CN113106671A

CN113106671A - Roller, manufacturing method thereof and roller assembly

Info

Publication number: CN113106671A
Application number: CN202110351814.XA
Authority: CN
Inventors: 冯唐亮; 杨刚; 王茂龙
Original assignee: Guangdong Esquel Textiles Co Ltd
Current assignee: Guangdong Esquel Textiles Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-07-13
Anticipated expiration: 2041-03-31
Also published as: CN113106671B

Abstract

The invention relates to a roller, a manufacturing method thereof and a roller assembly. The roller comprises a roller core and a coating layer, wherein the roller core is wrapped by the coating layer, and the coating layer is of a porous structure distributed with permeation micropores. The roll assembly comprises a first rotating roll and a second rotating roll, wherein the first rotating roll and the second rotating roll are arranged oppositely, roll surfaces are mutually abutted and can rotate oppositely, and at least one of the first rotating roll and the second rotating roll is the roll in any embodiment. The roller comprises a roller core and a coating layer, the coating layer is of a porous structure with permeation micropores, when the roller extrudes the fabric, on one hand, liquid in the fabric is extruded by extrusion force, and on the other hand, the permeation micropores in the coating layer can absorb liquid in a fabric and a roller gap, so that the liquid carrying rate of the fabric can be effectively reduced.

Description

Roller, manufacturing method thereof and roller assembly

Technical Field

The invention relates to the field of textile equipment, in particular to a roller, a manufacturing method thereof and a roller assembly.

Background

In the textile industry, after finishing the fabric, post finishing is required. In the post-finishing process, a roller is usually required to extrude the fabric to achieve the effects of better absorbing the finishing agent or reducing the liquid carrying rate and the like.

The conventionally used roll is generally a rubber roll or a steel roll. Wherein, the rollers used for rolling materials or rolling water are all rubber rollers. However, after the fabric is subjected to water squeezing by using a conventional rubber roller, the liquid carrying rate of the fabric is high, generally 45% -60%, which is not beneficial to the subsequent processes.

Disclosure of Invention

Accordingly, there is a need for a roll, a method of making the same, and a roll assembly that reduces the liquid carrying rate of a rolled fabric.

One of the objects of the present invention is to provide a roll, the solution is as follows:

the roller comprises a roller core and a coating layer, wherein the roller core is wrapped by the coating layer, and the coating layer is of a porous structure distributed with permeation micropores.

In one embodiment, an adhesive layer is disposed between the roll core and the cover.

In one embodiment, the adhesive layer is a polyacrylate adhesive layer.

In one embodiment, the coating layer is a porous structure formed by winding elastic fibers and thermally melting and adhering the elastic fibers.

In one embodiment, the elastic fiber is a polyurethane elastic fiber.

In one embodiment, the thickness of the coating layer is 3cm to 5 cm. Further, the thickness of the coating layer is 3.5 cm-4.5 cm.

In one embodiment, the porosity of the coating layer is 20% to 50%. Further, the porosity of the coating layer is 40% -50%.

In one embodiment, the pore diameter of the permeation micropores is 100 to 200 μm. Furthermore, the pore diameter of the permeation micropores is 120-180 μm.

In one embodiment, the hardness of the coating layer is 85 HS-95 HS. Further, the hardness of the coating layer is 90 HS-95 HS.

Compared with the prior art, the roller has the following beneficial effects:

the roller comprises a roller core and a coating layer, the coating layer is of a porous structure with permeation micropores, when the roller extrudes the fabric, on one hand, liquid in the fabric is extruded by extrusion force, and on the other hand, the permeation micropores in the coating layer can absorb liquid in a fabric and a roller gap, so that the liquid carrying rate of the fabric can be effectively reduced.

Another object of the invention is to provide a roll assembly, the solution is as follows:

a roll assembly comprising a first rotatable roll and a second rotatable roll, the first rotatable roll and the second rotatable roll being disposed opposite one another with roll surfaces abutting one another and being rotatable in opposite directions, at least one of the first rotatable roll and the second rotatable roll being a roll as in any one of the embodiments described above.

The roll assembly described above has a roll according to any of the examples described above, whereby a corresponding technical effect can be obtained.

The invention also aims to provide a manufacturing method of the roller, which adopts the following scheme:

a manufacturing method of a roller comprises the following steps:

providing a roller core, and wrapping a coating layer on the roller core, wherein the coating layer is of a porous structure distributed with permeation micropores.

In one embodiment, the step of wrapping a cover over the roll core comprises:

winding elastic fibers on the roller core;

and heating the elastic fibers to thermally melt and adhere the elastic fibers to form the porous layer.

In one embodiment, the temperature of the heat treatment is 90 ℃ to 120 ℃.

In one embodiment, the time of the heat treatment is 5min to 30 min.

In one embodiment, before winding the elastic fiber on the roller core, the method further comprises the following steps:

an adhesive is applied to the roll core.

In one embodiment, the adhesive is a polyacrylate adhesive.

In one embodiment, after the heat treatment, the method further comprises the steps of:

the porous layer is subjected to a compression treatment to increase the hardness of the porous layer to 85HS to 95 HS.

Compared with the prior scheme, the roller, the manufacturing method thereof and the roller assembly have the following beneficial effects:

according to the manufacturing method of the roller, the roller core is wrapped with the coating layer, the coating layer is of a porous structure with the permeation micropores distributed, when the roller extrudes the fabric, on one hand, liquid in the fabric is extruded by extrusion force, and on the other hand, the permeation micropores in the coating layer can absorb liquid in a fabric and a roller gap, so that the liquid carrying rate of the fabric can be effectively reduced.

Drawings

FIG. 1 is a schematic view of a roll according to an embodiment;

FIG. 2 is a cross-sectional view of the roll shown in FIG. 1;

fig. 3 is a schematic view of the structure of a roll assembly including the rolls shown in fig. 1.

Description of reference numerals:

100, rolling; 110 roll cores; 120 of a coating layer; 200 roll assemblies; 210 a first rotating roller; 220 second turning roll.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a roll 100 according to an embodiment of the present invention includes a roll core 110 and a cladding 120, wherein the cladding 120 wraps the roll core 110. Wherein, the coating layer 120 is a porous structure with permeable micropores distributed therein.

The coating layer 120 of the roll 100 has a porous structure with a plurality of penetrating pores, and can be used as a rolling material component. When the fabric is pressed by the roller 100, on one hand, the liquid in the fabric is squeezed out by the pressing force, and on the other hand, the permeation micropores in the coating layer 120 can absorb the residual liquid in the fabric and the roller gap, so that the liquid carrying rate of the fabric can be more effectively reduced.

The core 110 may be made of a rigid material, such as stainless steel, to improve the overall structural strength of the roll 100. The stainless steel material can prevent corrosion at the same time.

In one example, an adhesive layer is disposed between the roll core 110 and the cover 120.

The roll 100 of the above example has the adhesive layer provided between the core 110 and the cover 120, and can improve the bonding strength between the core 110 and the cover 120 and ensure the structural stability.

In one example, the adhesive layer is a polyacrylate glue layer. The polyacrylate adhesive layer has high elasticity, and is favorable for ensuring that the whole of the adhesive layer and the coating layer has excellent flexibility, elasticity and mechanical strength.

In one example, the covering layer 120 is a porous structure formed by winding elastic fibers around each other and thermally adhering the elastic fibers. Thus, a highly elastic porous structure can be formed.

In one example, the elastic fiber is polyurethane elastic fiber. The polyurethane elastic fiber has high elasticity, and ensures that the coating layer has excellent flexibility, elasticity and mechanical strength.

In one example, the thickness of the clad layer 120 is 3cm to 5 cm. Further, in one example, the thickness of the coating layer is 3.5cm to 4.5 cm. In some specific examples, the thickness of the cladding layer 120 is 3cm, 3.6cm, 4cm, 4.2cm, and the like.

The thickness of the coating layer 120 in the range can ensure that the permeable micropores can absorb residual liquid in the fabric and the roller gap to a great extent, reduce the liquid-charging rate of the fabric, and avoid the problem of low utilization rate of the permeable micropores distributed close to the roller core 110 side due to the overlarge thickness of the coating layer 120.

In one example, the porosity of the clad 120 is 20% to 50%. Further, in one example, the porosity of the clad 120 is 40% to 50%. In some specific examples, the porosity of the cladding layer 120 is 30%, 40%, 45%, 50%, etc.

The porosity of the coating layer 120 in the roll 100 of the above example is set to 20% to 50%, and more preferably to 40% to 50%, and the coating layer 120 has a sufficient cavity volume, so that the residual liquid of the fabric can be absorbed more effectively, and the liquid carrying rate of the fabric is reduced.

In one example, the pore size of the infiltrating micropores is 100-200 μm. Further, in one example, the pore size of the permeation micropores is 120 μm to 180 μm. In some specific examples, the porosity of the cladding layer 120 is 130 μm, 150 μm, 170 μm, 190 μm, or the like.

The pore diameter of the penetration micropores in the roll 100 of the above example is set to 100 μm to 200 μm, and more preferably to 120 μm to 180 μm, so that the coating layer 120 can absorb the residual liquid of the fabric more effectively by capillary action, reducing the liquid carrying rate of the fabric.

In one example, the hardness of the cladding layer 120 is 85HS to 95 HS. Further, in one example, the hardness of the coating layer 120 is 90HS to 95 HS. In some specific examples, the hardness of the cladding layer 120 is 86HS, 89HS, 92HS, 94HS, and the like.

The inventor finds that the hardness of a general rubber roller is generally in the range of 70 HS-80 HS due to material limitation, and the hardness range can enable the liquid carrying rate of the fabric after rolling to be high. The hardness of the coating layer 120 of the roll 100 of the above example is set to 85HS to 95HS, and for example, by compressing elastic fibers wound around each other and thermally bonded to increase the hardness to 85HS to 95HS, the liquid fraction of the rolled fabric can be more effectively increased.

Further, referring to fig. 3, in addition to the above-mentioned roll 100, the present invention further provides a roll assembly 200, which includes a first rotating roll 210 and a second rotating roll 220, wherein the first rotating roll 210 and the second rotating roll 220 are disposed opposite to each other, and roll surfaces thereof are abutted against each other and can rotate opposite to each other, and at least one of the first rotating roll 210 and the second rotating roll 220 is the roll 100 of any of the above examples.

The roll assembly 200 has a roll 100 according to any of the above examples, so that a corresponding technical effect can be obtained.

In one example, the first rotating roller 210 and the second rotating roller 220 are both the above-described nip rollers 100.

In another example, the first rotating roller 210 is the nip roller 100 described above, and the second rotating roller 220 is a steel roller.

In still another example, the first rotating roller 210 employs the above-described nip roller 100, and the second rotating roller 220 employs a rubber roller.

Further, the present invention also provides a method for manufacturing the roller 100 of any one of the above examples, including the steps of:

providing a roller core 110, and wrapping a coating layer 120 on the roller core 110, wherein the coating layer 120 is a porous structure distributed with penetrating micropores.

In the manufacturing method of the roller in the above example, the roll core 110 is wrapped by the cladding layer 120, and the cladding layer 120 has a porous structure with permeable micropores distributed therein, and can be used as a rolling material component. When the fabric is pressed by the roller 100, on one hand, the liquid in the fabric is squeezed out by the pressing force, and on the other hand, the permeation micropores in the coating layer 120 can absorb the residual liquid in the fabric and the roller gap, so that the liquid carrying rate of the fabric can be more effectively reduced.

In one example, before winding the elastic fiber on the roller core 110, the method further comprises the following steps:

an adhesive is applied to the roll core 110.

The manufacturing method of the above example can improve the bonding strength between the roll core 110 and the cover 120 and ensure the structural stability by coating the roll core 110 with the adhesive and then winding the elastic fiber around the roll core 110.

Wherein, the adhesive can be selected from but not limited to polyacrylate adhesive. The polyacrylate adhesive has high elasticity, and is beneficial to ensuring that the whole of the bonding layer and the coating layer has excellent flexibility, elasticity and mechanical strength.

In one example, the step of wrapping the cover 120 around the roll core 110 includes:

winding elastic fibers around the roll core 110;

In the heat treatment process of the roll 100 of the above example, the elastic fibers are melted at the melting point temperature thereof, and the adjacent elastic fibers are bonded to each other to form a porous layer having a certain porosity and pore size, so that a highly elastic porous structure can be formed.

In one example, the temperature of the heat treatment is 90 ℃ to 120 ℃. Further, in one example, the temperature of the heat treatment is 100 ℃ to 110 ℃. In some specific examples, the temperature of the heat treatment is 95 ℃, 100 ℃, 105 ℃, 110 ℃, or the like.

In one example, the time of the heat treatment is 5 to 30 min. Further, in one example, the time of the heat treatment is 10 to 15 min. In some specific examples, the time of the heat treatment is 8min, 10min, 12min, 18min, or the like.

In one example, after the heat treatment, the method further comprises the following steps:

The inventor finds that the hardness of a general rubber roller is generally in the range of 70 HS-80 HS due to material limitation, and the hardness range can enable the liquid carrying rate of the fabric after rolling to be high. In the method for manufacturing the roll according to the above example, the elastic fibers wound around each other and thermally fused are compressed to increase the hardness to 85HS to 95HS, thereby enabling the liquid carrying rate of the rolled fabric to be more effective.

In the manufacturing method of the roller in the above example, the adhesive body is compressed, so that the hardness of the adhesive body is improved, and the adhesive body can be further reinforced, so that the adhesive body and the roller core 110 maintain a good concentric cylinder structure.

In one example, the manufacturing method of the roller comprises the following steps:

providing a roll core 110;

applying an adhesive to the roll core 110;

winding elastic fibers around the roll core 110;

heating the elastic fibers to enable the elastic fibers to be thermally melted and adhered to form a porous layer;

the porous layer is subjected to a compression treatment to increase the hardness of the porous layer.

The following examples are provided to illustrate the present invention, but the present invention is not limited to the following examples, and it should be understood that the appended claims outline the scope of the present invention and those skilled in the art who are guided by the inventive concept will appreciate that certain changes made to the embodiments of the present invention will be covered by the spirit and scope of the claims of the present invention.

Example 1

The present embodiment provides a roll 100. The roll 100 includes a roll core 110 and a coating layer 120, the roll core 110 is wrapped by the coating layer 120, and the coating layer 120 has a porous structure with permeable micropores distributed therein. The elastic fiber for forming the coating layer 120 is polyurethane elastic fiber, and the adhesive for connecting the roll core 110 and the coating layer 120 is acrylic resin adhesive.

The method for manufacturing the roller 100 of the embodiment includes the following steps:

step 1, a uniform layer of acrylic resin adhesive is completely coated on the surface of the roll core 110.

And 2, winding polyurethane elastic fibers on the roller core 110 to form a polyurethane elastic fiber winding body.

And 3, heating the polyurethane elastic fiber winding body at the temperature of 100 ℃ for 20min, so that the polyurethane elastic fibers are hot-melted and adhered to each other at the melting point temperature to form the porous structure layer adhesive body.

And 4, compressing the porous structure layer adhesive body to form a coating layer 120 with the thickness of 3cm and the hardness of 88HS, and keeping the concentric circle structure of the coating layer 120 and the roller core 110 in the compression process, wherein the porosity of the coating layer 120 is about 30 percent, and the pore diameter is about 100 mu m.

Example 2

The present embodiment provides a roll 100. The roll 100 includes a roll core 110 and a coating layer 120, the roll core 110 is wrapped by the coating layer 120, and the coating layer 120 has a porous structure with permeable micropores distributed therein. The elastic fiber for making the coating layer 120 is polyurethane elastic fiber, and the adhesive for connecting the roll core 110 and the coating layer 120 is polyacrylate adhesive.

step 1, a uniform layer of polyacrylate adhesive is completely coated on the surface of the roll core 110.

And 3, heating the polyurethane elastic fiber winding body at the temperature of 120 ℃ for 10min, so that the polyurethane elastic fibers are hot-melted and adhered to each other at the melting point temperature to form the porous structure layer adhesive body.

And 4, compressing the porous structure layer adhesive body to form a coating layer 120 with the thickness of 4cm and the hardness of 86HS, and keeping the concentric circle structure of the coating layer 120 and the roller core 110 in the compression process. The porosity of the clad 120 was about 30%, and the pore diameter was 120 μm.

Example 3

The present embodiment provides a roll assembly 200 comprising a first rotating roll 210 and a second rotating roll 220. The first rotating roller 210 and the second rotating roller 220 are disposed opposite to each other, and the roller surfaces thereof are in contact with each other and can rotate in opposite directions. The first rotating roller 210 is a nip roller 100 and the second rotating roller 220 is a steel roller. In the roll 100, the elastic fiber for forming the coating layer 120 is a polyurethane elastic fiber, and the adhesive for connecting the roll core 110 and the coating layer 120 is a polyacrylate adhesive.

The manufacturing method of the first rotating roller 210 (the rolling roller 100) comprises the following steps:

And 2, uniformly winding polyurethane elastic fibers on the roller core 110 to form a polyurethane elastic fiber winding body.

And 3, heating the polyurethane elastic fiber winding body at the temperature of 120 ℃ for 20min, so that the polyurethane elastic fibers are hot-melted and adhered to each other at the melting point temperature to form the porous structure layer adhesive body.

And 4, compressing the porous structure layer adhesive body to form a coating layer 120 with the thickness of 3cm and the hardness of 90 HS. And maintains the concentric circular configuration of the cover 120 and the core 110 during compression. The porosity of the clad 120 is about 25% and the pore size is about 150 μm.

Production tests were performed on the roll assembly of this example. Taking 1000 yards of woven plain-weave light and thin fabric, after the fabric is subjected to production processes such as singeing, desizing, mercerizing, liquid ammonia and sizing, carrying out mangling on the fabric by using the roller assembly of the embodiment, and recording the liquid carrying rate after rolling and the amount of water vapor required for drying 1000 yards of fabric.

Example 4

And 4, compressing the porous structure layer adhesive body to form a coating layer 120 with the thickness of 3cm and the hardness of 91 HS. And maintains the concentric circular configuration of the cover 120 and the core 110 during compression. The porosity of the clad 120 is about 25%, and the pore diameter is about 120 μm.

Production tests were performed on the roll assembly of this example. Taking 1000 yards of thick fabric spun by a tatted cow, carrying out production processes such as singeing, desizing, mercerizing, liquid ammonia and sizing on the fabric, carrying out mangling on the fabric by using the roller assembly of the embodiment, and recording the liquid carrying rate after rolling and the amount of water vapor required for drying 1000 yards of fabric.

Comparative example 1

The present comparative example is a conventional roll assembly comprising a first rotating roll and a second rotating roll. Wherein, first live-rollers and the second live-rollers set up relatively and the roll surface mutual butt and can rotate in opposite directions, and first live-rollers and second live-rollers are conventional rubber roller.

Production tests were performed on the roll assemblies of this comparative example. Taking 1000 yards of woven plain-weave light and thin fabric, after the fabric is subjected to production procedures of singeing, desizing, mercerizing, liquid ammonia, shaping and the like, carrying out mangling on the fabric by adopting the roller assembly of the comparative example, and recording the liquid carrying rate after rolling and the amount of water vapor required for drying 1000 yards of fabric.

Comparative example 2

Production tests were performed on the roll assemblies of this comparative example. Taking 1000 yards of the thick and heavy woven cattle worsted fabric, carrying out production procedures of singeing, desizing, mercerizing, liquid ammonia, shaping and the like on the fabric, carrying out mangling on the fabric by adopting the roller assembly of the comparative example, and recording the liquid carrying rate after rolling and the amount of water vapor required for drying 1000 yards of the fabric.

In comparative example 1, comparative example 2, example 3 and example 4, the liquid carrying rate after rolling and the steam loss of 1000 yards of fabrics in the drying link are counted, meanwhile, the finished fabrics are sent to a finished product inspection for finished product fabric rating, the quality conditions of the finished fabrics are evaluated, and the results are shown in the following tables 1 to 3.

Table 1 production test of plain weave light and thin woven fabric

Table 2 oxford textile heavy woven fabric production test

TABLE 3 rating of finished fabrics

The scores of the above-mentioned hundred code division and hundred square code division are shown in table 4.

TABLE 4

From the results in tables 1 to 3, the liquor carrying rate of the fabric after rolling can be reduced by 11-14% by using the scheme of the invention, and the steam loss can be saved by 10.29-14.67% when the fabric is dried. From the final product inspection scores in table 3, the best criteria can be achieved in examples 1 and 2, as in comparative examples 1 and 2.

From the results of the above examples, it can be seen that the use of the roll assembly of the present invention to mangle the fabric can ensure the quality of the finished fabric and reduce the energy consumption of the fabric during drying.

The roll 100 includes a core 110 and a cover 120, and the cover 120 has a porous structure with a plurality of penetrating pores and can be used as a rolling material. When the fabric is pressed by the roller 100, on one hand, the liquid in the fabric is squeezed out by the pressing force, and on the other hand, the permeation micropores in the coating layer 120 can absorb the residual liquid in the fabric and the roller gap, so that the liquid carrying rate of the fabric can be more effectively reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The roller is characterized by comprising a roller core and a coating layer, wherein the coating layer wraps the roller core and is of a porous structure distributed with permeation micropores.

2. The roll of claim 1 wherein an adhesive layer is disposed between the core and the cover.

3. The roll of claim 1 wherein said coating is a porous structure of elastomeric fibers intertwined and thermally bonded together.

4. The roll of claim 3 wherein the elastic fibers are polyurethane elastic fibers.

5. The roll of claim 1 wherein the coating has a thickness of 3cm to 5 cm.

6. The roll of claim 1 wherein the porosity of the coating is between 20% and 50%.

7. The roll according to any one of claims 1 to 6 wherein the pores of the infiltrated micro-pores have a pore size of 100 μm to 200 μm.

8. The roll according to any one of claims 1 to 6, characterized in that the hardness of the coating layer is 85HS to 95 HS.

9. A roll assembly comprising a first rotating roll and a second rotating roll, the first rotating roll and the second rotating roll being disposed opposite to each other with roll surfaces abutting each other and being rotatable toward each other, at least one of the first rotating roll and the second rotating roll being the roll according to any one of claims 1 to 8.

10. The manufacturing method of the roller is characterized by comprising the following steps:

11. The method of claim 10, wherein the step of wrapping the roll core with a cover comprises:

winding elastic fibers on the roller core;

12. The method of claim 11, further comprising, prior to winding the elastomeric fiber around the roll core, the steps of:

an adhesive is applied to the roll core.

13. The method of claim 12, wherein the adhesive is a polyacrylate adhesive.

14. The method of manufacturing according to any one of claims 11 to 13, further comprising, after the heat treatment, the step of: