JP2007301006A - Pillow cover material and pillow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillow cover material which is excellent in a holding feeling and provides an improved heat accumulating feeling and improved stuffy feeling centering on the neck part. <P>SOLUTION: The pillow cover material comprises a solid knit fabric comprising the knitted fabric of two front and back layers and linking thread linking the knitted fabric of two layers. When the number of the linking thread in the area of 2.54 cm square (6.45 cm<SP>2</SP>) of the solid knit fabric is defined as N(lines/6.45 cm<SP>2</SP>), the dtex of the linking thread is defined as T(g/1×10<SP>6</SP>cm) and the density of the linking thread is defined as ρ<SB>0</SB>(g/cm<SP>3</SP>), the total cross sectional area (N×T/1×10<SP>6</SP>ρ<SB>0</SB>) of the linking thread in the area of 2.54 cm square (6.45 cm<SP>2</SP>) of the solid knit fabric is 0.07 to 0.18 cm<SP>2</SP>. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a pillow cover material that has an excellent hold feeling and has improved the heat storage feeling and stuffiness of the neck.

Pillows are said to be optimal pillows that gently support the neck and have a so-called hold feeling that naturally catches the roundness of the back of the head, and are less likely to feel heat accumulation and stuffiness around the neck. Pillows with excellent hold feeling are preferred to have pillows that gently sunk the head and wrap the roundness of the back of the head, such as low-resilience urethane, but such pillows seem to have been wrapped in the back of the head and neck Therefore, it feels heat storage and stuffiness around the neck.
On the other hand, in order to improve the feeling of heat accumulation and stuffiness centering on the neck, a method of forming an air layer capable of releasing and releasing moisture between the back of the head and the neck and the pillow is considered. When formed, the feeling of holding is impaired, so it is difficult to satisfy both.
Conventionally, for example, as disclosed in Patent Document 1, it has been known to use a three-dimensional knitted fabric composed of a front and back two-layer knitted fabric and a connecting yarn that connects the two-layer knitted fabric as a pillow cover material. Its purpose is simply to eliminate stuffiness, and there is no description or even suggestion of aiming at having an excellent hold feeling.

JP 2005-152480 A

An object of the present invention is to provide a pillow cover material that is excellent in a hold feeling and has improved heat storage feeling and stuffiness with a focus on the neck, and a pillow made of the pillow cover material.

As a result of repeating detailed studies in order to solve the above problems, the present inventor has found that the above problems have a large correlation with the total cross-sectional area of the connecting yarn of the three-dimensional knitted fabric, and have made the present invention. .
That is, the present invention is as follows.
(1) A pillow cover material composed of a three-dimensional knitted fabric composed of two layers of front and back knitted fabrics and connecting yarns that connect the two layers of knitted fabric, and has a solid knitted fabric of 2.54 cm square (6.45 cm ^2). ) Is the number of connecting yarns in the area of N (pieces / 6.45 cm ² ), and the dtex of the connecting yarns is T (g / 1 × 10 ^6).
cm), when the density of the connecting yarn is ρ ₀ (g / cm ³ ), the solid knitted fabric is 2.54 cm square (6.
The total cross-sectional area (N · T / 1 × 10 ⁶ · ρ ₀ ) of the connecting yarn in the area of 45 cm ² ) is 0.07.
A pillow cover material characterized by being -0.18 cm ² .
(2) The pillow cover material according to (1) above, wherein the connecting yarn of the three-dimensional knitted fabric is composed of a monofilament yarn.
(3) The thickness of the three-dimensional knitted fabric is 3 to 30 mm, (1) or (2) above
Pillow cover material as described in.
(4) A pillow composed of the pillow cover material according to (1) above.

According to the present invention, it is possible to provide a pillow cover material that has an excellent hold feeling and has improved heat storage feeling and stuffiness feeling mainly in the neck.

The present invention will be specifically described below.
As a pillow material to be combined with the pillow cover material of the present invention, conventionally known pillow materials, for example, various urethane materials including low-resilience urethane foam, cotton such as polyester fiber, synthetic synthetic fibers,
So-called synthetic polymer materials such as plastic hollow and solid pipe materials, buckwheat,
Examples include natural materials such as camel hair, feathers, and cotton, as well as combinations of one or more of these, but in the present invention, combinations with so-called synthetic polymer materials that are inferior in heat dissipation (easily stuffy) compared to natural materials In particular, various urethane materials including low-resilience urethane foam are the most useful and effective combinations because of their poor heat dissipation. In addition, the combination of the pillow material using part or all of the urethane material is rich in the hold feeling as compared with the other pillow materials, and this combination is an optimal combination in the present invention.
Further, the form of the pillow cover material of the present invention may be a form covering the whole pillow material, a form covering only the upper surface and the side surface where the head abuts except the bottom surface of the pillow material, and further covering the entire upper surface or the head. The pillow cover of the present invention may be laminated only on the part where the part comes into contact and, if necessary, covered with a commercially available pillow cover material such as cotton from the top. A material may be used.
In addition, you may combine the pillow cover material of this invention and a commercially available pillow cover material within the range which does not impair the objective of this invention.

The feature of the three-dimensional knitted fabric used in the present invention is that a three-dimensional knitted fabric in which the total cross-sectional area of the connecting yarn is within a specific range is used as the pillow cover material.
That is, the number of connecting yarns in an area of 2.54 cm square (6.45 cm ² ) of a three-dimensional knitted fabric is represented by N
(This /6.45cm ^2), the dtex of the connecting yarn ^{T (g / 1 × 10 6} cm), when the density of the connecting yarn was ^{_{ρ 0 (g / cm 3)}} , the area of the three-dimensional knit fabric 6.45 cm ² should the total cross-sectional area of the connecting yarn present in (N · T / 1 × 10 6 · ρ 0) is 0.07~0.18cm ^2, preferably 0.07~0.17cm ^2, particularly preferably Is 0.08 to 0.15 cm ² . By setting the total cross-sectional area of the connecting yarn within this range, a pillow with an excellent holding feeling and a feeling of heat storage and stuffiness centered on the neck can be obtained.
The connecting yarns may be looped stitches formed on the front and back knitted fabrics, or may have a structure in which they are hooked on the front and back knitted fabrics, but at least two connecting yarns reverse the knitted fabrics on the front and back sides. In order to improve the form stability of the three-dimensional knitted fabric, it is preferable to incline in the direction and connect it in a cross shape (X shape) or a truss shape.

The present invention will be described in further detail regarding preferable requirements.
First, the total cover factor (TCF) of the knitted fabric on the surface of the three-dimensional knitted fabric is 750 to 1250, preferably 800 to 1200, more preferably 850 to 1150, and particularly preferably 950.
When it is ˜1100, the touch is good and the pillow is more comfortable.
Here, the total cover factor (TCF) is calculated by the following equation.
Total Cover Factor (TCF) = Course Cover Factor (CCF) + Wail Cover Factor (WCF)
However, course cover factor (CCF) = (number of courses; book / 2.54 cm) × (thickness of yarn constituting surface knitted fabric; dtex) ^1/2
Wale cover factor (WCF) = (number of wales; number / 2.54 cm) × (thickness of the yarn constituting the surface knitted fabric; dtex) ^1/2

The thickness of the yarn constituting the surface knitted fabric is 2.54 cm square (6.45 c) of the surface knitted fabric.
The thickness of the yarn constituting the stitch existing in the area of m ² ). For example, when two front yarns are supplied to the same needle from two halves to form one stitch, the total thickness of the two front yarns is the total thickness, and the connecting yarns that connect the front and back surfaces Is excluded.
When the thicknesses of the yarns constituting the stitches are different, first, the surface knitted fabric is 2.54 cm square (6.4
The total number of stitches (n) existing in the area of 5 cm ² ) and the thickness of the yarn constituting each stitch (D1)
, D2, D3,..., Dn; dtex). Next, the total thickness (D1 + D2 + D3 +... Dn; dtex) of the yarns constituting each stitch is divided by the total number (n) of the stitches.

In the present invention, the course cover factor (CCF) is preferably 400 to 800, particularly preferably 450 to 750, more preferably 500 to 700, and the wale cover factor (WCF) is preferably 250 to 550, particularly 300 to 500. Is preferable, and 350 to 450 is more preferable.
Further, the ratio of the course cover factor (CCF) / the wale cover factor (WCF) (CCF / WCF) is preferably 1.0 to 2.5, and particularly preferably 1.3 to 2.0.
The surface knitted fabric mentioned here refers to a surface that contacts the human body when used as a pillow cover material. If the front and back sides cannot be distinguished, the total cover factor of the knitted fabric on either side (
TCF) may be 750 to 1250, and the total cover factor of the knitted fabric on the other side is not limited.

Explaining the fiber material constituting the three-dimensional knitted fabric, first, the surface knitted fabric is preferably excellent in hygroscopicity and water absorption from the comfort such as touch, for example, natural fibers such as cotton, hemp, silk, wool, Cupra, rayon, purified cellulose fiber, acetate (di- and triacetate)
Cellulosic fibers such as, for example, a modified cross-sectional yarn such as W-type, and a synthetic fiber such as a polyester-based or polyamide-based modified moisture-absorbing property or water-absorbing property, and the cross-sectional shape of the fiber is round, triangular, L-shaped, T
Polytypes such as dies, Y-type, W-type, Yaba-type, flat, dog-bone type, multi-leaf type, hollow type, and indeterminate types, and the form of the fiber is also raw yarn (unprocessed yarn), spinning Any of yarns, twisted yarns, false twisted yarns, fluid jetting yarns, etc. may be adopted, multifilament yarns or monofilament yarns may be used, and these materials and / or two or more different types of cross-sections and forms are entangled, You may mix and use by well-known composite means, such as a cross twist, a composite false twist process, and a cross knitting.
Moreover, there is no restriction | limiting in particular about the knitted fabric of a back surface, The thing of the same fiber material, a cross section, and a form as the knitted fabric of a surface can be used.
The preferred thickness of the fiber material constituting the knitted fabric on the front and back is 50 to 300 dte in total dtex.
x is preferable, and 100 to 250 dtex is particularly preferable, and the single yarn dtex is 0.1 to 7 dt.
ex is preferable, and 0.5 to 6 dtex is particularly preferable.

Furthermore, as a connecting yarn that connects these front and back knitted fabrics, a monofilament yarn is preferable from the viewpoint of relaxation of misalignment force, polytrimethylene terephthalate fiber, polybutylene terephthalate fiber, polyester fiber such as polyethylene terephthalate fiber, Fibers of any material such as polyamide fibers, polypropylene fibers, polyvinyl chloride fibers, polyester elastomer fibers can be used. Among them, polytrimethylene terephthalate fibers are used as at least a part of the connecting yarns. , Has a cushioning property with elasticity,
Durability is favorable for cushioning after repeated or long-time compression, which is preferable. The cross-sectional shape of the fiber may be round, triangular, L-shaped, T-shaped, Y-shaped, W-shaped, Yaba-shaped, flat-shaped, dog-bone-shaped, etc., multi-leafed, hollow, or irregular However, a round cross section is preferable in terms of improving durability against the cushioning property of the three-dimensional knitted fabric.

The connecting yarn is optimally 100% monofilament yarn, but a multifilament raw yarn or false twisted yarn may be used together. In that case, the monofilament yarn is 30% by mass or more, especially 50%.
It is preferable to constitute at least mass%.
The preferred thickness of the connecting yarn is 10 to 1000 dtex, particularly 20 to 500 dtex in the case of monofilament yarn, and 10 to 10 in total dtex in the case of multifilament yarn.
1000 dtex, particularly 20 to 500 dtex is preferable, and the single yarn dtex is 1 to 7 dte
x is preferable, and 2 to 6 dtex is particularly preferable.

In the knitted fabric on the surface of the three-dimensional knitted fabric of the present invention, it is important to prevent the monofilament yarn used for the connecting yarn from being exposed and to suppress the feeling of roughness and glare due to gloss. As a method of suppressing the exposure of the monofilament yarn, in addition to setting the total cover factor of the present invention within a specific range, the supply tension of the monofilament yarn can be increased by increasing the fineness of the multifilament yarn compared to the fineness of the monofilament yarn. Increase the yarn feed tension of the multi yarn, feed the multi yarn on the overfeed side from the normal feed rate, increase the number of filaments of the multi yarn,
In the case of knitting with a double raschel knitting machine, it is preferable to perform knitting by a method such as supplying yarns of monofilament yarns and multi-yarn needles at least in the same direction.

Further, it is preferable that the value of the relationship “D / d” between the total fineness D (decitex) of the multifilament yarn and the fineness d (decitex) of the connecting yarn in the same stitch of the surface knitted fabric is 1.1 or more, More preferably, it is 1.5-15.0.
In the case of D / d <1.1, the uniform coverage of the monofilament yarn by the multifilament yarn is lowered, and it is not possible to suppress the rough feeling of the knitted fabric surface and the glare due to the gloss, and furthermore, the smooth touch of the surface In some cases, this is not possible.
Furthermore, it is only necessary to increase the coverage of the fibers constituting the surface, and it is preferable to use bulky yarns such as false twisted yarns and spun yarns as multifilament yarns constituting the surface. It is preferable to use a false twisted yarn of a modified cross-section polyester synthetic fiber such as a W-type.
Further, in the three-dimensional knitted fabric, insertion yarns (monofilament yarns and / or multifilament yarns) may be linearly inserted in the warp direction and / or the transverse direction of at least one of the front and back knitted fabrics.

The three-dimensional knitted fabric of the present invention can be knitted with a knitting machine having two opposite rows of needle beds, and can be knitted with a double raschel knitting machine, a double circular knitting machine, a flat knitting machine with a V bed, etc. In order to obtain a high-quality three-dimensional knitted fabric, it is preferable to use a double raschel knitting machine. The gauge of the knitting machine is 9
From gauge to 28 gauge is preferably used.
The knitted fabrics on the front and back sides of the three-dimensional knitted fabric do not need to have the same knitting structure, and may be different knitting structures.
It is possible to improve the lightness and breathability by using a knitted fabric with a plurality of openings, such as mesh knitted fabrics such as corners and hexagons, and marquette knitted fabrics. It is preferable that air permeability is improved by using a knitted fabric having openings such as mesh. Further, raising the surface is preferable because a material having a better touch can be obtained.
In order to achieve the object of the present invention, the thickness of the three-dimensional knitted fabric is preferably 3 mm or more, particularly 5 mm or more, more preferably 8 mm or more, preferably 30 mm or less, particularly 20 mm or less, and further 15 mm.
The following is preferred.

The fibers used for the front and back knitted fabrics or connecting yarns of the present invention may be uncolored or colored.
Coloring methods include pre-spinning dyeing with uncolored yarn in the form of skein or cheese, undiluted solution coloring method in which pigment, dye, etc. are mixed in the undiluted undiluted solution, and dyeing or printing in a three-dimensional knitted form However, since it is difficult to maintain the three-dimensional shape or the processability is poor when dyeing in a three-dimensional knitted form, pre-dyed or undiluted solution coloring is preferable.
As a method for finishing the three-dimensional knitted fabric, when the three-dimensional knitted fabric is used uncolored, or in the case of a three-dimensional knitted fabric using a pre-dyed yarn or a stock solution colored yarn, the raw machine can be finished through processes such as scouring and heat setting. In the case where either the connecting yarn or the front and back yarns are uncolored solid knitted fabric, the raw machine can be finished through processes such as scouring, dyeing and heat setting.

The finished three-dimensional knitted fabric can be processed into the desired shape by means of fusing, sewing, piping, resin processing, etc., or by thermoforming, etc. It is better not to feel it, and it is preferable to process by piping. The piping material may be arbitrarily selected in consideration of the thickness of the sewing portion, the jumping of the connecting thread, and the durability during use. In addition, since the piping part may be damaged due to stress concentration due to washing or the like, it is preferable to sew with a double stitch or the like.
In constructing a pillow cover material using such a three-dimensional knitted fabric, it is preferable to construct a single three-dimensional knitted fabric in terms of cost and productivity for producing a pillow cover material, but if desired, two or more three-dimensional knitted fabrics may be used. You may laminate and use. However, when the three-dimensional knitted fabric is laminated, the three-dimensional knitted fabric constituting 50% or more of the thickness of the pillow cover material may be the three-dimensional knitted fabric specified in the present invention, and the thickness of the pillow cover material is preferably 3 mm or more. In particular, it is preferably 5 mm or more, more preferably 8 mm or more, preferably 30 mm or less, particularly preferably 20 mm or less, and further preferably 15 mm or less.

The present invention will be described more specifically with reference to examples and the like, but the present invention is not limited to these examples and the like.
The measurement method and evaluation method in the present invention are as follows.
(1) Evaluation of pillow cover material A commercially available low-resilience urethane worm was used as the pillow material, and the pillow cover material obtained in the examples and comparative examples covered only the upper surface of the pillow material.
Evaluation was based on an average score of 10 women using a commercial bed.
"Hold feeling"
3 points: Excellent hold feeling 2 points: Neither can be said 1 point: Inferior hold feeling "Heat storage feeling and stuffiness around the neck"
3 points: hardly feel 2 points: feel 1 point: feel pretty

[Example 1]
Using a 9 gauge, 6 mm double raschel knitting machine equipped with 6 ridges, a 167 dtex / 48f polyethylene terephthalate fiber with a W-shaped cross section is formed on two ridges (L1, L2) forming the surface knitted fabric. False twisted yarn (Asahi Kasei Fibers Co., Ltd., trademark “Technofine” false twisted yarn) is supplied in an all-in arrangement to form the back knitted fabric (L5)
, L6) are supplied with the same false twisted yarn in a 3 in 1 out arrangement, and all monofilament yarns (density 1.38) of polyethylene terephthalate fiber of 280 dtex are placed on the L3 ridges forming the connecting yarn. The raw material of the three-dimensional knitted fabric was knitted with the following organization.
L1: 2422/2022 /
L2: 2022/4644 /
L3: 0220/2002 /
L5: 4420/2224/2220/2242/4468/6664/6668/6
646 /
L6: 4468/6664/6668/6646/4420/2224/2220/2
242 /
The obtained raw machine was scoured according to a conventional method, and then heat-set to dry heat to obtain a three-dimensional knitted fabric with a surface knitted fabric having a flat structure and a back knitted fabric having a mesh structure thickness of 8.0 mm.
The surface knitted fabric density of the obtained three-dimensional knitted fabric was 28.2 course / 2.54 cm, 9.9 wal / 2.54 cm, and the total cross-sectional area of the connecting yarn was 0.11 cm ² (the number of connecting yarns). (N) was 558 pieces / 6.54 cm ² ).
The evaluation results of the obtained three-dimensional knitted fabric were excellent with a hold feeling of 2.7 points, a heat storage feeling centered on the neck and a feeling of stuffiness of 2.8 points. Furthermore, it was evaluated that the touch was good.

[Examples 2-5, Comparative Examples 1-2]
In Example 1, a three-dimensional knitted fabric having a total cross-sectional area of the connecting yarn of 0.05 to 0.20 cm ² was finished by changing the dtex of the connecting yarn, the density design of the green machine, and the width at the time of finishing.
The total cross-sectional area of the connecting yarn is 0.07 cm ² (Example 2) when the hold feeling is 2.8 points, the heat storage feeling around the neck and the feeling of elasticity 2.5 points, 0.17 cm ² (Example 5) Is a hold feeling of 2.5 points,
Although the heat storage feeling and stuffiness feeling 2.8 points centered on the neck, although slightly inferior to Example 1, the hold feeling and the heat storage feeling and stuffiness feeling centered on the neck were also excellent. , Especially 0.09cm
² (Example 3) has a hold feeling of 2.8 points, a heat storage feeling and a stuffiness feeling 2.7 points around the neck,
15 cm ² (Example 4) has a hold feeling of 2.6 points, a heat storage feeling and a stuffiness feeling of 2.8 around the neck.
The evaluation result was the same as that of Example 1 in terms of points.
On the other hand, 0.05 cm ² (Comparative Example 1) has a hold feeling of 2.8 points, a heat storage feeling and a stuffiness feeling of 1.5 points around the neck, and 0.20 cm ² (Comparative Example 2) has a hold feeling of 1.5 points. The heat storage feeling and stuffiness feeling 2.8 points centered on the point and the neck, and either the hold feeling or the heat storage feeling and stuffiness feeling mainly on the neck were inferior.
[Comparative Example 3]
The results of evaluating a conventional cotton pillow cover material were a feeling of hold of 2.8 points, a heat storage feeling centered on the neck and a feeling of stuffiness of 1.2 points.

The pillow cover material of the present invention is a pillow cover material that has an excellent hold feeling and improves a heat storage feeling and a feeling of stuffiness centered on the neck.

Claims (4)

A pillow cover material composed of a three-dimensional knitted fabric composed of two layers of front and back knitted fabrics and connecting yarns connecting the two knitted fabrics, and has an area of 2.54 cm square (6.45 cm ² ). The number of connecting yarns inside is N (pieces / 6.45 cm ² ), and the dtex of the connecting yarns is T (g / 1 × 10 ⁶ cm).
When the density of the connecting yarn is ρ ₀ (g / cm ³ ), the solid knitted fabric is 2.54 cm square (6.45 c).
m ² ), the total cross-sectional area (N · T / 1 × 10 ⁶ · ρ ₀ ) of the connecting yarn in the area of 0.07-0.
Pillow cover material characterized by being 18 cm ² . The pillow cover material according to claim 1, wherein the connecting yarn of the three-dimensional knitted fabric is formed of a monofilament yarn. The pillow cover material according to claim 1 or 2, wherein the three-dimensional knitted fabric has a thickness of 3 to 30 mm.   The pillow comprised with the pillow cover material of Claim 1.