CN115652526A - Bionic wrinkled non-woven fabric and manufacturing method thereof - Google Patents
Bionic wrinkled non-woven fabric and manufacturing method thereof Download PDFInfo
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- CN115652526A CN115652526A CN202211151285.XA CN202211151285A CN115652526A CN 115652526 A CN115652526 A CN 115652526A CN 202211151285 A CN202211151285 A CN 202211151285A CN 115652526 A CN115652526 A CN 115652526A
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Abstract
The invention relates to a bionic wrinkle non-woven fabric and a manufacturing method thereof, wherein the manufacturing method comprises a carding step, a lapping step, a pre-needling step, a spunlacing step and a drying step, the conveying speed, the pre-needling conveying speed and the output speed of a first fiber web, a second fiber web and a third fiber web are pulled are changed in the lapping step and the pre-needling step, so that wrinkles are formed on the surface of at least one of the first fiber web, the second fiber web and the third fiber web, and meanwhile, the overlapped fiber web with the wrinkles formed is reinforced under the spunlacing step and the drying step, namely the wrinkles on the surface of the overlapped fiber web are reinforced, so that the bionic wrinkle non-woven fabric with wrinkle appearance is obtained.
Description
Technical Field
The invention relates to the field of non-woven fabric production, in particular to a bionic fold non-woven fabric and a manufacturing method thereof.
Background
In the current market, the existing fabric has single texture, and plain texture, pearl texture, EF texture and the like are common, so that the layering of the fabric is enhanced by adding a wrinkle design on the fabric in the market. However, the realization mode of the grains on the fabric is that the corresponding grains are basically engraved on the spunlace roller, and then the spunlace process is adjusted to transfer the grains to the fabric, so that the operation is troublesome, meanwhile, in the realization of the wrinkle design of the fabric, a plurality of components are required to be added in the conventional process, a plurality of steps are required to be completed manually, and the efficiency is low.
Disclosure of Invention
The invention provides a bionic wrinkle non-woven fabric and a manufacturing method thereof, aiming at forming a fabric with different concave-convex sizes and wrinkle appearance at high efficiency.
According to a first aspect, an embodiment provides a bionic crimped non-woven fabric, which comprises three layers of non-woven fabrics which are distributed in a stacked manner and fixedly entangled, wherein the three layers of non-woven fabrics comprise two layers of all-cotton spunlace non-woven fabrics and polylactic acid spunlace non-woven fabrics which are entangled and fixed between the two layers of all-cotton non-woven fabrics; at least two of the three layers of non-woven fabrics are overlapped at different conveying speeds and/or different pre-needling speeds so as to form a corrugated structure on the surface of at least one layer of non-woven fabric.
In one embodiment, the spun lace nonwoven fabric comprises 25-50g of all-cotton spun lace nonwoven fabric and 10-35g of polylactic acid spun lace nonwoven fabric.
According to a second aspect, an embodiment provides a method for manufacturing a bionic crimped non-woven fabric, comprising the following steps:
carding, wherein cotton fibers and polylactic acid fibers are respectively carded into a single fiber state;
lapping, namely lapping cotton fibers in a single fiber state into a fluffy net structure in an overlapping mode to obtain a first fiber net and a second fiber net respectively; overlapping and paving polylactic acid fibers in a single fiber state into a fluffy net structure to obtain a third fiber net; transporting the first web, the second web, and the third web at a first transport speed, a second transport speed, and a third transport speed, respectively, wherein at least two of the first transport speed, the second transport speed, and the third transport speed are different;
pre-needling, namely pre-treating the first fiber web, the second fiber web and the third fiber web from a dry state into a wet state fiber web, and simultaneously drawing the first fiber web, the second fiber web and the third fiber web at a first pre-needling conveying speed, a second pre-needling conveying speed and a third pre-needling conveying speed respectively; the first pre-needling transportation speed, the second pre-needling transportation speed and the third pre-needling transportation speed respectively form speed differences with the corresponding first transportation speed, second transportation speed and third transportation speed; then the first fiber web, the second fiber web and the third fiber web are drawn by the first output speed, the second output speed and the third output speed, so that the first fiber web, the third fiber web and the second fiber web are sequentially stacked to form a laminated fiber web; wherein at least two of the first, second and third output speeds are different;
carrying out spunlace, namely carrying out spunlace entanglement reinforcement on the laminated fiber web;
and (4) drying, namely drying the fiber web reinforced by the spunlace entanglement to obtain the bionic fold non-woven fabric.
In one embodiment, the drying device further comprises a hot roller, wherein the hot roller is positioned on the conveying path after the melting and shrinking of the fiber web in the drying step.
In one embodiment, the step of pretreating the first, second and third webs from a dry state to a wet state comprises applying a pre-needling pressure of (0.2-0.5) 10 square meters per square meter of web 5 And (4) doubling.
In one embodiment, the first web is transported at a first speed in the range of 100-150m/min, the second web is transported at a second speed in the range of 100-150m/min, and the third web is transported at a third speed in the range of 80-130m/min during the lapping.
In one embodiment, in pre-needling, the first, second and third pre-needling transport speeds range from 80-120m/min, 80-120m/min and 70-130m/min, respectively; the first, second and third output speed ranges are 100-140m/min, 100-140m/min and 100-160m/min, respectively.
In one embodiment, the cotton fibers used in the first and second webs range in length from 30 to 40mm; the third fiber net is made of polylactic acid fibers, the fineness range of the polylactic acid fibers is 1-2d, and the fiber length range is 25-30mm.
In one embodiment, the method further comprises a bleaching step, wherein the superimposed fiber web after the spunlace is degreased and bleached by adopting a bleaching auxiliary agent, wherein the bleaching temperature is 80-120 ℃, and the bleaching time is 70-100min.
In one embodiment, the bleaching assistant comprises hydrogen peroxide, sodium hydroxide and a low-temperature scouring agent, wherein the bath ratio ranges from 1:10 to 1.
According to the manufacturing method of the bionic wrinkle non-woven fabric of the embodiment, the conveying speed, the pre-needling conveying speed and the output speed for drawing the first fiber web, the second fiber web and the third fiber web are changed in the lapping and pre-needling processes, so that wrinkles are formed on the surface of at least one of the first fiber web, the second fiber web and the third fiber web, and meanwhile, the folded fiber web with the wrinkles formed is reinforced under the water-needling and drying steps, namely, the wrinkles on the surface of the folded fiber web are reinforced, so that the fabric with the wrinkled appearance is obtained.
Drawings
FIG. 1 is a process flow diagram of a method for manufacturing a biomimetic pleated non-woven fabric according to an embodiment;
FIG. 2 is a schematic structural diagram of a water-jet step in a bionic crimped nonwoven fabric manufacturing method according to an embodiment;
FIG. 3 is a diagram showing the wrinkle pattern of a fiber web in a method for manufacturing a bionically-wrinkled non-woven fabric according to an embodiment (first type);
FIG. 4 is a diagram showing the wrinkle pattern of the fiber web in the method for manufacturing the bionic wrinkle non-woven fabric according to the embodiment (second type);
FIG. 5 is a diagram showing the wrinkle pattern of a fiber web in a method for manufacturing a bionically-wrinkled non-woven fabric according to an embodiment (third method);
FIG. 6 is a diagram showing a wrinkle pattern of a fiber web in a method for manufacturing a biomimetic wrinkled non-woven fabric according to an embodiment (fourth);
FIG. 7 is a diagram showing a wrinkle pattern of a fiber web in a method for manufacturing a bionically-wrinkled non-woven fabric according to an embodiment (fifth);
FIG. 8 is a diagram showing a wrinkle pattern of a fiber web in a method for manufacturing a bionically-wrinkled non-woven fabric according to an embodiment (sixth pattern);
fig. 9 is a diagram (seventh) showing a wrinkle pattern of a fiber web in a method for manufacturing a biomimetic wrinkled non-woven fabric according to an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the described features, operations, or characteristics may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" as used herein, unless otherwise indicated, includes both direct and indirect connections.
In the manufacture of pleated fabrics, the process of pleating the fabric, which is already a complete body made of fibers, is typically performed by both manual and machine pleating. The manual wrinkling process is traditionally to form wrinkles on the fabric in manual modes such as stitch embroidery or fold forming and the like, and the process has high labor cost and limited mass production; the machine wrinkling process is to form wrinkles of various shapes on the fabric by a wrinkling machine under certain temperature and humidity conditions by utilizing the pressure of the wrinkling machine, and because the wrinkling process is carried out after the fabric is finished, the time consumption is long, and the efficiency is low.
Specifically, referring to fig. 1, the application provides a method for manufacturing a bionic wrinkled non-woven fabric, which is used for manufacturing wrinkled fabric, cotton fibers and polylactic acid fibers are obtained through unpacking and blowing, large bin mixing and air pressure cotton box arrangement, then a first fiber web 41, a second fiber web 42 and a third fiber web 43 are formed under carding, and are dragged and conveyed to a pre-pricking stage by a first conveying speed, a second conveying speed and a third conveying speed corresponding to the first fiber web 41, the second fiber web 42 and the third fiber web 43, wherein in the pre-pricking, the first fiber web 41, the second fiber web 42 and the third fiber web 43 are respectively dragged and conveyed by the first pre-pricking conveying speed, the second pre-pricking conveying speed and the third pre-pricking conveying speed, wherein at least one group of the pre-pricking speed and the conveying speed in the carding forms a speed difference, so that the pulled fiber webs form preliminary wrinkles; after pre-needling, the first fiber web 41, the second fiber web 42 and the third fiber web 43 are respectively drawn by the first output speed, the second output speed and the third output speed, and are laminated to form the laminated fiber web 10, wherein the laminated fiber web is the first fiber web 41, the third fiber web 43 and the second fiber web 42 sequentially from top to bottom, specifically referring to fig. 2; the first, second and third output speeds are different from each other, so that at least one layer of fiber web on the conveying path is wrinkled, and the size of the wrinkles is further increased; the folded fiber web 10 is spunlaced to fix the folds on the folded fiber web 10, and the method of spunlacing to fix the folds is adopted, so that the energy consumption is low, and the folded fiber web is green and pollution-free. Finally, the web 10 is superimposed and dried, wherein the third web 43, upon drying, is melt shrink bonded securing the first and second webs 41, 42 in contact therewith, thereby forming a creped fabric.
Further, referring to fig. 1, step 1 is unpacking and blowing, specifically, the whole cotton and/or polylactic acid fiber is grabbed and scattered by an unpacking machine, that is, the cotton is grabbed and scattered by the unpacking machine, and the polylactic acid fiber is grabbed and scattered by other similar structures; otherwise, the cotton is scattered by other structures, and the polylactic acid fiber is scattered and cleaned by a bale opener; or the cotton and the polylactic acid fiber are scattered by a bale opener, and impurities such as raw cotton seeds, three filaments and the like on the cotton are cleaned, and simultaneously, the impurities on the polylactic acid fiber are also included. Step 2, large-bin mixing, namely preliminarily mixing the cleaned cotton and polylactic acid fibers according to fibers with different lengths, namely independently mixing the cotton fibers and independently mixing the polylactic acid fibers; and 3, mixing the cotton fibers and the polylactic acid fibers respectively by using an air pressure cotton box, blowing off the residual impurities in the fibers by using air flow, sucking the impurities into a waste device for storage, and conveying the treated cotton fibers and the treated polylactic acid fibers to a corresponding step 4, namely a carding step.
Example 1
The embodiment provides a bionic fold non-woven fabric, which comprises three layers of non-woven fabrics which are distributed in a laminated manner and are fixedly entangled, wherein the three layers of non-woven fabrics comprise two layers of all-cotton spunlace non-woven fabrics and polylactic acid spunlace non-woven fabrics which are fixedly entangled between the two layers of all-cotton non-woven fabrics; at least two of the three layers of non-woven fabrics are overlapped at different transportation speeds and/or different pre-needling speeds so as to form a wrinkle structure on the surface of at least one layer of non-woven fabric, namely, one layer is formed by wrinkles on the surface of the all-cotton spunlace non-woven fabric, the other layer is formed by wrinkles on the polylactic acid spunlace non-woven fabric, or both the all-cotton spunlace non-woven fabric and the polylactic acid spunlace non-woven fabric are formed by wrinkles.
Furthermore, the weight range of the square meter of the all-cotton spunlace non-woven fabric is 25-50g, the weight range of the square meter of the polylactic acid spunlace non-woven fabric is 10-35g, and the weight range of the whole square meter of the three-layer non-woven fabric is 80-120g; wherein the texture of the all-cotton spunlace non-woven fabric can be one of a plain texture, a mesh texture, a raised texture and the like; the grain of the polylactic acid spunlace non-woven fabric is not limited; in other embodiments, the texture on both the all-cotton spunlace nonwoven and the polylactic acid spunlace nonwoven may be without limitation.
Example 2
Referring to fig. 1 to 9, the present embodiment provides a method for manufacturing a biomimetic wrinkled non-woven fabric, wherein wrinkling of the fabric is realized by adjusting the speed of transporting a fiber web, i.e. forming a speed difference, and fixing the wrinkle shape of the fabric is also realized efficiently by step 7, the method includes steps 4, 5, 6, 7, 8 and 9; the following are described separately.
And step 4, a carding process, wherein cotton fibers and polylactic acid fibers can be carded into a single fiber state respectively through a carding machine, and the carding speed of the carding machine is 400-500m/min.
Further, in step 5, the first web 41 is transported at a first speed in the range of 100 to 150m/min, the second web 42 is transported at a second speed in the range of 100 to 150m/min, and the third web 43 is transported at a third speed in the range of 80 to 130m/min.
Further, the first fiber web 41, the second fiber web 42 and the third fiber web 43 are respectively pulled by the first pre-needling transportation speed, the second pre-needling transportation speed and the third pre-needling transportation speed while being subjected to the water pressure, wherein the first pre-needling transportation speed ranges from 80 to 120m/min, the second pre-needling transportation speed ranges from 80 to 120m/min and the third pre-needling transportation speed ranges from 70 to 130m/min; in this embodiment, the web may be transported by laying it flat or by rotating it around a roller.
Regarding the description of the relationship between the transportation speed and the pre-needling transportation speed, in the technical scheme, the first pre-needling transportation speed, the second pre-needling transportation speed and the third pre-needling transportation speed respectively form speed differences with the corresponding first transportation speed, second transportation speed and third transportation speed; that is, the first transport speed and the first pre-needling transport speed are on the same transport path, that is, both draw the first fiber web 41, and a speed difference can be formed between the two speeds through adjustment; similarly, the second transport speed and the second pre-needling transport speed are on the same transport path, i.e., the second web 42 is pulled, and the same adjustment is made, so that a speed difference can be formed between the two speeds; finally, the third transport speed and the third pre-needling transport speed are on the same transport path, i.e., drawing third web 43, and still creating a speed differential.
Further, when a speed difference is formed between the conveying speed and the pre-needling conveying speed, the fiber web can form wrinkles, for example, when the conveying speed is higher than the pre-needling conveying speed, the fiber web is adjusted from the conveying speed traction to the pre-needling conveying speed traction and is influenced by the speed difference, so that the fiber web forms primary wrinkles, the size of the wrinkles is positively correlated with the speed difference, and the wrinkles are more obvious when the speed difference is larger; meanwhile, it is inferred that at least one of the first web 41, the second web 42, and the third web 43 generates a preliminary wrinkle due to the speed difference.
Further, after at least one of the first web 41, the second web 42, and the third web 43 is wrinkled, the subsequent transportation is continued, and when the step 7 is ready, the first web 41, the second web 42, and the third web 43 are respectively pulled by the first output speed, the second output speed, and the third output speed, and are stacked to form the laminated web 10; that is, the first, second and third fiber webs 43 are primarily compounded into a fabric form, specifically referring to fig. 2, wherein the first, second and third output speed ranges are 100-140m/min, 100-140m/min and 100-160m/min, respectively; likewise, in this embodiment, the web may be drawn out by lay-up or by drum rotation. In this technical solution, at least one of the first output speed, the second output speed, and the third output speed is different from the other speeds when the speed is selected, and different speed differences among the first output speed, the second output speed, and the third output speed cause different states to be formed on the fiber web, for example, the fiber web is in a folded state or a flat state, which may be specifically divided into the following cases, for convenience of description, the first output speed is v1, the second output speed is v2, and the third output speed is v3.
Referring to fig. 3, the first: when v1= v2> v3, the output speed of the first web 41 and the second web 42 is greater than the output speed of the third web 43, so that the surfaces of the first web 42 and the second web 42 are wrinkled during the process of compounding the webs, and the third web 43 continues to lay flat for compounding.
Referring to fig. 4, in the second mode, when v1= v2< v3, the output speed of the first web 41 and the second web 42 drawn is lower than the output speed of the third web 43 drawn, so that the surfaces of the first web 42 and the second web 42 are laid flat and combined with the third web 43, and the third web 43 is wrinkled and combined with the first web 42 and the second web 42 during the combining process.
Specifically, please refer to fig. 5, the third: when v1> v2> v3, the first web 41, the second web 42, and the third web 43 are pulled at different speeds, and wrinkles are generated on the surfaces of the first, second, and third webs 43 in the web combining process, but the sizes of the wrinkles of the webs are not uniform, and a wrinkle pattern having a high speed is large.
Specifically, referring to fig. 6, the fourth: when v1> v2= v3, the surface of the first web 41 is wrinkled, and the second web 42 and the third web 43 are still combined with the first web 41 in a flat manner.
Specifically, please refer to fig. 7, the fifth: when v1< v2= v3, the web form is opposite to the fourth web form, that is, the first web 41 is laid flat, and wrinkles are generated on the surfaces of the second web 42 and the third web 43 to be combined with the first web 41.
Specifically, referring to fig. 8, the sixth method: when v2> v1= v3, wrinkles are generated on the surface of the second web 42, and the first web 41 and the third web 43 are combined with the second web 42 in a laid state.
Specifically, please refer to fig. 9, the seventh: when v2< v1= v3, the surfaces of the first web 41 and the third web 43 are wrinkled, and the second web 42 is combined with the first and second webs 42 in a flat manner.
An eighth method: v1= v2= v3, the first web 41, the second web 42 and the third web 43 are all combined in a flat laid manner, and in practice, the laminated web 10 in this manner also has a certain wrinkle form, specifically because wrinkles are formed in the web when there is a speed difference between the transport speed in the web laying step 5 and the pre-needling transport speed in the pre-needling step 6.
In addition, in other embodiments, the first web 41, the second web 42, and the third web 43 may be laminated and combined with an adjacent web and then laminated and combined with another web, for example, the first web 41 and the second web 42 may be laminated and combined with the third web 43 by a speed difference, or the second web 42 and the third web 43 may be laminated and combined with the first web 41 by a speed difference.
Further, step 7 is performed on the laminated fiber web 10, and step 7 is a spunlace process, that is, the laminated fiber web 10 is subjected to spunlace reinforcement, for example, a plurality of high-pressure water needles penetrate through the fiber web to make the disordered fibers mutually cohere to play a reinforcing role.
Wherein the selected range of the water jet pressure is (120-140) × 10 5 Pa, the water jet speed is 150-200m/min, and the water jet speed is the speed after the superimposed fiber web 10 is drawn and transported to the next step.
Further, the spunlaced laminated fiber web 10 is subjected to the treatment of step 8 and step 9, namely, bleaching and drying, for convenience of description, the laminated fiber web 10 is hereinafter stated as an initial crepe fabric, and the initial crepe fabric is subjected to degreasing bleaching through reaction with a bleaching assistant, specifically, the bleaching assistant comprises hydrogen peroxide, sodium hydroxide and a low-temperature scouring agent, the bath ratio of the bleaching assistant is in a range of 1.
In one embodiment, the unbleached initially pleated fabric is subjected to step 9, i.e. drying treatment, and since the unbleached initially pleated fabric has a high water content, one or more drying stages are required, e.g. the initially pleated fabric is dried by a dryer, e.g. the temperature range above the first fiber web 41 in the initially pleated fabric is 120-140 ℃, the temperature range below the third fiber web 43 is 100-120 ℃, the transport speed of the initially pleated nonwoven fabric in the dryer is 50-70m/min, wherein the third fiber web 43 is made of polylactic acid fibers, the polylactic acid fiber web is melted and shrunk due to high temperature, so as to bond the first fiber web 41 and the second fiber web 42 in contact with the third fiber web 43 on the upper and lower surfaces thereof, thereby forming a three-dimensional hollow pleated nonwoven fabric, but due to practical factors, the melt-shrunk viscosity of the second fiber web 42 is not enough, the pleats are not enough to cause the non-woven fabric to be insufficiently folded, so that a preheated viscous nonwoven fabric 43 is arranged on the output path of the nonwoven fabric, the first fiber web 43 is melted and the biomimetic nonwoven web is hot-gathered in the range of the first fiber web 41-8, thereby obtaining a final biomimetic nonwoven fabric with a final thickness of the first fiber web.
Further, with the above, it can be seen that the three-dimensional hollow bionic fold non-woven fabric has the characteristics of air permeability and softness and skin friendliness.
Furthermore, the bionic fold non-woven fabric formed by the technical scheme can be deduced as being realized according to the speed difference, folds on the fabric are irregular arc-shaped protrusions which are randomly distributed, the irregular arc-shaped protrusions increase the friction between the skin and the surface layer, the air feeling is obvious, the air permeability is also enhanced, the touch feeling is elastic, and meanwhile, the contact area between the skin and the fabric surface is reduced through physical action, so that the stimulation of body fluid on the skin is reduced.
The present invention has been described in terms of specific examples, which are provided to aid in understanding the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. The bionic wrinkled non-woven fabric is characterized by comprising three layers of non-woven fabrics which are distributed in a laminated manner and are fixedly entangled, wherein the three layers of non-woven fabrics comprise two layers of all-cotton spunlace non-woven fabrics and polylactic acid spunlace non-woven fabrics which are fixedly entangled between the two layers of all-cotton non-woven fabrics; at least two of the three layers of non-woven fabrics are overlapped at different conveying speeds and/or different pre-needling speeds, so that a corrugated structure is formed on the surface of at least one layer of non-woven fabric.
2. The bionically pleated nonwoven fabric of claim 2, wherein the weight of the all-cotton spunlace nonwoven fabric in square meters is 25 to 50g, and the weight of the polylactic acid spunlace nonwoven fabric in square meters is 10 to 35g.
3. The method for manufacturing the bionic crimped non-woven fabric according to any one of claims 1-2, which comprises the following steps:
carding, wherein cotton fibers and polylactic acid fibers are carded into single fibers respectively;
lapping, namely lapping cotton fibers in a single fiber state into a fluffy net structure so as to respectively obtain a first fiber net and a second fiber net (42); overlaying polylactic acid fibers in a single fiber state to form a fluffy net structure to obtain a third fiber net (43); -the next step of transporting the first (41), second (42) and third (43) webs at a first, second and third transport speed, respectively, wherein at least two of the first, second and third transport speeds are different;
pre-needling, wherein the first fiber web (41), the second fiber web (42) and the third fiber web (43) are pre-treated from a dry state to a wet state fiber web, and simultaneously the first fiber web (41), the second fiber web (42) and the third fiber web (43) are respectively pulled at a first pre-needling conveying speed, a second pre-needling conveying speed and a third pre-needling conveying speed; the first pre-needling transportation speed, the second pre-needling transportation speed and the third pre-needling transportation speed respectively form speed differences with the corresponding first transportation speed, second transportation speed and third transportation speed; then the first fiber web (41), the second fiber web (42) and the third fiber web (43) are drawn by the first output speed, the second output speed and the third output speed again, so that the first fiber web (41), the third fiber web (43) and the second fiber web (42) are sequentially stacked to form a laminated fiber web (10); wherein at least two of the first, second and third output speeds are different;
carrying out spunlace, namely carrying out spunlace entanglement reinforcement on the laminated fiber web (10);
and (4) drying, namely drying the fiber web reinforced by spunlace entanglement to obtain the bionic wrinkle non-woven fabric.
4. The method for manufacturing a biomimetic folded non-woven fabric according to claim 3, further comprising a hot roller, wherein the hot roller is positioned on a conveying path after the melting and shrinking of the fiber web in the drying process.
5. The method of claim 3, wherein the step of pretreating the first, second and third webs (41, 42, 43) from a dry state to a wet state comprises applying a pre-needling pressure of (0.2-0.5) 10 x 10 in a manner corresponding to the square meter weight of the webs 5 And (4) doubling.
6. A method of producing a bionically pleated nonwoven fabric as set forth in claim 3, characterized in that a first transport speed of the first web (41) is 100 to 150m/min, a second transport speed of the second web (42) is in a range of 100 to 150m/min and a third transport speed of the third web (43) is in a range of 80 to 130m/min in the lapping.
7. The method for manufacturing a bionic crimped non-woven fabric according to claim 3, wherein in the pre-needling, the first, second and third pre-needling transport speeds are respectively in the ranges of 80-120m/min, 80-120m/min and 70-130m/min; the first, second and third output speed ranges are 100-140m/min, 100-140m/min and 100-160m/min, respectively.
8. A method of producing a bionically pleated nonwoven fabric as set forth in claim 3, characterized in that a length of cotton fibers used in the first fiber web (41) and the second fiber web (42) is in a range of 30 to 40mm; the third fiber net (43) is made of polylactic acid fibers, the titer range of the polylactic acid fibers is 1-2d, and the fiber length range is 25-30mm.
9. The method for manufacturing the bionic crimped non-woven fabric according to claim 3, further comprising a bleaching step of degreasing and bleaching the laminated fiber web (10) after the water-jet step (7) by using a bleaching aid, wherein the bleaching temperature is 80-120 ℃ and the bleaching time is 70-100min.
10. The method for manufacturing the bionic wrinkled non-woven fabric according to claim 9, wherein the bleaching assistant comprises hydrogen peroxide, sodium hydroxide and a low-temperature scouring agent, and the bath ratio ranges from 1:10 to 1.
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| CN202211151285.XA CN115652526A (en) | 2022-09-21 | 2022-09-21 | Bionic wrinkled non-woven fabric and manufacturing method thereof |
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| CN202211151285.XA CN115652526A (en) | 2022-09-21 | 2022-09-21 | Bionic wrinkled non-woven fabric and manufacturing method thereof |
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