CN111519448A - Coating method of environment-friendly flame-retardant light-transmitting curtain - Google Patents
Coating method of environment-friendly flame-retardant light-transmitting curtain Download PDFInfo
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- CN111519448A CN111519448A CN202010401155.1A CN202010401155A CN111519448A CN 111519448 A CN111519448 A CN 111519448A CN 202010401155 A CN202010401155 A CN 202010401155A CN 111519448 A CN111519448 A CN 111519448A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 102
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 65
- 239000004744 fabric Substances 0.000 claims abstract description 61
- 238000004513 sizing Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000003292 glue Substances 0.000 claims abstract description 36
- 238000007598 dipping method Methods 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000004090 dissolution Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 18
- 239000000839 emulsion Substances 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 239000002562 thickening agent Substances 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 125000005442 diisocyanate group Chemical group 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 11
- 239000011574 phosphorus Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005406 washing Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- -1 cyclic phosphate ester Chemical class 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H23/00—Curtains; Draperies
- A47H23/02—Shapes of curtains; Selection of particular materials for curtains
- A47H23/08—Selection of particular materials
-
- 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
-
- 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
- D06N3/0015—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 fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
-
- 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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/06—Properties of the materials having thermal properties
- D06N2209/067—Flame resistant, fire resistant
-
- 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/122—Curtains
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a coating method of an environment-friendly flame-retardant light-transmitting curtain, which comprises the steps of carrying out slurry dipping treatment on a curtain fabric by adopting a dissolution type flame retardant, and drying to form a flame-retardant film which is easily soluble in water on the surface of the curtain fabric, wherein the flame-retardant film is not washable; then, a sizing mode is adopted, and a layer of sizing glue capable of sealing the flame retardant is coated on the surface of the fabric, so that the flame retardant effect is ensured, and the fabric is more resistant to washing; no phosphorus-containing substance volatilizes in the whole treatment process of this scheme, and is more environmental protection to the environment.
Description
Technical Field
The invention relates to the technical field of curtain fabrics, in particular to a coating method of an environment-friendly flame-retardant light-transmitting curtain.
Background
Currently, the commonly used flame retardants are generally classified into: bromine-based, antimony-based, nitrogen-based, phosphorus-based, inorganic (hydroxides, oxides, etc.); wherein, the transparent liquid is mainly only a phosphorus flame retardant, and the rest is almost powder.
The existing light-transmitting flame-retardant curtain mostly adopts a flame retardant padding or sizing coating mode, and because the curtain needs to keep light transmittance, the used flame retardant needs to have transparency, so that phosphorus is mainly used, and a lot of cyclic phosphate flame retardants are usually used. The flame retardant has good compatibility with aqueous resin emulsion, however, cyclic phosphate ester has large volatility and poor thermal stability and hydrolytic stability, and phosphorus element volatilizes along with water in the drying process, so that water pollution with excessive phosphorus is caused in the process of collecting water vapor by enterprises.
The fabric flame retardant is divided into two main categories of dissolubility and non-dissolubility. The dissolution type is a non-washable flame retardant, but the flame retardant is environment-friendly, non-toxic and non-corrosive, and except for water in the baking process, no phosphorus-containing substance volatilizes, but in the actual production process, the flame retardant and the aqueous resin emulsion are compounded, so that an emulsifier in the emulsion is invalid, and further the emulsion breaking phenomenon is caused, a continuous flame-retardant film cannot be formed on the surface of the fabric, the flame retardant cannot be sealed by the resin, and the flame-retardant effect of the fabric is obviously reduced after the fabric is washed by water.
In conclusion, the existing phosphorus flame retardant is not environment-friendly, although the phosphorus flame retardant has good compatibility with aqueous resin emulsion and can resist washing. The existing dissolution type flame retardant does not contain phosphorus and is more environment-friendly, but has poor compatibility with aqueous resin emulsion and is not resistant to washing.
Disclosure of Invention
In view of the problems in the prior art, the present invention aims to: the method for coating the environment-friendly flame-retardant light-transmitting curtain is characterized in that the fabric is subjected to padding and baking, so that the fabric is environment-friendly, is more resistant to washing and ensures the flame-retardant effect.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a coating method of an environment-friendly flame-retardant light-transmitting curtain comprises the following processing steps:
s1, preparing flame-retardant slurry, wherein the preparation steps are as follows:
selecting an aqueous dissolution type flame retardant, and blending the selected flame retardant and water according to a weight ratio to obtain a semi-finished flame retardant slurry; wherein the weight percentage of the flame retardant is 40-60%;
putting the semi-finished flame-retardant slurry into a stirrer for stirring, and gradually adding diisocyanate in a weight ratio of 1.5-2% in the stirring process to obtain flame-retardant slurry;
s2, placing the curtain fabric into the flame-retardant slurry for slurry dipping treatment, wherein the treatment steps are as follows:
putting the curtain fabric into the flame-retardant slurry by using a slurry dipping machine for slurry dipping;
carrying out water squeezing treatment on the soaked curtain fabric;
carrying out gradient drying treatment on the curtain fabric subjected to the water squeezing treatment;
s3, preparing sizing glue, wherein the preparation steps are as follows:
firstly, blending acrylic emulsion and water according to a weight ratio to obtain semi-finished sizing glue; wherein the weight ratio of the acrylic emulsion is 20-25%;
putting the prepared semi-finished product sizing glue into a stirrer for stirring, and gradually adding a thickening agent in the stirring process to obtain sizing glue;
s4, coating sizing glue by blade, and the processing steps are as follows:
after the slurry dipping treatment, a layer of prepared sizing glue is blade-coated on the front surface and the back surface of the curtain fabric, and the curtain fabric is dried to obtain the environment-friendly flame-retardant light-transmitting curtain fabric.
According to a further preferable technical scheme, the curtain fabric is made of 21S-21S polyester gauze with good light transmittance.
According to a further preferable technical scheme, the stirrer adopts a vertical stirrer, and the rotating speed of the vertical stirrer is set to be 600-800 r/min.
Further preferred is a solution wherein the diisocyanate is added at a rate of 0.5 ± 0.1% wt.%/min.
According to a further preferable technical scheme, in the slurry dipping treatment process, the continuous contact time of the curtain fabric and the flame-retardant slurry is 4-6 seconds.
Further preferably, in the water squeezing treatment process, the pressure of the compression roller is controlled between 0.4 and 0.6 MPa.
Further preferably, the gradient drying treatment means that the drying temperature is gradually increased from 80 ℃ to 160 ℃ so as to obtain a better crosslinking effect.
According to a further preferable technical scheme, the addition amount of the thickening agent is determined according to the viscosity of the slurry, and the viscosity of the slurry is ensured to be controlled to be 3 × 104-4.2×104mPas is between.
Further preferably, in the step of treating the coating sizing glue, the process is controlled so that the slurry consumption of the process is 12-18 g/m2。
Further preferably, in the step of coating sizing glue, the drying temperature is set to 170 ℃ and the drying time is set to 60 seconds.
The invention has the beneficial effects that:
the curtain fabric is padded and dried by adopting the pure dissolution type flame retardant, so that a layer of flame retardant film which is easy to dissolve in water is formed on the surface of the curtain fabric, and the layer of flame retardant film is not washable; and then, a sizing mode is adopted, and a layer of sizing glue capable of sealing the flame retardant is coated on the surface of the fabric, so that the flame retardant effect is ensured, and the fabric is more resistant to washing. In addition, no phosphorus-containing substance volatilizes in the whole production process, so that the environment is more environment-friendly.
Drawings
FIG. 1 is a schematic view of the coating process steps of the present invention.
1-curtain fabric, 2-curtain fabric with a flame-retardant film and 3-sizing layer.
Detailed Description
The following is combined with the attached drawings. The present invention is further explained.
As shown in fig. 1, the coating method of the present invention mainly comprises two major processing steps: carrying out pulp soaking treatment and sizing treatment; the curtain fabric is soaked in the flame-retardant slurry, a flame-retardant film which is easy to dissolve in water is formed on the surface of the curtain fabric after the curtain fabric is dried, the flame-retardant film is not resistant to water washing, and then a resin coating which can seal a flame retardant is coated on the surface of the curtain fabric in a blade coating mode by adopting a sizing mode, so that the flame-retardant effect is ensured and the curtain fabric is resistant to water washing.
The following is a specific embodiment of the scheme:
example 1:
s1, preparing flame-retardant slurry, wherein the preparation steps are as follows:
selecting an aqueous dissolution type flame retardant, specifically selecting Addiflam PP50 series flame retardants of CTF2000 company; mixing and blending the selected flame retardant and water according to a weight ratio to obtain a semi-finished flame-retardant slurry; wherein, the weight proportion of the flame retardant is 40 percent, and the weight proportion of the water is 60 percent;
putting the semi-finished flame-retardant slurry into a vertical stirrer for stirring, wherein the rotating speed of the vertical stirrer is 600 r/min;
gradually adding diisocyanate in the stirring process, wherein the adding weight ratio of the diisocyanate is 1.5%, and the adding speed is 0.4% wt.%/min, so as to obtain flame-retardant slurry;
s2, placing the curtain fabric into the flame-retardant slurry for slurry dipping treatment, wherein the treatment steps are as follows:
selecting 21S-21S polyester gauze with good light transmittance as the base fabric of the curtain fabric; (but not limited thereto)
Placing the polyester gauze into the flame-retardant slurry for slurry dipping by using a slurry dipping machine, wherein the continuous contact time of the polyester gauze and the flame-retardant immersion liquid is 4-6 seconds;
carrying out water squeezing treatment on the soaked curtain fabric, wherein the pressure of a compression roller is controlled to be 0.4-0.6 Mpa; both press rolls for the water squeezing treatment are nylon rolls and are performed at normal temperature. The water squeezing treatment is mainly to squeeze out the water in the fabric.
Carrying out gradient drying treatment on the curtain fabric subjected to the water squeezing treatment; wherein, gradient stoving treatment means that the stoving temperature is gradually excessive to 160 ℃ from 80 ℃ to obtain better crosslinking effect, and during specific operation, every 20 ℃ that improves can be set as a ladder, for example: 80 deg.C, 100 deg.C, 120 deg.C, 140 deg.C, 160 deg.C.
S3, preparing sizing glue, wherein the preparation steps are as follows:
firstly, blending acrylic emulsion and water according to a weight ratio to obtain semi-finished sizing glue; wherein, the weight ratio of the acrylic emulsion is 20 percent, and the weight ratio of the water is 80 percent;
adding the prepared semi-finished sizing glue into a stirrer for stirring, and gradually adding a thickening agent in the stirring process to obtain the sizing glue, wherein the addition amount of the thickening agent can be determined according to the viscosity of the prepared slurry, and the thickening agent is gradually added during stirring to ensure that the viscosity of the slurry is controlled to be 3 × 104-4.2×104mPa is between s;
s4, coating sizing glue by blade, and the processing steps are as follows:
after the dipping treatment, coating a layer of prepared sizing glue on the front and back surfaces of the polyester gauze, and controlling the process to ensure that the pulp consumption of the process is 12-18 g/m in the sizing process2And then drying at 170 ℃ for 60 seconds to finally obtain the required environment-friendly flame-retardant light-transmitting curtain fabric.
Example 2:
s1, preparing flame-retardant slurry, wherein the preparation steps are as follows:
selecting an aqueous dissolution type flame retardant, specifically selecting Addiflam PP50 series flame retardants of CTF2000 company; mixing and blending the selected flame retardant and water according to a weight ratio to obtain a semi-finished flame-retardant slurry; wherein, the weight proportion of the flame retardant is 50 percent, and the weight proportion of the water is 50 percent;
putting the semi-finished flame-retardant slurry into a vertical stirrer for stirring, wherein the rotating speed of the vertical stirrer is 700 r/min;
gradually adding diisocyanate in the stirring process, wherein the adding weight ratio of the diisocyanate is 1.8%, and the adding speed is 0.5% by weight/min, so as to obtain flame-retardant slurry;
s2, placing the curtain fabric into the flame-retardant slurry for slurry dipping treatment, wherein the treatment steps are as follows:
selecting 21S-21S polyester gauze with good light transmittance as the base fabric of the curtain fabric; (but not limited thereto)
Placing the polyester gauze into the flame-retardant slurry for slurry dipping by using a slurry dipping machine, wherein the continuous contact time of the polyester gauze and the flame-retardant immersion liquid is 4-6 seconds;
carrying out water squeezing treatment on the soaked curtain fabric, wherein the pressure of a compression roller is controlled to be 0.4-0.6 Mpa; both press rolls for the water squeezing treatment are nylon rolls and are performed at normal temperature. The water squeezing treatment is mainly to squeeze out the water in the fabric.
Carrying out gradient drying treatment on the curtain fabric subjected to the water squeezing treatment; wherein, gradient stoving treatment means that the stoving temperature is gradually excessive to 160 ℃ from 80 ℃ to obtain better crosslinking effect, and during specific operation, every 20 ℃ that improves can be set as a ladder, for example: 80 deg.C, 100 deg.C, 120 deg.C, 140 deg.C, 160 deg.C.
S3, preparing sizing glue, wherein the preparation steps are as follows:
firstly, blending acrylic emulsion and water according to a weight ratio to obtain semi-finished sizing glue; wherein, the weight ratio of the acrylic emulsion is 23 percent, and the weight ratio of the water is 77 percent;
adding the prepared semi-finished sizing glue into a stirrer for stirring, and gradually adding a thickening agent in the stirring process to obtain the sizing glue, wherein the addition amount of the thickening agent can be determined according to the viscosity of the prepared slurry, and the thickening agent is gradually added during stirring to ensure that the viscosity of the slurry is controlled to be 3 × 104-4.2×104mPa.s;
s4, coating sizing glue by blade, and the processing steps are as follows:
after the dipping treatment, coating a layer of prepared sizing glue on the front and back surfaces of the polyester gauze, and controlling the process to ensure that the pulp consumption of the process is 12-18 g/m in the sizing process2And then drying at 170 ℃ for 60 seconds to finally obtain the required environment-friendly flame-retardant light-transmitting curtain fabric.
Example 3:
s1, preparing flame-retardant slurry, wherein the preparation steps are as follows:
selecting an aqueous dissolution type flame retardant, specifically selecting Addiflam PP50 series flame retardants of CTF2000 company; mixing and blending the selected flame retardant and water according to a weight ratio to obtain a semi-finished flame-retardant slurry; wherein, the weight proportion of the flame retardant is 60 percent, and the weight proportion of the water is 40 percent;
putting the semi-finished flame-retardant slurry into a vertical stirrer for stirring, wherein the rotating speed of the vertical stirrer is 800 r/min;
gradually adding diisocyanate in the stirring process, wherein the adding weight ratio is 2%, and the adding speed is 0.6% wt.%/min, so as to obtain flame-retardant slurry;
s2, placing the curtain fabric into the flame-retardant slurry for slurry dipping treatment, wherein the treatment steps are as follows:
selecting 21S-21S polyester gauze with good light transmittance as the base fabric of the curtain fabric; (but not limited thereto)
Placing the polyester gauze into the flame-retardant slurry for slurry dipping by using a slurry dipping machine, wherein the continuous contact time of the polyester gauze and the flame-retardant immersion liquid is 4-6 seconds;
carrying out water squeezing treatment on the soaked curtain fabric, wherein the pressure of a compression roller is controlled to be 0.4-0.6 Mpa; both press rolls for the water squeezing treatment are nylon rolls and are performed at normal temperature. The water squeezing treatment is mainly to squeeze out the water in the fabric.
Carrying out gradient drying treatment on the curtain fabric subjected to the water squeezing treatment; wherein, gradient stoving treatment means that the stoving temperature is gradually excessive to 160 ℃ from 80 ℃ to obtain better crosslinking effect, and during specific operation, every 20 ℃ that improves can be set as a ladder, for example: 80 deg.C, 100 deg.C, 120 deg.C, 140 deg.C, 160 deg.C.
S3, preparing sizing glue, wherein the preparation steps are as follows:
firstly, blending acrylic emulsion and water according to a weight ratio to obtain semi-finished sizing glue; wherein, the weight ratio of the acrylic emulsion is 25 percent, and the weight ratio of the water is 75 percent;
adding the prepared semi-finished sizing glue into a stirrer for stirring, and gradually adding a thickening agent in the stirring process to obtain the sizing glue, wherein the addition amount of the thickening agent can be determined according to the viscosity of the prepared slurry, and the thickening agent is gradually added during stirring to ensure that the viscosity of the slurry is controlled to be 3 × 104-4.2×104mPa.s;
s4, coating sizing glue by blade, and the processing steps are as follows:
after the dipping treatment, coating a layer of prepared sizing glue on the front and back surfaces of the polyester gauze, and controlling the process to ensure that the pulp consumption of the process is 12-18 g/m in the sizing process2And then drying at 170 ℃ for 60 seconds to finally obtain the required environment-friendly flame-retardant light-transmitting curtain fabric.
The basic principles and the main features of the solution and the advantages of the solution have been shown and described above. It will be understood by those skilled in the art that the present solution is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principles of the solution, but that various changes and modifications may be made to the solution without departing from the spirit and scope of the solution, and these changes and modifications are intended to be within the scope of the claimed solution. The scope of the present solution is defined by the appended claims and equivalents thereof.
Claims (10)
1. The coating method of the environment-friendly flame-retardant light-transmitting curtain is characterized by comprising the following processing steps of:
s1, preparing flame-retardant slurry, wherein the preparation steps are as follows:
selecting an aqueous dissolution type flame retardant, and blending the selected flame retardant and water according to a weight ratio to obtain a semi-finished flame retardant slurry; wherein the weight percentage of the flame retardant is 40-60%;
putting the semi-finished flame-retardant slurry into a stirrer for stirring, and gradually adding diisocyanate in a weight ratio of 1.5-2% in the stirring process to obtain flame-retardant slurry;
s2, placing the curtain fabric into the flame-retardant slurry for slurry dipping treatment, wherein the treatment steps are as follows:
putting the curtain fabric into the flame-retardant slurry by using a slurry dipping machine for slurry dipping;
carrying out water squeezing treatment on the soaked curtain fabric;
carrying out gradient drying treatment on the curtain fabric subjected to the water squeezing treatment;
s3, preparing sizing glue, wherein the preparation steps are as follows:
firstly, blending acrylic emulsion and water according to a weight ratio to obtain semi-finished sizing glue; wherein the weight ratio of the acrylic emulsion is 20-25%;
putting the prepared semi-finished product sizing glue into a stirrer for stirring, and gradually adding a thickening agent in the stirring process to obtain sizing glue;
s4, coating sizing glue by blade, and the processing steps are as follows:
after the slurry dipping treatment, a layer of prepared sizing glue is blade-coated on the front surface and the back surface of the curtain fabric, and the curtain fabric is dried to obtain the environment-friendly flame-retardant light-transmitting curtain fabric.
2. The method for coating an environment-friendly flame-retardant light-transmitting curtain as claimed in claim 1, wherein the curtain fabric is 21S by 21S polyester gauze with good light transmission.
3. The method as claimed in claim 1, wherein the stirrer is a vertical stirrer, and the rotation speed is set to 600-800 r/min.
4. The method of claim 1, wherein the diisocyanate is added at a rate of 0.5 ± 0.1% wt./min.
5. The method for coating an environment-friendly flame-retardant light-transmitting curtain as claimed in claim 1, wherein the continuous contact time of the curtain fabric and the flame-retardant slurry is 4-6 seconds in the slurry dipping treatment process.
6. The method of claim 1, wherein the pressure of the pressing roller is controlled to be 0.4 to 0.6Mpa during the rolling process.
7. The method as claimed in claim 1, wherein the gradient drying process is a gradual transition from 80 ℃ to 160 ℃.
8. The method as claimed in claim 1, wherein the thickener is added in an amount determined according to the viscosity of the slurry, and the viscosity of the slurry is controlled to 3 × 104-4.2×104mPas is between.
9. As claimed in claim1, the coating method of the environment-friendly flame-retardant light-transmitting curtain is characterized in that in the treatment step of blade coating sizing glue, the process is controlled so that the slurry consumption of the process is 12-18 g/m2。
10. The method as claimed in claim 1, wherein the drying temperature is set to 170 ℃ and the drying time is set to 60 seconds in the step of coating the sizing glue.
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Cited By (2)
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| CN113249849A (en) * | 2021-06-07 | 2021-08-13 | 常州雅美特窗饰股份有限公司 | Production method of high-flatness light-transmitting curtain fabric |
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Application publication date: 20200811 |