.

2) When 100 g of maximum moisture content shavings, etc. are immersed in water for 18 hours, most of them become heavier than water and precipitate. After that, when it is moved to the colander for 3 to 5 minutes, the water falls naturally and the water drops do not fall. This state = weight containing water to the maximum = maximum water content.
* Maximum moisture content = (weight with maximum water content-original weight) / original weight

3) Reason for obtaining the maximum moisture content and obtaining the ideal moisture content In the above state, the hydrated wood chip 11 is put into a permeable nonwoven fabric or cloth, frozen in the freezer for 8 to 12 hours, and taken out from the freezer.
When this is used as a cool product that comes into contact with the human body or the like, according to the water-containing wood chip 11 stored in a frozen nonwoven fabric or fabric, a very good cool feeling can be obtained.
In addition, even if the moisture or the like entering the hydrated wood chip 11 was dissolved, it did not leak out of the nonwoven fabric or the fabric, and the comfortable state was maintained. And even after thawing and the feeling of cooling is lost, the feeling of coolness can be enjoyed until the temperature rises to the outside air temperature or a temperature equivalent to the body temperature by the action of the heat of vaporization.
From this, the maximum moisture content is obtained, and the time during which the cool feeling and the cool feeling can be maintained for the longest time may be considered as the ideal moisture content.
However, the maximum moisture content becomes ticking when frozen, and the feeling of use is reduced to a state that approximates the ice mass. Of course, the temperature to freeze is also a problem, but it is desirable to freeze in an ideal moisture content state with the moisture content lowered appropriately. By doing so, the texture of the water-containing wood chip 11 can be appropriately felt and can be used more comfortably.

4) Experimental results Although the experimental results have considerable errors when applied to the conditions of 1) above, the experimental results were accurately traced this time, though simple as follows.
<When hydrated wood chips are cypress shavings>
Maximum water content 376% -18% = 358%
In the case of cypress shavings, the maximum moisture content is 116% to 216% in the core portion.
In the case of Japanese cypress, the maximum moisture content is greatly different between the core material portion and the sap material portion, and the sap material portion can contain twice or more water as compared with the core material portion. This is because the core material contains more volatile components (terpenes) than the center and is difficult to contain moisture. In other words, as the tree grows, more water is stored in the side portion, and as the tree grows, volatile components (terpenes) accumulate in the core portion.
Further, when the volatile components (terpenes) are eliminated, the water absorption is increased by that amount.
<When hydrated wood chips are cut from cypress>
Maximum water content 290% -18% = 272%
<When water-containing wood chips are cedar shavings>
Maximum moisture content 313% -18% = 295%
<When water-containing wood chips are cedar shavings>
Maximum water content 290% -18% = 272%

5) Examination result 1
The wood chip shaving Nuka has pulverized wood fibers, so that moisture cannot enter the fibers, and therefore the moisture content is low.
On the contrary, the wood chips shavings are firmly left with wood fibers, so that moisture is firmly held between the fibers.
Of course, in addition to the conditions in 1), the maximum moisture content is less than the above by taking the shape that makes use of the fiber state of the wood by cutting thickness, cutting shape, ultra-small square wood, pulverized fiber, and other wood processing methods. The above values are used in this experiment.
The above figures are below freezing (around -10 degrees) in a freezer (approx. 8 hours), frozen for an appropriate time (about 8 hours), taken out of the freezer and used as a refrigerated product, etc. . Moreover, it can replace with the maximum moisture content using simple vaporization heat.
6) Examination result 2
In addition, the retention time becomes shorter as the moisture content becomes lower than the maximum moisture content.
On the other hand, the lower the moisture content, the better the texture of the surface when taken out of the freezer. Of course, it depends on the shape and size of the wood chip shavings and scraps.

<Ideal moisture content>
The ideal moisture content in Example 1 is as follows.
A) Ideal moisture content as a product: 116% to 286% when wood chips are cypress chips.
Ideal moisture content as a product: 122% to 261% when wood chips are cypress-cut.
The water content is adjusted according to the conditions of use. By the way, the central part of the ice pillow is preferably about 280% to 320% using shavings, and the outer peripheral part surrounding it is preferably about 110% to 220% when shavings or shavings are used.
When using it as a heat removal mat, it is preferable to use a shaving nuka and about 280% to 320%.
Moreover, when putting it on eyes, it is preferable to use a scraped nuka and about 160% to 220%.
The maximum holding time for maintaining the ideal moisture content (140% to 360%, especially 140% to 280%) is as follows.
B) Hinoki shavings are about 4 hours.
Hinoki shavings are about 5 hours.

When wood chips are cypress shavings, even if the moisture content is high, the density of the chips is low and the gaps are large, and an air layer is included between them, creating a large number of cavities, increasing the heat load, Holding time is shortened.
Conversely, if the wood chips are cypress shavings, the density between them is high and the gap is small, there are few air layers between them, and conversely there is moisture on the surface between the nuka and the part also freezes, The density increases, the heat load becomes smaller, and the holding time becomes longer.
(1) It turned out that the weight of a test body will reduce 6 to 12% from before putting into a freezer, when the test body which included water was put into a freezer as it was, and about 8 hours-12 hours passed. This is because the air in the freezer is dry, and moisture evaporates from the surface of the test specimen (including the water contained in the cover) until it freezes, and the specific gravity decreases.
After that, if it is left in the freezer as it is, the specimen becomes lighter by about 0.011% to 0.032% every 24 hours even in a completely frozen state.
(2) In the above, the test specimen appropriately frozen at about −10 ° C. is taken out, and after the maximum holding time (4 hours to 5 hours) has elapsed, the weight at that time is measured. Then, it is temporarily heavier by about 0.013% to 0.036% than the weight when taken out from the freezer. This is thought to be because moisture in the atmosphere was adsorbed to the water-absorbing and moisture-permeable cover, shavings, and wood chips that make up Nuka because the thawing state started from the frozen state. Prior to this, the moisture vaporizes into the air as heat of vaporization after the maximum retention time has elapsed. Therefore, the weight gradually decreases from here. In this state, until the specimen or specimen moisture reaches the same level as the absolute temperature in the surrounding atmosphere, a cool feeling as general heat of vaporization can be obtained.

<About the cover>
In the first embodiment, the cover 21 can be selected from a non-woven fabric or fabric having air permeability and water permeability.
And even if it uses the cover 21 which consists of a nonwoven fabric, a fabric, etc. provided with air permeability and water permeability for the amount used below the maximum water content, there is almost no water leakage. The scent of the water-containing wood chip 11 made of shavings, shavings, etc. is also firmly present, and can be used comfortably when used as a cool product to be used in contact with the human body.
Incidentally, in an environment where the outside air temperature is 35 ° C. when the product is taken out from the freezer, the surface temperature of the cool product is 11 ° C. ± 0.5 ° C., and a comfortable feeling can be given to the user.
In Example 1, a very good result was obtained by using a nonwoven fabric (fleece formed by a spunbond method) having appropriate water permeability.
The cover 21 starts to absorb moisture from the moment when the water-containing wood chip 11 having an appropriate water content is put in the cover 21. Therefore, the moisture content of the water-containing wood chip 11 drops sharply.
Moreover, even if the cool product which put the water-containing wood chip | tip 11 in the cover 21 is immersed in water and it has a suitable moisture content, the nonwoven fabric, the fabric, etc. which comprise the cover 21 will be in the state containing moisture.
In any case, in reality, it is difficult to obtain a perfect and ideal moisture content. Therefore, it is desirable to obtain an ideal moisture content by various methods such as dehydrator (mechanical) or hand-squeezing. Moreover, you may use the raw material of the cover 21 which can be adjusted suitably.

As described above, in reality, it is difficult for a general consumer to have a proper moisture content. In other words, an ideal moisture content is created to prepare a comfortable use situation, and it is obtained by cooling in a freezer. However, it is difficult for general consumers to create an appropriate moisture content.
Of course, a cool product in which the hydrated wood chip 11 is put in the cover 21 is soaked in water, taken out in a state where air is removed, and dehydrated for about 40 seconds to 1 minute using a dehydrating function of a washing machine or the like. Thus, an appropriate water content can be obtained.
In addition, since it is impossible to squeeze in water and reduce the water content to an appropriate level by hand, place it in a basket, let it fall naturally, and put it in the refrigerator as an appropriate water content. May be.
In view of such circumstances, it is possible to provide the customer with the above time and effort as a service product for differentiation from other companies in the summer season, for example, in a business hotel, inn, etc., instead of a general end user. In addition, it can be used in hospitals, nursing homes, etc.

3 and 4 show another embodiment of the water-containing wood chip frozen or refrigerated according to the present invention.
In the figure, reference numeral 31 denotes a cypress or other aromatic wood or thinned timber, which is processed into chips in the state of raw wood, or the moisture content or moisture content of the wood processed into chips is small. In other cases, the dried wood chips are water-containing wood chips that have been hydrated to have a predetermined water content or water content.

The water-containing wood chip 31 is used after being packed as a core material in a cover 41 made of a non-woven fabric or cloth having air permeability and frozen in a refrigerator.
In the present embodiment, the air-permeable cover 41 is composed of an outer layer 41-1 made of non-woven fabric, fabric, plastic net, water-resistant air-permeable paper, and the like, and a plastic material having air permeability such as polyethylene film. Further, it has a laminated structure with the inner layer 41-2. This laminated structure is formed by bonding with an adhesive or heat fusion. The inner layer 41-2 made of a breathable plastic material such as polyethylene film does not allow water to pass therethrough, and has the property of passing fragrance such as cypress that constitutes the water-containing wood chip 31. Therefore, a very useful function that fragrance such as hinoki can be passed without leaking moisture can be exhibited.
In the figure, reference numeral 42 denotes an edge portion made only of the outer layer 41-1 formed on the outer edge of the inner layer 41-2. The hard inner layer 41-2 is exposed so that the user is not injured.

According to the cool product to which the method of using the frozen or refrigerated water-containing wood chips of the present invention is applied, it is considered suitable for use in cases where it is necessary to cool for a certain period of time due to heat generation such as illness.
In addition, it can be assumed that the use environment is the same as before even in the case of general adults and the like when it is difficult to sleep in the summer, and it is possible to obtain a comfortable comfort that has never been achieved.
For example, chilled pillows are preferred by elderly people such as nursing care facilities. At that time, when the water-containing wood chips are not completely frozen or have started to freeze (approximately 0 ° C to 3 ° C), the water-containing wood chips have a unique elasticity and the texture is soft and gentle. Familiar with the body part, you can get a comfortable comfort like never before.
Of course, since the set temperature of the water-containing wood chip in that case is higher than when it is frozen, the use time is shortened.
Conventional ice pillows and the like are kept at a constant temperature of approximately 0 ° C. or lower. The same is true for commercially available cool products, and even if the coldness is used in the state of being wrapped with a towel or the like, the coldness is still close to 0 ° C.

By the way, paulownia trees and the like are almost odorless, and therefore it is well known to put clothes such as chiffon.
Therefore, instead of hinoki and other aromatic wood and thinned wood, use paulownia chips, etc., and compatibility, for example, herbs and other trees (grass) crushed and blended as they are It can be used as aromatic wood or thinned wood. Of course, at that time, it is desirable to commercialize it with appropriate moisture (water content).
Of course, the wood chip includes crushed materials other than sawdust and canna waste. Moreover, if it is a plant which becomes chip shape other than wood, it can utilize similarly to a wood chip.
The points are summarized as follows.
1) Use a moisture content around the maximum moisture content.
2) When it comes out of the refrigerator, the internal air expands slightly with the change of atmospheric pressure in the process of heat exchange with the outside air. If this air is not treated, the fabric itself may be damaged. Therefore, a treatment is performed in which a hole is made in the fabric and the air inside is removed in a range where there is no problem. Alternatively, change the fabric to one with good ventilation.
3) On the contrary, this has the role of supplementing the air permeability of polyethylene film and the like, and the fragrance of internal wood ticks and the like is likely to come out.

The method of using the frozen or refrigerated water-containing wood chip according to the present invention can be used for cooling by placing it on the head or other appropriate human body, and when it is thawed and the temperature rises, it is frozen again in the freezer. By doing so, it can be used repeatedly any number of times.

The cooled water-containing wood chip and the method of using the cooled water-containing wood chip according to the present invention have the above-described configuration, and are applied to an appropriate place on the human body, for example, the head, the armpit, the eye, and other parts for cooling. Used for
Furthermore, since the product can be wrapped softly for pets or other animals, it can be appropriately used for various applications that require soft holding power and cooling action.
On the contrary, the water-containing wood chip of the present invention can be used after being warmed in a range or the like. In that case, it is desirable to use at about 38 ° C. to 43 ° C. although there are individual differences.

11 Water-containing wood chip 21 Cover 31 Water-containing wood chip 41 Cover 41-1 Outer layer 41-2 Inner layer 42 Border

2) When 100 g of maximum moisture content shavings, etc. are immersed in water for 18 hours, most of them become heavier than water and precipitate. After that, when it is moved to the colander , the water falls naturally in about 2 to 3 minutes , and the water drops do not fall. This state = weight containing water to the maximum = maximum water content.
* Maximum moisture content = (weight with maximum water content-original weight) / original weight

Claims (5)

After cutting cypress and other aromatic wood and thinned wood, it is processed into chips in the state of raw trees, or when the moisture content of wood processed into chips is low, or dried wood chips In addition, water is added to a predetermined moisture content, and this is stuffed as a core material into a cover made of non-woven fabric or cloth with air permeability, and then frozen or refrigerated in a refrigerator or heated in a heater. A water-containing wood chip characterized by that. 2. The water-containing wood chip according to claim 1, wherein the water content of the wood chip is adjusted by allowing the water chip to stand until no water drops are dropped or by forced dehydration by a dehydrator. 2. The water-containing wood chip according to claim 1, wherein the water content of the wood chip is 140% to 360%, particularly 140% to 280%, based on the following calculation formula.
Maximum moisture content = (weight with maximum water content-original weight) / original weight The breathable cover is selected from a fabric, a nonwoven fabric, a plastic net, a breathable paper material having water resistance, or a laminate of these and a breathable plastic layer. The water-containing wood chip according to 1. The water-containing wood chips are used to cool the head and other human body in place, and when the temperature rises after thawing, freeze it in the freezer again, and heat will dissipate to bring the temperature close to room temperature. Then, the method of using the water-containing wood chip is characterized in that it can be repeatedly used by heating again in the heating machine.

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