CN112709076A - Processing method and system for high-strength soft cloth base of abrasive belt - Google Patents

Processing method and system for high-strength soft cloth base of abrasive belt Download PDF

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Publication number
CN112709076A
CN112709076A CN202011546316.2A CN202011546316A CN112709076A CN 112709076 A CN112709076 A CN 112709076A CN 202011546316 A CN202011546316 A CN 202011546316A CN 112709076 A CN112709076 A CN 112709076A
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Prior art keywords
base
cloth base
cloth
fabric
drying
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Inventor
卢武
刘哲
齐守保
富凯
张晓月
宋强
赵艳玲
袁野
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Suzhou Far East Abrasives Co ltd
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Suzhou Far East Abrasives Co ltd
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Priority to CN202011546316.2A priority Critical patent/CN112709076A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/08—Equipment for after-treatment of the coated backings, e.g. for flexing the coating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/142—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention relates to a processing method of a high-strength soft cloth base for an abrasive belt, which comprises the steps of weaving by taking rayon as a cloth base raw material; removing the fluff on the surface of the cloth substrate; stretching the cloth base, wherein the warp stretching rate is 6-12%, and the weft shrinkage rate is 8-20%; dipping the cloth base through a dipping tank containing sizing materials; drying the dipped cloth base at 70-160 ℃, and then shaping at high temperature of 160-190 ℃; and (3) blade-coating the cloth base, drying the cloth base at 70-160 ℃, calendaring and rolling. The invention adopts the rayon to weave and the double-strand filament, can effectively solve the problem of defect bulge caused by weaving, and provides guarantee for producing P600 and fine gauze; after singeing, stretching is adopted to reduce the elongation of the cloth base; drying firstly removes the low boiling point solvent, then high-temperature shaping makes the dipping sizing material solidify and shape, the obtained sizing material layer is compact and uniform, and the defect that the low boiling point solvent is rapidly gasified to form the sizing material layer by direct high-temperature drying is avoided.

Description

Processing method and system for high-strength soft cloth base of abrasive belt
Technical Field
The invention relates to the field of abrasive belt cloth bases and manufacturing methods thereof, in particular to a method and a system for processing a high-strength soft cloth base for an abrasive belt.
Background
The abrasive belt for transmission mainly comprises a base material, a binder and an abrasive, wherein the abrasive is in contact with a workpiece, the binder enables the abrasive to be fixed on the base material, the base material provides basic physical properties of the abrasive belt to adapt to different workpiece environments, such as abrasion resistance, heat resistance, extensibility, binding force with the binder and the like, and the common base material is a cloth base. In addition, the conventional soft cloth is mainly used for hand-tearing cloth, the softness and the strength of the cloth base cannot meet the requirements of abrasive belt application, and the problems of breakage, elongation and the like easily occur, so the cloth base needs to be treated.
The existing cloth base treatment method comprises the following steps: the cloth base treatment is finished by adopting common blended light cloth through surface finishing, sizing, dipping, pulp scraping and press polishing. The dipping formula and the cloth base design can not meet the application conditions of the abrasive belt with high strength and softness, so that the problems of insufficient softness and strength, breakage, elongation and the like can be caused, the service life of the formed abrasive belt is reduced, and the softness is not suitable for the workpiece environment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for processing a high-strength soft cloth base for an abrasive belt.
The technical scheme of the invention is summarized as follows:
the invention provides a processing method of a high-strength soft cloth base for an abrasive belt, which comprises the following steps:
1) adopting rayon as a cloth base raw material for weaving;
2) performing surface treatment, namely removing fluff on the surface of the cloth substrate;
3) stretching the fabric base, wherein the warp direction stretching rate is 6-12%, and the weft direction shrinkage rate is 8-20% so as to reduce the fabric base elongation rate;
4) dipping the cloth base through a dipping tank containing sizing materials; after dipping, drying the cloth base at 70-160 ℃, and then shaping at high temperature of 160-190 ℃;
5) coating the cloth base by a coating machine; after blade coating, drying the cloth base at 70-160 ℃;
6) and performing calendaring treatment and winding on the cloth base to obtain the treated cloth base.
Preferably, in the step 1), the cloth base uses rayon as a raw material, double-strand filaments are adopted in the warp and weft directions, the weaving structure is 2/1 satin, the weaving density is 90-100 x 40-60, and the count is 20-30/2 x 16-30.
Preferably, in the step 4), the sizing material comprises the following materials:
10-30 parts by weight of modified resin;
70-90 parts by weight of an emulsion;
0.1-1 part by weight of a penetrant;
the viscosity of the sizing material is 10 CPS-200 CPS, and the pH value is 7-8.
Preferably, in the step 5), the coating used for the coating of the cloth substrate by the coating machine comprises the following materials:
Figure BDA0002855770150000021
the viscosity of the coating is 1000 CPS-10000 CPS, and the pH value is more than 7 and less than 8.
Preferably, the modified resin is any one or a mixture of more than two of urea-formaldehyde resin, phenolic resin, melamine resin and acrylic resin.
Preferably, the emulsion is one or a mixture of more than two of butyronitrile, butylbenzene, white latex, acrylic acid, polyvinyl chloride and polyurethane.
Preferably, the filler is one or a mixture of more than two of calcium carbonate, wollastonite, talcum powder and calcium sulfate.
Preferably, the pigment is any one of metal oxide, sulfide, sulfate, inorganic salt, carbon black or phthalocyanine dye.
The invention also relates to a system for treating a high-strength soft cloth base for an abrasive belt, comprising: an unwinding device configured to unwind and convey a base fabric; the hair removing device is configured to receive the cloth base conveyed by the unwinding device and remove fluff on the surface of the cloth base; a stretching device configured to stretch the web to reduce web elongation; an impregnation tank configured to store a sizing material and to receive and impregnate the fabric base; a first drying device configured to receive the impregnated base fabric and dry the base fabric; a setting device configured to set the fabric base at a high temperature; a coater configured to draw down a coating onto a cloth substrate; a second drying device configured to receive the blade-coated fabric base and dry the fabric base; a calendaring device configured to perform calendaring on the fabric base; and the winding device is configured to wind the honed cloth base.
Preferably, the method further comprises the following steps: the weft straightener is arranged between the stretching device and the impregnation tank and is configured to be used for tidying the cloth base; and the thickness measuring device is arranged between the first drying device and the shaping device and is used for monitoring the thickness of the impregnated and dried cloth base.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for processing a high-strength soft cloth base for an abrasive belt, which comprises the following steps of (1) weaving rayon, adopting double-strand air spinning in the warp direction, and not carrying out a sizing procedure, thereby effectively solving the defects of base materials caused by sizing, the environmental protection problem of washing the cloth base, and the problem that a binder is not firmly bonded with the base materials due to incomplete desizing; (2) surface treatment, singeing, and stretching to reduce the elongation of the cloth base; (3) drying firstly removes the low boiling point solvent, then high-temperature shaping makes the dipping sizing material solidify and shape, the obtained sizing material layer is compact and uniform, and the defect that the low boiling point solvent is rapidly gasified to form the sizing material layer by direct high-temperature drying is avoided, so that the dipping sizing material layer is easy to fall off at the later stage.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic process flow diagram of the method of the present invention for treating a high strength soft cloth base for use in an abrasive belt;
figure 2 is a schematic view of a system for treating a high tensile soft cloth base for a sanding belt according to the present invention.
Description of reference numerals:
11-an unwinding device; 12-a first cloth storage box; 21-a hair removal device; 31-a stretching device; 32-weft straightener; 41-dipping tank; 42-a first drying device; 43-thickness measuring device; 44-a shaping device; 51-a coating machine; 52-a second drying device; 61-a calendering device; 62-a second cloth storage box; 63-a winding device.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The invention provides a processing method of a high-strength soft cloth base for an abrasive belt, which comprises the following steps:
1) adopting rayon as a cloth base raw material for weaving;
2) performing surface treatment, namely removing fluff on the surface of the cloth substrate;
3) stretching the fabric base, wherein the warp direction stretching rate is 6-12%, and the weft direction shrinkage rate is 8-20% so as to reduce the fabric base elongation rate;
4) dipping the cloth base through a dipping tank containing sizing materials; after dipping, drying the cloth base at 70-160 ℃, and then shaping at high temperature of 160-190 ℃;
5) coating the cloth base by a coating machine; after blade coating, drying the cloth base at 70-160 ℃;
6) and performing calendaring treatment and winding on the cloth base to obtain the treated cloth base.
Preferably, in the step 1), the cloth base is made of rayon as a raw material, double-strand filaments are adopted in the warp and weft directions, the weaving structure is 2/1 satin, and the weaving density is 90-100 x 40-60.
In the specific step 1), high wet modulus rayon (rayon) is adopted for weaving, and the high wet modulus rayon is characterized by high strength, low elongation, high wear resistance and soft texture; adopting double-strand filaments in the warp and weft directions, wherein the weaving weave is 2/1 satin, the fabric base density is 90-100 x 40-60, the yarn count is (16-40)/2 x 16-30, and the gram weight is less than 190G/CM2The thickness is more than 0.3MM, the warp strength is more than 1200N, the weft strength is more than 450N, and the warp airflow and weft airflow ring ingots are arranged.
The cloth base is characterized in that high wet modulus rayon (rayon) is woven, a double-strand air spinning process is adopted in the warp direction, a sizing process is not carried out, the defects of a base material caused by sizing, the environmental protection problem of washing the cloth base and the problem that the binding agent and the base material are not firmly bonded because of insufficient desizing can be effectively solved. The weft adopts a doubling concept of alternating thickness, so that the binding force of the grey cloth with a dipping glue stock, a sizing agent and a binding agent can be improved to a great extent; meanwhile, the high-wet-modulus rayon is soft in texture and can meet the requirements of finally formed high-strength super-soft gauze.
The process flow of the treatment of the cloth base is shown in figure 1 and comprises the following steps: surface treatment, singeing, stretching, dipping, drying, shaping, blade coating, drying, press polishing and rolling to obtain the treated cloth base, namely the special cloth base.
In the step 2), the cloth base passes through a singeing machine, and the singeing machine adjusts the surface treatment process through the distance between a fire hole and the cloth base and the flame intensity to achieve the purpose of removing surface fuzz.
In the step 3), the fabric base passes through a stretcher, the warp stretching rate is 6% -12%, and the weft shrinkage rate is 8% -20%, so that the purpose of reducing the elongation rate is achieved. The warp strength of the stretched cloth base is 1150-1250N/5 cm; the weft strength is 450-500N/5 cm, and the soft cloth abrasive belt is prevented from being broken during metal polishing and grinding.
Preferably, in the step 4), the sizing material comprises the following materials:
10-30 parts by weight of modified resin;
70-90 parts by weight of an emulsion;
0.1-1 part by weight of a penetrant;
the viscosity of the sizing material is 10 CPS-200 CPS, the pH value is 7-8, and the optimal pH value is more than 7 and less than 8.
In the steps, the low-boiling-point solvent is removed through drying, then the impregnated rubber material is solidified and formed through high-temperature shaping, the obtained rubber material layer is compact and uniform, and the defect that the low-boiling-point solvent is quickly gasified to form the rubber material layer through direct high-temperature drying is avoided, so that the rubber material layer is easy to fall off at the later stage. And at the drying temperature, the modified resin, the emulsion and the penetrating agent in the sizing material are combined with the rayon.
Preferably, in the step 5), the coating used for the coating of the cloth substrate by the coating machine comprises the following materials:
Figure BDA0002855770150000051
the viscosity of the coating is 1000 CPS-10000 CPS, and the pH value is more than 7 and less than 8.
The coating with the components is adopted to carry out size scraping on grey cloth, the gap between the cloth base and a scraper of a coating machine is adjusted to control the front-side blade coating amount to be 40g/cm2The coating amount of the back surface coating is 50g/cm2。
Preferably, the modified resin is any one or a mixture of more than two of urea-formaldehyde resin, phenolic resin, melamine resin and acrylic resin.
Preferably, the emulsion is one or a mixture of more than two of butyronitrile, butylbenzene, white latex, acrylic acid, polyvinyl chloride and polyurethane.
Preferably, the filler is one or a mixture of more than two of calcium carbonate, wollastonite, talcum powder and calcium sulfate.
Preferably, the pigment is any one of metal oxide, sulfide, sulfate, inorganic salt, carbon black or phthalocyanine dye.
Specifically, in the step 4), 10-30 parts by weight of modified resin, 70-90 parts by weight of emulsion and 0.1-1 part by weight of penetrant are taken according to the specific gravity, so that the sizing material fully enters the interior of the fiber, the viscosity is adjusted to be 10 CPS-200 CPS, the pH value is 6-8, the mixture is continuously and uniformly stirred and injected into an impregnation tank, the cloth base is bound by the impregnation tank under certain extrusion pressure to be 3BAR-5BAR, the mixture is fully impregnated, so that the sizing material fully enters the fiber, and then the mixture is dried for 3MIN at 70-160 ℃ through a rainbow bridge. Then the blank is put into a drying room for high-temperature setting for 3MIN at the temperature of 160 plus 190 ℃ and is rolled. Wherein the emulsion is pure acrylic emulsion, and the penetrating fluid is an anion penetrating agent.
Taking 10-30 parts by weight of modified resin, 70-90 parts by weight of emulsion, 10-50 parts by weight of filler, 0.1-1 part by weight of defoaming agent, 0.1-1 part by weight of wetting agent and 1-5 parts by weight of pigment according to the specific gravity in the step 5); adjusting the viscosity of the coating to 1000 CPS-10000 CPS, adjusting the pH value to be more than 7, continuously stirring uniformly, injecting the mixture into a coating machine, and scraping the cloth base to 40-100g/cm through a scraper in a certain gap2Drying by rainbow bridge at 70-160 deg.C for 3MIN, and rolling.
The defoaming agent is organic silicon, so that the adhesive force of the blade coating slurry is improved, and the wetting agent is an anionic wetting agent for improving the mixing effect of the glue and the filler.
The invention also relates to a system for treating a high-strength soft cloth base for an abrasive belt, comprising: an unwinding device 11 configured to unwind and convey a base fabric; a lint removing device 21 configured to receive the base fabric conveyed by the unwinding device and remove lint on the surface of the base fabric; a stretching device 31 configured to stretch the cloth base to reduce the cloth base elongation; an impregnation tank 41 configured to store a sizing material, and to receive and impregnate the cloth base; a first drying device 42 configured to receive the impregnated base fabric and dry the base fabric; a setting device 44 configured to set the fabric base at a high temperature; a coater 51 configured to blade coat paint onto a cloth substrate; a second drying device 52 configured to receive the blade-coated base fabric and dry the base fabric; a calendering device 61 configured to calender the fabric base; and a winding device 63 configured to wind the matte cloth substrate.
Preferably, the method further comprises the following steps: a weft straightener 32, arranged between the stretching device and the impregnation tank, configured for arranging the fabric base; and the thickness measuring device 43 is arranged between the first drying device 42 and the shaping device 44 and is used for monitoring the thickness of the cloth base after the cloth base is soaked and dried. And the second cloth storage box 62 is arranged between the calendaring device 61 and the winding device 63 and is used for storing cloth on the cloth base after calendaring treatment.
The invention provides a method and a system for processing a high-strength soft cloth base for an abrasive belt, which are used for (1) weaving rayon, adopting double-strand air spinning in the warp direction, not carrying out a sizing procedure, and effectively solving the problems of substrate defects caused by sizing, environmental protection problem of washing the cloth base and unstable bonding between a binder and the substrate caused by incomplete desizing; (2) surface treatment, singeing, and stretching to reduce the elongation of the cloth base; (3) drying firstly removes the low boiling point solvent, then high-temperature shaping makes the dipping sizing material solidify and shape, the obtained sizing material layer is compact and uniform, and the defect that the low boiling point solvent is rapidly gasified to form the sizing material layer by direct high-temperature drying is avoided, so that the dipping sizing material layer is easy to fall off at the later stage.
Example 1:
adopting rayon as a cloth base raw material for weaving; performing surface treatment to remove fluff on the surface of the cloth substrate; the fabric base passes through a stretcher, the warp direction stretching rate is 6%, the weft direction shrinkage rate is 8%, and the warp direction strength of the stretched fabric base is 1150N/5 cm; weft strength is 450N/5 cm; dipping the cloth base through a dipping tank containing sizing materials; after impregnation, drying the cloth base at 70 ℃, and then shaping at high temperature of 160 ℃; the sizing material comprises 10 parts by weight of modified resin; 70 parts of emulsion; 0.1 part by weight of penetrant; the viscosity of the sizing material is 10CPS, and the pH value is 6; coating the cloth base by a coating machine; after blade coating, the cloth base is dried at 70 ℃; the coating used for blade coating of the coating machine comprises 10 parts by weight of modified resin; 70 parts of emulsion; 10 parts of a filler; 0.1 part by weight of defoaming agent; 0.1 part by weight of wetting agent; 1 part by weight of pigment; the viscosity of the coating is 1000CPS, and the pH value is 8; and performing calendaring treatment and winding on the cloth base to obtain the treated cloth base.
Example 2:
adopting rayon as a cloth base raw material for weaving; performing surface treatment to remove fluff on the surface of the cloth substrate; the fabric base passes through a stretcher, the warp direction stretching rate is 8%, the weft direction shrinkage rate is 10%, and the warp direction strength of the stretched fabric base is 1200N/5 cm; the weft strength is 480N/5 cm; dipping the cloth base through a dipping tank containing sizing materials; after impregnation, the cloth base is dried at 90 ℃ and then shaped at a high temperature of 190 ℃; the sizing material comprises 10 parts by weight of modified resin; 70 parts of emulsion; 0.1 part by weight of penetrant; the viscosity of the sizing material is 10CPS, and the pH value is 6; coating the cloth base by a coating machine; after blade coating, the cloth base is dried at 70 ℃; the coating used for blade coating of the coating machine comprises 10 parts by weight of modified resin; 70 parts of emulsion; 10 parts of a filler; 0.1 part by weight of defoaming agent; 0.1 part by weight of wetting agent; 1 part by weight of pigment; the viscosity of the coating is 1000CPS, and the pH value is 8; and performing calendaring treatment and winding on the cloth base to obtain the treated cloth base.
Example 3:
the difference from example 2 was that the warp direction stretch was 12% and the weft direction shrinkage was 20%.
Example 4:
relative to the embodiment 1, the rubber compound component is changed into 15 parts by weight of modified resin; 80 parts of emulsion; 0.5 part by weight of penetrant.
Example 5:
relative to the embodiment 1, the rubber compound component is changed into 30 parts by weight of modified resin; 90 parts by weight of emulsion; and 1 part of penetrant.
Example 6:
the difference with respect to example 2 is that the coating material used for blade coating by the coating machine was changed to 30 parts by weight of modified resin, 90 parts by weight of emulsion, 50 parts by weight of filler, 1 part by weight of defoamer, 1 part by weight of wetting agent, and 5 parts by weight of pigment.
Comparative example 1:
the blended soft cloth purchased from the market was used as a raw cloth, and the manufacturing process of the rest of the cloth base was the same as that of example 1.
Comparative example 2:
the blended soft cloth purchased from the market is used as the raw cloth, and the manufacturing process of the rest of the cloth base is the same as that of the example 2.
The following table shows the experimental performance comparison of the above examples with the comparative examples.
Figure BDA0002855770150000081
The abrasive belt is obtained through multiple tests, the rayon is used as a cloth base raw material for weaving, different tensile strengths are obtained through setting the tensile rate, and the sizing material and the coating material are reasonably proportioned, so that the high-strength and super-soft cloth base can be obtained, and the high-strength and super-soft abrasive belt can be produced.
The treatment method for the high-strength soft cloth base for the abrasive belt adopts rayon for weaving, adopts double-strand air spinning in the warp direction, does not carry out a sizing procedure, and can effectively solve the defects of base materials caused by sizing, the environmental protection problem of washing of the cloth base and the problem of infirm bonding of a bonding agent and the base materials caused by incomplete desizing; through surface treatment, after singeing, stretching is adopted to reduce the elongation of the cloth base; the high-strength and super-soft cloth base can be obtained by reasonably proportioning the sizing material and the coating components so as to produce the high-strength and super-soft abrasive belt; the low-boiling-point solvent is firstly removed through drying, then the impregnated sizing material is solidified and formed through high-temperature shaping, the obtained sizing material layer is compact and uniform, and the defect that the low-boiling-point solvent is quickly gasified to form the sizing material layer through direct high-temperature drying is avoided, so that the sizing material layer is easy to fall off at the later stage.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. A processing method of a high-strength soft cloth base for an abrasive belt is characterized by comprising the following steps:
1) adopting rayon as a cloth base raw material for weaving;
2) performing surface treatment, namely removing fluff on the surface of the cloth substrate;
3) stretching the fabric base, wherein the warp direction stretching rate is 6-12%, and the weft direction shrinkage rate is 8-20% so as to reduce the fabric base elongation rate;
4) dipping the cloth base through a dipping tank containing sizing materials; after dipping, drying the cloth base at 70-160 ℃, and then shaping at high temperature of 160-190 ℃;
5) coating the cloth base by a coating machine; after blade coating, drying the cloth base at 70-160 ℃;
6) and performing calendaring treatment and winding on the cloth base to obtain the treated cloth base.
2. A method for processing a high-strength soft cloth base for an abrasive belt according to claim 1, wherein in the step 1), the cloth base is made of rayon, double-strand filaments are adopted in the warp and weft directions, the weaving structure is 2/1 satin, the weaving density is 90-100 x 40-60, and the count is 20-30/2 x 16-30.
3. A method of treating a high tenacity soft cloth base for a sanding belt according to claim 1, wherein in step 4), the sizing comprises the following materials:
10-30 parts by weight of modified resin;
70-90 parts by weight of an emulsion;
0.1-1 part by weight of a penetrant;
the viscosity of the sizing material is 10 CPS-200 CPS, and the pH value is 7-8.
4. A method of treating a high tenacity and soft fabric base for a sanding belt according to claim 1, wherein in step 5), the coating material applied by the coater for drawing comprises the following materials:
Figure FDA0002855770140000011
the viscosity of the coating is 1000 CPS-10000 CPS, and the pH value is more than 7 and less than 8.
5. A method for treating a high-strength soft fabric base for an abrasive belt according to claim 3 or 4, wherein said modified resin is any one or a mixture of two or more of urea-formaldehyde resin, phenol-formaldehyde resin, melamine resin and acrylic resin.
6. A method as claimed in claim 3 or 4, wherein said emulsion is one or more of butyronitrile, butylbenzene, white latex, acrylic acid, polyvinyl chloride, and polyurethane.
7. A method for treating a high-strength soft cloth base for use in an abrasive belt according to claim 4, wherein said filler is one or a mixture of two or more of calcium carbonate, wollastonite, talc and calcium sulfate.
8. A method of treating a high tenacity soft fabric substrate for a sanding belt according to claim 4, wherein said pigment is any one of metal oxide, sulfide, sulfate, inorganic salt, carbon black or phthalocyanine dye.
9. A system for treating a high tensile flexible fabric base for a sanding belt, comprising: an unwinding device configured to unwind and convey a base fabric; the hair removing device is configured to receive the cloth base conveyed by the unwinding device and remove fluff on the surface of the cloth base; a stretching device configured to stretch the web to reduce web elongation; an impregnation tank configured to store a sizing material and to receive and impregnate the fabric base; a first drying device configured to receive the impregnated base fabric and dry the base fabric; a setting device configured to set the fabric base at a high temperature; a coater configured to draw down a coating onto a cloth substrate; a second drying device configured to receive the blade-coated fabric base and dry the fabric base; a calendaring device configured to perform calendaring on the fabric base; and the winding device is configured to wind the honed cloth base.
10. A system for treating a high tensile flexible fabric substrate for a sanding belt according to claim 9, further comprising: the weft straightener is arranged between the stretching device and the impregnation tank and is configured to be used for tidying the cloth base; and the thickness measuring device is arranged between the first drying device and the shaping device and is used for monitoring the thickness of the impregnated and dried cloth base.
CN202011546316.2A 2020-12-23 2020-12-23 Processing method and system for high-strength soft cloth base of abrasive belt Pending CN112709076A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357292A (en) * 1971-06-07 1974-06-19 Norton Co Low stretch sectional abrasive belts and their method of manu facture
US4035961A (en) * 1974-07-24 1977-07-19 Norton Company Coated abrasive backing of dimensionally stabilized heat stretched fabric
US4140829A (en) * 1975-06-27 1979-02-20 Norton Company Woven heat-stretched backing members of improved dimensional stability
US20030073361A1 (en) * 2001-10-12 2003-04-17 Stansell Steven A. Process to manufacture novel abrasive belt substrate
CN2688446Y (en) * 2003-11-13 2005-03-30 刘晓荣 Resin fabrics for high-performance grinding abrasive band
CN104416480A (en) * 2013-08-23 2015-03-18 新沂市张氏磨具发展有限公司 Preparation method of multi-directional super-strength polyester abrasive cloth

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357292A (en) * 1971-06-07 1974-06-19 Norton Co Low stretch sectional abrasive belts and their method of manu facture
US4035961A (en) * 1974-07-24 1977-07-19 Norton Company Coated abrasive backing of dimensionally stabilized heat stretched fabric
US4140829A (en) * 1975-06-27 1979-02-20 Norton Company Woven heat-stretched backing members of improved dimensional stability
US20030073361A1 (en) * 2001-10-12 2003-04-17 Stansell Steven A. Process to manufacture novel abrasive belt substrate
CN2688446Y (en) * 2003-11-13 2005-03-30 刘晓荣 Resin fabrics for high-performance grinding abrasive band
CN104416480A (en) * 2013-08-23 2015-03-18 新沂市张氏磨具发展有限公司 Preparation method of multi-directional super-strength polyester abrasive cloth

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Title
顾钰良等: "砂带基布的生产和处理加工技术", 《产业用纺织品》, vol. 17, no. 105, 15 June 1999 (1999-06-15), pages 12 - 14 *

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Application publication date: 20210427