阅读说明：本技术 一种具有抗菌功能的织物及其快速成形方法 (Fabric with antibacterial function and rapid forming method thereof ) 是由 张尧宗 于 2020-11-05 设计创作，主要内容包括：一种具有抗菌功能的织物,具有采用三维打印方式形成的层叠构造,在层叠构造的不同层厚上具有由差异化打印形成的不同的抗菌粒子含量,从而使得抗菌粒子含量具有层间的梯度变化,在层叠构造的相同层厚的不同区域,具有由差异化打印形成的不同的抗菌粒子含量,从而使得抗菌粒子含量具有层内的分区变化；上述织物的快速成形方法,在打印过程中通过抗菌母料和基础母料的泵送比例调节实现当前层或当前区域材料的快速配制和切换,进一步通过三维打印设备的三维运动和打印头配合提高打印效率,工艺快捷,制得的织物抗菌功能性和抗菌粒子的缓释性多方面可控,满足了抗菌功能产品的长效缓释需要和个性化定制需要,在生活、医学等领域具有极高的应用价值。(A fabric with an antibacterial function has a laminated structure formed by a three-dimensional printing mode, different antibacterial particle contents formed by differential printing are arranged on different layer thicknesses of the laminated structure, so that the antibacterial particle contents have gradient changes among layers, and different antibacterial particle contents formed by differential printing are arranged in different areas of the same layer thickness of the laminated structure, so that the antibacterial particle contents have zonal changes in the layers; according to the rapid forming method of the fabric, the rapid preparation and switching of the current layer or the current area material are realized through the pumping ratio adjustment of the antibacterial master batch and the basic master batch in the printing process, the printing efficiency is further improved through the three-dimensional motion of the three-dimensional printing equipment and the matching of the printing head, the process is rapid, the prepared fabric has controllable antibacterial functionality and the slow release property of the antibacterial particles in various aspects, the long-acting slow release requirement and the personalized customization requirement of the antibacterial functional product are met, and the rapid forming method of the fabric has a high application value in the fields of life, medicine and the like.)

1. A fabric with an antibacterial function has a laminated structure formed by adopting a three-dimensional printing mode, and is characterized in that at least partial parts have different antibacterial particle contents formed by differential printing on different layer thicknesses of the laminated structure, so that the antibacterial particle contents have gradient change among layers; and/or, at least in some parts, in different areas of the same layer thickness of the laminated structure, having different antimicrobial particle contents formed by differential printing, such that the antimicrobial particle contents have zonal variations within the layer.

2. A method for quickly forming a fabric with an antibacterial function is characterized in that in one step, antibacterial master batch and basic master batch are fed and mixed in proportion to prepare a printing material for printing a current layer or a current area, the printing material is sent to a printing head of a three-dimensional printing device, the printing head ejects or extrudes a wire material, and a texture containing specific antibacterial particle content is printed on the current layer or the current area; in another step, the feeding ratio of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current layer or a new current area, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes a wire material, and a texture with the antibacterial particle content changed from that of the previous layer or the previous area is printed on the new current layer or the new current area.

3. The fabric with the antibacterial function according to claim 2, wherein the antibacterial master batch contains nano antibacterial particles, and no antibacterial functional component is added into the base master batch.

4. The fabric with the antibacterial function according to claim 2, wherein in the first step, the antibacterial master batch and the basic master batch are fed and mixed in proportion to prepare a printing material for printing the current layer, the printing material is fed into a printing head of a three-dimensional printing device, the printing head ejects or extrudes a wire material, and a texture containing the antibacterial particle content A% in percentage by weight is printed on the current layer; in the continuous second step, the feeding proportion of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current layer, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes wires, and a texture containing (A + B)% of antibacterial particles in percentage by weight is printed on the new current layer; repeating the operation process of changing the feeding ratio of the antibacterial master batch and the basic master batch and ejecting or extruding the wires in the second step, continuously printing textures (N is a natural number which is more than or equal to 3) containing antibacterial particle contents of (A + 2B)%, (A + 3B)% … … (A + NB)% by weight percentage on a plurality of continuous layers, and finally obtaining the texture with the antibacterial particle content gradually changing among layers and controllable slow release property.

5. The fabric with the antibacterial function according to claim 4, wherein the content of the antibacterial particles in the antibacterial master batch is less than or equal to 25%, the A% is less than or equal to 10%, the number B is a positive increment, and the B% is less than or equal to 2%.

6. The fabric with the antibacterial function according to claim 4, wherein while the texture with gradually changing antibacterial particle content layers and controllable slow release performance is printed, in a certain step, antibacterial master batch and basic master batch are fed and mixed in proportion to prepare a printing material for printing a current area, the printing material is fed into a printing head of a three-dimensional printing device, the printing head ejects or extrudes wires, and the texture with specific antibacterial particle content is printed in the current area; in another step, the feeding proportion of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current area, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes wires, the new current area prints a texture containing the antibacterial particles with the content changed from that of the previous area, and finally the texture with the content of the antibacterial particles changed in the inner partition and the controllable antibacterial performance layer is obtained.

7. The fabric with antibacterial function according to any one of claims 2 to 6, wherein the three-dimensional printing device is a melt deposition device, and the printing head is a spinneret or a filament extrusion head.

8. The fabric with the antibacterial function according to claim 7, wherein the fused deposition equipment adopts at least two pumping barrels to pump the base master batch and the antibacterial master batch respectively, and the mixing ratio of the base master batch and the antibacterial master batch is adjusted by adjusting a control valve.

9. The fabric having an antibacterial function according to claim 7, wherein the fused deposition equipment comprises two print heads.

10. The fabric with the antibacterial function according to claim 7, wherein the three-dimensional printing device has three-dimensional freedom of motion, wherein the printing head has at least two-dimensional freedom of motion, and the printing platform has at least one-dimensional freedom of motion.

Technical Field

The invention relates to the technical field of rapid forming of fabrics, in particular to a fabric with an antibacterial function and a rapid forming method thereof.

Background

With the improvement of the functional requirements of people on the wearing articles and the special requirements of special public health places, more and more fabrics with antibacterial functions and used for wearing enter the visual field of people.

The other method is a post-finishing method which is commonly called by people, namely, the antibacterial agent is applied to the surface of the fiber by adopting methods such as dipping, padding and coating in the processes of printing, dyeing and finishing of the fabric, and the processing is simple but not resistant to washing and has large dissolution amount.

Generally, the method for manufacturing the fabric by spinning the antibacterial master batches into the antibacterial fibers is an operation process which is safer and has a more lasting antibacterial effect than a 'post-finishing method', but the process for spinning the antibacterial fibers and manufacturing the fabric in the operation process is still complex, the fabric manufacturing efficiency is low, the personalized customization function is insufficient, and for antibacterial materials, a good antibacterial property partition design and an antibacterial particle slow-release control means are not provided.

Disclosure of Invention

In order to solve the problems, the invention provides a fabric with an antibacterial function and a rapid forming method thereof, which realize rapid forming of the fabric with the antibacterial function by means of a three-dimensional printing integral means, and perform antibacterial design on different areas of the fabric or different layers of the same area according to requirements to manufacture the fabric with the antibacterial function, wherein the antibacterial component has a partition characteristic and a gradient distribution characteristic, so that the antibacterial function and the slow release property of antibacterial particles are controllable in various aspects.

The purpose of the invention is realized by the following technical scheme.

A fabric with an antibacterial function has a laminated structure formed by a three-dimensional printing mode, and different antibacterial particle contents formed by differential printing are arranged on different layer thicknesses of the laminated structure at least in partial positions, so that the antibacterial particle contents have gradient change among layers; and/or, at least in some parts, in different areas of the same layer thickness of the laminated structure, having different antimicrobial particle contents formed by differential printing, such that the antimicrobial particle contents have zonal variations within the layer.

A method for quickly forming a fabric with an antibacterial function comprises the steps of adopting antibacterial master batch and basic master batch to feed and mix according to a proportion to prepare a printing material for printing a current layer or a current area, sending the printing material to a printing head of a three-dimensional printing device, ejecting or extruding a wire material by the printing head, and printing a texture containing specific antibacterial particle content on the current layer or the current area; in another step, the feeding ratio of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current layer or a new current area, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes a wire material, and a texture with the antibacterial particle content changed from that of the previous layer or the previous area is printed on the new current layer or the new current area.

The fabric with the antibacterial function is characterized in that the antibacterial master batch contains nano antibacterial particles, and no antibacterial functional component is added into the basic master batch.

In the first step, antibacterial master batch and basic master batch are fed and mixed in proportion to prepare a printing material for printing a current layer, the printing material is sent to a printing head of three-dimensional printing equipment, the printing head ejects or extrudes wires, and a texture containing antibacterial particle content A% in percentage by weight is printed on the current layer; in the continuous second step, the feeding proportion of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current layer, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes wires, and a texture containing (A + B)% of antibacterial particles in percentage by weight is printed on the new current layer; repeating the operation process of changing the feeding ratio of the antibacterial master batch and the basic master batch and ejecting or extruding the wires in the second step, continuously printing textures (N is a natural number which is more than or equal to 3) containing antibacterial particle contents of (A + 2B)%, (A + 3B)% … … (A + NB)% by weight percentage on a plurality of continuous layers, and finally obtaining the texture with the antibacterial particle content gradually changing among layers and controllable slow release property.

The fabric with the antibacterial function has the antibacterial master batch, wherein the content of antibacterial particles in the antibacterial master batch is less than or equal to 25 percent, the A percent is less than or equal to 10 percent, the number B is positive increment, and the B percent is less than or equal to 2 percent.

When the fabric with the antibacterial function is used for printing the texture with gradually-changed antibacterial particle content layers and controllable slow release performance, in a certain step, antibacterial master batch and basic master batch are fed and mixed in proportion to prepare a printing material for printing the current area, the printing material is fed into a printing head of three-dimensional printing equipment, the printing head ejects or extrudes wires, and the texture with specific antibacterial particle content is printed in the current area; in another step, the feeding proportion of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current area, the printing material is sent to a printing head of the three-dimensional printing equipment, the printing head ejects or extrudes wires, the new current area prints a texture containing the antibacterial particles with the content changed from that of the previous area, and finally the texture with the content of the antibacterial particles changed in the inner partition and the controllable antibacterial performance layer is obtained.

The fabric with the antibacterial function is characterized in that the three-dimensional printing device is a fused deposition device, and the printing head is a spinneret or a filament extruding head.

According to the fabric with the antibacterial function, the fused deposition equipment adopts at least two pumping charging barrels to respectively pump the base master batch and the antibacterial master batch, and the mixing ratio of the base master batch and the antibacterial master batch is adjusted through adjusting the control valve.

A fabric having an antimicrobial function as described above, the fused deposition apparatus comprising two print heads.

The textile with the antibacterial function has three-dimensional freedom of movement, wherein the printing head has at least two-dimensional freedom of movement, and the printing platform has at least one-dimensional freedom of movement.

The invention has the beneficial effects that:

the fabric with the antibacterial function and the rapid forming method thereof of the invention utilize the advantages of three-dimensional printing rapid forming to form a laminated structure, at least partial parts are printed with textures with different antibacterial particle contents formed by differential printing on different layer thicknesses of the laminated structure, so that the antibacterial particle contents have gradient change among layers, and at least partial parts are printed with textures with different antibacterial particle contents formed by differential printing in different areas with the same layer thickness of the laminated structure, so that the antibacterial particle contents have zonal change in the layers, the antibacterial component in the manufactured antibacterial functional fabric has zonal characteristics and gradient distribution characteristics, thereby the antibacterial function and the slow release performance of the antibacterial particles are controllable in various aspects, and the long-acting slow release requirements and the individual customization requirements of antibacterial functional products are met, the printing machine has extremely high application value in the fields of life, medicine and the like, the rapid preparation and switching of the current layer or the current area material are realized through the pumping ratio adjustment of the antibacterial master batch and the basic master batch in the printing process, and the three-dimensional printing efficiency is further improved through the three-dimensional motion function of the three-dimensional printing equipment and the matching of a plurality of printing heads.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

fig. 1 is a schematic diagram of rapid fabric formation with antibacterial function according to embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the rapid forming of the fabric with antibacterial function according to embodiment 3 of the present invention.

Fig. 3 is a schematic diagram of the rapid forming of the fabric with antibacterial function according to embodiment 4 of the present invention.

The components represented by the reference numerals in the figures are:

a first pumping cylinder 10, a second pumping cylinder 20, a printing head 31, a secondary printing head 32, a regulating control valve 40, a printing platform 50 and a fabric 60.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Example 1

The embodiment manufactures a fabric with an antibacterial function, the fabric has a laminated structure formed by adopting a three-dimensional printing mode, and different antibacterial particle contents formed by differential printing are arranged on different layer thicknesses of the laminated structure, so that the antibacterial particle contents have gradient changes among layers.

Referring to fig. 1, fig. 1 is a schematic diagram of a fabric rapid prototyping method with an antibacterial function according to embodiment 1 of the present invention, in the foregoing method for rapid prototyping a fabric with an antibacterial function, in a first step, an antibacterial master batch and a basic master batch are proportionally fed and mixed to prepare a printing material for printing a current layer, the printing material is fed into a printing head 31 of a three-dimensional printing device, a filament material is ejected or extruded from the printing head 31, and a texture containing antibacterial particles in an amount of a% by weight is printed on the current layer; in the continuous second step, the feeding ratio of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current layer, the printing material is sent to a printing head 31 of the three-dimensional printing equipment, the printing head 31 ejects or extrudes wires, and a texture containing (A + B)% of antibacterial particles in percentage by weight is printed on the new current layer; repeating the operation process of changing the feeding ratio of the antibacterial master batch and the basic master batch and ejecting or extruding the wires in the second step, continuously printing textures (N is a natural number which is more than or equal to 3) containing antibacterial particle contents of (A + 2B)%, (A + 3B)% … … (A + NB)% by weight percentage on a plurality of continuous layers, and finally obtaining the texture with the antibacterial particle content gradually changing among layers and controllable slow release property.

The three-dimensional printing device of this embodiment is a fused deposition device, the printing head 31 is a filament extrusion head, and the extrusion power is a mechanical screw, but the scope of the present invention is not limited thereto, and other mechanical power such as a piston and the like, and non-mechanical power, as long as the functions of the present invention can be achieved, and the base material in the antibacterial master batch and the base master batch of this embodiment may be various hot-melt polymers or a mixture thereof for fabric manufacturing, preferably includes polyurethane, PET, PP, PE and the like, and preferably conforms to the safety standard or medical standard of human body contact type textiles.

As can be seen from fig. 1, the fused deposition apparatus uses a first pumping cylinder 10 and a second pumping cylinder 20 to pump a base material and an antibacterial material respectively, the mixing ratio of the base material and the antibacterial material is adjusted by an adjusting control valve 40 for adjusting the flow rate/flow rate, a printing head 31 and a printing platform 50 are driven by a three-dimensional motion system (not shown in the figure) under the control of a control system to extrude and weave layer by layer, the weaving route of each layer can be orthogonal or intersected in a vertical and horizontal direction, after the layer thickness is switched, the weaving angle and/or the weaving span can be changed to ensure that the upper surface of the integral fabric 60 is basically homogeneous in a plurality of layer thicknesses, because the extruded wires are printed in a non-overlapping manner in the layer, preferably, the three-dimensional motion system at least comprises a motion freedom degree for moving the printing platform 50 horizontally, so that the printing platform 50 can move oppositely or move crosswise in cooperation with the printing head 31 when the printing head 31 moves horizontally, to improve printing efficiency or to construct a printing angle, unlike many of the same type of three-dimensional motion devices.

According to the control standard of the using amount of the antibacterial particles (nano silver) of the commonly used antibacterial functional fabric in the fields of life, medicine and the like, the embodiment can basically ensure that the pumping amounts of the antibacterial master batch and the basic master batch do not have large difference in magnitude level by controlling the content of the antibacterial particles in the antibacterial master batch to be less than or equal to 25%, preferably between 15% and 20%, wherein in the formula, the A% generally has a value range of less than or equal to 10%, preferably between 3% and 6%, and in the formula, the number B is a positive increment, and generally satisfies that B% is less than or equal to 2%, the smaller the value and the slower the gradient change are, the smaller the difference between the slow-release layers of the antibacterial particles (nano silver) is, so that preferably satisfies that B% is less than or equal to 1%, more preferably satisfies that B% is less than or equal to 0.5%, more preferably that B% is less than or equal to 0.2%, and the corresponding number of printing.

In this embodiment, the number B is a positive increment, which can construct a texture that the content of the antibacterial particles from the outermost layer to the innermost layer of the printed fabric presents an increasing trend, and the antibacterial function slow release of the antibacterial function fabric in a longer period of use has a significant regulating effect, but the invention is not limited thereto, and the number B is a negative increment according to another requirement.

Example 2

In this embodiment, a description is made of manufacturing a texture with a content of antibacterial particles that is changed in a zonal manner and controllable in an antibacterial performance layer, specifically, taking an improvement on the basis of embodiment 1 as an example, when the texture with the content of antibacterial particles that is gradually changed and controllable in a slow release performance layer is printed, in a certain step, antibacterial master batch and basic master batch are proportionally fed and mixed to prepare a printing material for printing a current area, the printing material is fed into a printing head 31 of a three-dimensional printing device, the printing head 31 ejects or extrudes a wire material, and the texture with a specific content of antibacterial particles is printed in the current area; in another step, the feeding ratio of the antibacterial master batch and the basic master batch is changed to prepare a printing material for printing a new current area, the printing material is sent to a printing head 31 of the three-dimensional printing equipment, the printing head 31 ejects or extrudes wires, a texture with the antibacterial particle content changed from that of the previous area is printed in the new current area, and finally the texture with the antibacterial particle content changed in the inner partition and the antibacterial performance layer controllable is obtained.

The advantage of this solution can be illustrated by the fact that for some fabrics with antimicrobial functions for medical or hygienic needs, the possible stress response to the human body can be avoided or reduced by controlling the amount of antimicrobial particles in local areas of the fabric when in contact with particular parts of the human body.

Example 3

The present embodiment is a further improvement on embodiment 1 or embodiment 2, and fig. 2 is a schematic diagram of a fabric rapid prototyping method with an antibacterial function in this embodiment, and in this embodiment, as in embodiment 1 or 2, the three-dimensional printing apparatus is a fused deposition apparatus, the print head is a filament extruding head, the first pumping cylinder 10 and the second pumping cylinder 20 are used to pump the base masterbatch and the antibacterial masterbatch respectively, and the mixing ratio of the base masterbatch and the antibacterial masterbatch is adjusted by the adjusting control valve 40 for adjusting the flow rate/flow rate, except that in this embodiment, two print heads are used, in addition to the print head 31, one sub print head 32 is further provided, and the print head 31, the sub print head 32 and the print platform 50 are driven by a three-dimensional motion system under the control of a control system to extrude filaments and weave layer by layer.

As can be seen from fig. 2, the print head 31 and the sub print head 32, when connected to the first pumping cylinder 10 and the second pumping cylinder 20, share a common regulating control valve 40 on each pumping cylinder, which provides the advantage that the two print heads can increase the printing efficiency by being divided in span, starting position and/or movement amplitude when printing a larger fabric plane and the designed antibacterial particle content of the printing area is not different.

Example 4

The present embodiment is a further improvement on embodiment 3, and fig. 3 is a schematic diagram of a fabric rapid prototyping method with an antibacterial function in the present embodiment, the present embodiment is the same as embodiment 3, the three-dimensional printing device is a fused deposition device, the printing head is a filament extruding head, the first pumping cylinder 10 and the second pumping cylinder 20 are used for respectively pumping the basic masterbatch and the antibacterial masterbatch, the mixing ratio of the basic masterbatch and the antibacterial masterbatch is adjusted by adjusting the control valve 40, the printing head 31 and the sub-printing head 32 are also used for printing, the printing head 31, the sub-printing head 32 and the printing platform 50 are driven by the three-dimensional motion system under the control of the control system, and the filament is extruded and is woven layer by layer.

As can be seen from fig. 3, unlike embodiment 3, the print head 31 and the sub-print head 32 are provided with respective regulating control valves 40 on each of the first pumping barrel 10 and the second pumping barrel 20 when connected to each of the first pumping barrel 10 and the second pumping barrel 20, which is advantageous because different regulating control valves 40 can regulate different mixing ratios, so that the antibacterial particle contents in the materials pumped to the print head 31 and the sub-print head 32 by the first pumping barrel 10 and the second pumping barrel 20 can be different, so that, when the two print heads described in embodiment 3 print a larger fabric plane (the antibacterial particle contents designed for the printing area can be the same or different), the printing efficiency can be improved by partitioning in span, starting position and/or movement amplitude, and the requirement of gradient change of the antibacterial particle contents between different layers can be met, especially, when the printing heads need a certain time interval for the mixing and melting of printing master batches with different antibacterial particle contents, one printing head can be used for printing, and the other printing head can be used for mixing and melting the materials to prepare materials so as to reduce the switching interval time and improve the printing efficiency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.