LOWER BODY GARMENT FOR MATERNITY
20230218026 · 2023-07-13
Assignee
Inventors
Cpc classification
A41D1/21
HUMAN NECESSITIES
A41F9/00
HUMAN NECESSITIES
International classification
Abstract
A lower body garment has a pair of legs having an upper edge located below a wearer's pregnant belly and a waistband connected to the upper edge. The waistband has a front waistband portion that substantially covers the wearer's pregnant belly and a rear waistband portion that covers the wearer's sacroiliac joints, and which, together with the front waistband portion, encircles the wearer's torso. The rear waistband portion has a rear three-layer section having an inner layer of fabric contacting the wearer's skin, an outer layer of fabric facing outwardly from the wearer, and a middle layer of material between the inner and outer layers of fabric. The front waistband portion has a front three-layer section and a front section having no middle layer of material. Stretch, recovery, and/or modulus of the three-layer sections may be greater than the same properties of the section having no middle layer of material.
Claims
1. A lower body garment comprising: a pair of legs joined at front and rear rise portions and together defining a front upper edge configured to be located on the underside of a wearer's pregnant belly and together defining a rear upper edge configured to be located proximate the wearer's lower back; and a waistband coupled to the front and rear upper edges of the pair of legs, the waistband comprising: a front waistband portion coupled to the front upper edge and configured to substantially cover the wearer's pregnant belly; and a rear waistband portion coupled to the rear upper edge and configured to cover the wearer's lumbar region, and which, together with the front waistband portion, is configured to encircle the wearer's torso; wherein the rear waistband portion comprises a rear reinforced section having at least three layers, including a rear inner layer of fabric configured to contact the wearer's skin, a rear outer layer of fabric configured to face outwardly from the wearer, and a rear middle layer of material between the rear inner and outer layers of fabric; wherein the front waistband portion comprises: a front reinforced section having at least three layers, including a front inner layer of fabric configured to contact the wearer's skin, a front outer layer of fabric configured to face outwardly from the wearer, and a front middle layer of material between the front inner and outer layers of fabric; and a front unreinforced section comprising at least one of the front inner and outer layers of fabric, but lacking the front middle layer of material; wherein an elastic modulus of the rear reinforced section is greater than an elastic modulus of the rear inner and outer layers of fabric together without the rear middle layer of material; and wherein an elastic modulus of the front reinforced section is greater than an elastic modulus of the front inner and outer layers of fabric together without the front middle layer of material.
2. The lower body garment of claim 1, wherein the front reinforced section is located at least along a lower edge of the front waistband portion.
3. The lower body garment of claim 2, wherein the front reinforced section makes up at least a lower quarter of the front waistband portion, and the front unreinforced section makes up at least an upper third of the front waistband portion.
4. The lower body garment of claim 2, wherein the front reinforced section is also located along an upper edge of the front waistband portion, and the front unreinforced section is located vertically between the front reinforced sections along the lower and upper edges of the front waistband portion.
5. The lower body garment of claim 1, wherein the front and rear middle layers of material are made of a plastic.
6. The lower body garment of claim 5, wherein the plastic is polystyrene.
7. The lower body garment of claim 1, wherein the front and rear middle layers of material are non-textile mesh.
8. The lower body garment of claim 7, wherein the non-textile mesh is a polystyrene mesh that is 130 microns thick, has a weight of 50 grams per square meter, and has apertures having a diameter of less than 3 millimeters.
9. The lower body garment of claim 1, wherein the rear upper edge is configured to be located proximate the wearer's sacroiliac joints.
10. The lower body garment of claim 1, wherein the front middle layer of material is self-bonded to at least one of the front inner and outer layers of fabric, and the rear middle layer of material is self-bonded to at least one of the rear inner and outer layers of fabric.
11. A lower body garment comprising: a pair of legs joined at front and rear rise portions and together defining a front upper edge configured to be located on the underside of a wearer's pregnant belly and together defining a rear upper edge configured to be located proximate the wearer's lower back; and a waistband coupled to the front and rear upper edges of the pair of legs, the waistband comprising: a front waistband portion coupled to the front upper edge and configured to substantially cover the wearer's pregnant belly; and a rear waistband portion coupled to the rear upper edge and configured to cover the wearer's lumbar region, and which, together with the front waistband portion, is configured to encircle the wearer's torso; wherein the rear waistband portion comprises a reinforced section having a rear inner layer configured to contact the wearer's skin, a rear outer layer configured to face outwardly from the wearer, and a rear middle layer of high-modulus film self-bonded between the rear inner and outer layers; wherein the front waistband portion comprises: a front reinforced section having a front inner layer configured to contact the wearer's skin, a front outer layer configured to face outwardly from the wearer, and a front middle layer of high-modulus film self-bonded between the front inner and outer layers; and a front unreinforced section that does not include the front middle layer of high-modulus film; and wherein an elastic modulus of the front and rear reinforced sections is greater than an elastic modulus of portions of the waistband that do not include the front or rear middle layers of high-modulus film.
12. The lower body garment of claim 11, wherein the front reinforced section is located at least along a lower edge of the front waistband portion.
13. The lower body garment of claim 12, wherein the front reinforced section makes up at least a lower quarter of the front waistband portion, and the front unreinforced section makes up at least an upper third of the front waistband portion.
14. The lower body garment of claim 11, wherein the front and rear middle layers of high-modulus film are made of a plastic.
15. The lower body garment of claim 14, wherein the plastic is polystyrene.
16. The lower body garment of claim 11, wherein the front and rear middle layers of high-modulus film are mesh film.
17. The lower body garment of claim 16, wherein the front and rear middle layers of high-modulus film are a polystyrene mesh film that is 130 microns thick, has a weight of 50 grams per square meter, and has apertures having a diameter of less than 3 millimeters.
18. The lower body garment of claim 11, wherein the rear upper edge is configured to be located proximate the wearer's sacroiliac joints.
19. A lower body garment comprising: a pair of legs having an upper edge configured to be located below a wearer's pregnant belly; and a waistband connected to the upper edge of the pair of legs, the waistband comprising: a front waistband portion configured to substantially cover the wearer's pregnant belly; and a rear waistband portion configured to cover the wearer's sacroiliac joints, and which, together with the front waistband portion, is configured to encircle the wearer's torso; wherein the rear waistband portion comprises a rear three-layer section having an inner layer of fabric configured to contact the wearer's skin, an outer layer of fabric configured to face outwardly from the wearer, and a middle layer of material between the inner and outer layers of fabric; wherein the front waistband portion comprises a front three-layer section having the inner layer of fabric, the middle layer of material, and the outer layer of fabric, and a front section having no middle layer of material; and wherein recovery of the front and rear three-layer sections is greater than recovery of the inner and outer layers of fabric together without the middle layer of material.
20. The lower body garment of claim 19, wherein the middle layer of material is a plastic film that is self-bonded to at least one of the inner and outer layers of fabric in each of the front and rear three-layer sections.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present disclosure is described with reference to the following Figures. The same numbers are used throughout the Figures to reference like features and like components.
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
DETAILED DESCRIPTION
[0031] According to one example of the present disclosure, as shown in
[0032] The rear waistband portion 16b comprises a rear reinforced section 18, the extent of which is outlined and provided with partial hatching. Referring also to
[0033] In some examples, the front reinforced section 26 (e.g., three-layer section) is located at least along a lower edge 30 of the front waistband portion 16a. According to one alternative, as shown in
[0034] The front and rear reinforced sections 26, 18 are composite panels having different properties than areas of the waistband 16 that do not include the middle layer of material 22. The middle layer of material 22 may have a higher elastic modulus, recovery, and/or stretch than the inner or outer layers of fabric 20, 24, which affects the elastic modulus, recovery, and/or stretch of the reinforced sections 26, 18 overall. According to one example, the middle layer of material 22 is made of a polymer, and more particularly, the front and rear middle layers of material 22 are made of a plastic. Preferably, the plastic is polystyrene. In other examples, the middle layer of material 22 is polyolefin or a shape memory polymer. In some examples, the middle layer of material 22 is a non-woven material, and in a more particular example, the front and rear middle layers of material 22 are a non-textile mesh. The mesh may be formed by gravure printing, extruding, screen printing, or additive printing polymer onto a release sheet, from which the polymer can be removed once set. In other examples, the polymer could be directly applied onto the inner or outer layer of fabric 20, 24 in a mesh pattern. In other examples, the middle layer of material 22 is netting. The netting may be a woven fabric netting. For example, the netting may comprise polyethylene and thermoplastic elastomer threads.
[0035] The mesh or netting may have any shape of apertures, such as square, diamond, circular, ovular, parallelogram, or rectangular apertures. The size of the apertures will generally be on the order of 1 to 3 millimeters or less. The thickness of the mesh or netting may be 100-160 microns, more particularly 130 microns. The mesh or netting may have a weight of 30 gsm-70 gsm, more particularly 50 gsm. The porosity (fraction of open area to total area) of the mesh or netting may be 30 to 50%, more particularly 35 to 40%.
[0036] One example of a particularly appropriate mesh is a 100% polystyrene mesh that is 130 microns thick and has a weight of 50 gsm, with apertures of 1-3 millimeters or less. A preferred mesh is a 100% polystyrene film that is 130 microns thick, has a weight of 50 gsm, has apertures measuring less than 3 millimeters in diameter (preferably 0.9 to 1.1 millimeters major diameter and 0.8 to 0.95 millimeters minor diameter), has an average porosity of 40%, has an elongation of about 120% from 0.1 kg to 1 kg, has a modulus in the machine direction of about 1.2 N/50 mm and in the transverse direction of about 0.8 N/50 mm, and has a recovery of about 88%. Some appropriate meshes are available from Meiwa Gravure Co., Ltd. of Higashi-Osaka City, Japan. The modulus, elongation, and recovery of such a mesh do not change significantly with temperature, such as when the mesh is on-body as part of the lower body garment 10. Thus, incorporating the mesh into the lower body garment 10 can provide increased modulus, high stretch, and fast recovery to the fabric laminates of the front and rear reinforced sections 26, 18.
[0037] Some other types of appropriate mesh and/or netting are sold under the trademark CONWED™ from Schweitzer-Mauduit International, Inc. of Alpharetta, Ga.
[0038] Note that the overall modulus, stretch, and recovery of the laminated panels will depend on the fabrics with which the mesh or netting is laminated. In one example, the inner and outer layers 20, 24 on either side of the middle layer 22 are weft-knitted interlock nylon-spandex fabric. In further examples, the inner and outer layers of fabric 20, 24 can be woven or knit and can be made of natural or synthetic yarns or blends thereof. The outer layer used in the front reinforced section 26 can be the same as or different from the outer layer used in the rear reinforced section 18. Likewise, the inner layer used in the front reinforced section 26 can be the same as or different from the inner layer used in the rear reinforced section 18, and the middle layer used in the front reinforced section 26 can be the same as or different from the middle layer used in the rear reinforced section 18. In other examples, the inner and outer layers of fabric 20, 24 can be made of the same fabric.
[0039] Although the front and rear reinforced sections 26, 18 are shown and described as including three layers, it is possible that the front and rear reinforced sections 26, 18 could include more than three layers. In one example, two or more layers of the middle layer of material 22 could be provided. In another example, two or more layers of material (e.g., fabric) can be provided between the middle layer of material 22 and the wearer. In another example, two or more layers of material (e.g., fabric) can be provided externally of the middle layer of material 22. Further, the front unreinforced section 28 of the front waistband portion 16a could include both the inner and outer layers of fabric 20, 24, only the inner or outer layer of fabric 20 or 24, or could include an inner and/or outer layer of fabric that is different from those used in the front reinforced section 26.
[0040] According to some examples, the middle layer of material 22 is bonded to at least one of the inner and outer layers of fabric 20, 24. As shown in
[0041] As noted, inclusion of the middle layer of material 22 into a composite fabric panel changes the properties of the reinforced sections 26, 18 as compared to non-reinforced sections of the waistband 16. In some examples, recovery of the front and rear reinforced sections 26, 18 is greater than recovery (the tendency of a material to return to its original dimensions once a load is removed) of the inner and outer layers of fabric 20, 24 together without the middle layer of material 22. Additionally, the elastic modulus of the rear reinforced section 18 as a composite panel is greater than the elastic modulus of the rear inner and outer layers of fabric 20, 24 together (e.g., sewn or bonded into a two-layer panel) without the rear middle layer of material 22, and the elastic modulus of the front reinforced section 26 as a composite panel is greater than the elastic modulus of the front inner and outer layers of fabric 20, 24 together (e.g., sewn or bonded into a two-layer panel) without the front middle layer of material 22. This is due to the elastic modulus of the middle layer of material 22, which is greater than the moduli of the inner and outer layers of fabric 20, 24 alone (i.e., as a single layer of fabric) or together (e.g., sewn or bonded into a two-layer panel). Further, stretch of the front and rear reinforced sections 26, 18 may also be greater than stretch of the inner and outer layers of fabric 20, 24 alone or together, but without the middle layer of material 22. This is due to the middle layer of material 22 holding the knit of the inner and outer layers of fabric 20, 24 together closer than they might otherwise be held were the middle layer of material 22 not included in the composite panel, thereby allowing the knit of the inner and outer layers of fabric 20, 24 to be stretched more upon application of tensile force. Recovery, elastic modulus, and stretch may be determined using the ASTM testing standards for same or their equivalents. In one example, elastic modulus can be approximated by measuring the load on a test specimen of the material at a given elongation. Given the measured load, original length of the specimen, change in length of the specimen at the given elongation, and the negligible cross sectional area of the specimen, the elastic modulus can be determined.
[0042] In one example, the loads at 50% elongation of two test specimens were measured in order to determine the effect of the middle layer of material on a composite panel. The first test specimen included two nylon-spandex weft knit interlock fabrics layered one on top of the other. The second test specimen included two layers of the same nylon-spandex weft knit interlock fabric, but with the preferred 100% polystyrene mesh provided from Meiwa Gravure Co., Ltd. sandwiched between and self-bonded to the two layers of fabric. Both test specimens had the same dimensions. The load at 50% elongation of the first test specimen was 1.66 lbf, while the load at 50% elongation of the second test specimen was 2.46 lbf. Thus, the load at 50% elongation (and correspondingly the elastic modulus) of the three-layer composite panel including the middle layer of material 22 increased by 48% in comparison to a panel with the same two fabric layers but no middle layer of high-modulus material.
[0043] The high stretch, recovery, and elastic modulus of the front and rear reinforced sections 26, 18 provide a supportive, very slight compressive feel to the wearer. The front reinforced section 26 applies upward lifting force to the bottom of her belly, while the rear reinforced section 18 applies an inward compressive force on her sacroiliac joints and/or lower back. In some examples, the rear waistband portion 16b and rear reinforced section 18 thereof are configured to extend up along the wearer's entire lumbar region, providing support to that area as well.
[0044]
[0045] According to another alternative of the lower body garment 210 as shown in
[0046] In any of the above examples, the front unreinforced section 28, 128, 228 having no middle layer of material 22 may include only the inner layer of fabric 20 or only the outer layer of fabric 24 or may include one or more layers of material different from the inner and outer layers of fabric 20, 24. This may allow the front unreinforced section 28, 128, 228 to cover her belly even more, with less compression than the front reinforced section 26, 126, 226, as her belly grows.
[0047] Thus, the present disclosure is of a lower body garment 10, 110, 210 comprising a pair of legs 12 joined at front and rear rise portions 13, 15 and together defining a front upper edge 14a configured to be located on the underside of a wearer's pregnant belly and together defining a rear upper edge 14b configured to be located proximate the wearer's lower back. A waistband 16 is coupled to the front and rear upper edges 14a, 14b of the pair of legs 12. The waistband 16 comprises a front waistband portion 16a coupled to the front upper edge 14a and configured to substantially cover the wearer's pregnant belly and a rear waistband portion 16b coupled to the rear upper edge 14b and configured to cover the wearer's lumbar region, and which, together with the front waistband portion 16a, is configured to encircle the wearer's torso. The rear waistband portion 16b comprises a reinforced section 18, 118, 218 having a rear inner layer 20 configured to contact the wearer's skin, a rear outer layer 24 configured to face outwardly from the wearer, and a rear middle layer 22 of high-modulus film self-bonded between the rear inner and outer layers 20, 24. The front waistband portion 16a comprises a front reinforced section 26, 126, 226 having a front inner layer 20 configured to contact the wearer's skin, a front outer layer 24 configured to face outwardly from the wearer, and a front middle layer 22 of high-modulus film self-bonded between the front inner and outer layers 20, 24. The front waistband portion 16a also comprises a front unreinforced section 28, 128, 228 that does not include the front middle layer 22 of high-modulus film. The elastic modulus of the front and rear reinforced sections 26, 126, 226, 18, 118, 218 is greater than the elastic modulus of portions of the waistband 16 that do not include the front or rear middle layers 22 of high-modulus film.
[0048] In one example, the front and rear middle layers 22 of high-modulus film are made of a plastic. In one example, the front and rear middle layers of high-modulus film are mesh film. While the above-noted alternatives apply, preferably, the front and rear middle layers of high-modulus film are a polystyrene mesh film that is 130 microns thick, has a weight of 50 grams per square meter, and has apertures having a diameter of less than 3 millimeters.
[0049] Although the lower body garments 10, 110, 210 shown herein are leggings, the lower body garments could instead be bike shorts, panties, or swim bottoms. The lower body garment could alternatively be a pair of looser shorts or pants including the above-noted waistband 16 stitched to the upper edge 14 of the pair of legs.
[0050] In the present description, certain terms have been used for brevity, clarity, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes only and are intended to be broadly construed. The different assemblies described herein may be used alone or in combination with other systems. Various equivalents, alternatives, and modifications are possible within the scope of the appended claims.