CN116590804A - Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile - Google Patents

Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile Download PDF

Info

Publication number
CN116590804A
CN116590804A CN202310873453.4A CN202310873453A CN116590804A CN 116590804 A CN116590804 A CN 116590804A CN 202310873453 A CN202310873453 A CN 202310873453A CN 116590804 A CN116590804 A CN 116590804A
Authority
CN
China
Prior art keywords
stage
fiber
geotextile
hydrophilic
profiled
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202310873453.4A
Other languages
Chinese (zh)
Other versions
CN116590804B (en
Inventor
田会双
刘庆备
梅李超
张�林
高欢
赵润
王恒宇
张旭
王蒙
张鹏飞
宋飞虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu New Vision Advanced Functional Fiber Innovation Center Co ltd
Original Assignee
Jiangsu New Vision Advanced Functional Fiber Innovation Center Co ltd
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 Jiangsu New Vision Advanced Functional Fiber Innovation Center Co ltd filed Critical Jiangsu New Vision Advanced Functional Fiber Innovation Center Co ltd
Priority to CN202310873453.4A priority Critical patent/CN116590804B/en
Publication of CN116590804A publication Critical patent/CN116590804A/en
Application granted granted Critical
Publication of CN116590804B publication Critical patent/CN116590804B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
    • D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic
    • 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
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204—Geotextiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Multicomponent Fibers (AREA)
  • Woven Fabrics (AREA)

Abstract

The application belongs to the technical field of geotextiles, and relates to a special-shaped fiber with a multi-stage wicking structure and application thereof to geotextiles, wherein the special-shaped fiber with the multi-stage wicking structure has an n+1-stage branching structure; the n+1-level branch structure is obtained by forming new branches on each branch of the n-level branch structure, wherein n is more than or equal to 1; the application is as follows: hydrophilic surface treatment is carried out on the profiled fiber with the multi-stage wicking structure to obtain hydrophilic profiled fiber, hydrophilic profiled fiber or hydrophilic profiled fiber and non-profiled geotextile are used as weft yarns, non-profiled geotextile is used as warp yarns, and the high-permeability geotextile is obtained through weaving. The special-shaped fiber with the multi-stage wicking structure is used as weft yarn and warp yarn of geotextile with non-special-shaped structure to be woven into geotextile with wicking function, a large number of micro-pipelines are formed inside the geotextile, strength of the geotextile is guaranteed, and flatness and water permeability of the geotextile are improved.

Description

Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile
Technical Field
The application belongs to the technical field of geotextiles, and relates to a special-shaped fiber with a multi-stage wicking structure and application of the special-shaped fiber to geotextiles.
Background
The geotextile is also called geotextile, and is a breathable and permeable geotextile material formed by needling or braiding synthetic fibers (polyester, polypropylene) or the like. The common permeable geotextile is divided into a woven permeable geotextile and a non-woven permeable geotextile, and has the main application characteristics of excellent filtering, isolating, reinforcing and protecting effects, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance and corrosion resistance.
In civil engineering, when water flows into a coarse soil layer from a fine soil layer, water flows through the fine soil layer by utilizing good air permeability and water permeability of permeable geotechnical cloth, thereby effectively intercepting soil particles, fine sand, small stones and the like so as to keep the stability of the water and soil engineering. The permeable geotextile also has good water conductivity, and can form a drainage channel in the soil body to drain redundant liquid and gas in the soil body structure.
In order to enhance the drainage effect in the traditional geotechnical drainage cloth, the drainage performance is generally ensured in a mode of integrating drainage pipelines in the geotechnical cloth, and the defects of few drainage pipelines, general water absorption performance and the like exist.
Patent CN202221274719.0 discloses a directional drainage anti-seepage composite membrane structure, which has the advantages of complex structure, high processing difficulty, high cost, low microporosity of section and low water absorption and drainage efficiency.
Patent CN202210332532.X discloses a composite directional drainage composite film, wherein the material of the water guide ribs is PP, PE, PET, PA fiber or plastic material, and the water guide ribs are special-shaped fiber after spinning and stretching, or special-shaped ribs formed by melt extrusion or woven round ropes. The special-shaped ribs are irregularly round, 3-5 irregularly round shapes are embedded, the water guide ribs are made of 95% of PP or PET materials, and 5% of auxiliary materials. The profiled fiber described in the patent has low cross-sectional microporosity and insufficient water absorption and water guiding effects. Meanwhile, after the fibers are subjected to hydrophilic modification, the fibers are easy to store water, and the water drainage effect is poor.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a profiled fiber with a multi-stage wicking structure and application of the profiled fiber to geotextiles.
In order to achieve the above purpose, the application adopts the following technical scheme:
a shaped fiber with a multi-stage wicking structure having an n+1-stage branching structure;
the n+1-level branch structure is obtained by forming new branches on each branch of the n-level branch structure, wherein n is more than or equal to 1.
The special-shaped fiber has a multi-stage branch structure, so that branches of the fiber cross section are not easy to fall under external pressure, thereby reducing or avoiding the enlargement and disappearance of capillary tubes, and further guaranteeing the stable water absorption and water guide capacity of the special-shaped fiber.
As a preferable technical scheme:
according to the profiled fiber with the multi-stage wicking structure, the profiled fiber with the multi-stage wicking structure is provided with the two-stage branch structure, the length of the two-stage branch structure is 60-150% of that of the one-stage branch structure, and the profiled fiber is formed into capillaries along the fiber direction, the capillaries are kept open and not closed, the water absorption path is ensured to be smooth, and drainage is accelerated.
The profiled fiber with the multi-stage wicking structure has the advantages that the branch number of the primary branch structure is more than 2, and the branch number of the secondary branch structure is more than 2.
The profiled fiber with the multi-stage wicking structure is sheath-core fiber, and the mass ratio of the sheath layer to the core layer is 30-70:70-30.
The profiled fiber with the multi-stage wicking structure has fineness (namely fineness) of more than or equal to 100tex.
The profiled fiber with the multistage wicking structure has the advantages that the sheath raw material is PP and hydrophilic modified PP master batch, and the core raw material is PP; the hydrophilic cortex is beneficial to the hydrophilic surface of the fiber, so that the water absorption performance of the fiber is improved; meanwhile, the core layer is water-repellent, the core layer of the fiber does not absorb water or store water, so that the fiber is beneficial to guiding and draining water from the geotechnical structure, and the geotechnical structure dries quickly;
the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and double-screw melt blending mode;
the grafting rate of the PP grafted PVA is 5-10%.
According to the profiled fiber with the multistage wicking structure, the mass ratio of the hydrophilic modified PP master batch in the sheath raw material is 1-5%;
the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 20-30%.
The application also provides a preparation method of the high-permeability geotextile, which uses hydrophilic special-shaped fibers or hydrophilic special-shaped fibers and non-special-shaped structure geotextile as weft yarns, uses non-special-shaped structure geotextile as warp yarns, and adopts weaving equipment (such as a rapier loom and the like) to weave the high-permeability geotextile;
the hydrophilic profiled fiber is obtained by performing hydrophilic surface treatment (hydrophilic surface treatment by using a hydrophilic oil agent such as STANTEX S6327) on the profiled fiber with the multistage wicking structure;
the mass ratio of the hydrophilic special-shaped fiber in the weft yarn is not less than 10 percent.
As a preferable technical scheme:
the preparation method of the high-permeability geotextile has the gram weight less than or equal to 600g/m 2 The water permeability is more than or equal to 1.2kg/m 2 （ASTM D4716/D4716M-14, 2013）。
Advantageous effects
(1) The unique two-stage branch design of the application ensures that the fiber is not easy to deform or branch to lodge under the superposition of the fiber or the external pressure, and the capillary is not easy to be blocked;
(2) The unique two-stage branch design and hydrophilic treatment enable the fiber to keep smooth and water guiding functions of the capillary tube all the time in the geotextile processing and using process;
(3) According to the application, through hydrophilic modification and molding design, the special-shaped fiber with the multi-stage wicking structure is prepared, and is woven into geotextile with wicking function as weft yarns and warp yarns of geotextile with non-special-shaped structure, so that a large number of micro-pipelines are formed inside, the strength is ensured, and meanwhile, the flatness and the water permeability are improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a profiled fiber having a two-stage wicking structure in accordance with example 1 of the present application;
FIG. 2 is a schematic diagram of a first-stage branch structure in a two-stage branch structure according to embodiment 1 of the present application;
FIG. 3 is a schematic diagram of a two-stage branching structure in the two-stage branching structure according to embodiment 1 of the present application;
FIG. 4 is a schematic cross-sectional view of a profiled fiber having a two-stage wicking structure in accordance with example 2 of the application;
FIG. 5 is a schematic diagram of a first-stage branch structure in a two-stage branch structure according to embodiment 2 of the present application;
FIG. 6 is a schematic diagram of a two-stage branching structure in a two-stage branching structure according to embodiment 2 of the present application;
FIG. 7 is a schematic cross-sectional view of a profiled fiber having a two-stage wicking structure in accordance with example 3 of the application;
FIG. 8 is a schematic diagram of a first-stage branch structure in a two-stage branch structure according to embodiment 3 of the present application;
FIG. 9 is a schematic diagram of a two-stage branching structure in a two-stage branching structure according to embodiment 3 of the present application;
FIG. 10 is a schematic cross-sectional view of a profiled fiber having a two-stage wicking structure in accordance with example 4 of the application;
FIG. 11 is a schematic diagram of a first-stage branch structure in a two-stage branch structure according to embodiment 4 of the present application;
fig. 12 is a schematic diagram of a two-stage branching structure in the two-stage branching structure of embodiment 4 of the present application.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The non-special-shaped structure geotextile in the embodiment of the application is derived from fiber products limited company of Kyowa city, and the commodity mark is polypropylene FDY solid PP yarn 900D.
Manufacturers of skin and core PP raw materials in examples: zhejiang petrochemical Co., ltd., model HP550J.
The commercial brand of the hydrophilically modified PP master batch is as follows: PFA05 manufactured by Guangdong color Co., ltd.
The amount of water penetration in the examples of the present application was measured using ASTM D4716/D4716M-14,2013.
Example 1
The profiled fiber with the two-stage wicking structure has the fineness of 600tex, is sheath-core fiber, and has the mass ratio of the sheath layer to the core layer of 70:30; the raw materials of the skin layer are PP and hydrophilic modified PP master batches, and the raw materials of the core layer are PP;
wherein the mass ratio of the hydrophilic modified PP master batch in the cortex raw material is 2%; the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and twin-screw melt blending mode, wherein the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 20%, and the grafting rate of the PP grafted PVA is 10%;
as shown in fig. 1 to 3, the profiled fiber having the two-stage wicking structure has a two-stage branching structure; the secondary branch structure is obtained by forming new branches on each branch of the primary branch structure respectively; the length of the primary branch structure is 0.6mm, and the length of the secondary branch structure is 0.2mm; the branch number of the first-stage branch structure is 3, and the branch number of the second-stage branch structure is 3; the width of the secondary branch structure is the same as that of the primary branch structure, and the two branch structures are 0.2mm.
Example 2
The profiled fiber with the two-stage wicking structure has the fineness of 600tex, is sheath-core fiber, and has the mass ratio of the sheath layer to the core layer of 50:50; the raw materials of the skin layer are PP and hydrophilic modified PP master batches, and the raw materials of the core layer are PP;
wherein the mass ratio of the hydrophilic modified PP master batch in the cortex raw material is 3%; the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and twin-screw melt blending mode, wherein the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 30%, and the grafting rate of the PP grafted PVA is 10%;
as shown in fig. 4 to 6, the profiled fiber having the two-stage wicking structure has a two-stage branching structure; the secondary branch structure is obtained by forming new branches on each branch of the primary branch structure respectively; the length of the primary branch structure is 0.6mm, and the length of the secondary branch structure is 0.2mm; the branch number of the first-stage branch structure is 5, and the branch number of the second-stage branch structure is 2; the width of the secondary branch structure is the same as that of the primary branch structure, and the two branch structures are 0.4mm.
Example 3
The profiled fiber with the two-stage wicking structure has the fineness of 600tex, is sheath-core fiber, and has the mass ratio of the sheath layer to the core layer of 30:70; the raw materials of the skin layer are PP and hydrophilic modified PP master batches, and the raw materials of the core layer are PP;
wherein the mass ratio of the hydrophilic modified PP master batch in the cortex raw material is 5%; the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and twin-screw melt blending mode, wherein the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 25%, and the grafting rate of the PP grafted PVA is 8%;
as shown in fig. 7 to 9, the profiled fiber having the two-stage wicking structure has a two-stage branching structure; the secondary branch structure is obtained by forming new branches on each branch of the primary branch structure respectively; the length of the primary branch structure is 3mm, and the length of the secondary branch structure is 0.4mm; the branch number of the first-stage branch structure is 6, and the branch number of the second-stage branch structure is 3; the width of the secondary branch structure is the same as that of the primary branch structure, and the two branch structures are 0.2mm.
The special-shaped fibers with the multi-stage wicking structure in the embodiments 1-3 are mainly used under the condition that the soil pressure above is large, the secondary branching structure is thick, lodging is not easy to occur, and the smoothness of the capillary is kept.
Example 4
The profiled fiber with the two-stage wicking structure has the fineness of 600tex, is sheath-core fiber, and has the mass ratio of the sheath layer to the core layer of 50:30; the raw materials of the skin layer are PP and hydrophilic modified PP master batches, and the raw materials of the core layer are PP;
wherein the mass ratio of the hydrophilic modified PP master batch in the cortex raw material is 1 percent; the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and twin-screw melt blending mode, wherein the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 28%, and the grafting rate of the PP grafted PVA is 6%;
as shown in fig. 10 to 12, the profiled fiber having the two-stage wicking structure has a two-stage branching structure; the secondary branch structure is obtained by forming new branches on each branch of the primary branch structure respectively; the length of the primary branch structure is 3mm, and the length of the secondary branch structure is 0.4mm; the branch number of the first-stage branch structure is 6, and the branch number of the second-stage branch structure is 3; the width of the primary branch structure is 0.2mm, and the width of the secondary branch structure is 0.2mm.
The secondary branching structure of the profiled fiber with the multi-stage wicking structure of example 4 is relatively thinner, and the branching points on the primary structure are staggered, so that the profiled fiber is suitable for being used under the condition that the upper soil pressure is not large, and the capillary is kept better, and the diameter of the capillary is larger, thereby being beneficial to water absorption and drainage.
Example 5
The preparation method of the geotextile with high water permeability comprises the following steps:
(1) Carrying out hydrophilic surface treatment on the profiled fiber with the two-stage wicking structure prepared in the embodiment 1 by adopting a hydrophilic oil agent STANTEX S6327 to obtain a hydrophilic profiled fiber;
(2) Taking the 600tex hydrophilic special-shaped fiber obtained in the step (1) as weft yarn, wherein the weft yarn density is 4/10 cm, taking PP fiber with the fineness of 900D (100 tex) as warp yarn, and weaving by a rapier loom, wherein the warp yarn density is 100/10 cm, so as to obtain the high-permeability geotextile.
The gram weight of the prepared high water permeability geotextile is 124g/m 2 The water permeability is 1.25kg/m 2 。
Example 6
The preparation method of the geotextile with high water permeability comprises the following steps:
(1) Carrying out hydrophilic surface treatment on the profiled fiber with the two-stage wicking structure prepared in the embodiment 2 by adopting a hydrophilic oil agent STANTEX S6327 to obtain a hydrophilic profiled fiber;
(2) Taking the hydrophilic 600tex special-shaped fiber obtained in the step (1) as weft yarn, wherein the weft yarn density is 50 pieces/10 cm, taking PP fiber with the fineness of 900D (100 tex) as warp yarn, and weaving by a rapier loom, wherein the warp yarn density is 15 pieces/10 cm, so as to obtain the high-permeability geotextile.
The gram weight of the prepared high water permeability geotextile is 315g/m 2 The water permeability is 2.58kg/m 2 。
Example 7
The preparation method of the geotextile with high water permeability comprises the following steps:
(1) Carrying out hydrophilic surface treatment on the profiled fiber with the two-stage wicking structure prepared in the embodiment 3 by adopting a hydrophilic oil agent STANTEX S6327 to obtain a hydrophilic profiled fiber;
(2) Taking the hydrophilic 600tex special-shaped fiber obtained in the step (1) as weft yarn, wherein the weft yarn density is 18 pieces/10 cm, taking PP fiber with the fineness of 900D (100 tex) as warp yarn, and weaving by a rapier loom, wherein the warp yarn density is 40 pieces/10 cm, so as to obtain the high-permeability geotextile.
The gram weight of the prepared high water permeability geotextile is 148g/m 2 The water permeability is 1.35kg/m 2 。
Example 8
The preparation method of the geotextile with high water permeability comprises the following steps:
(1) Carrying out hydrophilic surface treatment on the profiled fiber with the two-stage wicking structure prepared in the example 4 by adopting a hydrophilic oil agent STANTEX S6327 to obtain a hydrophilic profiled fiber;
(2) The hydrophilic 600tex special-shaped fiber obtained in the step (1) and the PP fiber with the fineness of 900D (100 tex) are stranded to serve as weft yarns, the ply number ratio of the 600tex hydrophilic special-shaped fiber to the 900D (100 tex) PP fiber in the weft yarns is 1:6, the mass ratio of the two fibers is 1:1, the density of the stranded weft yarns is 30/10 cm, the PP fiber with the fineness of 900D (100 tex) is used as warp yarn, the warp yarn density is 20/10 cm, and a rapier loom is used for weaving, so that the geotextile with high water permeability is obtained.
The gram weight of the prepared high-permeability geotextile is 380 g/m 2 The water permeability is 2.05kg/m 2 。
The production method of the profiled fiber with the two-stage wicking structure in the above embodiments 1 to 4 of the present application is as follows:
using a single screw extruder with metering pump and extrusion die having a diameter of about 36; heating a screw extruder, and distributing the temperature of the extruder from one zone to five zones, a metering pump and the temperature of a die head: 150 ℃,190 ℃,200 ℃,200 ℃,200 ℃,210 ℃,220 ℃.
The template for the special-shaped fiber is arranged in the die head, 4 holes are formed in the template, and the cross section of the holes in the template is identical to that of the special-shaped fiber.
Weighing materials according to a formula, and then uniformly mixing;
starting a screw extruder after the temperature rises to the required temperature, wherein the screw frequency is 15 Hz, and the metering pump is 12 Hz; putting the materials into a hopper of a single screw machine, plasticizing, melting, mixing, and metering and extruding the materials out of a template by a metering pump to form a melt flow.
After the melt flows out of the template, cooling and solidifying with water or other inert solution, and drawing by using a drawing machine; and then stretching by 3-8 times through a hot water tank and a second tractor, shaping at high temperature through a hot box, and cooling and rolling to obtain the special-shaped fiber.

Claims (9)

1. A shaped fiber having a multi-stage wicking structure, characterized in that: the profiled fiber with the multi-stage wicking structure has an n+1-stage branching structure;
the n+1-level branch structure is obtained by forming new branches on each branch of the n-level branch structure, wherein n is more than or equal to 1.
2. The profiled fiber with a multi-stage wicking structure of claim 1, wherein the profiled fiber with a multi-stage wicking structure has a two-stage branching structure with a length of 60-150% of a length of the one-stage branching structure.
3. A shaped fiber having a multi-stage wicking structure according to claim 2, wherein the number of branches of the primary branching structure is greater than 2 and the number of branches of the secondary branching structure is greater than 2.
4. The profiled fiber with a multi-stage wicking structure of any one of claims 1-3, wherein the profiled fiber with a multi-stage wicking structure is a sheath-core fiber, and the mass ratio of sheath to core is 30-70:70-30.
5. The profiled fiber with a multi-stage wicking structure of claim 4, wherein the profiled fiber with a multi-stage wicking structure has a fineness of greater than or equal to 100tex.
6. The profiled fiber with a multi-stage wicking structure of claim 5, wherein the sheath material is PP and hydrophilically modified PP masterbatch and the core material is PP;
the hydrophilic modified PP master batch is prepared by extruding and granulating PP and PP grafted PVA in a solid phase mixing and double-screw melt blending mode;
the grafting rate of the PP grafted PVA is 5-10%.
7. The profiled fiber with the multi-stage wicking structure according to claim 6, wherein the mass ratio of the hydrophilically modified PP master batch in the sheath material is 1-5%;
the mass ratio of the PP grafted PVA in the hydrophilic modified PP master batch is 20-30%.
8. A preparation method of a high-permeability geotextile is characterized by comprising the following steps: taking hydrophilic special-shaped fibers or hydrophilic special-shaped fibers and non-special-shaped structure geotextiles as weft yarns, and taking non-special-shaped structure geotextiles as warp yarns to obtain high-permeability geotextiles through weaving;
the hydrophilic profiled fiber is obtained by hydrophilic surface treatment of the profiled fiber with the multi-stage wicking structure according to any one of claims 1 to 7;
the mass ratio of the hydrophilic special-shaped fiber in the weft yarn is not less than 10 percent.
9. The method for preparing a high water permeability geotextile of claim 8, wherein the high water permeability geotextile has a grammage of 600g/m or less 2 The water permeability is more than or equal to 1.2kg/m 2 。
CN202310873453.4A 2023-07-17 2023-07-17 Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile Active CN116590804B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310873453.4A CN116590804B (en) 2023-07-17 2023-07-17 Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310873453.4A CN116590804B (en) 2023-07-17 2023-07-17 Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile

Publications (2)

Publication Number Publication Date
CN116590804A true CN116590804A (en) 2023-08-15
CN116590804B CN116590804B (en) 2024-03-22

Family

ID=87606593

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310873453.4A Active CN116590804B (en) 2023-07-17 2023-07-17 Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile

Country Status (1)

Country Link
CN (1) CN116590804B (en)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1046361A (en) * 1989-04-04 1990-10-24 伊斯曼柯达公司 Fiber that can spontaneously transporting fluids
JPH06136620A (en) * 1992-10-26 1994-05-17 Toray Ind Inc Production of sheath-core type hollow conjugate fiber
JPH0941204A (en) * 1995-07-31 1997-02-10 Toray Ind Inc Stocking excellent in hygroscopicity
JPH0941221A (en) * 1995-07-28 1997-02-10 Toray Ind Inc Synthetic fiber excellent in comfortableness
CN1195040A (en) * 1997-01-20 1998-10-07 智索股份有限公司 Heat-fusible composite fiber, and non-woven fabrics and absorbent products produced from same
US6093491A (en) * 1992-11-30 2000-07-25 Basf Corporation Moisture transport fiber
JP2000220029A (en) * 1999-01-28 2000-08-08 Unitika Ltd Polyester modified cross-section yarn and combined filament yarn
KR20050043393A (en) * 2003-11-06 2005-05-11 주식회사 코오롱 A polyamide yarn with excellent dry and absorption for sweat, and a process of preparing the same
CN101200816A (en) * 2007-07-03 2008-06-18 赵丹青 Quatrefoil skin-core dual-component fibre or filament having both antibiotic and quick drying functions
US20090053521A1 (en) * 2004-02-23 2009-02-26 Hironori Goda Synthetic staple fibers for an air-laid nonwoven fabric
CN101851813A (en) * 2010-05-24 2010-10-06 荣盛石化股份有限公司 Modified polyester fiber with rigid inner layer and flexible outer layer
CN101982572A (en) * 2010-11-22 2011-03-02 上海贵达科技有限公司 Moisture absorption and perspiration fiber with hydrophilic function
CN110938889A (en) * 2019-12-09 2020-03-31 福建锦江科技有限公司 Special-shaped chinlon 6 filament and preparation method thereof
CN111519274A (en) * 2020-01-20 2020-08-11 浙江新维狮合纤股份有限公司 Production process of superfine fiber with super-soft bi-component sheath-core structure and superfine fiber thereof
CN111775533A (en) * 2019-04-03 2020-10-16 上海水星家用纺织品股份有限公司 Honeycomb type element structure sound insulation fabric and preparation method thereof
CN112352070A (en) * 2018-06-05 2021-02-09 尼科伦有限公司 Cross section drainage fabric

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1046361A (en) * 1989-04-04 1990-10-24 伊斯曼柯达公司 Fiber that can spontaneously transporting fluids
JPH06136620A (en) * 1992-10-26 1994-05-17 Toray Ind Inc Production of sheath-core type hollow conjugate fiber
US6093491A (en) * 1992-11-30 2000-07-25 Basf Corporation Moisture transport fiber
JPH0941221A (en) * 1995-07-28 1997-02-10 Toray Ind Inc Synthetic fiber excellent in comfortableness
JPH0941204A (en) * 1995-07-31 1997-02-10 Toray Ind Inc Stocking excellent in hygroscopicity
CN1195040A (en) * 1997-01-20 1998-10-07 智索股份有限公司 Heat-fusible composite fiber, and non-woven fabrics and absorbent products produced from same
JP2000220029A (en) * 1999-01-28 2000-08-08 Unitika Ltd Polyester modified cross-section yarn and combined filament yarn
KR20050043393A (en) * 2003-11-06 2005-05-11 주식회사 코오롱 A polyamide yarn with excellent dry and absorption for sweat, and a process of preparing the same
US20090053521A1 (en) * 2004-02-23 2009-02-26 Hironori Goda Synthetic staple fibers for an air-laid nonwoven fabric
CN101200816A (en) * 2007-07-03 2008-06-18 赵丹青 Quatrefoil skin-core dual-component fibre or filament having both antibiotic and quick drying functions
CN101851813A (en) * 2010-05-24 2010-10-06 荣盛石化股份有限公司 Modified polyester fiber with rigid inner layer and flexible outer layer
CN101982572A (en) * 2010-11-22 2011-03-02 上海贵达科技有限公司 Moisture absorption and perspiration fiber with hydrophilic function
CN112352070A (en) * 2018-06-05 2021-02-09 尼科伦有限公司 Cross section drainage fabric
CN111775533A (en) * 2019-04-03 2020-10-16 上海水星家用纺织品股份有限公司 Honeycomb type element structure sound insulation fabric and preparation method thereof
CN110938889A (en) * 2019-12-09 2020-03-31 福建锦江科技有限公司 Special-shaped chinlon 6 filament and preparation method thereof
CN111519274A (en) * 2020-01-20 2020-08-11 浙江新维狮合纤股份有限公司 Production process of superfine fiber with super-soft bi-component sheath-core structure and superfine fiber thereof

Also Published As

Publication number Publication date
CN116590804B (en) 2024-03-22

Similar Documents

Publication Publication Date Title
CN108691071B (en) Polypropylene reinforced filtering geosynthetic fabric and manufacturing method thereof
CA3005917C (en) Modified fiber and preparation method therefor
CN103788636B (en) A kind of polymer blends manufactured for high fineness high intensity non-figured type PA6 superfine fibre
CN102864507A (en) Preparation method and product of melt direct spinning superfine porous differential polyester fiber
WO2019119736A1 (en) High strength two-component composite filament with skin-core structure and preparation method therefor
CN104178829A (en) Composite large-diameter monofilament with variable cross section and skin core structure as well as manufacturing method and application thereof
CN110747582A (en) Self-reinforced polypropylene composite plastic geotextile and preparation method thereof
CN104492160A (en) Ultra-high-molecular-weight polyethylene monofilament filter cloth and preparation method thereof
CN116590804B (en) Profiled fiber with multistage wicking structure and application of profiled fiber to geotextile
CN214992150U (en) Geotextile and geotextile bag for hydraulic engineering
CN106564252B (en) High-performance geotextile and preparation method thereof
CN106364069B (en) High-performance composite geotextile and preparation method thereof
CN208980864U (en) A kind of polypropylene reinforcement filtering geosynthetic fabrics
KR20160130259A (en) Reinforcing textile structure for composite materials
JPH0610233A (en) Ultrahigh molecular weight polyethylene woven fabric
CN112007428B (en) Composite sintered plate, preparation method thereof and sintered plate type dust remover
CN109594192A (en) A kind of fire-retardant geotextiles and preparation method thereof
CN204023023U (en) Varied cross section major diameter skin-core structure composite monofilament
CN112829408A (en) Preparation method of high-strength anti-aging anti-clogging reinforced composite geotextile
CN106541629B (en) Waterproof geotextile and preparation method thereof
CN111058191A (en) High-strength short fiber needle-punched geotextile and preparation method thereof
CN104499152B (en) A kind of PFY surpasses and spins the manufacture method of PFY in cotton face fabric and fabric
CN109594170A (en) A kind of waterproof geotextiles and preparation method thereof
JP3591063B2 (en) Permeable civil engineering sheet and method for producing the same
CN114351463B (en) Composite adhesive, application thereof, anti-water-scattering filter nonwoven fabric and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant