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WO2016188030A1 - 一种工业织物 - Google Patents

一种工业织物 Download PDF

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Publication number
WO2016188030A1
WO2016188030A1 PCT/CN2015/093035 CN2015093035W WO2016188030A1 WO 2016188030 A1 WO2016188030 A1 WO 2016188030A1 CN 2015093035 W CN2015093035 W CN 2015093035W WO 2016188030 A1 WO2016188030 A1 WO 2016188030A1
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WO
WIPO (PCT)
Prior art keywords
warp
narrow
wide
unit
layer
Prior art date
Application number
PCT/CN2015/093035
Other languages
English (en)
French (fr)
Inventor
丁其俊
袁凌俊
谢鹏
陈富军
陈小雷
袁杏染
Original Assignee
安平县鑫鹏网带有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 安平县鑫鹏网带有限公司 filed Critical 安平县鑫鹏网带有限公司
Publication of WO2016188030A1 publication Critical patent/WO2016188030A1/zh
Priority to US15/821,046 priority Critical patent/US10563327B2/en

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0094—Belts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/04—Endless fabrics
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/10—Seams thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/12—Drying
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial

Definitions

  • the invention relates to the field of engineering textile technology.
  • the main process of paper manufacturing is through the forming, pressing (including wiping, vacuuming and dewatering) of the paper and drying.
  • the wet paper is sandwiched between the dryer and the dryer, and the wet paper is in the dryer.
  • the surface is applied with a certain pressure by the dry mesh.
  • the fibers in the wet paper layer form a large contact area with the surface of the dryer under the pressure of the dry mesh. Under the action of the high temperature and surface pressure of the dryer surface, the moisture in the wet paper sheet is Evaporate quickly to achieve the purpose of drying the paper.
  • the wet paper layer has a large water content and is easily broken.
  • dry nets as single-layer fabrics, sometimes because one thread jumps out of the upper surface, which causes the scrapping of several tons of paper, resulting in great waste.
  • the paper sheet in the drying process of the paper web, the paper sheet must be kept flat, and the drying machine of the paper machine requires that the dry net must have a terminal interface, and some interfaces are not flat, resulting in interface traces, which will also produce like " "The seersucker” is a disease that is uneven. If the interface ring tension is consistent during the installation process, the interface will also lead The resulting dry mesh creates creases that affect the quality of the paper. Excessive or too small air permeability of the dry mesh interface can cause paper breaks in high-speed operation, which affects the papermaking efficiency of the paper machine.
  • the common dry network designs currently in the market are mainly divided into two categories.
  • the first type is that the warp system is up and down penetrating and interweaving with the weft system to form a woven texture;
  • the second type is the warp system for the upper and lower layers of flat wire design, the upper flat warp system is interlaced in the upper and weft systems; the lower layer is flat The warp is interlaced with the weft system in the lower layer.
  • the dry mesh interface forms a 4-row docking break point in the lateral direction (CD) on the back of the dry mesh after all the warp threads are inserted back.
  • CD lateral direction
  • the thread ends of these butt joints are excessively stretched and overstretched due to the damaged paper sheet winding dryer or the guide roller during the operation of the dry web.
  • the excessively stretched dry web will return to the front side of the dry web at the partial back butt joint, causing the sheet to be scratched and holes formed in the surface of the sheet.
  • papermakers have caused huge losses to papermakers and dry-net suppliers because of the return of all the dry nets they bought.
  • the main technical problem solved by the present invention is to provide a secondary fabric for the problems existing in the prior art.
  • the industrial fabric structure is stable, the overall consistency is good, the deformation is not easy, and the durability is improved.
  • the quality and strength of the fabric ensure the quality and efficiency of the paper, reduce the scrap rate and greatly reduce the cost.
  • the invention is especially suitable for dry webs for papermaking, and can also be used as a conveyor belt, and is widely used in papermaking, chemical, pharmaceutical, machinery and other industries.
  • the technical solution of the present invention is: a secondary fabric, which is a mesh made of weft woven of monofilament material warp and monofilament material, characterized in that the warp structure or texture is a two-layer structure; the upper warp is in The upper layer and the weft are weaved, the lower meridian is woven in the lower layer and the weft, and the upper meridian does not intersect the lower meridian; the one meridian basic unit includes 4 subunits, 2 subunits are in the upper layer, and the other 2 subunits are in the lower layer.
  • the upper and lower meridians are vertically superimposed, and at least two of them contain two narrow meridians in parallel;
  • the warp yarn has a flat cross section;
  • top and bottom or front and back warp textures are identical or rotated 180 degrees on one side and are identical to the other.
  • the network is an end network.
  • the interface structure of the end network is a pin ring interface or a spiral ring interface.
  • the warp threads have a rectangular cross section.
  • the two-layer structure is: one upper unit is two parallel long warp threads, and the other unit is two parallel narrow warps; one lower unit is two parallel narrow warps, and the other unit The two narrow warp threads are juxtaposed; the two narrow warp threads of the upper layer unit are vertically superposed with the two narrow warp threads of the lower layer unit.
  • the two-layer structure is: one unit of the upper warp is one wide warp, and the other unit is two narrow warps; one unit of the lower warp is two narrow warps, and the other unit is one wide warp; the upper layer The one wide warp is vertically overlapped with the two narrow warp threads of the lower layer, and the width of the wide warp is 0.6--1.5 times the sum of the widths of the two narrow warps; the two narrow warp of the upper layer and one wide warp of the lower layer are Vertically overlapping, the width of the wide warp is 0.6-1.5 times the sum of the widths of the two narrow warps.
  • the two-layer structure is: one unit of the upper warp is one wide warp, and the other unit is two narrow warps; one unit of the lower warp is two narrow warps, and the other unit is one wide warp; the upper layer The one wide warp is vertically overlapped with the one wide warp of the lower layer; the two parallel warp threads of the upper layer are vertically superposed with the two narrow warp threads of the lower layer.
  • the two-layer structure has a cross section of the mesh having the following arrangement order: the upper meridian in the warp unit is 2 wide, 4 narrow, the corresponding lower layer is 4 narrow, 2 wide; or the upper warp is 3
  • the width is 6 and the width is 6 and the corresponding lower layer is 6 narrow and 3 wide.
  • the weft cross section is circular or rectangular, and the diameter or thickness is the same or different.
  • the monofilament material is a polymer resin.
  • the polymer resin is a polyester monofilament, a PPS monofilament, a PEEK, a PCTA or a nylon polymer monofilament material, one or more of which.
  • the positive effect of the present invention is that the long-standing problems of the prior art are well solved in comparison with the prior art.
  • the industrial fabric structure is stable, the overall consistency is good, the deformation is not easy, the durability is good, the upper surface is flat, the surface is not defective, and the quality and strength of the fabric are improved. Degree, thus ensuring the quality and efficiency of papermaking, reducing the scrap rate and greatly reducing the cost.
  • the invention ensures that the front and back textures are completely the same or rotated 180 degrees, and the design is different from the traditional front and back textures, and the stress difference caused by the difference between the front and back textures can be effectively eliminated. Significantly improve the consistency of the mesh texture to obtain a smoother, flatter mesh surface.
  • the upper and lower meridians never cross, and the plug joints are always kept on the machine surface, and will not penetrate the net body to reach the sticker surface and damage the paper.
  • the parallel double narrow warp threads with the same total width can provide more warp and weft interlacing points than the single wide warp, which can effectively improve the latitudinal stability of the net body.
  • a flexible plug-in solution or combination can be obtained, and by adding additional fillers in the interface ring, the gap in the interface area can be reduced, and the occurrence of paper marks can be reduced and avoided while ensuring the convenience of the Internet.
  • the invention is especially suitable for dry webs for papermaking, and can also be used as a conveyor belt, and is widely used in papermaking, chemical, pharmaceutical, machinery and other industries.
  • FIG. 1 is a schematic structural view (front side of a net) of a first embodiment of the present invention.
  • Figure 2 is a rear view (back of the net) of Figure 1.
  • Fig. 3 is a cross-sectional view taken along line A-A of Fig. 1;
  • Fig. 4 is a cross-sectional view taken along line B-B of Fig. 1;
  • Figure 5 is a schematic structural view of the interface of Embodiment 1.
  • Figure 6 is a rear elevational view of Figure 5.
  • Figure 7 is a cross-sectional view taken along line C-C of Figure 6;
  • Fig. 8 is a schematic structural view (front side of the net) of the embodiment 2 of the present invention.
  • Figure 9 is a rear view (back of the net) of Figure 8.
  • Fig. 10 is a sectional view taken along line D-D of Fig. 8;
  • Figure 11 is a cross-sectional view taken along line E-E of Figure 8.
  • Figure 12 is a schematic structural view of the interface of Embodiment 2.
  • Figure 13 is a rear elevational view of Figure 12 .
  • Fig. 14 is a sectional view taken along line F-F of Fig. 13;
  • L and R with arrows in the figure represent the left and right sides of the fabric, respectively, and are only used to facilitate the reader to identify the corresponding relationship in the figure.
  • the dry net described in the present invention is a warp texture having a two-layer structure, the upper warp is interlaced with the weft in the upper layer of the dry web, and the lower warp is interlaced with the weft in the lower layer of the dry web, and the upper warp and the lower warp will never be produced.
  • cross The warp threads in all warp textures have a non-circular or generally rectangular cross section.
  • the weft may be round or rectangular or any other cross-sectional shape. Different sizes of weft threads can be used in the fabric at the same time.
  • the dry web fabric of the present invention is woven from a monofilament material according to the designed textured structure.
  • different synthetic polymer resin monofilaments are selected according to different paper machines, different paper types and special needs of users.
  • Frequently used monofilament materials are polyester monofilaments and PPS monofilaments, and other materials include PEEK, PCTA, nylon and the like.
  • Two or more different types of monofilaments can be selected for the warp, and two or more different types of monofilaments can be selected for the weft.
  • the front and back textures of the present invention are identical or the same after being rotated by 180 degrees, so that the front side or the back side can be used as a sticker surface.
  • the two-layer structure is: one unit of the upper warp is one wide warp, and the other is two narrow warp threads; one unit of the lower warp is two narrow warps, the other is one wide warp; the other one is a wide warp and
  • the two narrow warp threads of the lower layer are vertically stacked, and the width of the wide warp is 0.6--1.5 times the sum of the widths of the two narrow warps; the two narrow warp of the upper layer and the one wide warp of the lower layer are vertically overlapped, and the width is wide.
  • the width of the warp is 0.6-1.5 times the sum of the widths of the two narrow warps.
  • one unit of the upper layer is a rectangular warp beam 4t with a rectangular cross section, and the other unit is a rectangular cross section narrow warp line 1t and 2t of two parallel rows; one unit of the lower layer is two narrow rectangular warp lines 5b and 6b juxtaposed, and the other
  • the unit is a rectangular cross section 3b with a rectangular cross section.
  • the warp threads of the four elements are interwoven according to the texture map in Table 1 to form a dry mesh fabric, and are alternately arranged in the entire dry web.
  • 1 and 2 are a 3D view and a 3D view of the front side of the dry web fabric of Table 1.
  • the width of the two front narrow warp threads 1t+2t is substantially equal to the width of the back side wide warp 3b; for the same reason, the front wide warp 4t width is approximately equal to the width of the back warp 5b+6b.
  • the cross-sectional dimensions of 1t and 2t are respectively 0.36 mm ⁇ 0.53 mm (thickness ⁇ width), and the cross-sectional dimensions of 3b or 4t are 0.36 mm ⁇ 1.06 mm (thickness ⁇ width), respectively.
  • the dry mesh texture on the front side is exactly the same as the texture of the dry mesh on the back side after rotating 180 degrees. Compared with the traditional front and back textures, the texture of the front and back is effectively eliminated. The stress difference significantly improves the consistency of the mesh texture, resulting in a smoother, flatter mesh surface.
  • the back side of the 1t, 2t and 4t warp threads in the white box in Figure 1 is the warp threads 3b, 5b and 6b in the white box in Figure 2; for the same reason, the weft threads 2w and 4w can also be seen.
  • Figure 3 is a cross-sectional view of the dry wire of Figure 1 taken along the line A-A.
  • This 3D image shows only the texture between the warp 1t, 2t and 3b and the weft 1w, 2w, 3w and 4w.
  • the wire diameters of 1w and 3w are relatively thick; the wire diameters of 2w and 4w are thinner, and the course of the upper meridian units 1t and 2t is 3 up and down, ie above 1w, 2w and 3w
  • the lower meridian unit 3b is a wide line, and the trend is 1 lower 1 and 2 lower, namely: under 1w, above 2w and under 3w, 4w.
  • the above latitude and longitude lines are cycled to form a first group of warp and weft structures.
  • FIG. 4 is a B-B cross-sectional view of the dry web of FIG. 1.
  • This 3D image shows only the texture between the warp threads 4t, 5b and 6b and the weft threads 1w, 2w, 3w and 4w. It can also be seen from the figure that the same 1w and 3w weft are thicker, 2w and 4w weft are thinner, and the upper meridian unit 4t has a trend of 1 upper 1 and 2, ie: above 1w, under 2w and Above 3w, 4w; the lower meridian units 5b and 6b are oriented at 3 lower, namely: 1w, 2w and 3w and above 4w.
  • the above-mentioned latitude and longitude lines are cyclically reciprocated to form a second different warp and weft structure and together with the first group of structure to form a complete woven texture, which runs through all the nets of the dry net.
  • Figure 5 is a 3D view of the front side of the dry mesh interface.
  • 4t in the warp is left at the left side of the dry net to leave a warp of sufficient length as the interface ring, and then re-inserted and form the interface ring 4t-loops at the left end of the dry net; similarly, the warp
  • 1t and 2t are inserted together, a sufficient length of warp is inserted back and the right interface ring 1t/2t-loops of the end of the trunk is formed.
  • 1t and 2t are inserted back on the left side of the trunk, they must be inserted back into the weft 3w to form a back insert.
  • Figure 6 is a 3D view of the back of the dry mesh interface.
  • the 1t and 2t warp threads that are inserted back to the weft 3w on the left side of the dry mesh are docked with 3b; the warp 4t forms the interface ring and then interfaces with 5b and 6b; on the right side of the dry mesh, 1t and 2t form the interface ring and then return.
  • 3b docking, 4t close to the weft 1w after the insertion and 5b and 6b docking all the warp threads must be bent back and inserted according to the dry mesh texture structure during the processing, the interface area of the insertion part is not only docked
  • the breakpoint is consistent with the texture of the dry mesh. Since the upper and lower layers are independent of each other, the upper and lower meridians never cross each other, and the plug joints are always kept on the machine surface, and will not penetrate the net body to reach the sticker surface and damage the paper.
  • Figure 7 is a cross-sectional view of the C-C of the dry mesh interface of Figure 6.
  • the interface rings on the left and right sides are meshed and butted by one or more threading wires (PIN in the figure) to form a closed loop.
  • threading wires PIN in the figure
  • filling in the interface ring with 2 suitable size 1p filler wires can effectively reduce the gap of the interface area and reduce the occurrence of paperpage impressions under the premise of ensuring the convenience of the Internet access, due to the mesh structure.
  • the interface type is not limited to the types shown in Figure 6, Figure 7, you can also select two narrow warp threads from the left side to make the interface ring, and the right side also select two narrow warp threads as the interface ring; or select from the left side One wide warp is used as the interface ring, and the right side is also selected as one wide warp as the interface ring.
  • the narrow line is used as the interface ring on both sides, the spiral ring interface can also be made.
  • the two-layer structure is: one unit in the upper layer is two narrow warp lines juxtaposed, and the other unit is also two narrow warp lines juxtaposed; one unit in the lower layer is two narrow warps juxtaposed, and the other unit is two parallel rows.
  • the warp; the two narrow warp threads of the upper unit are vertically superposed with the two narrow warps of the lower unit.
  • one unit in the upper layer is two parallel narrow-section warp threads 11t and 12t, and the other unit is also two parallel-shaped rectangular cross-sections 13t and 14t;
  • the lower unit is two parallel-shaped rectangular cross-section narrow warp 15b And 16b,
  • the other unit is two parallel rectangular narrow warp threads 17b and 18b, and the four warp elements are interwoven according to the texture map in Table 2 to form a dry web fabric, and are alternately arranged in the whole dry web.
  • Figures 8 and 9 are a 3D view and a 3D view of the back side of the dry web of Table 2.
  • the width of the warp in the upper warp unit and the warp in the lower warp unit are substantially the same, and the width of the warp in the different warp elements in each layer is also substantially the same.
  • 11t and 12t are the same size of 0.36 ⁇ 0.53mm
  • 13t and 14t are 0.36 ⁇ 0.53mm
  • 15b and 16b are 0.36 ⁇ 0.53mm, 17b and 18b. The same is 0.36x0.53mm.
  • Figure 10 is a cross-sectional view of the dry grid D-D of Figure 8.
  • This 3D picture shows only the texture between the warp threads 11t, 12t and 15b, 16b and the weft threads 11w, 12w, 13w and 14w. It can be clearly seen from the figure that the wire diameters of 11w and 13w are relatively thick; the wire diameters of 12w and 14w are thinner.
  • the upper warp units 11t and 12t have a course of 3 up and down, i.e., above 11w, 12w and 13w, below 14w.
  • the course of the lower meridian units 15b and 16b is 1 lower 1 and 2 lower, that is, under 11w, above 12w and under 13w, 14w.
  • the above latitude and longitude lines are cyclically reciprocated to form a first group of warp and weft structures.
  • Figure 11 is a cross-sectional view taken along the line E-E of the dry wire of Figure 8.
  • This 3D picture shows only the texture between the warp threads 13t, 14t and 17b, 18b and the weft threads 11w, 12w, 13 and 14w. It can also be seen from the figure that the same 11w and 13w wefts are thicker, and the 12w and 14w wefts are thinner.
  • the upper meridian units 13t, 14t have a course of 1 upper and lower and 2, that is, above 11w, under 12w and above 13w, 14w; the lower meridional units 17b and 18b are oriented at 3, 1 at 11w, 12w, under 13w and above 14w.
  • the above-mentioned latitude and longitude lines are cyclically reciprocated to form a second different warp and weft structure, and together with the first group of tissue structures form a complete woven texture, which runs through all the net bodies of the dry net.
  • Figure 12 is a front 3D view of the dry mesh interface. As shown in the figure, when the left warp threads 12t and 14t are inserted back, a warp of sufficient length is left as an interface ring to be inserted back and formed into the interface ring 12t-loops and 14t-loops at the left end of the dry mesh; When the warp threads 11t and 13t are inserted back, a warp of sufficient length is left to be inserted back and the interface loops 11t-loops and 13t-loops of the right end of the dry mesh are formed.
  • the 11t and 13t in the left warp are inserted back to the weft 11w to form the back loops 11t-rcturn and 13t-rcturn, leaving the vacancy to the interface ring formed by the right 11t and 13t; the 12t and 14t in the right warp Insert the back loop 12t-rcturn and 14t-rcturn close to the weft 13w when inserting, leaving a space for The interface ring formed by the left side 12t and 14t.
  • the interface can be docked, and the mesh body is connected into a ring shape by threading through the interface ring.
  • Figure 13 is a 3D view of the back of the dry mesh interface.
  • the warp threads 11t and 13t which are inserted back to the weft 11w on the left side of the dry mesh are respectively abutted with the back warp threads 15b and 17b, and the warp threads 12t and 14t form the interface ring respectively, and then interface with the back warp threads 16b and 18b respectively;
  • the warp threads 12t and 14t which are laterally abutted against the weft thread 13w are butted against the back warp threads 16b and 18b, respectively, and the warp threads 11t and 13t form the interface ring, respectively, which are butted against the back warp threads 15b and 17b.
  • All the warp threads that are inserted back must be bent back according to the warp formed by the dry mesh texture structure during the processing.
  • the interface area of the back insertion part is consistent with the texture structure of the dry mesh except for the docking break point. Since the upper and lower layers are independent of each other, the upper and lower meridians never cross each other, and the plug joints are always kept on the machine surface, and will not penetrate the net body to reach the sticker surface and damage the paper.
  • Figure 14 is a cross-sectional view of the FF of the dry mesh interface of Figure 7, the interface rings on the left and right sides are meshed and butted by one or more wires
  • the PIN) connection makes the dry net form a closed ring. Due to the complete consistency of the textured structure, any one of the upper layer or the lower layer can be used as the interface ring, and the two parallel warp threads can also be used by any one of them. Do interface ring. Because the two parallel warp widths are smaller, the interface gap formed by the conventional wide wire is narrower than the gap formed by the wide warp of 2 times width. At the same time, filling in the interface ring with two suitable 11p filler wires can effectively reduce the gap in the interface area and reduce the occurrence of paper impressions under the premise of ensuring the convenience of the Internet.
  • one unit in the upper layer is a rectangular warp beam with a rectangular cross section, and the other unit is a narrow warp line with a rectangular cross section of two parallel rows;
  • one unit in the lower layer is a narrow warp beam with two rectangular sections, and the other unit is 1
  • the root rectangle has a wide cross section.
  • the one wide warp of the upper layer and the one vertical warp of the lower layer are vertically superposed, and the widths of the upper and lower wide warp are substantially the same.
  • the two narrow warp threads of the upper layer are vertically overlapped with the two narrow warp threads of the lower layer, and the sum of the widths of the two narrow warp threads of the upper layer is substantially the same as the sum of the widths of the two narrow warp threads of the lower layer.
  • Embodiment 4 The two-layer structure is such that the cross section of the mesh has the following arrangement order: the upper meridian in the warp unit is 2 wide, 4 narrow, and the corresponding lower layer is 4 narrow and 2 wide (not shown).
  • Embodiment 5 The two-layer structure is such that the cross section of the mesh has the following arrangement order: the upper meridian in the warp unit is 3 wide, 6 narrow, and the corresponding lower layer is 6 narrow and 3 wide (not shown).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

一种工业织物，涉及工程纺织品技术领域。是用单丝材料的经线和单丝材料的纬线编织制成的网，经线为双层结构：其一个经线基本单元包括4个分单元，2个分单元在上层，另2个分单元在下层；上下层经线为垂直叠置关系，其中至少有2个单元含有并列的2根窄经线（1t，2t）；上面与下面或称正面与背面经线（3b，5b，6b）的纹理结构完全相同或一面旋转180度后与另一面完全相同。该工业织物结构稳定，整体一致性好，不易变形，耐用，上表面平整度好，表面不产生疵点，提高了织物的质量和强度，从而保证了造纸的质量和效率，减少了废品率，降低了成本。该工业织物适用于造纸用网，也可用作输送带，广泛适用于造纸、化工、医药、机械等行业。

Description

一种工业织物 技术领域
本发明涉及工程纺织品技术领域。
背景技术
纸张的制造的主要工艺流程经过纸张的成型、压榨(包括刮水、真空和脱水)及干燥，在干燥过程中，湿纸页被夹在干网和烘缸之间，湿纸页在烘缸表面被干网施加一定的压力，湿纸层中纤维在干网有压力下与烘缸表面形成较大的接触面积，在烘缸表面高温及表面压力的作用下，湿纸页中的水分被很快蒸发，从而达到纸页干燥的目的。随着造纸技术的发展，纸机制造商成功的发明了靴型压榨技术，这种技术可以将纸机压榨的区域成功扩大至原来的20倍，压区可达到100mm以上，纸机速度最快可达到3,000m/分钟，纸机速度提高的同时对干网制造技术的要求也随之提高。
纸机高速运行时，也就在纸机的运行速度超过800/分钟以上时，任何干网表面的疵点都会对纸页产生影响，甚至造成纸页断裂，导致停机。特别是在纸机的第一组和第二组单挂或单排烘缸部位，此时飞湿纸层水份较大，极易断裂。
Figure PCTCN2015093035-appb-000001
有干网为单层织物，有时常因一个线头跳出了上表面，而造成了数吨纸的报废，造成极大的浪费。
另外，由于结构不合理，也有的经常发生网边的张力与网体的张力不一致的，过松或过紧，都会影响纸机的正常运行和影响纸页的干燥效果，甚至会造成纸页边部破损或断裂并导致干网过早下机，严重影响生产，造成经济损失。现有的造纸用干网的结构，有的仅有一层，有的有两层，但是由干上下两层的结构不同，没有互补性，重视整体结构一致性差，故结构稳定性差，同时极易产生应力集中而断裂或破坏纸的上表面质量。
还有，干网在纸页干燥过程中，纸页必须保持平整，而纸机的干燥部设备要求干网必须必须具备有端接口，有的接口不平整，产生接口痕迹，也会产生像“泡泡纱”等凸凹不平的纸病。接口在安装过程中如果接口环张力一致性差，也会导 致干网产生折痕而影响造纸质量。干网接口透气度的过大或者过小也会导致纸页在高速运行中产生断纸，影响纸机的抄造效率。
目前市场中常见的干网设计主要分为两类。第一类是经线系统为上下穿透式走向并与纬线系统交织形成编织纹理；第二类是经线系统为上下两层扁丝设计，上层扁丝经线系统在上层与纬线系统交织；下层扁丝经线在下层与纬线系统交织。
干网接口无论是销环接口还是螺旋环接口，所有经线回插后在干网背面都在横向(CD)形成了4排对接断点。这些对接断点的线头在干网运行过程中由于损坏的纸页缠绕烘缸或导辊造成干网局部受力过大并被过度拉伸。过度拉伸后的干网在局部的背面对接断点会返回到干网的正面，从而导致扎伤纸页，在纸页表面形成孔洞。在韩国的造纸市场，就有造纸商曾经因为此种纸页疵点将所购干网全部退货，给造纸商和干网供应商都造成了巨大的损失。
凡此种种，在现有技术中都经常发生，人们都在想方设法想解决，但是一直没有得到彻底的解决。严重影响了造纸质量及效率的提高，由于废品率高，故大大增加了生产成本。
技术问题
本发明解决的主要技术问题是针对现有技术存在的问题提供了一种二业织物，通过对该工业织物结构的改进，使该工业织物结构稳定，整体一致性好，不易变形，耐用，提高了织物的质量和强度，从而保证了造纸的质量和效率，减少了废品率，大大降低了成本。本发明尤其适用于造纸用干网，也可用作输送带，广泛适用于造纸、化工、医药、机械等行业。
问题的解决方案
技术解决方案
本发明的技术方案是：一种二业织物，是用单丝材料经线和单丝材料的纬线编织制成的网，其特征在于；所述的经线结构或纹理为双层结构；上层经线在上层与纬线变织，下层经线在下层与纬线变织，且上层经线与下层经线并不交叉；其一个经线基本单元包括4个分单元，2个分单元在上层，另2个分单元在下层；上下层经线为垂直叠置关系，其中至少有2个单元含有并列的2根窄经线；所 述的经线具有扁状的横截面；
上面与下面或称正面与背面经线的纹理结构完全相同或一面旋转180度后与另一面完全相同。
优选的，所述的网为有端网。
优选的，所述的有端网的接口结构为销环接口或螺旋环接口。
优选的，所述的经线的横截面为矩形。
优选的，所述的双层结构为：上层1个单元为2根并列的窄经线，另一单元也为2根并列的窄经线；下层1个单元为2根并列的窄经线，另一单元为2根并列的窄经线；上层单元的2根窄经线分别与下层单元的2根窄经线为垂直叠置关系。
优选的，所述的双层结构为：上层经线一个单元为1根宽经线，另一个单元为2根窄经线；下层经线一个单元为2根窄经线，另一个单元为1根宽经线；上层的1根宽经线与下层的2根窄经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍；上层的2根窄经线与下层的1根宽经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍。
优选的，所述的双层结构为：上层经线一个单元为1根宽经线，另一个单元为2根窄经线；下层经线一个单元为2根窄经线，另一个单元为1根宽经线；上层的1根宽经线与下层的1根宽经线为垂直叠置关系；上层的2根并列的窄经线与下层的2根并列的窄经线为垂直叠置关系。
优选的，所述的双层结构为，网的横截面具有以下的排布顺序：经线单元中的上层经线为2宽、4窄，对应的下层为4窄、2宽；或上层经线为3宽、6窄，对应的下层为6窄、3宽。
优选的，所述的纬线截面为圆形或矩形，直径或厚度相同或不同。
所述的单丝材料为聚合物树脂。
优选的，所述的聚合物树脂为聚酯单丝、PPS单丝、PEEK、PCTA或尼龙聚合物单丝材料，其中一种或几种。
本发明的积极效果是：与已有技术对比，很好地解决了现有技术长期存在的问题。通过对该工业织物结构的改进，使该工业织物结构稳定，整体一致性好，不易变形，耐用，上表面平整度好，表面不产生疵点，提高了织物的质量和强 度，从而保证了造纸的质量和效率，减少了废品率，大大降低了成本。
本发明通过合理配置经线单元的搭配，保证正、背面纹理是完全相同或旋转180度后完全相同，相比传统正、背面纹理不同的设计，能够有效地消除正、背面纹理不同导致的应力差，显著提高网体纹理的一致性，获得更加光滑、平整的网体表面。
采用相互独立的上下层结构，上、下层经线永远不会发生交叉，插接接头始终保持在机器面，不会穿透网体到达贴纸面而损伤纸页。引入并列的双经线单元，相比单根宽经线，总宽度相同的并列双窄经线能够提供更多的经、纬交织点，能有效提高网体的纬向稳定性。可以获得灵活的插接方案或组合，同时通过增加接口环内的附加填丝，可以在保证上网简便的前提下，减小接口区的空隙，减少和避免纸页印痕的出现。
本发明尤其适用于造纸用干网，也可用作输送带，广泛适用于造纸、化工、医药、机械等行业。
以下结合实施例及附图作详述，但并不作为对本发明的限定。
对附图的简要说明
附图说明
图1是本发明的实施例1的结构示意图(网正面)。
图2是图1的后视图(网背面)。
图3是图1的A-A剖面图。
图4是图1的B-B剖面图。
图5是实施例1接口处的结构示意图。
图6是图5的后视图。
图7是图6的C-C剖面图。
图8是本发明的实施例2的结构示意图(网正面)。
图9是图8的后视图(网背面)。
图10是图8的D-D剖面图。
图11是图8的E-E剖面图。
图12是实施例2接口处的结构示意图。
图13是图12的后视图。
图14是图13的F-F剖面图。
为了表述清楚，各图中相同元素使用了相同的数字或字母编号。图中带箭头的L与R分别代表织物的左侧与右侧，仅用于方便读者识别图中的对应关系。
发明实施例
具体实施方式
本发明中所描述的干网是一种经线纹理为双层结构，上层经线在干网的上层与纬线交织，下层经线在干网的下层与纬线交织，且上层经线与下层经线永远不会产生交叉。所有经线纹理中的经线均具有非圆或大体为矩形的截面。纬线可以是圆的，也可以是矩形的或其他任何截面的形状。不同尺寸的纬线可同时应用在本织物中。
本发明中的干网织物是用单丝材料，根据设计的网纹结构编织而成。在干网织物设计方面则根据不同的纸机，不同的纸种以及满足用户的特殊需要等因素选择不同的合成聚合物树脂材料单丝。经常使用的单丝材料是聚酯单丝和PPS单丝，其它材料包括PEEK，PCTA，尼龙等聚合物。经线可以选择2种及以上不同种类的单丝，纬线也可以选择2种及以上不同种类的单丝。
本发明的正反面纹理完全相同或旋转180度后完全相同，因此无论正面或者背面均可作为贴纸面。
实施例1：
双层结构为：上层经线一个单元为1根宽经线，另一个单元为2根窄经线；下层经线一个单元为2根窄经线，另一个单元为1根宽经线；上层的1根宽经线与下层的2根窄经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍；上层的2根窄经线与下层的1根宽经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍。
即，上层1个单元为1根矩形截面宽经线4t，另一单元为2根并列的矩形截面窄经线1t和2t；下层1个单元为2根并列的矩形截面窄经线5b和6b，另一单元为1根矩形截面宽经线3b。，4个单元的经线按照表1中的纹理图交织形成干网织物经，且交替排列于整幅干网。
表1-实施例1的纹理图
图1和图2为表1中的干网织物正面的3D图和背面的3D图。正如3D图片所示，2根正面的窄经线1t+2t的宽度大致等于背面宽经线3b的宽度；同理，正面宽经线4t宽度大致等于背面经线5b+6b的宽度。例如：1t和2t的截面尺寸分别为0.36mm×0.53mm(厚度×宽度)，3b或4t的截面尺寸分别为0.36mm×1.06mm(厚度×宽度)。
从图1和图2还可以看出，正面的干网纹理与背面的干网纹理旋转180度后完全相同，相比传统正、背面纹理不同的设计，有效地消除正、背面纹理不同导致的应力差，显著提高网体纹理的一致性，获得更加光滑、平整的网体表面。图1中白色框中的1t，2t和4t经线的背面就是图2中白色框中的经线3b，5b和6b；同理，纬线2w和4w也可以看到。
图3为图1中的干网的A-A剖面图。这张3D图片显示的只是经线1t，2t和3b与纬线1w，2w，3w和4w之间的纹理结构。从图中可以清楚的看到1w和3w的线径较粗；2w和4w的线径较细，上层经线单元1t和2t的走向为3上1下，即：在1w，2w和3w之上，和在4w之下，下层经线单元3b为宽线，走向为1下1上2下，即：在1w之下，2w之上和3w，4w之下。上述经纬线循环住复，形成第一组经纬组织结构。
图4为图1中的干网的B-B剖面图，这张3D图片显示的只是经线4t，5b和6b与纬线1w，2w，3w和4w之间的纹理结构。同样从图中也可以看到相同的1w和3w纬线较粗，2w和4w纬线较细，上层经线单元4t的走向为1上1下和2上，即：在1w之上，2w之下和3w，4w之上；下层经线单元5b和6b走向为3下1上，即：1w，2w和3w之下和4w之上。上述经纬线结构循环往复，形成第二种不同的经纬组织结构并与第一组组织结构共同形成完整的编织纹理，贯穿干网的全部网体。
图5为干网接口正面3D图。如图所示，经线中的4t在干网的左侧回插时留出足够长度的经线作为接口环以后进行回插并形成干网左侧端部的接口环4t-loops；同理，经线中的1t和2t一起回插时留出足够长度的经线后回插并形成干网端部的右侧接口环1t/2t-loops。1t和2t在干网左侧回插时必须紧靠纬线3w回插形成回插 环1t/2t-return，并留出空位给干网右侧的1t和2t接口环；同理干网右侧的4t回插时必须紧靠纬线1w回插形成回插环4t-return，并留出空位给干网左侧的4t接口环。
图6为干网接口背面3D图。如图所示，干网左侧紧靠纬线3w回插的1t和2t经线与3b对接；经线4t形成接口环以后与5b和6b对接；在干网的右侧1t和2t形成接口环后回插与3b对接，4t紧靠纬线1w回插后与5b和6b对接，所有回插的经线都必须按照干网纹理结构在加工过程中形成的经线弯曲回插，回插部位的接口区域除了对接断点以外与干网纹理结构保持一致。由于上下层结构相互独立，上、下层经线永远不会发生交叉，插接接头始终保持在机器面，不会穿透网体到达贴纸面而损伤纸页。
图7为图6干网接口的C-C剖面图，左右两侧的接口环啮合对接后由一根或多根穿丝(图中为PIN)连接，使干网形成一个封闭的环形。同时，在接口环中填入2根合适尺寸的1p填丝，能够在保证上网简便快捷的前提下，有效减小接口区的空隙，减少和避免纸页印痕的出现，由于此种网纹结构的灵活性，接口型式不局限于图6、图7中显示的类型，还可以从左侧选择2根窄经线做接口环，右侧也选择2根窄经线做接口环；或从左侧选择1根宽经线做接口环，右侧也选择1根宽经线做接口环，左右都使用窄线做接口环时，还可以制作螺旋环接口。
实施例2：
双层结构为：上层1个单元为2根并列的窄经线，另一单元也为2根并列的窄经线；下层1个单元为2根并列的窄经线，另一单元为2根并列的窄经线；上层单元的2根窄经线分别与下层单元的2根窄经线为垂直叠置关系。
即，上层1个单元为2根并列的矩形截面窄经线11t和12t，另一单元也为2根并列的矩形截面窄经线13t和14t；下层1个单元为2根并列的矩形截面窄经线15b和16b、另一单元为2根并列的矩形截面窄经线17b和18b，4个经线单元按照表2中的纹理图交织形成干网织物，且交替排列于整幅干网。
图8和图9为表2中的干网织物正面的3D图和背面的3D图。正如3D图片所示，上层经线单元内的经线与下层经线单元内经线的宽度基本一致，且每层中不同经线单元内经线的宽度也基本一致。例如，11t和12t尺寸同为0.36×0.53mm，13t和14t尺寸同为0.36×0.53mm，15b和16b尺寸同为0.36×0.53mm，17b和18b尺寸 同为0.36x0.53mm。
表2-实施例２的纹理图
从图８和图９还可以看出，正面的干网纹理与背面的干网纹理完全相同，相比传统正、背面纹理不同的设计，有效地消除正、背面纹理不同导致的应力差，显著提高网体纹理的一致性，获得更加光滑、平整的网体表面。图8中白色框中的11t、12t和13t、14t经线的背面就是图9中白色框中的经线15b、16b和17b、18b；同理，纬线12w和14w也可以相应看到。
图10为图8中的干网D-D剖面图。这张3D图片显示的只是经线11t、12t和15b、16b与纬线11w、12w，13w和14w之间的纹理结构。从图中可以清楚的看到11w和13w的线径较粗；12w和14w的线径较细。上层经线单元11t和12t的走向为3上1下，即在11w、12w和13w之上，在14w之下。下层经线单元15b和16b的走向为1下1上2下，即：在11w之下，12w之上和13w、14w之下。上述经纬线循环往复，形成第一组经纬组织结构。
图11为图8中的干网的E-E剖面图。这张3D图片显示的只是经线13t、14t和17b、18b与纬线11w、12w，13和14w之间的纹理结构。同样从图中也可以看到相同的11w和13w纬线较粗，12w和14w纬线较细。上层经线单元13t，14t的走向为1上1下和2上，即在11w之上，12w之下和13w、14w之上；下层经线单元17b和18b走向为3下1上，即在11w、12w，13w之下和14w之上。上述经纬线结构循环往复，形成第二种不同的经纬组织结构，并与第一组组织结构共同形成完整的编织纹理，贯穿干网的全部网体。
图12为干网接口正面3D图。如图所示，左侧经线12t和14t回插时留出足够长度的经线作为接口环以后进行回插并形成干网左侧端部的接口环12t-loops和14t-loops；同理右侧经线11t和13t回插时留出足够长度的经线后回插并形成干网右侧端部的接口环11t-loops和13t-loops。左侧经线中的11t和13t回插时紧靠纬线11w形成回插环11t-rcturn和13t-rcturn，留出空位给右侧11t和13t形成的接口环；右侧经线中的12t和14t回插时紧靠纬线13w形成回插环12t-rcturn和14t-rcturn，留出空位给 左侧12t和14t形成的接口环。通过左右两侧形成接口环和紧靠纬线形成的空位，接口才得以对接上，并通过在接口环中穿入穿线将网体连接成一个环状。
图13为干网接口背面3D图。如图所示，干网左侧紧靠纬线11w回插的经线11t和13t分别与背面经线15b和17b对接，经线12t和14t形成接口环以后分别与背面经线16b和18b对接；干网的右侧紧靠纬线13w回插的经线12t和14t分别与背面经线16b和18b对接，经线11t和13t形成接口环以后分别与背面经线15b和17b对接。所有回插的经线都必须按照干网纹理结构在加工过程中形成的经线弯曲回插，回插部位的接口区域除了对接断点以外与干网纹理结构保持一致。由于上下层结构相互独立，上、下层经线永远不会发生交叉，插接接头始终保持在机器面，不会穿透网体到达贴纸面而损伤纸页。
图14为图7干网接口的F-F剖面图，左右两侧的接口环啮合对接后由一根或多根穿丝
Figure PCTCN2015093035-appb-000002
图中为PIN)连接，使干网形成一个封闭的环形，由于网纹结构的完全一致性，可使用上层或下层中的任一层做接口环，两根并列的经线也可由其中任一根来做接口环。因为两根并列的经线宽度较小，相比传统宽线制作的接口环，其形成的接口空隙相比2倍宽度的宽经线形成的空隙要窄一半。同时，在接口环中填入2根合适尺寸的11p填丝，能够在保证上网简便快捷的前提下，更有效减小接口区的空隙，减少和避免纸页印痕的出现。
实施例3：
本发明实施例3是上层1个单元为1根矩形截面宽经线，另一单元为2根并列的矩形截面窄经线；下层1个单元为2根并列的矩形截面窄经线，另一单元为1根矩形截面宽经线。其中上层的1根宽经线与下层的1根宽经线为垂直叠置关系，且上、下层宽经线的宽度基本相同。上层的2根窄经线与下层的2根窄经线为垂直叠置关系，且上层2根窄经线的宽度总和与下层2根窄经线的宽度总和基本相同。
实施例４：所述的双层结构为，网的横截面具有以下的排布顺序：经线单元中的上层经线为2宽、4窄、对应的下层为4窄、2宽(图略)。
实施例5：所述的双层结构为，网的横截面具有以下的排布顺序：经线单元中的上层经线为3宽、6窄、对应的下层为6窄、3宽(图略)。

Claims (10)

  1. 一种工业织物，是用单丝材料经线和单丝材料的纬线编织制成的网，其特征在于：所述的经线结构或纹理为双层结构：上层经线在上层与纬线交织，下层经线在下层与纬线交织，且上层经线与下层经线并不交叉：其一个经线基本单元包括4个分单元，2个分单元在上层，另2个分单元在下层：上下层经线为垂直叠置关系，其中至少有2个单元含有并列的2根窄经线：所述的经线具有扁状的横截面：
    上面与下面或称正面与背面经线的纹理结构壳全相同或一面旋转180度后与另一面壳全相同。
  2. 根据权利要求1所述的一种工业织物，其特征在于所述的网为有端网。
  3. 根据权利要求2所述的一种工业织物，其特征在于所述的有端网的接口结构为销环接口或螺旋环接口。
  4. 根据权利要求1所述的一种工业织物，其特征在于所述的经线的横截面为矩形。
  5. 根据权利要求1或2所述的一种工业织物，其特征在于所述的双层结构为：上层经线一个单元为1根宽经线，另一个单元为2根窄经线；下层经线一个单元为2根窄经线，另一个单元为1根宽经线；上层的1根宽经线与下层的2根窄经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍：上层的2根窄经线与下层的1根宽经线为垂直叠置关系，宽经线的宽度为2根窄经线宽度总和的0.6--1.5倍。
  6. 根据权利要求1或2所述的一种工业织物，其特征在于所述的双层结构为：上层1个单元为2根并列的窄经线，另一单元也为2根并列的窄经线；下层1个单元为2根并列的窄经线，另一单元为2根并列的窄经线：上层单元的2根并列的窄经线分别与下层单元的2根并列的窄经线为垂直叠置关系。
  7. 根据权利要求1或2所述的一种工业织物，其特征在于所述的双层结构为：上层经线一个单元为1根宽经线，另一个单元为2根窄经线；下层经线一个单元为2根窄经线，另一个单元为1根宽经线；上层的1根宽经线与下层的1根宽经线为垂直叠置关系；上层的2根窄经线与下层的2根窄经线为垂直叠置关系。
  8. 根据权利要求1或2所述的一种工业织物，其特征在于所述的所述的双层结构为：网的横截面具有以下的排布顺序：经线单元中的上层经线为2宽、4窄，对应的下层为4窄、2宽；或上层经线为3宽、6窄、对应的下层为6窄、3宽。
  9. 根据权利要求1中的一种工业织物，其特征在于所述的纬线截面为圆形或矩形，直径或厚度相同或不同。
  10. 根据权利要求1所述的一种工业织物，其特征在于所述的单丝材料为聚合物树脂，所述的聚合物树脂为聚酯单丝、PPS单丝、PEEK、PCTA或尼龙单丝，其中一种或几种。
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