Woven fabric production and preparation process for sanitary napkins

Abstract

The invention relates to the field of female health care products, in particular to a production and preparation process of woven cloth for sanitary towels. According to the woven fabric for the sanitary napkin, water-repellent modified bamboo fibers serve as raw materials of transverse weft yarns, wormwood fibers serve as raw materials of longitudinal warp yarns, the woven fabric is prepared through raw material selection, treatment before weaving, spinning, warping and slashing, weaving and performance inspection, and a sizing device and a loom special for production of the woven fabric are further arranged; the woven fabric provided by the invention can realize transverse water repellency and longitudinal hydrophilicity, when the woven fabric is used on the surface layer of the sanitary towel, menstrual flow can be greatly diffused in the longitudinal direction and is not absorbed in the transverse direction after passing through the menstrual flow, meanwhile, the risk of reverse osmosis can be reduced, and the surface layer cannot be moist due to the fact that the surface layer absorbs a large amount of water even in a long-time process; the skin discomfort and the risk of bacterium breeding are reduced, and the use comfort and safety are improved.

Description

Technical Field

[0001] The invention relates to the field of female hygiene care products, and in particular to a production and preparation process of woven fabrics for sanitary napkins. Background Art

[0002] In modern life, sanitary napkins are indispensable hygiene care products for women during their menstrual period. With the upgrading of consumption and the improvement of people's health awareness, the market's requirements for the quality and performance of sanitary napkins are increasing. Consumers are no longer satisfied with the basic absorption function, but are also paying more attention to the comprehensive experience of comfort, breathability, safety, etc. during use; according to market research data, the global sanitary napkin market size is continuing to grow steadily, and this growth trend has also prompted companies to continuously invest in research and development to launch better products.

[0003] However, with the continuous growth of the market, most sanitary napkins on the market are made of non-woven fabrics. Non-woven fabrics have the advantages of convenient processing and low cost, but they have defects that are difficult to ignore. The fiber arrangement in the internal structure of non-woven fabrics is relatively messy, and the internal pore distribution is uneven, resulting in poor air permeability. During the long-term use of women's menstrual period, the heat and moisture generated in the private parts are difficult to dissipate quickly, making the private parts stuffy and humid, which not only affects the comfort of sanitary napkins, but also may cause serious consequences such as bacterial breeding and infection in the private parts. At the same time, due to the production process characteristics of non-woven fabrics, the surface of non-woven fabrics is often not smooth enough, and hard nodes are easily formed between fibers. When in contact with the delicate skin of women's private parts, the friction coefficient is large, which can easily cause skin discomfort. Especially for women with sensitive skin, allergic symptoms such as redness and itching often occur after use, and may even cause inflammation of women's private parts, which is not conducive to women's private health. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and provide a production and preparation process of woven fabrics for sanitary napkins. The woven fabric provided by the present invention can achieve transverse water repellency and longitudinal hydrophilicity, so that when menstrual blood flows through the surface layer of the sanitary napkin, it diffuses greatly in the longitudinal direction and is not absorbed in the transverse direction, achieving the effect of point seepage.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A production and preparation process for woven fabrics for sanitary napkins, comprising the following steps: S1. Raw material selection: select fibers with good water repellency as the transverse yarns of the woven fabric, and select fibers with good hydrophilicity as the longitudinal yarns of the woven fabric; S2, pre-weaving treatment, cleaning and drying the selected fibers to remove impurities and moisture on the fiber surface to ensure the purity and dryness of the fibers; S3, spinning, preparing uniform cotton rolls by opening, removing impurities and mixing the processed fiber raw materials, combing and drawing the cotton rolls, and then preparing warp yarns and weft yarns that meet fabric requirements; S4, warping and sizing, arranging the obtained warp yarns in parallel and evenly in accordance with the fabric requirements and winding them on the warp beam, and sizing the warp yarns after warping to improve the strength and other properties of the warp yarns; S5, weaving, sending the prepared warp yarn and weft yarn into a loom for weaving to make a woven cloth; S6. Performance inspection: The woven fabric is tested for transverse water repellency and longitudinal hydrophilicity, and its quality and other characteristics are inspected.

[0006] The woven fabric on the surface layer of the sanitary napkin is water-repellent laterally and hydrophilic vertically, so that after the menstrual blood flows through the surface layer of the sanitary napkin, it diffuses widely in the longitudinal direction and is not absorbed in the transverse direction, achieving a point-seepage effect, allowing the menstrual blood to quickly penetrate into the absorption layer inside the sanitary napkin, preventing the menstrual blood from accumulating on the surface layer of the sanitary napkin and keeping the surface layer relatively dry; at the same time, its lateral water-repellency can also prevent the menstrual blood absorbed by the absorption layer from easily penetrating back into the surface layer, reducing the dampness and stickiness of the surface layer and improving the comfort of use.

[0007] Preferably, in step S1, water-repellent modified bamboo fiber is selected as the fiber raw material for making the transverse yarn, and wormwood fiber with good hydrophilic property is selected as the fiber raw material for making the longitudinal yarn. In step S5, the ratio of the transverse and longitudinal yarns is 2:1 or 3:1. The transverse fiber uses water-repellent modified bamboo fiber, and the contact angle of water on the fiber surface is increased, so that it is difficult for water to easily penetrate into the fiber, so that the fiber surface can remain relatively dry in a relatively humid environment. The modified bamboo fiber retains the original soft feel of natural bamboo fiber, and the fiber texture is fine. It will feel comfortable when in contact with the female private parts, and will not It does not irritate the skin. At the same time, the modified bamboo fiber has good air permeability, so that the female private parts will not feel stuffy during use, and can keep the private parts dry for a long time; the longitudinal fibers use wormwood fibers, which are rich in hydrophilic groups. These groups can form hydrogen bonds with water molecules, so that the wormwood fibers can quickly absorb moisture, so that the wormwood fiber woven fabric can quickly absorb moisture in the menstrual blood, and wormwood fibers also have good antibacterial and antibacterial properties, which can effectively reduce bacterial growth and reduce the risk of odor or inflammation due to bacterial reproduction, which helps to maintain the hygiene and health of women's private parts.

[0008] Preferably, the sizing yarn in step S4 is also equipped with a sizing device, which includes a sizing base, and a warping table and a weaving shaft table are respectively arranged at both ends of the sizing base, and a plurality of warping shafts for winding the warp yarns after warping are arranged in parallel on the warping table, and a plurality of weaving shafts for winding the warp yarns after sizing are correspondingly arranged in parallel on the weaving shaft table, and a sizing box is also arranged in the middle position of the sizing base; the warp yarns after warping will bypass the warping shafts and enter the sizing box for sizing treatment, and the warp yarns will be wound on the weaving shafts after sizing and wait for weaving on the machine; after the warp yarns are sizing treatment, a tough sizing film can be formed on the surface of the warp yarns, which can effectively improve the strength of the warp yarns, so that they can better withstand the external force in the weaving process during the subsequent weaving process, thereby reducing the weaving breakage rate and improving the weaving efficiency.

[0009] Preferably, a slurry inlet is provided at the top of the slurry box, and a slurry outlet is provided at the middle of the bottom; a slurry tank for storing slurry is also provided below the position corresponding to the slurry outlet on the sizing base; a slurry pump for conveying the slurry to the slurry box is provided in the slurry tank, and the slurry pump is connected to the slurry inlet through a conveying pipe; a slurry tank for storing slurry is installed on the sizing base, and the slurry pump in the slurry tank can convey the slurry in the tank to the slurry box through the conveying pipe; after the warp is sized in the slurry box, excess slurry will fall into the bottom of the slurry box and flow back to the slurry tank through the slurry outlet at the bottom, and the cycle continues. This structural design greatly improves the use efficiency of the slurry, and also improves the efficiency of sizing the warp.

[0010] Preferably, the sizing box is provided with warp grooves on both sides opposite to the warping beam and the weaving beam for the warp to enter and exit the sizing box, and a slurry sprayer and a slurry pressing roller are also provided inside the slurry soaking box; after the warp is fed into the slurry soaking box, the slurry sprayer inside the box will spray it so that the warp can fully absorb the slurry, and the warp after sizing will pass through the slurry pressing roller, which can squeeze the warp so that the slurry can penetrate into the warp yarn more evenly, and the squeezing of the slurry pressing roller can also squeeze out excess slurry moisture inside the warp.

[0011] Preferably, the shotcrete machine is provided with a mounting bracket for being installed in the immersion box, the mounting bracket is connected to the shotcrete box, a shotcrete inlet is provided at the top of the shotcrete box and is connected to the immersion inlet, and a plurality of parallel arranged shotcrete heads are also provided at the bottom of the shotcrete box; the shotcrete box is installed inside the box body of the immersion box through the mounting bracket, the shotcrete inlet provided at the top of the shotcrete box is connected to the immersion inlet of the immersion box, the slurry is transported to the immersion inlet by a immersion pump and then flows into the shotcrete box through the inlet, and a plurality of shotcrete heads for spraying the slurry are installed at the bottom of the shotcrete box, and the slurry can be evenly sprayed on the warp threads fed in under the action of the shotcrete heads, so that the warp threads can fully absorb the slurry.

[0012] Preferably, the slurry squeezing roller comprises a slurry squeezing active roller and a slurry squeezing driven roller, the slurry squeezing active roller is located on an axis outside the slurry immersion box and is provided with an active synchronous wheel and a driving synchronous wheel in sequence, the slurry squeezing driven roller is located on an axis outside the slurry immersion box and is provided with a driven synchronous wheel, the driven synchronous wheel and the active synchronous wheel are aligned in the upper and lower positions, and reversing wheels are symmetrically provided on both sides above the driven synchronous wheel; the active synchronous wheel and the two reversing wheels are connected by a double-sided synchronous belt, the inner side of the double-sided synchronous belt bypasses the active synchronous wheel and the two reversing wheels and meshes with them, and the outer side of the double-sided synchronous belt bypasses the driven synchronous wheel and meshes with them; the slurry squeezing roller can squeeze the warp thread, so that the slurry The liquid can penetrate into the warp yarn more evenly, and the squeezing of the sizing roller can squeeze out the excess slurry water inside the warp yarn. The sizing roller drives the lower sizing active roller to rotate through the driving motor. The rotation of the sizing active roller drives the active synchronous wheel on the shaft to rotate. A double-sided synchronous belt is installed on the active synchronous wheel. The inner side of the double-sided synchronous belt bypasses the active synchronous wheel and two reversing wheels and meshes with them. Under the action of the two reversing wheels, the outer side of the double-sided synchronous belt bypasses the driven synchronous wheel and meshes with it. Therefore, the rotation of the active synchronous wheel drives the double-sided synchronous belt to move together. The transmission of the double-sided synchronous belt can ensure that the active synchronous wheel and the driven synchronous wheel rotate synchronously but in opposite directions, thereby completing the squeezing of the warp yarn after sizing.

[0013] Preferably, a driving motor is also provided on the sizing base for controlling the movement of the sizing roller, a motor driving wheel is provided on the shaft of the driving motor, the motor driving wheel and the driving synchronous wheel are aligned up and down, and the motor driving wheel and the driving synchronous wheel are connected by a driving belt; a driving motor is installed on the sizing base, and the motor driving wheel on the driving motor is connected to the driving synchronous wheel on the sizing active roller by a driving belt. When the driving motor rotates to drive the motor driving wheel to rotate, the driving synchronous wheel on the sizing active roller is driven to rotate together under the action of the driving belt. Therefore, the rotation of the driving motor realizes the overall rotation of the sizing roller, so that the sizing roller can squeeze the warp threads that have been sizing, so as to achieve a better sizing effect of the warp threads.

[0014] Preferably, the weaving in step S5 is further equipped with a loom, which includes a loom base and a warp beam table, on which a number of warp beams for winding warp threads are arranged in parallel, and the warp threads on the warp beams will pass through the heald mechanism on the loom base, and the lifting of the heald mechanism will separate the warp threads into two groups staggered up and down to form a shuttle mouth, and the warp threads will pass through the beating-up mechanism after passing through the heald mechanism, and the beating-up mechanism is provided with a weft beam for winding weft threads, and the weft threads on the weft beam are connected to the flying shuttle; after sizing, the warp threads will be transported to the warp beam of the loom and Winding, the warp threads on the warp axis pass through the heald mechanism on the base of the loom. The heald mechanism can divide the warp threads into two groups that are staggered up and down, and the movement of the heald mechanism can drive the warp threads to stagger up and down. The warp threads are staggered up and down to form a shed. The flying shuttle of the loom is connected to the weft threads on the weft axis, and the flying shuttle will drive the weft threads to shuttle back and forth between the staggered sheds to make reciprocating motion, so that the weft threads and the warp threads are continuously staggered for warp and weft interweaving. After that, the weft threads are continuously pushed toward the direction of the weft under the action of the beating mechanism, so that the weft threads and the warp threads are tightly interwoven together, thereby completing the weaving process.

[0015] Preferably, a transmission roller for pulling and driving the cloth is provided on the loom base, and a tensioning roller for providing tensioning force to the cloth is also provided obliquely below the transmission roller. After the cloth passes around the tensioning roller, it will pass through the smoothing roller on the loom base, and after being flattened by the smoothing roller, it will be wound and collected by the cloth winding roller at the tail; the transmission roller can send the woven cloth backwards, and at the same time can provide a certain traction to the warp thread, so that the warp thread is driven more smoothly during the weaving process, and the tensioning roller obliquely below the transmission roller can provide a certain tensioning force to the cloth, so that the fabric itself has a certain tension during the weaving process, and the taut fabric is smooth. The shed formed by the warp threads is more regular, allowing the shuttle to introduce the weft threads into the shed more quickly and accurately. The warp threads and weft threads with uniform tension can be straightened quickly and orderly, reducing weaving failures and improving the stability of the fabric. The smoothing roller of the loom can level the fabric after weaving. Due to the change in yarn tension during the weaving process, the surface of the fabric may be uneven and flat. Surface leveling treatment of the fabric can effectively reduce defects such as wrinkles and ripples, making the appearance of the fabric smoother and flatter. At the same time, it can also make the yarn arrangement of the fabric more neat, thereby improving the overall strength of the fabric.

[0016] In summary, the beneficial effects of the present invention are as follows: the woven fabric for sanitary napkins provided by the present invention has the characteristics of transverse water repellency and longitudinal hydrophilicity, so that when menstrual blood flows through the surface layer of the sanitary napkin, it diffuses greatly in the longitudinal direction and is not absorbed in the transverse direction, achieving the effect of point seepage; after flowing through the surface layer of the sanitary napkin, the menstrual blood can quickly penetrate into the absorption layer inside the sanitary napkin, so that the menstrual blood will not accumulate on the surface layer of the sanitary napkin, keeping the surface layer relatively dry, and at the same time, its transverse water repellency can also make it difficult for the menstrual blood absorbed by the absorption layer to reversely penetrate into the surface layer, reducing the dampness and stickiness of the surface layer of the sanitary napkin, so that the surface layer of the sanitary napkin will remain relatively comfortable and dry when in contact with the private parts, and even during a long period of time, the surface layer will not become damp due to a large amount of water absorption, reducing the risk of skin discomfort and bacterial growth, and improving the comfort and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the sizing device of the present invention; Figure 2 It is a schematic diagram of the internal structure of the slurry dipping box of the present invention; Figure 3 It is a schematic structural diagram of a shotcrete machine of the present invention; Figure 4 It is a schematic diagram of the transmission structure of the squeezing roller of the present invention; Figure 5 It is a schematic diagram of the overall structure of the loom of the present invention; Figure 6 It is a schematic diagram of the loom process structure of the present invention.

[0018] Markings in the figure: 1-sizing device, 11-sizing base, 1101-warping table, 1102-weaving shaft table, 1103-warping beam, 1104-weaving beam, 12-sizing box, 1201-sizing inlet, 1202-slurry outlet, 1203-warp groove, 13-sizing tank, 1301-sizing pump, 1302-conveying pipe, 14-spraying machine, 1401-mounting bracket, 1402-spraying box, 1403-spraying inlet, 1404-spraying head, 15-slurry pressing roller, 151-slurry pressing active roller, 1511- Active synchronous wheel, 1512-driving synchronous wheel, 1513-double-sided synchronous belt, 152-slurrying driven roller, 1521-driven synchronous wheel, 1522-reversing wheel, 16-driving motor, 1601-motor driving wheel, 1602-driving belt, 2-loom, 201-loom base, 202-warp beam table, 203-warp beam, 204-heald mechanism, 205-beating mechanism, 206-weft beam, 207-flying shuttle, 208-transmission roller, 209-tensioning roller, 210-leveling roller, 211-cloth winding roller. DETAILED DESCRIPTION

[0019] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

[0020] The present invention will be described in detail below with reference to the accompanying drawings by way of embodiments.

[0021] Example 1

[0022] A production and preparation process for woven fabrics for sanitary napkins, comprising the following steps: S1. Raw material selection: select fibers with good water repellency as the transverse yarns of the woven fabric, and select fibers with good hydrophilicity as the longitudinal yarns of the woven fabric; S2, pre-weaving treatment, cleaning and drying the selected fibers to remove impurities and moisture on the fiber surface to ensure the purity and dryness of the fibers; S3, spinning, preparing uniform cotton rolls by opening, removing impurities and mixing the processed fiber raw materials, combing and drawing the cotton rolls, and then preparing warp yarns and weft yarns that meet fabric requirements; S4, warping and sizing, arranging the obtained warp yarns in parallel and evenly in accordance with the fabric requirements and winding them on the warp beam, and sizing the warp yarns after warping to improve the strength and other properties of the warp yarns; S5, weaving, sending the prepared warp yarn and weft yarn into a loom for weaving to make a woven cloth; S6. Performance inspection: The woven fabric is tested for transverse water repellency and longitudinal hydrophilicity, and its quality and other characteristics are inspected.

[0023] The woven fabric on the surface of the sanitary napkin is water-repellent laterally and hydrophilic vertically, so that after the menstrual blood flows through the surface of the sanitary napkin, it diffuses widely in the longitudinal direction and is not absorbed horizontally, achieving the effect of point penetration. The menstrual blood can quickly penetrate into the absorption layer inside the sanitary napkin, preventing the menstrual blood from accumulating on the surface of the sanitary napkin and keeping the surface relatively dry. At the same time, its lateral water-repellency can also make it difficult for the menstrual blood absorbed by the absorption layer to penetrate back into the surface layer, reducing the dampness and stickiness of the surface of the sanitary napkin, so that the surface of the sanitary napkin will remain relatively comfortable and dry when in contact with the private parts. Even during a long period of time, the surface layer will not become damp due to large amounts of water absorption, reducing skin discomfort and the risk of bacterial growth, and improving the comfort and safety of use.

[0024] In step S1, water-repellent modified bamboo fiber is selected as the fiber raw material for making the transverse yarn, and wormwood fiber with good hydrophilic performance is selected as the fiber raw material for making the longitudinal yarn. In step S5, the ratio of the transverse and longitudinal yarns is 2:1; the transverse fiber uses bamboo fiber that has been water-repellent modified, and the contact angle of water on the fiber surface is increased, making it difficult for water to easily penetrate into the fiber, so that the fiber surface can remain relatively dry in a relatively humid environment. The modified bamboo fiber retains the original soft feel of natural bamboo fiber, and the fiber texture is fine. It will feel comfortable when in contact with the female private parts, and will not cause skin damage. The modified bamboo fiber has good air permeability, so that the female private parts will not feel stuffy during use, and can keep the private parts dry for a long time; the longitudinal fiber uses wormwood fiber, which is rich in hydrophilic groups. These groups can form hydrogen bonds with water molecules, so that the wormwood fiber can quickly absorb moisture, so that the wormwood fiber woven fabric can quickly absorb moisture in the menstrual blood, and the wormwood fiber also has good antibacterial and antibacterial properties, which can effectively reduce bacterial growth and reduce the risk of odor or inflammation due to bacterial reproduction, which helps to maintain the hygiene and health of women's private parts.

[0025] Example 2

[0026] according to Figure 1 As shown, a woven fabric production and preparation process for sanitary napkins, the sizing yarn in step S4 is also equipped with a sizing device 1, the sizing device 1 includes a sizing base 11, and a warping table 1101 and a weaving shaft table 1102 are respectively arranged at both ends of the sizing base 11, a plurality of warping shafts 1103 for winding the warp yarns after warping are arranged in parallel on the warping table 1101, and a plurality of weaving shafts 1104 for winding the warp yarns after sizing are correspondingly arranged in parallel on the weaving shaft table 1102, and a sizing box 12 is also arranged in the middle position of the sizing base 11; the warp yarns after warping will bypass the warping shaft 1103 and enter the sizing box 12 for sizing treatment, and the warp yarns will be wound on the weaving shaft 1104 after sizing and wait for weaving on the machine, and a tough sizing film can be formed on the surface of the warp yarn after sizing treatment, which can effectively improve the strength of the warp yarn, so that it can better withstand the external force in the weaving process during the subsequent weaving process, thereby reducing the weaving breakage rate and improving the weaving efficiency.

[0027] according to Figure 1 , Figure 2As shown, a slurry inlet 1201 is provided at the top position of the slurry box 12, and a slurry outlet 1202 is opened at the middle position of the bottom, and a slurry tank 13 for storing slurry is also provided below the position corresponding to the slurry outlet 1202 on the sizing base 11, and a slurry pump 1301 for conveying the slurry to the slurry box 12 is provided in the slurry tank 13, and the slurry pump 1301 is connected to the slurry inlet 1201 through a conveying pipe 1302; a slurry tank 13 for storing slurry is installed on the sizing base 11, and the slurry pump 1301 in the slurry tank 13 can convey the slurry in the tank to the slurry box 12 through the conveying pipe 1302. After the warp is sizing in the slurry box 12, the excess slurry will fall into the bottom of the slurry box 12, and flow back to the slurry tank 13 through the slurry outlet 1202 at the bottom, and the cycle is repeated. This structural design greatly improves the use efficiency of the slurry, and also improves the efficiency of sizing the warp.

[0028] according to Figure 2 As shown, the slurry box 12 is provided with warp grooves 1203 on both sides opposite to the warping beam 1103 and the weaving beam 1104 for the warp to enter and exit the slurry box 12, and a sprayer 14 and a slurry pressing roller 15 are also arranged inside the slurry box 12; after the warp is fed into the slurry box 12, the sprayer 14 inside the box will spray it so that the warp can fully absorb the slurry, and the warp after sizing will pass through the slurry pressing roller 15, which can squeeze the warp so that the slurry can penetrate into the warp yarn more evenly, and the squeezing of the slurry pressing roller 15 can also squeeze out excess slurry moisture inside the warp.

[0029] according to Figure 3 As shown, the shotcrete machine 14 is provided with a mounting bracket 1401 for being installed in the immersion box 12, a shotcrete box 1402 is connected to the mounting bracket 1401, a shotcrete inlet 1403 is provided at the top of the shotcrete box 1402 and is communicated with the immersion inlet 1201, and a plurality of parallelly arranged shotcrete heads 1404 are also provided at the bottom of the shotcrete box 1402; the shotcrete box 1402 is installed inside the box body of the immersion box 12 through the mounting bracket 1401, the shotcrete inlet 1403 provided at the top of the shotcrete box 1402 is communicated with the immersion inlet 1201 of the immersion box 12, the slurry is transported to the immersion inlet 1201 by the immersion pump 1301, and then flows into the shotcrete box 1402 through the inlet, and a plurality of shotcrete heads 1404 for spraying the slurry are installed at the bottom of the shotcrete box 1402, and the slurry can be evenly sprayed on the warp threads fed in under the action of the shotcrete heads 1404, so that the warp threads can absorb the slurry more fully.

[0030] according to Figure 4As shown, the slurry squeezing roller 15 includes a slurry squeezing active roller 151 and a slurry squeezing driven roller 152. The slurry squeezing active roller 151 is located on an axis outside the slurry soaking box 12 and is provided with an active synchronous wheel 1511 and a driving synchronous wheel 1512 in sequence. The slurry squeezing driven roller 152 is located on an axis outside the slurry soaking box 12 and is provided with a driven synchronous wheel 1521. The driven synchronous wheel 1521 and the active synchronous wheel 1511 are aligned in the upper and lower positions. Reversing wheels 1522 are symmetrically provided on both sides above the driven synchronous wheel 1521. The active synchronous wheel 1511 and the two reversing wheels 1522 are connected by a double-sided synchronous belt 1513. The inner side of the double-sided synchronous belt 1513 bypasses the active synchronous wheel 1511 and the two reversing wheels 1522 and meshes with them, and the outer side of the double-sided synchronous belt 1513 bypasses the driven synchronous wheel 1521 and meshes with them. The slurry squeezing roller 15 can squeeze the warp so that the slurry can penetrate more evenly. The squeezing roller 15 can squeeze out excess slurry moisture inside the warp yarn. The squeezing roller 15 drives the squeezing active roller 151 of the lower layer to rotate through the driving motor 16. The rotation of the squeezing active roller 151 drives the active synchronous wheel 1511 on the shaft to rotate. The active synchronous wheel 1511 is equipped with a double-sided synchronous belt 1513. The inner side of the double-sided synchronous belt 1513 bypasses the active synchronous wheel 1511 and the two reversing wheels 1522 and meshes with them. Under the action of the two reversing wheels 1522, the outer side of the double-sided synchronous belt 1513 bypasses the driven synchronous wheel 1521 and meshes with it. Therefore, the rotation of the active synchronous wheel 1511 drives the double-sided synchronous belt 1513 to move together. The transmission of the double-sided synchronous belt 1513 can ensure that the active synchronous wheel 1511 and the driven synchronous wheel 1521 rotate synchronously but in opposite directions, thereby completing the squeezing of the warp yarn after sizing.

[0031] according to Figure 4 As shown, a driving motor 16 is also provided on the sizing base 11 for controlling the movement of the sizing roller 15, and a motor driving wheel 1601 is provided on the shaft of the driving motor 16, and the motor driving wheel 1601 is aligned with the driving synchronous wheel 1512 in the upper and lower directions, and the motor driving wheel 1601 and the driving synchronous wheel 1512 are connected by a driving belt 1602; a driving motor 16 is installed on the sizing base 11, and the motor driving wheel 1601 on the driving motor 16 is connected with the driving synchronous wheel 1512 on the sizing active roller 151 by a driving belt 1602. When the driving motor 16 rotates to drive the motor driving wheel 1601 to rotate, the driving synchronous wheel 1512 on the sizing active roller 151 is driven to rotate together under the action of the driving belt 1602. Therefore, the rotation of the driving motor 16 realizes the overall rotation of the sizing roller 15, so that the sizing roller 15 can squeeze the warp thread that has been sizing, so that the sizing effect of the warp thread is better.

[0032] Example 3

[0033] according to Figure 5 , Figure 6 As shown, the weaving of step S5 is also equipped with a loom 2, which includes a loom base 201 and a warp beam platform 202. A number of warp beams 203 for winding warp threads are arranged in parallel on the warp beam platform 202. The warp threads on the warp beams 203 will pass through the heald mechanism 204 on the loom base 201. The lifting of the heald mechanism 204 will separate the warp threads into two groups that are staggered up and down to form a shed. After passing through the heald mechanism 204, the warp threads will pass through the beating-up mechanism 205. The beating-up mechanism 205 is provided with a weft axis 206 for winding weft threads. The weft threads on the weft axis 206 are connected to the shuttle 207. After sizing, the warp threads will be transported to the warp axis 203 of the loom 2. The warp threads on the warp shaft 203 pass through the heald mechanism 204 on the loom base 201. The heald mechanism 204 can divide the warp threads into two groups that are staggered up and down, and the movement of the heald mechanism 204 can drive the warp threads to stagger up and down. The staggering of the warp threads up and down will form a shed. The flying shuttle 207 of the loom 2 is connected with the weft threads on the weft shaft 206. The flying shuttle 207 will drive the weft threads to shuttle back and forth between the staggered sheds to make reciprocating motion, so that the weft threads and the warp threads are continuously staggered to interweave the warp and weft. After that, the weft threads are continuously pushed toward the direction of the weft under the action of the beating mechanism 205, so that the weft threads and the warp threads are tightly interwoven together, thereby completing the weaving process.

[0034] according to Figure 6 As shown, a transmission roller 208 for pulling and driving the woven cloth is arranged on the loom base 201, and a tensioning roller 209 for providing tension to the woven cloth is arranged obliquely below the transmission roller 208. After the woven cloth passes around the tensioning roller 209, it passes through the leveling roller 210 on the loom base 201, and after being leveled by the leveling roller 210, it is wound and collected by the cloth winding roller 211 at the tail; the transmission roller 208 can send the woven cloth backwards, and at the same time can provide a certain traction to the warp, so that the warp is driven more smoothly during the weaving process, and the tensioning roller 209 obliquely below the transmission roller 208 can provide a certain tension to the cloth, so that the fabric itself has a certain tension during the weaving process. With a certain tension, the shed formed by the taut warp is more regular, so that the shuttle 207 can introduce the weft into the shed more quickly and accurately, and the warp and weft with uniform tension can be straightened quickly and orderly, reducing weaving failures and improving the stability of the fabric; the smoothing roller 210 of the loom 2 can level the fabric after weaving. Due to the change in yarn tension during the weaving process, the surface of the fabric may be uneven and uneven. After the surface leveling treatment of the fabric, the defects such as wrinkles and ripples of the fabric can be effectively reduced, making the appearance of the fabric smoother and flatter, and at the same time, the yarn arrangement of the fabric can be more neat, thereby improving the overall strength of the fabric.

Claims

1. A process for producing and preparing woven fabrics for sanitary napkins, characterized in that: The following steps are involved: S1. Raw material selection: select fibers with good water repellency as the transverse yarns of the woven fabric, and select fibers with good hydrophilicity as the longitudinal yarns of the woven fabric; S2, pre-weaving treatment, cleaning and drying the selected fibers to remove impurities and moisture on the fiber surface to ensure the purity and dryness of the fibers; S3, spinning, preparing uniform cotton rolls by opening, removing impurities and mixing the processed fiber raw materials, combing and drawing the cotton rolls, and then preparing warp yarns and weft yarns that meet fabric requirements; S4, warping and sizing, arranging the obtained warp yarns in parallel and evenly in accordance with the fabric requirements and winding them on the warp beam, and sizing the warp yarns after warping to improve the strength and other properties of the warp yarns; S5, weaving, sending the prepared warp yarn and weft yarn into a loom for weaving to make a woven cloth; S6. Performance inspection: The woven fabric is tested for transverse water repellency and longitudinal hydrophilicity, and its quality and other characteristics are inspected.

2. The process for producing a woven fabric of a sanitary napkin according to claim 1, characterized in that: In step S1, water-repellent modified bamboo fiber is selected as the fiber raw material for making transverse yarns, and wormwood fiber with good hydrophilic property is selected as the fiber raw material for making longitudinal yarns. In step S5, the ratio of transverse yarn to longitudinal yarn in weaving is 2:1 or 3:

1.

3. The process for producing a woven fabric of a sanitary napkin according to claim 1, characterized in that: The sizing device (1) in step S4 is also equipped with a sizing device (1), the sizing device (1) comprising a sizing base (11), a warping table (1101) and a weaving shaft table (1102) are respectively arranged at two ends of the sizing base (11), a plurality of warping shafts (1103) for winding the warp yarns after warping are arranged in parallel on the warping table (1101), a plurality of weaving shafts (1104) for winding the warp yarns after sizing are correspondingly arranged in parallel on the weaving shaft table (1102), and a sizing box (12) is also arranged in the middle of the sizing base (11).

4. The process for producing a woven fabric of a sanitary napkin according to claim 3, characterized in that: The slurry soaking box (12) is provided with a slurry soaking inlet (1201) at the top position, and a slurry outlet (1202) is provided at the middle position of the bottom; a slurry soaking tank (13) for storing slurry soaking liquid is also provided below a position on the slurrying base (11) corresponding to the slurry outlet (1202); a slurry soaking tank (13) for conveying the slurry soaking liquid into the slurry soaking box (12) is provided with a slurry soaking pump (1301) for conveying the slurry soaking liquid into the slurry soaking box (12); and the slurry soaking pump (1301) is connected to the slurry soaking inlet (1201) via a conveying pipe (1302).

5. The process for producing and preparing a woven fabric of a sanitary napkin according to claim 4, characterized in that: Warp grooves (1203) are provided on two sides of the slurry box (12) opposite to the warping beam (1103) and the weaving beam (1104) for the warp threads to enter and exit the slurry box (12). A slurry spraying machine (14) and a slurry pressing roller (15) are also provided inside the slurry box (12).

6. The process for producing and preparing a woven fabric of a sanitary napkin according to claim 5, characterized in that: The shotcrete machine (14) is provided with a mounting bracket (1401) for being installed in the grouting box (12); the mounting bracket (1401) is connected to a shotcrete box (1402); a shotcrete inlet (1403) is provided at the top of the shotcrete box (1402) and is connected to the grouting inlet (1201); and a plurality of parallelly arranged shotcrete heads (1404) are also provided at the bottom of the shotcrete box (1402).

7. The process for producing and preparing a woven fabric of a sanitary napkin according to claim 5, characterized in that: The grouting roller (15) comprises a grouting active roller (151) and a grouting driven roller (152); the grouting active roller (151) is located on an axis outside the grouting box (12) and is provided with an active synchronous wheel (1511) and a driving synchronous wheel (1512) in sequence; the grouting driven roller (152) is located on an axis outside the grouting box (12) and is provided with a driven synchronous wheel (1521); the upper and lower positions of the driven synchronous wheel (1521) and the active synchronous wheel (1511) are aligned. The driven synchronous wheel (1521) is symmetrically provided with reversing wheels (1522) on both sides above the driven synchronous wheel (1521); the driving synchronous wheel (1511) and the two reversing wheels (1522) are connected via a double-sided synchronous belt (1513); the inner side of the double-sided synchronous belt (1513) bypasses the driving synchronous wheel (1511) and the two reversing wheels (1522) and meshes with them, and the outer side of the double-sided synchronous belt (1513) bypasses the driven synchronous wheel (1521) and meshes with them.

8. The process for producing and preparing a woven fabric of a sanitary napkin according to claim 7, characterized in that: The sizing base (11) is also provided with a driving motor (16) for controlling the movement of the sizing roller (15); a motor driving wheel (1601) is provided on the shaft of the driving motor (16); the motor driving wheel (1601) and the driving synchronous wheel (1512) are aligned vertically; the motor driving wheel (1601) and the driving synchronous wheel (1512) are connected via a driving belt (1602).

9. The process for producing a woven fabric of a sanitary napkin according to claim 1, characterized in that: The weaving in step S5 is also equipped with a loom (2), the loom (2) comprising a loom base (201) and a warp beam platform (202), a plurality of warp beams (203) for winding warp threads are arranged in parallel on the warp beam platform (202), the warp threads on the warp beams (203) will pass through a heald mechanism (204) on the loom base (201), the heald mechanism (204) is raised and lowered to separate the warp threads into two groups that are staggered up and down to form a shed, and the warp threads will pass through a beating-up mechanism (205) after passing through the heald mechanism (204), the beating-up mechanism (205) being provided with a weft axis (206) for winding weft threads, and the weft threads on the weft axis (206) are connected to a shuttle (207).

10. The process for producing a woven fabric of a sanitary napkin according to claim 9, characterized in that: A drive roller (208) for pulling and driving the woven cloth is arranged on the loom base (201), and a tensioning roller (209) for providing tensioning force to the woven cloth is also arranged obliquely below the drive roller (208); after the woven cloth passes around the tensioning roller (209), it passes through a leveling roller (210) on the loom base (201), and after being leveled by the leveling roller (210), it is wound up and collected by a cloth winding roller (211) at the rear.

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