Method for manufacturing sweatpants and sweatpants

Abstract

The present invention discloses a manufacturing method of sports trousers and the sports trousers. The manufacturing method of the sports trousers includes the production of a front trouser piece sample, and the production of the front trouser piece sample includes the following steps: cutting out a semi-finished front trouser piece on the fabric, the semi-finished front trouser piece having a first line segment, a second line segment and a third line segment connected in sequence, and the first line segment, the second line segment and the third line segment are all located above the technological line of the calf circumference; drawing two first cutting lines and a second cutting line with equal lengths on the semi-finished front trouser piece, and the first cutting line, the second cutting line and the second line segment form an isosceles triangle; sewing the first cutting line and the second cutting line together to form a first sewing line. The sports trousers are made by the above method. The manufacturing method and the sports trousers of the present invention enable the sports trousers to be both body-fitting and beautiful, and have sufficient movement allowance at the knee joint.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing, and in particular to a method for manufacturing sports pants and the sports pants. Background Art

[0002] In recent years, with the continuous development of technology in the textile industry and the continuous improvement of people's living standards, people are more inclined to a healthy lifestyle, and their participation and investment in sports are also increasing. The requirements for sportswear are no longer limited to style, color, etc., but have put forward higher requirements for comfort and functionality. In recent years, due to the impact of the new crown epidemic, home fitness has shown a blowout growth. Since there are many human joint stretching exercises involved in comprehensive training such as fitness, higher requirements are placed on clothing, especially pants. They must not only meet people's daily wear needs, but also be convenient for exercise, reduce the restraint on the human body during exercise, and facilitate the flexible rotation of various joints of the human body during exercise. However, existing sports pants often only take into account the movement margin, and are generally loose and not slim and beautiful enough. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a method for manufacturing sports pants and sports pants, so that the sports pants are both slimming and beautiful and have sufficient exercise margin.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] Technical solution 1, a method for making sports pants, including making a front trouser piece sample, the making of the front trouser piece sample comprising the following steps: cutting a semi-finished front trouser piece from a fabric, the semi-finished front trouser piece having a first outer seam line, the first outer seam line having a first line segment, a second line segment, and a third line segment connected in sequence, the first line segment being inclined inward from top to bottom, the second line segment being inclined outward from top to bottom, the third line segment being inclined outward from top to bottom, the angle between the first line segment and the second line segment being an obtuse angle, the second line segment and the third line segment being obtuse angles, The angle is an obtuse angle; draw a first calf-circumference process line on the front trouser piece semi-finished product, and the first line segment, the second line segment and the third line segment are all located above the calf-circumference process line; draw two first cutting lines and second cutting lines of equal length on the front trouser piece semi-finished product, the first cutting line, the second cutting line and the second line segment form an isosceles triangle, and the intersection of the first cutting line and the second cutting line is located 3-5 cm above the first calf-circumference process line; sew the first cutting line and the second cutting line together to form a first sewing line and obtain a front trouser piece sample.

[0006] Based on technical solution one, there is also provided technical solution two, in which the first cutting line and the first line segment are located on the same straight line.

[0007] Based on Technical Solution 2, there is also Technical Solution 3. In Technical Solution 3, it includes the production of the back trouser piece sample. The production of the back trouser piece sample includes the following steps: Cut out the semi-finished back trouser piece on the fabric. The semi-finished back trouser piece has a second inner seam line and a second outer seam line; Draw the second calf circumference process line on the semi-finished back trouser piece; Draw two arc-shaped third cutting lines and fourth cutting lines with equal lengths above the second calf circumference process line. Both ends of the third cutting line and the fourth cutting line intersect with the second inner seam line and the second outer seam line, and the third cutting line and the fourth cutting line are mirror-symmetrical; Cut the semi-finished back trouser piece along the third cutting line and the fourth cutting line, and sew the third cutting line and the fourth cutting line together to form the second sewing line and obtain the back trouser piece sample.

[0008] Based on Technical Solution 3, there is also Technical Solution 4. In Technical Solution 4, it includes the production of the crotch splicing piece sample; The semi-finished front trouser piece has a first inner seam line. The first inner seam line has a front crotch arc line and a first splicing line intersecting with the front crotch arc line. The first splicing line is above the first calf circumference process line; The second inner seam line has a rear crotch arc line and a second splicing line intersecting with the rear crotch arc line. The second splicing line is above the second calf circumference process line; The production of the crotch splicing piece sample includes the following steps: Cut out the crotch splicing piece sample on the fabric. The crotch splicing piece sample has two first splicing parts. The two first splicing parts are connected as a whole by the first symmetry line and are symmetrical about the first symmetry line. The first splicing part has a third splicing line and a fourth splicing line. One end of the third splicing line and one end of the fourth splicing line respectively intersect with both ends of the first symmetry line, and the other end of the third splicing line and the other end of the fourth splicing line intersect; The third splicing line is suitable for sewing with the first splicing line, and the fourth splicing line is suitable for sewing with the second splicing line.

[0009] Based on Technical Solution 4, there is also Technical Solution 5. In Technical Solution 5, it includes the production of the trouser pocket splicing piece sample; The first outer seam line has a fifth splicing line between the waist and the thigh circumference. The fifth splicing line is above the first line segment and intersects with the first line segment. The second outer seam line has a sixth splicing line between the waist and the thigh circumference; The semi-finished back trouser piece also has a second waist process line; The production of the trouser pocket splicing piece sample includes the following steps; Cut out the trouser pocket splicing piece sample on the fabric. The trouser pocket splicing piece sample has a seventh splicing line, an eighth splicing line, and a ninth splicing line connected end to end. The seventh splicing line is suitable for sewing with the fifth splicing line, and the ninth splicing line is suitable for sewing with the sixth splicing line; When the seventh splicing line is sewn with the fifth splicing line and the ninth splicing line is sewn with the sixth splicing line, the ninth splicing line and the first line segment are on the same straight line, and the eighth splicing line and the second waist process line of the semi-finished back trouser piece are on the same straight line.

[0010] Based on Technical Solution Five, there is also a Technical Solution Six. In Technical Solution Six, it further includes the production of a waistband sample; the first outer seam line has a tenth splicing line above the fifth splicing line, and both ends of the tenth splicing line are respectively connected to the waist line of the front trouser piece semi-finished product and the fifth splicing line; the production of the waistband sample includes the following steps: cutting out a waistband sample on the fabric, the waistband sample is provided with two second splicing parts, the two second splicing parts are symmetrical about the second symmetry line and are connected into one body through the second symmetry line, and the second splicing part has an eleventh splicing line, a twelfth splicing line and a thirteenth splicing line connected in sequence; the eleventh splicing line is suitable for sewing with the tenth splicing line, the twelfth splicing line is suitable for sewing with the eighth splicing line, and the thirteenth splicing line is suitable for sewing with the second waist process line of the rear trouser piece semi-finished product; wherein, the included angle between the eleventh splicing line and the twelfth splicing line is equal to the included angle between the tenth splicing line and the eighth splicing line.

[0011] Based on Technical Solution Six, there is also a Technical Solution Seven. In Technical Solution Seven, the front trouser piece sample, the rear trouser piece sample, the trouser pocket splicing piece sample, the crotch splicing piece sample and the waistband sample are sewn together according to the corresponding sewing lines to obtain a sports trousers.

[0012] Based on Technical Solution Seven, there is also a Technical Solution Eight. In Technical Solution Eight, the sports trousers are prepared from an elastic fabric, and the content of spandex in the elastic fabric is 10%-15wt%; the elastic elongation rate of the elastic fabric is 110%-130%, and the elastic recovery rate is 94%-97%.

[0013] The present invention also provides a pair of sports trousers, hereinafter marked as Technical Solution Nine. In Technical Solution Nine, it is made by using the production method of the sports trousers described in Technical Solution Seven or Eight.

[0014] From the above description of the present invention, it can be seen that, compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In Technical Solution 1, the first cutting line and the second cutting line are drawn on the front trouser piece semi-finished product. The first cutting line, the second cutting line, and the second line segment form an isosceles triangle. The first cutting line and the second cutting line are sewn together to form the first sewing line, that is, the isosceles triangle formed by the first cutting line, the second cutting line, and the second line segment is hidden and becomes the first sewing line. Since the isosceles triangle is above the first calf circumference process line, when the isosceles triangle becomes the first sewing line, a bulge will be formed at the knee, thus providing sufficient margin for the movement of the knee joint. At the same time, the included angle between the first line segment and the second line segment is an obtuse angle, and the included angle between the second line segment and the third line segment is an obtuse angle, making the apex angle of the isosceles triangle smaller, having little impact on the overall front trouser piece, and making the first sewing line basically distributed along the rectus femoris and vastus lateralis. This cutting design fits the leg shape better and is more tailored, so that sufficient movement margin can be provided for users without making the sweatpants too large, which is more beautiful; in addition, the manufacturing method of this front trouser piece is simple.

[0016] 2. In Technical Solution 2, the first cutting line and the first line segment are on the same straight line. After the front trouser piece is made into sweatpants, it has a three-dimensional effect visually and is more beautiful.

[0017] 3. In Technical Solution 3, the third cutting line and the fourth cutting line are drawn on the back trouser piece semi-finished product. After cutting the back trouser piece semi-finished product along the third cutting line and the fourth cutting line, the third cutting line and the fourth cutting line are sewn together to form the second sewing line. It can be seen that the second sewing line is above the second calf circumference process line, and the position of the second sewing line corresponds to the popliteal fossa, which is more in line with the human body configuration. And the second sewing line cooperates with the first sewing line to be more conducive to forming a bulge on the front side of the knee, thus providing margin for the movement of the knee joint, and the design of the second sewing line is more beautiful.

[0018] 4. In Technical Solution 4, the crotch splicing piece is basically distributed along the adductor longus of the human thigh, so that the activity range of the hip joint can be greatly increased, and the movement comfort of the crotch can be improved.

[0019] 5. In Technical Solution 5, after the pocket splicing piece is spliced with the front trouser piece and the back trouser piece, the ninth splicing line and the first line segment are on the same straight line, and the eighth splicing line and the waist line of the back trouser piece semi-finished product are on the same straight line, which is more three-dimensional and more beautiful visually.

[0020] 6. In Technical Solution 6, the production of the waistband makes the sweatpants form a T-shaped structure at the back after being made, which is more in line with the human physiological curve and reserves enough activity space for the buttocks. While ensuring that the trouser legs are three-dimensional and shaped, the movement comfort of the buttocks is improved.

[0021] 8. In Technical Solution 8, the sweatpants are made of elastic fabric, and the sweatpants have good elasticity and are more comfortable to move.

[0022] 9. In technical solution nine, the present invention also provides a pair of sports pants, which are prepared by the above method. The sports pants have a three-dimensional structure, fit the waist and leg shape, are slim and upright, and have sufficient room for movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of each cut piece being prepared as a sample from a semi-finished product in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of drawing a first cutting line and a second cutting line on a semi-finished front trouser piece in an embodiment of the invention;

[0026] Figure 3 A schematic diagram of drawing the third cutting line and the fourth cutting line on the semi-finished back trouser piece in an embodiment of the invention;

[0027] Figure 4 Schematic diagram of a trouser pocket splicing piece sample, a crotch splicing piece sample, and a waistband sample in an embodiment of the present invention;

[0028] Figure 5 is a front view of the sports pants according to an embodiment of the present invention;

[0029] Figure 6 is a side view of the sports pants according to an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the back of the sports pants according to an embodiment of the present invention.

[0031] Description of main reference numerals:

[0032] Semi-finished product of front trouser piece 10; First outer sewing line 11; First line segment 111; Second line segment 112; Third line segment 113; Fifth splicing line 114; Tenth splicing line 115; First inner sewing line 12; Front crotch arc 121; First splicing line 122; First upper calf circumference process line 13; First cutting line 14; Second cutting line 15; First lower calf circumference process line 16; First thigh circumference line 17; First hip circumference line 18; First waist process line 19; Semi-finished product of rear trouser piece 20; Second outer sewing line 21; Sixth splicing line 211; Second inner sewing line 22; Rear crotch arc 221; Second splicing line 222; Second upper calf circumference process line 23; Third cutting line 24; Fourth cutting line 25; Second lower calf circumference process line 26; Second thigh circumference line 27; Second hip circumference line 28; Second waist process line 29; Crotch splicing piece sample 30; First splicing part 31; Third splicing line 311; Fourth splicing line 312; First symmetry line 32; Pocket splicing piece sample 40; Seventh splicing line 41; Eighth splicing line 42; Ninth splicing line 43; Waistband sample 50; Second splicing part 51; Eleventh splicing line 511; Twelfth splicing line 512; Thirteenth splicing line 513; Second symmetry line 52; First sewing line 01; Second sewing line 02. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the claims, description and above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are all used to distinguish different objects and not for describing a specific order.

[0035] In the claims, description and above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate orientation or position relationship, it is based on the orientation and position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.

[0036] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated into one body, and being fixedly connected through other devices or elements.

[0037] In the claims, the description and the above-mentioned drawings of the present invention, when using the terms "comprising", "having" and their variants, are intended to mean "including but not limited to".

[0038] See Figures 1-4 , Figures 1-4 shows a front trouser panel sample, a rear trouser panel sample, a crotch splicing panel sample 30, a trouser pocket splicing panel sample 40 and a waistband sample 50 of the sweatpants.

[0039] The present invention provides a method for manufacturing a sweatpant, including manufacturing a front trouser panel sample, manufacturing a rear trouser panel sample, manufacturing a crotch splicing panel sample 30, manufacturing a trouser pocket splicing panel sample 40 and manufacturing a waistband sample 50.

[0040] (1) The manufacturing of the front trouser panel sample includes the following steps:

[0041] Cut out a front trouser panel semi-finished product 10 on the fabric. The front trouser panel semi-finished product 10 has a first outer seam 11. The first outer seam 11 has a first line segment 111, a second line segment 112 and a third line segment 113 connected in sequence. The first line segment 111 is inclined inwards from top to bottom, the second line segment 112 is inclined outwards from top to bottom, the third line segment 113 is inclined outwards from top to bottom. The included angle between the first line segment 111 and the second line segment 112 is an obtuse angle, and the included angle between the second line segment 112 and the third line segment 113 is an obtuse angle. The front trouser panel semi-finished product 10 has a first inner seam 12. The first inner seam 12 has a front crotch arc 121 and a first splicing line 122 intersecting with the front crotch arc 121. The first splicing line 122 is above the first lower leg circumference process line 13. The first outer seam 11 has a fifth splicing line 114 between the waist and the thigh circumference. The first outer seam 11 has a tenth splicing line 115 above the fifth splicing line 114. The fifth splicing line 114 is above the first line segment 111 and intersects with the first line segment 111. The two ends of the tenth splicing line 115 are respectively connected to the waist line and the fifth splicing line 114 of the front trouser panel semi-finished product 10.

[0042] Draw the first lower leg circumference process line 13 on the front trouser panel semi-finished product 10. The first line segment 111, the second line segment 112 and the third line segment 113 are all above the lower leg circumference process line. Figure 2In it, on the semi-finished front trouser piece 10, there are also drawn a first lower calf circumference process line 16; a first thigh circumference line 17; a first hip circumference line 18; a first waist process line 19;

[0043] On the semi-finished front trouser piece 10, draw two first cutting lines 14 and a second cutting line 15 with equal lengths. The first cutting line 14, the second cutting line 15, and the second line segment 112 form an isosceles triangle. The intersection point of the first cutting line 14 and the second cutting line 15 is 3 - 5 cm above the first upper calf circumference process line 13. Among them, the first cutting line 14 and the first line segment 111 are on the same straight line. During the drawing process, the intersection point of the perpendicular bisector of the second line segment 112 and the extension line of the first line segment 111 can be made, and connecting this intersection point with the intersection point of the second line segment 112 and the third line segment 113 can obtain the second cutting line 15. However, it should be understood that there can also be other drawing methods.

[0044] Sew the first cutting line 14 and the second cutting line 15 together to form a first sewing line 01. In practical applications, the isosceles triangle can be cut and then the first cutting line 14 and the second cutting line 15 can be sewn together, or the first cutting line 14 and the second cutting line 15 can be directly sewn together to obtain the front trouser piece sample. This embodiment will not elaborate on this.

[0045] (2) Making of the rear trouser piece sample. The making of the rear trouser piece sample includes the following steps:

[0046] Cut out a semi-finished rear trouser piece 20 on the fabric. The semi-finished rear trouser piece 20 has a second outer sewing line 21 and a second inner sewing line 22. The second outer sewing line 21 has a sixth splicing line 211 between the waist and the thigh circumference. The second inner sewing line 22 has a rear crotch arc 221 and a second splicing line 222 intersecting with the rear crotch arc 221. The second splicing line 222 is above the second upper calf circumference process line 23. Figure 3 In it, on the semi-finished rear trouser piece 20, there are also drawn a second lower calf circumference process line 26; a second thigh circumference line 27; a second hip circumference line 28; a second waist process line 29;

[0047] Draw a second upper calf circumference process line 23 on the semi-finished rear trouser piece 20;

[0048] Draw two third cutting lines 24 and a fourth cutting line 25 with equal lengths and in an arc shape above the second upper calf circumference process line 23. Both ends of the third cutting line 24 and the fourth cutting line 25 intersect with the second inner sewing line 22 and the second outer sewing line 21, and the third cutting line 24 and the fourth cutting line 25 are mirror-symmetrical;

[0049] Cut the rear trouser panel semi-finished product 20 along the third cutting line 24 and the fourth cutting line 25, and sew the third cutting line 24 and the fourth cutting line 25 together to form the second sewing line 02, thus obtaining the rear trouser panel sample.

[0050] (3) Manufacture of the crotch splicing piece sample 30, including the following steps:

[0051] Cut out the crotch splicing piece sample 30 on the fabric;

[0052] The crotch splicing piece sample 30 is provided with two first splicing parts 31. The two first splicing parts 31 are connected as a whole by the first symmetry line 32 and are symmetrical about the first symmetry line 32. The first splicing part 31 is provided with a third splicing line 311 and a fourth splicing line 312. One end of the third splicing line 311 and one end of the fourth splicing line 312 respectively intersect with both ends of the first symmetry line 32, and the other end of the third splicing line 311 and the other end of the fourth splicing line 312 intersect; the third splicing line 311 is suitable for being sewn with the first splicing line 122, and the fourth splicing line 312 is suitable for being sewn with the second splicing line 222.

[0053] (4) Manufacture of the trouser pocket splicing piece sample 40;

[0054] The manufacture of the trouser pocket splicing piece sample 40 includes the following steps;

[0055] Cut out the trouser pocket splicing piece sample 40 on the fabric;

[0056] The trouser pocket splicing piece sample 40 has a seventh splicing line 41, an eighth splicing line 42 and a ninth splicing line 43 connected end to end. The seventh splicing line 41 is suitable for being sewn with the fifth splicing line 114, and the ninth splicing line 43 is suitable for being sewn with the sixth splicing line 211; when the seventh splicing line 41 is sewn with the fifth splicing line 114 and the ninth splicing line 43 is sewn with the sixth splicing line 211, the ninth splicing line 43 and the first line segment 111 are on the same straight line, and the eighth splicing line 42 and the second waist process line 29 of the rear trouser panel semi-finished product 20 are on the same straight line.

[0057] (5) Manufacture of the waistband sample 50;

[0058] The manufacture of the waistband sample 50 includes the following steps:

[0059] Cut out the waistband sample 50 on the fabric;

[0060] The waistband sample 50 is provided with two second splicing parts 51. The two second splicing parts 51 are symmetric about the second symmetry line 52 and are integrated into one body through the second symmetry line 52. The second splicing part 51 has an eleventh splicing line 511, a twelfth splicing line 512 and a thirteenth splicing line 513 connected in sequence. The eleventh splicing line 511 is suitable for being sewn with the tenth splicing line 115, the twelfth splicing line 512 is suitable for being sewn with the eighth splicing line 42, and the thirteenth splicing line 513 is suitable for being sewn with the second waist process line 29 of the rear trouser piece semi-finished product 20. Wherein, the included angle between the eleventh splicing line 511 and the twelfth splicing line 512 is equal to the included angle between the tenth splicing line 115 and the eighth splicing line 42.

[0061] (6) Sew the front trouser piece sample, the rear trouser piece sample, the crotch splicing piece sample 30, the trouser pocket splicing piece sample 40 and the waistband sample 50 together along the corresponding sewing lines to form a sports trousers, that is, sew the first inner sewing line 12 of the front trouser piece sample with the second inner sewing line 22 of the rear trouser piece, sew the first outer sewing line 11 of the front trouser piece sample with the second outer sewing line 21 of the rear trouser piece, sew the third splicing line 311 of the crotch splicing piece sample 30 with the first splicing line 122 of the front trouser piece sample, sew the fourth splicing line 312 of the crotch splicing piece sample 30 with the second splicing line 222 of the rear trouser piece sample, sew the seventh splicing line 41 of the trouser pocket splicing piece sample 40 with the fifth splicing line 114 of the front trouser piece sample, sew the ninth splicing line 43 of the trouser pocket splicing piece sample 40 with the sixth splicing line 211 of the rear trouser piece sample, and sew the eleventh splicing line 511, the twelfth splicing line 512 and the thirteenth splicing line 513 of the waistband sample 50 with the tenth splicing line 115 of the front trouser piece sample, the eighth splicing line 42 of the trouser pocket splicing piece sample 40 and the second waist process line 29 of the rear trouser piece sample respectively, then the sports trousers can be made, as Figures 5-7 shown.

[0062] In practical applications, the front trouser piece sample, the rear trouser piece sample, the crotch splicing piece sample 30, the trouser pocket splicing piece sample 40 and the waistband sample 50 can be either paper patterns or cloth samples cut from the fabric for preparing the sports trousers, as long as the various cut pieces of the sports trousers can be made by referring to the samples, and this embodiment does not limit this.

[0063] In specific implementation, the sweatpants are prepared from stretch fabric. The spandex content in the stretch fabric is 10%-15wt%, the elastic elongation rate of the stretch fabric is 110%-130%, and the elastic recovery rate is 94%-97%. In one implementation, the front trouser piece, rear trouser piece, trouser pocket splicing piece and waistband splicing piece of the sweatpants are prepared from woven four-way stretch fabric. The spandex content of the woven four-way stretch fabric is 15wt%, the elastic elongation rate is 120%; the elastic recovery rate is 95%; the crotch splicing piece of the sweatpants uses weft knitted stretch fabric, and the spandex content of this fabric is 12wt%, the elastic elongation rate is 125%, the elastic recovery rate is 94%, and the air permeability is 600mm / s. In another implementation, the front trouser piece, rear trouser piece, trouser pocket splicing piece and waistband splicing piece of the sweatpants are prepared from woven four-way stretch fabric. The spandex content of the woven four-way stretch fabric is 13wt%, the elastic elongation rate is 100%; the elastic recovery rate is 96%; the crotch splicing piece of the sweatpants uses warp knitted stretch fabric, and the spandex content of this fabric is 15wt%, the elastic elongation rate is 130%, the elastic recovery rate is 97%, and the air permeability is 800mm / s. It can be seen that the sweatpants prepared from stretch fabric have good elasticity, are more comfortable to move in, and the crotch part uses a fabric with good air permeability, making them more breathable and healthy.

[0064] It can be seen that by adopting this technical solution, the first cutting line 14 and the second cutting line 15 are drawn on the front trouser piece semi-finished product 10. The first cutting line 14, the second cutting line 15 and the second line segment 112 form an isosceles triangle. The first cutting line 14 and the second cutting line 15 are sewn together to form the first sewing line 01, that is, the isosceles triangle formed by the first cutting line 14, the second cutting line 15 and the second line segment 112 is hidden and becomes the first sewing line 01. Since the isosceles triangle is located above the first calf circumference process line 13, a bulge will be formed at the knee after the isosceles triangle becomes the first sewing line 01, thus providing sufficient margin for the movement of the knee joint. At the same time, the included angle between the first line segment 111 and the second line segment 112 is an obtuse angle, and the included angle between the second line segment 112 and the third line segment 113 is an obtuse angle, so that the apex angle of the isosceles triangle is small, and the overall impact on the front trouser piece is not significant. And the first sewing line 01 is basically distributed along the rectus femoris and vastus lateralis muscles. This cutting design fits the leg shape better and is more tailored, so that it is not necessary to make the sports trousers larger to provide sufficient movement margin for users, and it is more beautiful; in addition, the manufacturing method of this front trouser piece is simple; wherein, the first cutting line 14 and the first line segment 111 are on the same straight line, and the front trouser piece has a three-dimensional effect visually after being made into a sports trouser, which is more beautiful; the third cutting line 24 and the fourth cutting line 25 are drawn on the back trouser piece semi-finished product 20, and after cutting the back trouser piece semi-finished product 20 along the third cutting line 24 and the fourth cutting line 25, the third cutting line 24 and the fourth cutting line 25 are sewn together to form the second sewing line 02. It can be seen that the second sewing line 02 is located above the second calf circumference process line 23, and the second sewing line 02 corresponds to the position of the popliteal fossa, which is more in line with the human body configuration, and the second sewing line 02 cooperates with the first sewing line 01 to more effectively form a bulge on the front side of the knee, thus providing margin for the movement of the knee joint, and the design of the second sewing line 02 is more beautiful; the crotch splicing piece is basically distributed along the adductor longus muscle of the human thigh, so that the activity range of the hip joint can be greatly increased, and the movement comfort of the crotch can be improved; after the pocket splicing piece is spliced with the front trouser piece and the back trouser piece, the ninth splicing line 43 and the first line segment 111 are on the same straight line, and the eighth splicing line 42 and the waist line of the back trouser piece semi-finished product 20 are on the same straight line, which is more three-dimensional and more beautiful visually; the production of the waistband makes the sports trousers form a T-shaped structure at the back after being made, which is more in line with the human physiological curve and reserves sufficient activity space for the buttocks. While ensuring that the trouser legs are three-dimensional and shaped, the movement comfort of the buttocks is improved.

[0065] The present invention also provides a pair of sports trousers prepared by the above method, as Figures 5-7As shown, the side of the sweatpants is formed into an X shape by the seventh splicing line 41, the ninth splicing line 43, the first line segment 111, the first sewing line 01 and the third line segment 113. The crotch of the sweatpants is U-shaped and the back of the sweatpants is T-shaped. It can be seen that the sweatpants have a three-dimensional structure, fit the waist and leg shape, are slim and upright, and have sufficient room for movement.

[0066] The above description and embodiments are intended to explain the scope of protection of the present invention, but do not constitute a limitation thereto. Modifications, equivalent substitutions, or other improvements to the embodiments of the present invention or portions thereof that can be obtained by a person of ordinary skill in the art through logical analysis, reasoning, or limited experimentation based on the teachings of the present invention or the above embodiments, combined with common knowledge, ordinary technical knowledge in the field, and / or prior art, should all be included within the scope of protection of the present invention.

Claims

1. A method for manufacturing sweatpants, characterized in that, Including the production of the front trouser piece sample, the production of the front trouser piece sample includes the following steps: Cut out a semi-finished front trouser piece (10) on the fabric. The semi-finished front trouser piece (10) has a first outer sewing line (11). The first outer sewing line (11) has a first line segment (111), a second line segment (112) and a third line segment (113) connected in sequence. The first line segment (111) inclines inwards from top to bottom, the second line segment (112) inclines outwards from top to bottom, and the third line segment (113) inclines outwards from top to bottom. The included angle between the first line segment (111) and the second line segment (112) is an obtuse angle, and the included angle between the second line segment (112) and the third line segment (113) is an obtuse angle; Draw a first calf circumference upper process line (13) on the semi-finished front trouser piece (10). The first line segment (111), the second line segment (112) and the third line segment (113) are all located above the calf circumference upper process line; Draw two first cutting lines (14) and a second cutting line with equal lengths on the semi-finished front trouser piece (10). The first cutting line (14), the second cutting line (15) and the second line segment (112) form an isosceles triangle. The intersection point of the first cutting line (14) and the second cutting line (15) is 3-5 cm above the first calf circumference upper process line (13); Sew the first cutting line (14) and the second cutting line (15) together to form a first sewing line (01) and obtain the front trouser piece sample.

2. The manufacturing method of a pair of sweatpants according to claim 1, characterized in that, The first cutting line (14) is on the same straight line as the first line segment (111).

3. The manufacturing method of a pair of sweatpants according to claim 2, characterized in that, Including the production of the rear trouser piece sample, the production of the rear trouser piece sample includes the following steps: Cut out a semi-finished rear trouser piece (20) on the fabric. The semi-finished rear trouser piece (20) has a second inner sewing line (22) and a second outer sewing line (21); Draw a second calf circumference upper process line (23) on the semi-finished rear trouser piece (20); Draw two third cutting lines (24) and fourth cutting lines (25) with equal lengths and in an arc shape above the second calf circumference upper process line. Both ends of the third cutting line (24) and the fourth cutting line (25) intersect with the second inner sewing line (22) and the second outer sewing line (21), and the third cutting line (24) and the fourth cutting line (25) are mirror-symmetrical; Cut the semi-finished rear trouser piece (20) along the third cutting line (24) and the fourth cutting line (25), and sew the third cutting line (24) and the fourth cutting line (25) together to form a second sewing line (02) and obtain the rear trouser piece sample.

4. The manufacturing method of a pair of sweatpants according to claim 3, characterized in that, Including the production of the crotch splicing piece sample (30); the front trouser piece semi-finished product (10) has a first inner seam line (12), the first inner seam line (12) has a front crotch arc line (121) and a first splicing line (122) intersecting with the front crotch arc line (121), and the first splicing line (122) is located above the first calf circumference process line (13); the second inner seam line (22) has a rear crotch arc line (221) and a second splicing line (222) intersecting with the rear crotch arc line (221), and the second splicing line (222) is located above the second calf circumference process line (23); The production of the crotch splicing piece sample (30) includes the following steps: Cut out the crotch splicing piece sample (30) on the fabric. The crotch splicing piece sample (30) is provided with two first splicing parts (31). The two first splicing parts (31) are connected as a whole by a first symmetry line (32) and are symmetric about the first symmetry line (32). The first splicing part (31) is provided with a third splicing line (311) and a fourth splicing line (312). One end of the third splicing line (311) and one end of the fourth splicing line (312) respectively intersect with the two ends of the first symmetry line (32), and the other end of the third splicing line (311) and the other end of the fourth splicing line (312) intersect; the third splicing line (311) is suitable for sewing with the first splicing line (122), and the fourth splicing line (312) is suitable for sewing with the second splicing line (222).

5. The manufacturing method of a pair of sweatpants according to claim 4, characterized in that, Including the production of the trouser pocket splicing piece sample (40); The first outer seam line (11) has a fifth splicing line (114) located between the waist and the thigh circumference. The fifth splicing line (114) is located above the first line segment (111) and intersects with the first line segment (111). The second outer seam line (21) has a sixth splicing line (211) located between the waist and the thigh circumference; the rear trouser piece semi-finished product (20) also has a second waist process line (29); The production of the trouser pocket splicing piece sample (40) includes the following steps; Cut out the trouser pocket splicing piece sample (40) on the fabric. The trouser pocket splicing piece sample (40) has a seventh splicing line (41), an eighth splicing line (42) and a ninth splicing line (43) connected end to end. The seventh splicing line (41) is suitable for sewing with the fifth splicing line (114), and the ninth splicing line (43) is suitable for sewing with the sixth splicing line (211); when the seventh splicing line (41) is sewn with the fifth splicing line (114) and the ninth splicing line (43) is sewn with the sixth splicing line (211), the ninth splicing line (43) and the first line segment (111) are on the same straight line, and the eighth splicing line (42) and the second waist process line (29) of the rear trouser piece semi-finished product (20) are on the same straight line.

6. The manufacturing method of a pair of sweatpants according to claim 5, characterized in that, It also includes the production of the waistband sample (50); The first outer seam line (11) has a tenth splicing line (115) located above the fifth splicing line (114). The two ends of the tenth splicing line (115) are respectively connected to the waist line of the front trouser piece semi-finished product (10) and the fifth splicing line (114); The production of the waistband sample (50) includes the following steps: Cut out the waistband sample (50) from the fabric. The waistband sample (50) is provided with two second splicing parts (51). The two second splicing parts (51) are symmetrical about the second symmetry line (52) and are connected into one body through the second symmetry line (52). The second splicing part (51) has an eleventh splicing line (511), a twelfth splicing line (512), and a thirteenth splicing line (513) connected in sequence. The eleventh splicing line (511) is suitable for sewing with the tenth splicing line (115), the twelfth splicing line (512) is suitable for sewing with the eighth splicing line (42), and the thirteenth splicing line (513) is suitable for sewing with the second waist process line (29) of the rear trouser piece semi-finished product (20). Among them, the included angle between the eleventh splicing line (511) and the twelfth splicing line (512) is equal to the included angle between the tenth splicing line (115) and the eighth splicing line (42).

7. The manufacturing method of a pair of sweatpants according to claim 6, characterized in that, Sew the front trouser piece sample, the rear trouser piece sample, the trouser pocket splicing piece sample (40), the crotch splicing piece sample (30), and the waistband sample (50) together along the corresponding sewing lines to obtain the sweatpants.

8. The manufacturing method of a pair of sweatpants according to claim 7, characterized in that, The sweatpants are prepared from a stretch fabric. The spandex content in the stretch fabric is 10wt%-15wt%. The elastic elongation rate of the elastic fabric is 110%-130%, and the elastic recovery rate is 94%-97%.

9. A pair of sweatpants, characterized in that, It is made by using the production method of the sweatpants described in claim 7 or 8.

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