JP6095403B2 - pajamas - Google Patents

Description

  The present invention relates to a pajamas mainly worn at bedtime, in particular, a feeling of wearing is preferable, and it is possible to keep warm to the periphery (the tip and the back of the hand (back) and / or the foot and the back of the foot (back of the foot)). It can be related to pajamas. The pajamas referred to in the present invention are not limited to clothing worn at bedtime, but include all clothing that can be used as room wear.

In general, a person with inadequate blood circulation called so-called coldness often wears a warming zone called abdominal wrap to prevent abdominal pain, back pain and the like. This heat retaining zone is formed in a substantially cylindrical shape by a heat insulating cloth that can be expanded and contracted, and is in close contact with the abdomen and waist by shrinking of the heat insulating cloth, thereby keeping these portions warm.
By the way, such a warm zone has a problem that when it is worn over clothes (sleeping clothes, room clothes), the appearance is impaired, and the clothes are bumped as the hands are raised and lowered. For this reason, the warm zone is often worn so as to keep a desired part of the body warm inside the clothes.

However, even if the warm zone is worn from above or under the clothing, if the warm zone deviates from a desired position, the abdomen, waist and the like cannot be warmed.
Utility Model Registration No. 30663328 (Patent Document 1) is not limited to the design and the wearing method, and reliably prevents the inflow of outside air from the hem and waist openings which are the openings of the trousers, further enhances the heat retaining effect. The trousers excellent in the wearing function are disclosed. This trouser has an annular throttle hem at the hem and lip around the trouser lining, which is extended and sewn so that it can protrude from the trouser's outer hem. An annular heat-insulating belt is extended and sewn continuously so that it can be folded back inside the pants waist.

  According to this trouser, since the squeezing hem mouth part and the heat insulation belt made of the stretchable material are connected to the hem opening and the waist opening which are the opening parts of the trouser, respectively, an extremely high heat insulation effect can be obtained.

Utility Model Registration No. 3066328

However, since the trousers disclosed in Patent Document 1 focus on preventing the inflow of outside air from the hem and waist openings, which are openings of the trousers, and further enhancing the heat retaining effect. Even if trousers are applied to pajamas bottoms, there are the following problems.
The trousers disclosed in Patent Document 1 are often used in winter because they have a heat retaining effect, and in this case, the tops often wear outerwear with good heat retaining properties. In the case of pajamas, in many cases, tops and bottoms are sold as a set, and only the tops are not composed of high heat retaining properties. In other words, in the case of pajamas that are not tops with high heat retention such as outerwear, it is necessary to provide a heat retention zone with high heat retention, but generally the heat retention has a strong correlation with the thickness of the heat retention zone, In order to increase, the thickness of the heat insulating zone is increased. If the thickness of the heat retaining zone is increased in this manner, the wear pressure of the wearer's waist increases, and a preferable wearing feeling, particularly a relaxing feeling at bedtime, cannot be realized. Furthermore, since the trousers disclosed in Patent Document 1 separately configure the waistband portion and the heat retaining zone, the waist portion of the wearer is strongly tightened.

In addition to this, there is a pajamas with improved heat retention, but in many cases, the effect of heat insulation is expressed by thickening the body cloth or overlapping the cloth. If the fabric is made thicker or the fabrics are stacked in this way, the pajamas themselves become heavier or the pajamas feel worse (becomes awkward, difficult to move, etc.), and the comfort is impaired. In addition, the upper body trunk (tops effect) and legs (bottoms effect) can be kept warm by increasing the heat retention of the body fabric, but in many cases it is not possible to keep warm to the periphery (hands and feet). In addition, there are blood circulation insufficiency people who have troubles that cannot sleep unless they wear socks, leg warmers, etc. to reduce peripheral cooling. Such troubles that impair comfort and cannot fall asleep cannot be solved by the trousers disclosed in Patent Document 1.

  The present invention has been developed in view of such problems, and an object thereof is to provide a pajamas that can keep the hands and the tips of the feet warm, and has a good wearing feeling.

In order to achieve the above object, the pajamas according to the present invention employ the following technical means.
That is, the pajamas according to the present invention are connected to the upper edge of the waist part, have a length that covers at least the abdomen and the waist, and are formed of a stretchable fabric, and a hem of both legs. It includes bottoms characterized in that it has a cylindrical ankle heat retaining zone that is connected to the end and has a length that covers at least the heel and is made of stretchable fabric.

Preferably, the bottoms may be configured not to include a waist rubber.
More preferably, the ankle heat retention zone can be configured to be provided with an elastic member along the longitudinal direction of the cylindrical shape so as to be sheared.
More preferably, the stretchable member can be configured to be a rubber member.

More preferably, the fabric thickness of the abdomen warm zone and / or the ankle warm zone can be configured to be 0.9 mm or more.
More preferably, the fabric thickness of the abdomen warm zone and / or the ankle warm zone can be configured to be 3 mm or less.
More preferably, the fabric of the abdomen warm zone and / or the ankle warm zone can be configured to be a knitted fabric obtained by knitting polyurethane bare yarn.

More preferably, the fiber knitted with the polyurethane bare yarn can be configured to be a natural fiber and / or a synthetic fiber.
More preferably, the pajamas equipped with the abdominal warm zone are moved to a room temperature of 22 ° C. after 20 minutes and 20 minutes passed after the pajamas not equipped with the abdominal warm zone. It can be configured such that the skin temperature on the back of the back hand is higher by 1 ± 0.2 ° C. or more.

More preferably, the pajamas provided with the abdomen warm zone and the ankle warm zone are compared with the pajamas not provided with the abdomen warm zone and the ankle warm zone after 15 minutes have passed in a room temperature 25 ° C environment. It can be configured such that the skin temperature of the back of the foot after moving to a 20 ° C. environment for 15 minutes is higher by 1 ± 0.3 ° C. or more.
More preferably, it has one of the above-mentioned bottoms and a cylindrical wrist warming belt that is connected to the long sleeve ends of both hands, has a length that covers at least the wrist, and is made of stretchable fabric. It can be constituted so that it may be the pajamas comprised with the tops characterized by.

  More preferably, it can be constructed so as to have a cylindrical heat insulating belt that is connected to the lower end of the body of the top and is made of stretchable fabric.

  ADVANTAGE OF THE INVENTION According to this invention, the pajamas which can heat the periphery of a hand tip or a foot tip and have a preferable feeling of wear can be provided.

1 is a schematic front view of a pajamas according to an embodiment of the present invention. It is a side view for demonstrating the wearing condition of the bottoms of the pajamas of FIG. It is a figure (the 1) which shows the material | dough sample of an abdomen warm zone and an ankle warm zone. It is a figure (the 2) which shows the material | dough sample of an abdomen warm zone and an ankle warm zone. It is a figure (the 1) which shows the relationship between material thickness and claw value. It is a figure which shows correlation with material thickness and a claw value. It is a figure (the 2) which shows the relationship between material thickness and claw value. It is a figure for demonstrating the measurement timing in a 1st evaluation test (skin temperature change). In the figure (the 1) which shows the amount of skin temperature change of the (A) abdomen, (B) back of the hand, and (C) the back of the foot, which is the result of the first evaluation test (change in skin temperature), and 0 before wearing is there. In the figure (the 2) which shows the amount of skin temperature change of the (A) abdomen, (B) back of the hand, and (C) the back of the foot, which is the result of the first evaluation test (change in skin temperature). is there. It is a figure which shows the thermography (heat distribution map) of a limb which is a result of a 1st evaluation test (skin temperature change). It is a figure for demonstrating the measurement timing in a 2nd evaluation test (heart rate variability). It is a figure (the 1) which shows the result of a 2nd evaluation test (heart rate variability). It is FIG. (The 2) which shows the result of a 2nd evaluation test (heart rate variability). It is FIG. (The 3) which shows the result of a 2nd evaluation test (heart rate variability). It is FIG. (The 4) which shows the result of a 2nd evaluation test (heart rate variability). It is a figure for demonstrating the measurement timing in a 3rd evaluation test (skin temperature change). It is a figure which shows the subjective evaluation which is a result of a 3rd evaluation test (skin temperature change). In the figure (the 1) which shows the amount of skin temperature change of (A) abdomen, (B) hand back part, (C) foot back part which is the result of the 3rd evaluation test (skin temperature change) before wearing 0 is there. In the figure (the 2) which shows the amount of skin temperature change of the (A) abdomen, (B) hand back part, and (C) foot dorsal part which is the result of the 3rd evaluation test (skin temperature change) before wearing. is there.

  Hereinafter, as an embodiment of the present invention, a pajamas 100 will be described in detail with reference to the drawings. In the following description, although the pajamas 100 combining upper garments (tops) and lower garments (bottoms, pants, pants) will be described, pajamas only with lower garments are not excluded from the present invention. The pajamas 100 are not worn only at bedtime, but may be worn as room clothes.

[Overall configuration of pajamas]
The overall configuration of the pajamas 100 according to the present embodiment will be described. FIG. 1 shows a schematic front view of the pajamas 100, and FIG. 2 shows a side view for explaining a wearing state of the bottoms 10 of the pajamas 100.
The pajamas 100 are composed of a bottoms 10 and a tops 20, and in particular, even when the bottoms 10 are provided with a heat retaining zone that can sufficiently warm the distal ends of the hands and feet, the pajamas 100 have a feature that a feeling of wearing is preferable.

The bottoms 10 has a form similar to that of ordinary pajamas bottoms, but is greatly different in that it includes an abdomen warm zone 11 and an ankle warm zone 13.
The abdomen warm zone 11 is connected to the upper edge of the waist and has a length that covers at least the abdomen and the waist. The ankle portion heat insulation zone 13 is connected to the hem ends of both foot portions 12 and has a length that covers at least the heel. The abdomen warm zone 11 and the ankle warm zone 13 are made of stretchable and warm fabrics, and each has a substantially cylindrical shape although the diameters thereof are different. That is, regarding the external shape excluding the thickness, the abdomen warm zone 11 has a so-called belly-wrap shape, and the ankle warm zone 13 has a shape such as a so-called leg warmer. In addition, this bottoms 10 does not include a waist rubber because of the abdomen warm zone 11 having elasticity.

The ankle part heat insulation zone 13 is provided with elastic members 14 (rubber cords, flat rubber, etc.) on both sides along the longitudinal direction of the cylindrical shape, and is sheared. For this reason, when the ankle part heat insulating zone 13 is extended, it is possible to cover not only the heel but also the middle part of the back of the foot (instep) as shown in FIG.
The tops 20 may have the same form as the tops of ordinary pajamas, and the body 21 may be provided with a heel part 22 and long sleeves 23. Therefore, it is preferable. The wrist warming zone 24 is connected to the ends of the long sleeves 23 of both hands, and has a length that covers at least the wrist. In addition, the collar part 22 may not be present, and it may be a pull-over instead of a front opening.

  Moreover, the tops 20 may be connected to the lower end of the body 21 and may have a cylindrical body warming zone. The wrist warm zone 24 and the body warm zone are made of stretchable and warm fabric (similar to the abdomen warm zone 11 and the ankle warm zone 13), and the diameters thereof are different. It has a substantially cylindrical shape. In addition, when the top is a front opening, the body warming zone has a substantially cylindrical shape cut on the abdomen side corresponding to the front opening.

The abdomen warm zone 11, the ankle warm zone 13, the wrist warm zone 24, and the body warm zone may be the same fabric (knitting, thickness, etc.) or different fabrics. A belt | band | zone is equipped with the elasticity and heat retention which are demonstrated below.
[Insulation zone]
In the following, the warming zone will be described, but it is assumed that at least the abdomen warming zone 11 and the ankle warming zone 13 are made of the same fabric. And the cloth (knitted fabric) which comprises these abdomen heat insulation belt | band | zone 11 and an ankle part heat insulation belt | band | zone 13 is demonstrated. However, the following description can also be applied to the wrist warm zone 24 and the body warm zone, which are other warm zones.

  The knitted fabric of the abdomen warm zone 11 and the ankle warm zone 13 is a knitted fabric such as bare smooth, bare mill, and bare tenter made by knitting natural fibers and / or synthetic fibers with polyurethane bare yarn, and has elasticity and thermal insulation. Have sex. As will be described later, the natural fibers and synthetic fibers to be knitted are not particularly limited, and the thickness of the fabric is more important than the fabric mixing ratio (composition) from the viewpoint of heat retention and comfort. Become.

  And the thickness of this knitted fabric is 0.9 mm or more in order to ensure sufficient heat retaining properties (heat retaining properties that can also keep the hands and the tip of the foot, which will be described later), and ensure good comfort. Therefore, it is preferably 3 mm or less. When the thickness of the knitted fabric exceeds 3 mm, there are problems such as feeling loose at bedtime. The numerical value range of the thickness includes a measurement error in a range that is normally conceivable because the measurement target is a knitted fabric having flexibility and elasticity.

In addition, the knitted fabric used for these abdomen warm zone 11 and ankle warm zone 13 is knitted with bare milling, the hem fits neatly to the body line with a cut-off specification that is hard to crack on the outer, and the thickness is 1 mm or less It is hard to swell and includes materials with high heat retention.
[Physical properties of thermal zone]
As described above, the heat retaining zone is a knitted fabric such as bare smooth obtained by knitting natural fibers and / or synthetic fibers with polyurethane bare yarn, and preferably has a thickness of about 0.9 mm to about 3 mm. The process concluded in this way will be described particularly from the viewpoint of heat retention in the peripheral part of the body.

  The present applicant prepared seven types of sample fabrics (knitted fabrics) of Sample (1) to Sample (7) shown in FIGS. These samples are fabrics that are used for stomach wrap and have heat retention and stretchability. Their claw values (clo values) and thicknesses as thermal resistance values are as shown in FIG. 3, and the mixing ratio is as shown in FIG. In addition, about the sample (1), the sample (4), and the sample (7), the case where it is only 1 sheet and the case where it overlaps with 2 sheets were measured. Also, as shown in FIG. 3, the claw value used to determine whether a sample is necessary is multiplied by the fabric thickness. In addition, Examples 1 to 4 in an evaluation test to be described later are appended to FIGS. 3 and 4.

First, the relationship between fabric thickness and claw value was examined. FIG. 5 is a diagram showing the relationship between the fabric thickness and the claw value, FIG. 6 is a diagram showing the correlation between the fabric thickness and the claw value created based on FIG. 5, and FIG. The figure which shows the relationship between the considered fabric thickness and claw value is shown, respectively.
When FIG. 5 showing the relationship between the fabric thickness and the claw value shown in the order of the sample numbers in FIG. 3 is rewritten to FIG. 6 showing the correlation between the fabric thickness and the claw value, the claw value has a strong correlation with the fabric thickness. It became clear. Furthermore, as shown in FIG. 7, the kind of dough mixture ratio and the claw value have little relation. From these facts, the claw value greatly depends on the thickness of the dough and does not depend on the mixing ratio. Therefore, as a result of regressing the correlation of FIG.
Claw value = 0.10 × material thickness−0.04 Formula (1)
It became clear that.

[First evaluation test (change in skin temperature)]
As described above, after analyzing seven sample fabrics and clarifying the relationship between the claw value, which is an important index of heat retention, and the fabric thickness, which is an important indicator of comfort, first, the abdomen, waist and abdomen Changes in the skin temperature when the temperature was maintained in the heat retention zone 11 (particularly, changes in the skin temperature of the back of the hand, which is the peripheral portion), were evaluated.

  The sample which performed this 1st evaluation test is demonstrated. The pajamas 100 shown in FIGS. 3 and 4 using one sample (1) for the abdomen warm zone 11 are taken as Example 1, and the pajamas 100 using one sample (7) for the abdomen warm zone 11 are shown as examples. 2, the pajamas 100 using the sample (6) in the abdomen warm zone 11 as Example 3, the pajamas without the abdomen warm zone 11 as a comparison target (unweared), and the measurement environment shown in FIG. The skin temperature of each part was measured.

In FIG. 9, as a result of the first evaluation test (change in skin temperature), (A) the abdomen, (B) the back of the hand (back), and (C) the back of the foot (instep) as the result of wearing. The amount of skin temperature change is shown.
From FIG. 9A, the following is considered for the skin temperature of the abdomen.
・ Changes in skin temperature under the environment of 28 ℃
In all examples, the skin temperature rises, and the difference of about 0.7 ° C. with respect to the comparative example (not worn) after 15 minutes. There is no difference in rising temperature. Skin temperature change under 22 ℃ environment is
At the end, Example 3 has a difference of about 0.8 ° C., and Example 1 and Example 2 have a difference of about 0.5 ° C. with respect to the comparative example (not worn). Regarding the skin temperature of the back of the hand, the following is considered.
・ Changes in skin temperature under the environment of 28 ℃
-The increase in skin temperature of Example 3 is significant, and there is no significant difference between Example 1, Example 2 and Comparative Example (not worn).-Skin temperature change in a 22 ° C environment is
At the end, Example 3 has a difference of about 1.2 ° C., Example 2 has a difference of about 1.0 ° C., and Example 1 has a difference of about 0.8 ° C. with respect to the comparative example (not worn). Difference From FIG. 9 (C), the following is considered for the skin temperature of the back of the foot.
・ Changes in skin temperature under the environment of 28 ℃
・ ・ Although there is almost no difference between Examples 1 to 3 and Comparative Example (not worn), the skin temperature of Example 3 is slightly increased. ・ Skin temperature change in a 22 ° C. environment is
At the end, Example 2 has a difference of about 0.8 ° C., and Example 1 and Example 3 have a difference of about 0.3 ° C. with respect to the comparative example (not worn). It summarizes and shows. In the first evaluation test, attention was paid to the skin temperature change in the back of the hand shown in FIG. As shown in FIG. 10B, at the end of the 22 ° C. environment, Example 3 has a difference of about 1.2 ° C. and Example 2 has about 1.0 ° C. relative to the comparative example (not worn). It is clear that Example 1 produces a difference of about 0.8 ° C., and by keeping the abdomen and waist in the abdomen warm zone 11, at least 0.8 ° C. (Example 1) An increase in skin temperature could be confirmed.

That is, after the pajamas 100 with the abdominal warm zone 11 move to the room temperature 22 ° C. after 20 minutes, the pajamas without the abdominal warm zone 11 move after 20 minutes. It was revealed that the skin temperature of the back of the hand was 1 ± 0.2 ° C. or higher (0.8 ° C. to 1.2 ° C. higher).
Summarizing this first evaluation test, between Example 1 and Example 3 compared to the comparative example, the increase and decrease in skin temperature on the back of the hand is slightly varied, but the larger the claw value, the greater The effect of heat retention also tended to be large.

From the time transition of the skin temperature of the back of the hand and the temperature difference, it was estimated that the heat retaining effect could be exhibited in Example 1. That is, it is said that the minimum difference that allows temperature identification based on the sensation is approximately 1 ° C. If there was a difference of about 1 ° C. in skin temperature (0.8 ° C. in Example 1), it was considered that the periphery could be felt warm. And from the physical properties of the above-described formula (1) and / or Example 1, if the fabric thickness is 0.9 mm or more, it is possible to feel that the periphery (here, the back of the hand) is kept warm. I was able to guess it was effective.

For reference, FIG. 11 shows a limb thermography (heat distribution diagram), which is a result of the first evaluation test (skin temperature change). Comparing the comparative example (not worn) for 20 minutes at 22 ° C. in FIG. 11 with Examples 1 to 3, it can be seen that the skin temperature at the tip of the hand is lower in temperature in the comparative example than in the example.
[Second Evaluation Test (Heart Rate Variability)]
Next, heart rate variability when warmed in the abdomen, waist, and abdomen warm zone 11 was evaluated. A sample subjected to the second evaluation test will be described. The pajamas 100 shown in FIG. 3 and FIG. 4 using the sample (5) in the abdomen warm zone 11 are shown in FIG. 12, and the pajamas without the abdomen warm zone 11 are shown in FIG. The electrocardiogram of the subject was measured at the timing indicated by the subjective evaluation in the measurement environment. In addition, without breathing control, one sample per day was taken during the measurement with the eyes closed.

As a result of this second evaluation test (heart rate variability), FIG. 13 shows a RR interval with a higher parasympathetic nerve activity as a larger value, and FIG. 14 shows a CV-RR interval with a higher parasympathetic nerve activity as shown in FIG. FIG. 15 shows the HF component having a higher parasympathetic nerve activity when the value is larger, and FIG. 16 shows the LF / HF component having a higher parasympathetic activity when the value is smaller.
From FIG. 13, it is considered that the RR interval is larger in Example 4 than in the comparative example, and the parasympathetic nerve activity is increased. In particular, there is a statistically significant difference between the RR interval shown in FIG. 13A = 1-3 min and the RR interval = 3-5 min shown in FIG. 13B, and it can be said that there is an effect of keeping the abdomen and waist warm. . In addition, since it can be said that the effect of RR interval = 3-5 min appears more, it can be estimated that the longer the time, the more heat can be stored and the heat can be maintained.

From FIG. 14, although CV-RR has a numerical value smaller in Example 4 than in Comparative Example, no statistically significant difference is observed. Both are within normal values for healthy subjects. CV-RR is an evaluation value that is often used for disease evaluation (when the value is too low, there is a suspicion of nervous system disease).
15 and 16, for HF component and LF / HF, the value of HF component tends to be larger in Example 4 than in Comparative Example (however, there is a statistically significant difference due to the large dispersion). No significant difference was observed in LF / HF due to the large dispersion, but Example 4 tended to have a lower numerical value than Comparative Example.

When this second evaluation test is summarized, based on the measurement result of Example 4 compared with the comparative example, the thermal stress tends to be reduced by keeping the abdomen and the waist by the abdomen warm zone 11. In particular, it can be said that there is a significant statistical difference in the RR interval, which is effective.
[Third evaluation test (change in skin temperature)]
In addition to the first evaluation test described above, changes in skin temperature (especially in the peripheral region) when the abdomen, the lumbar region, and the abdomen warm zone 11 are warmed and the ankle including the ankle is warmed at the ankle warm zone 13 Changes in skin temperature on the back of the hand and on the back of the foot) were evaluated.

In this third evaluation test, the abdomen warm zone 11 and the ankle were used in Example 5 with the pajamas 100 including the abdomen warm zone 11 and the ankle warm zone 13 made of a bare smooth knitted fabric having a claw value of about 0.2. The skin temperature of each part of the subject was measured in the measurement environment shown in FIG.
FIG. 18 shows (A) subjective evaluation 15 minutes after wearing at 25 ° C. and (B) subjective evaluation 15 minutes after wearing at 20 ° C. as a result of this third evaluation test (skin temperature change). In addition, 5 is “very warm”, 4 is “somewhat warm”, 3 is “cannot be said”, 2 is “somewhat cold”, and 1 is “very cold”.

From FIG. 18 (A) and FIG. 18 (B), it is felt that Example 5 is warmer than the comparative example (there is no heat retention zone) at any time point.
In FIG. 19, as a result of the third evaluation test (skin temperature change), (A) the abdomen, (B) the back of the hand (back), and (C) the back of the foot (back) are set as 0 before wearing. The amount of skin temperature change is shown.
From FIG. 19 (A), regarding the skin temperature of the abdomen, the change in the skin temperature under the environment of 20 ° C. is about 0.2 ° C. in Example 5 compared to the comparative example (no heat retention zone) at the end point. It is considered that there is a difference.

From FIG. 19 (B), regarding the skin temperature of the back of the hand, the skin temperature change under the environment of 20 ° C. is about 0.4 ° C. at the end of Example 5 compared to the comparative example (no heat retention zone). It is considered that this is the difference.
From FIG. 19 (C), regarding the skin temperature of the foot dorsal part, the change in the skin temperature under the environment of 20 ° C. is about 0.7 ° C. in Example 5 as compared with the comparative example (no heat retention zone) at the end time. It is considered that this is the difference.

  These consideration results are summarized in FIG. In the third evaluation test, attention was paid to the skin temperature change in the foot back as shown in FIG. As shown in FIG. 20 (C), at the end of the 20 ° C. environment, it becomes clear that Example 5 produces a difference of about 0.7 ° C. relative to the comparative example (no heat retaining zone). By keeping the ankle including the heel in the thermal insulation zone 13, it was possible to confirm an increase in skin temperature at the back of the foot at least 0.7 ° C. (Example 5). Here, in the first evaluation test, in the case where the abdomen, the lumbar region, and the abdomen warm zone 11 are kept warm, and the ankle including the heel is not kept warm in the ankle warm zone 13, a remarkable warming effect is applied to the back of the foot. Since it was not recognized, it can be considered that the heat retention effect of the foot back part is mainly expressed by the ankle heat retention zone 13.

That is, the pajamas 100 provided with the ankle warmth 13 move to the room temperature 20 ° C after 15 minutes in the room temperature 25 ° C, and 15 minutes passed from the pajamas without the ankle warmth 13. It was revealed that the skin temperature on the back of the foot after the test was 1 ± 0.3 ° C. or higher.
From the time transition and temperature difference of the skin temperature of the back of the foot, it was estimated that the heat retaining effect could be exhibited in Example 5. That is, it is said that the minimum difference that allows temperature identification based on the sensation is approximately 1 ° C. If there was a difference of about 1 ° C. in skin temperature (0.7 ° C. in Example 5), it was considered that the periphery could be felt warm. And since the claw value which is the physical property of the above-described formula (1) and Example 5 is 0.2, if the fabric thickness is 2.4 mm or more, such a periphery (here, the back of the foot) is Since it can be presumed that there is a heat-retaining effect that allows the user to feel that the material is kept warm, the fabric thickness is particularly preferably 2.4 mm or more and 3 mm or less.

[Effects of the pajamas according to the embodiment]
As described above, according to the pajamas according to the present embodiment, the fabric thickness of the warm zone does not exceed 3 mm, and there is no waist belt, so that the comfort is not impaired, the abdomen warm zone and / or the ankle. With the thermal insulation zone, it is possible to realize the effect of being able to fall asleep quickly because the thermal insulation can be performed to such an extent that the peripheral hand back and / or foot back can be felt.

Here, the thickness derived from the first evaluation test to the third evaluation test is required to be about 0.9 mm or more from the viewpoint that the thickness of the heat-insulating zone keeps the periphery of the limbs warm. 3 mm or less) is applied to the abdomen warm zone 11 and the ankle warm zone 13 (and the wrist warm zone 24 and the body warm zone).
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  INDUSTRIAL APPLICABILITY The present invention is suitable for pajamas that are worn at bedtime or worn as room clothes, and is particularly suitable for pajamas that can keep the tips of the hands and toes warm and that is comfortable to wear.

10 Bottoms (Pants, Pants, Underwear)
11 Abdomen warm zone 12 Leg 13 Ankle warm zone 14 Foot rubber 20 Tops (upper)
21 Body 22 Buttocks 23 Long Sleeve 24 Warm Wrist 100 Pajama

Claims (8)

Cylindrical abdomen warmth belt that is connected to the upper end edge of the waist part, has a length that covers at least the abdomen and waist, and is made of stretchable fabric,
Provided continuously to the skirt end of the legs, it possesses at least ankle with a length that covers the ankle portion warmth band cylindrical made of a fabric having stretchability,
In the ankle heat retention zone, a stretchable member separate from the fabric is provided along the longitudinal direction of the cylindrical shape,
The ankle warmth is a first mode in which the elastic member is extended and the heel is covered by the ankle warmth and the heel is not covered by the ankle warmth without extending the elastic member. The pajamas including the bottoms are configured to be switchable by the elastic member . 2. The pajamas according to claim 1, wherein the first aspect covers the toes without covering the toes by the ankle heat retention zone. The pajamas according to claim 1 or 2, wherein the bottoms are not provided with a holding means for holding the second aspect other than the stretchable member. The pajamas according to any one of claims 1 to 3, wherein the bottoms do not include a waist rubber. The ankle insulation zone, pajamas according to any one of claims 1 to 4, characterized in that it is processed Yaringu. The pajamas according to any one of claims 1 to 5 , wherein a fabric thickness of the abdomen warm zone and / or the ankle warm zone is 0.9 mm or more. The pajamas according to any one of claims 1 to 6 , wherein a fabric thickness of the abdomen warm zone and / or the ankle warm zone is 3 mm or less. The pajamas according to any one of claims 1 to 7 , wherein a fabric of the abdomen warm zone and / or the ankle warm zone is a knitted fabric obtained by knitting polyurethane bare yarn.