CN110804887A - Thermal transfer printing method of waterproof moisture-permeable nanofiber membrane - Google Patents
Thermal transfer printing method of waterproof moisture-permeable nanofiber membrane Download PDFInfo
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- CN110804887A CN110804887A CN201911173008.7A CN201911173008A CN110804887A CN 110804887 A CN110804887 A CN 110804887A CN 201911173008 A CN201911173008 A CN 201911173008A CN 110804887 A CN110804887 A CN 110804887A
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- nanofiber membrane
- permeable
- waterproof moisture
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/003—Transfer printing
- D06P5/004—Transfer printing using subliming dyes
- D06P5/006—Transfer printing using subliming dyes using specified dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
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- Ink Jet (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a thermal transfer printing method of a waterproof moisture permeable nanofiber membrane, which comprises the following steps: printing a pattern on a transfer printing medium; transferring the pattern from the transfer medium to a waterproof moisture-permeable nanofiber membrane; and separating the transfer printing medium from the waterproof moisture-permeable nanofiber membrane printed with the pattern. The nanofiber membrane after transfer printing has good light fastness, water fastness and dry-wet rubbing fastness; good mechanical property, air permeability, moisture permeability, waterproof property and the like. The invention realizes that the dry rubbing fastness of the printed product of the waterproof moisture-permeable nanofiber membrane is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade and the light fastness is 4-5 grade after transfer printing on the premise of keeping the waterproof moisture-permeable performance of the waterproof moisture-permeable nanofiber membrane unchanged. The tensile strength is averagely improved by 56.6 percent; the hydrostatic pressure resistance is improved by 32 percent on average, and the moisture permeability is improved by 167.4 percent on average.
Description
Technical Field
The invention belongs to the field of green textile printing and dyeing, can solve the problem that the existing waterproof moisture-permeable nanofiber membrane is difficult to color, is pollution-free, and meets the requirement of environmental protection. In particular to a novel product with certain patterns and patterns, which is obtained by printing a waterproof moisture-permeable nanofiber membrane by using a thermal transfer printing technology.
Background
The waterproof moisture permeable nanofiber membrane mainly comprises PVDF and PU. Obtained by electrostatic spinning. The nanofiber membrane fabric prepared by electrostatic spinning has good waterproof performance, good moisture permeability and certain strength, and has good application prospects in aspects of sun-proof clothes, sun-proof T-shirts and the like. However, since the waterproof moisture-permeable nanofiber film has good waterproof properties, it is difficult to color, and it is necessary to solve the problem of difficulty in coloring.
The heat transfer printing principle is that firstly the printed pattern after pretreatment is printed on specific transfer paper by heat transfer printing ink, and then the pattern is transferred from the transfer paper to the fabric or the plus material by high temperature and high pressure. The thermal transfer printing does not need complicated procedures such as washing, color fixing, steaming and the like, and also does not need shaping after printing, thereby saving the mass production time and shortening the delivery period. The printing technology integrates the advantages of green, environmental protection, low carbon, energy conservation, emission reduction, ecology and the like, and is a major breakthrough of the textile printing technology. The printed fabric has soft hand feeling, bright color, rich layers and good air permeability.
The waterproof moisture permeable nanofiber membrane is difficult to uniformly color due to hydrophobic surface, thin thickness and thin fibers; the traditional dyeing method takes water as a medium, and cannot bring dye into the fiber, so the fiber cannot be colored, but the heat transfer printing is to sublimate dye molecules into an amorphous area of the fiber, so the fiber can be colored, and the dyeing fastness is good. Therefore, the waterproof moisture-permeable nanofiber membrane fabric can be printed by a thermal transfer printing method. The printed waterproof moisture-permeable nanofiber membrane can be used for making waterproof moisture-permeable sun-proof clothes, waterproof moisture-permeable sun-proof T-shirts, waterproof clothes worn inside actors and other products, and has wide market prospect and immeasurable potential economic benefit.
Disclosure of Invention
The invention provides a heat transfer printing method of a waterproof moisture-permeable nanofiber membrane, aiming at the problems in the prior art, the waterproof moisture-permeable nanofiber membrane is colored through heat transfer printing, disperse dyes are printed on a transfer printing medium, the heat transfer printing is carried out by using a heat transfer technology at a certain temperature and time, the interior of hydrophobic fibers instantly generates free volume after a certain time at a certain temperature and pressure, the dyes are gasified and sublimated, and are transferred from transfer printing paper to the interior of nanofibers, so that the waterproof moisture-permeable nanofiber membrane has a certain pattern. The nanofiber membrane after transfer printing has good water repellency and certain air permeability; good color fastness to sunlight, water and dry and wet rubbing; good mechanical property, air permeability, moisture permeability, waterproof property and other wearability. The printed waterproof moisture-permeable nanofiber membrane can be used for making waterproof moisture-permeable sun-proof clothes, waterproof moisture-permeable sun-proof T-shirts, waterproof clothes worn inside actors and other products, and has wide market prospect and immeasurable potential economic benefit.
In order to solve the technical problems, the invention adopts the following technical scheme:
a thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing patterns on a printing medium: printing a pattern on a transfer medium with an ink jet printer for thermal transfer printing;
(2) transferring the pattern from the print medium onto a waterproof moisture-permeable nanomembrane: transferring the pattern from the printing medium to the waterproof moisture-permeable nanofiber membrane at a certain temperature, a certain time and a certain pressure, and controlling the proper temperature, time and pressure;
(3) separating the printing medium from the printed waterproof moisture-permeable nano-film: the printing medium is separated from the printed waterproof moisture-permeable nanofiber membrane by adopting a mechanical separation method, and the separation tension, speed and direction are controlled.
Further, the transfer medium in the step (1) is transfer printing paper, a transfer printing film or a transfer printing metal film. The transfer printing film is a high polymer film such as polyester, and the transfer printing metal film can be a film such as aluminum alloy.
Further, in the step (2), the temperature is controlled to be 90-200 ℃, preferably 100-140 ℃; the time is 5s-2min, preferably 20-70 s; the pressure is 0.3 to 5 MPa, preferably 1.5 to 2.1 MPa.
Further, in the step (3), the separation method is mechanical separation, manual and mechanical equipment is adopted, and the separation tension is 0.5-5N, preferably 1.5-4N; the speed is 0.1-100cm/s, preferably 10-35 cm/s; in the direction of 2-180 deg., preferably 70-120 deg..
The invention has the beneficial effects that: (1) the waterproof moisture-permeable nanofiber membrane is printed by using a thermal transfer printing technology, so that the waterproof moisture-permeable nanofiber membrane which is difficult to color is rich in color, bright in color, colorful and attractive in appearance.
(2) The waterproof moisture-permeable nanofiber membrane after thermal transfer printing has good water repellency and certain air permeability; good color fastness to sunlight, water and dry and wet rubbing; good mechanical property, air permeability, moisture permeability, waterproof property and other wearability.
(3) The thermal transfer printing does not need complicated procedures such as washing, color fixing, steaming and the like, and also does not need shaping after printing, thereby saving mass production time and shortening delivery period. The printing technology integrates the functions of green, environmental protection, low carbon, energy conservation, emission reduction, ecology and the like, has mature process and can be directly industrialized.
The waterproof moisture permeable nanofiber membrane thermal transfer printing has good practicability. The printed waterproof moisture-permeable nanofiber membrane has the following characteristics:
(1) has beautiful appearance. After printing, various patterns can be obtained.
(2) Has better fastness. The dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness grade is 4-5 grade (corresponding to L7 grade).
(3) Has good mechanical property, air permeability, moisture permeability, waterproof property and other wearability. After printing, the mechanical breaking stress of the nanofiber membrane is increased, the elongation is reduced, and the rigidity is enhanced; the printed nanofiber membrane still has air permeability and moisture permeability, and the moisture permeability of the nanofiber membrane fabric is slightly improved after printing; because the dye blocks part of pores, the hydrostatic pressure resistance is improved; the printed nanofiber membrane has certain stain resistance.
Drawings
FIG. 1 shows the tensile mechanical property change of the waterproof moisture permeable nanofiber membrane before and after printing;
FIG. 2 shows the moisture permeability change of the waterproof moisture permeable nanofiber membrane before and after printing;
fig. 3 shows the water resistance change of the water-proof moisture-permeable nanofiber membrane before and after printing.
Detailed Description
The present invention will be further described with reference to the following examples. It is to be understood that the following examples are illustrative only and are not intended to limit the scope of the invention, which is to be given numerous insubstantial modifications and adaptations by those skilled in the art based on the teachings set forth above.
The invention relates to a thermal transfer printing method of a waterproof moisture permeable nanofiber membrane, which comprises the following steps:
(1) printing patterns on a printing medium: the pattern is printed on the transfer medium with an ink-jet printer for thermal transfer printing. The transfer medium may be transfer printing paper, may be a high polymer film, and may be a metal film.
(2) Transferring the pattern from the print medium onto a waterproof moisture-permeable nanomembrane: transferring the pattern from the printing medium to the waterproof moisture-permeable nanofiber membrane at a certain temperature, a certain time and a certain pressure, and controlling the proper temperature, time and pressure.
(3) Separating the printing medium from the printed waterproof moisture-permeable nano-film: the printing medium is separated from the printed waterproof moisture-permeable nanofiber membrane by adopting a mechanical separation method, and the separation tension, speed and direction are controlled.
In the step (1), the ink of the ink-jet printer is made of disperse dye; the transfer printing paper is commercially available transfer printing paper, the transfer printing film is a high polymer film such as polyester, and the transfer printing metal film can be a film such as aluminum alloy.
In the step (2), the certain temperature is 90-200 ℃, the certain time is 5s-2min, and the pressure is 0-5 MPa.
In the step (3), the separation method is mechanical separation. Manual and mechanical equipment can be adopted, the separating tension is 0-5N, the speed is 0-100cm/s and the direction is 0-180 degrees.
The waterproof moisture permeable nanofiber membrane printed product is subjected to performance test, including fastness test and wearability test, wherein the fastness test comprises dry and wet rubbing fastness, water fastness and light fastness; the wearing performance test comprises the tests of mechanical property, air permeability and waterproof performance. The dry and wet rubbing fastness is determined according to the national standard GB/T3920-2008 friction fastness in the textile color fastness test, the water fastness is determined according to the national test standard GB/T5713-: xenon arc, tensile mechanical properties refer to the determination of tensile properties of plastics in national standard GB/T1040.2-2006, air permeability refers to the determination of air permeability of textile fabrics in national standard GB/T5453, moisture permeability refers to the test method for water vapor permeability of plastic films and sheets in national standard GB/T1037 (cup method), and water resistance refers to the detection and static water pressure evaluation of water resistance of textiles in national standard GBT 4744 and 2013.
Example 1
A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing the designed pattern on the transfer printing paper by a printing method.
(2) The waterproof moisture-permeable nanofiber membrane is placed on a thermal transfer printing device, then the surface of the transfer printing paper printed with the pattern is tightly contacted with the waterproof moisture-permeable nanofiber membrane under the pressure of 2.1 MPa, the pressure is maintained for 70s at the temperature of 100 ℃, and the printed waterproof moisture-permeable nanofiber membrane is attached to the transfer printing paper.
(3) Taking the nano fiber film out of the thermal transfer printing machine, separating the printed waterproof moisture-permeable nano fiber film from the transfer printing paper, and obtaining the waterproof moisture-permeable nano fiber film printed product with the separation tension of 3N, the speed of 10cm/s and the direction of 80 degrees.
The test results are: the dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness is 4-5 grade. In the aspect of tensile mechanical property, the tensile strength is improved by 113.2 percent; in the aspect of moisture permeability, the moisture permeability is improved by 187.1 percent; in the aspect of waterproofness, the hydrostatic pressure resistance is improved by 29.4 percent.
Example 2
A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing the designed pattern on the high polymer film by a printing method.
(2) The waterproof moisture-permeable nanofiber membrane is placed on a thermal transfer printing device, then the surface of the high polymer film, on which the pattern is printed, is in close contact with the waterproof moisture-permeable nanofiber membrane under the pressure of 1.8 MPa, then the waterproof moisture-permeable nanofiber membrane is kept at the temperature of 120 ℃ for 40s, and the printed waterproof moisture-permeable nanofiber membrane and the high polymer film are attached together.
(3) Taking the nano fiber film out of the thermal transfer printing machine, separating the printed waterproof moisture-permeable nano fiber film from the high polymer film, and obtaining the waterproof moisture-permeable nano fiber film printed product, wherein the separation tension is 4N, the speed is 30cm/s, and the direction is 70 degrees.
The test results are: the dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness is 4-5 grade. In the aspect of tensile mechanical property, the tensile strength is improved by 13.0 percent; in the aspect of moisture permeability, the moisture permeability is improved by 170.6 percent; in the aspect of waterproofness, the hydrostatic pressure resistance is improved by 34.9 percent.
Example 3
A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing the designed pattern on the high polymer film by a printing method.
(2) The waterproof moisture-permeable nanofiber membrane is placed on a thermal transfer printing device, then the surface of the high polymer film, on which the pattern is printed, is in close contact with the waterproof moisture-permeable nanofiber membrane under the pressure of 1.5 MPa, then the waterproof moisture-permeable nanofiber membrane is kept at the temperature of 130 ℃ for 30s, and the printed waterproof moisture-permeable nanofiber membrane and the high polymer film are attached together.
(3) Taking the nano fiber film out of the thermal transfer printing machine, separating the printed waterproof moisture-permeable nano fiber film from the high polymer film, and obtaining the waterproof moisture-permeable nano fiber film printed product, wherein the separation tension is 2.5N, the speed is 35cm/s, and the direction is 120 degrees.
The test results are: the dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness is 4-5 grade. In the aspect of tensile mechanical property, the tensile strength is improved by 32.1 percent; in the aspect of moisture permeability, the moisture permeability is improved by 153.7 percent; in the aspect of waterproofness, the hydrostatic pressure resistance is improved by 32.5 percent.
Example 4
A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing the designed pattern on the high polymer film by a printing method.
(2) The waterproof moisture-permeable nanofiber membrane is placed on a thermal transfer printing device, then the surface of the high polymer film, on which the pattern is printed, is in close contact with the waterproof moisture-permeable nanofiber membrane under the pressure of 1.7 MPa, then the waterproof moisture-permeable nanofiber membrane is kept at the temperature of 140 ℃ for 20s, and the printed waterproof moisture-permeable nanofiber membrane and the high polymer film are attached together.
(3) Taking the nano fiber film out of the thermal transfer printing machine, separating the printed waterproof moisture-permeable nano fiber film from the high polymer film, and obtaining the waterproof moisture-permeable nano fiber film printed product, wherein the separation tension is 1.5N, the speed is 10cm/s, and the direction is 70 degrees.
The test results are: the dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness is 4-5 grade. In the aspect of tensile mechanical property, the tensile strength is improved by 69.1 percent; in the aspect of moisture permeability, the moisture permeability is improved by 169.7 percent; in the aspect of waterproofness, the hydrostatic pressure resistance is improved by 32.3 percent.
Example 5
A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane comprises the following steps:
(1) printing the designed pattern on the transfer printing metal film by a printing method.
(2) The waterproof moisture-permeable nanofiber membrane is placed on a thermal transfer printing device, then the surface of the transfer printing metal membrane printed with the pattern is in close contact with the waterproof moisture-permeable nanofiber membrane under the pressure of 1.6 MPa, then the surface is kept at the temperature of 120 ℃ for 30s, and the printed waterproof moisture-permeable nanofiber membrane and the transfer printing metal membrane are attached together.
(3) Taking the nano fiber film out of a thermal transfer printing machine, separating the printed waterproof moisture-permeable nano fiber film from a transfer printing metal film, and obtaining a waterproof moisture-permeable nano fiber film printing product with the separation tension of 2.3N, the speed of 15cm/s and the direction of 75 degrees.
The test results are: the dry rubbing fastness is 3-4 grade, the wet rubbing fastness is 3-4 grade, the water fastness is 5 grade, and the light fastness is 4-5 grade. In the aspect of tensile mechanical property, the tensile strength is improved by 55.7 percent; in the aspect of moisture permeability, the moisture permeability is improved by 156.5 percent; in the aspect of waterproofness, the hydrostatic pressure resistance is 31.0 percent.
TABLE 1 fastness test results of nanofiber membranes before and after transfer printing
| Sample number | Fastness to dry rubbing | Fastness to wet rubbing | Fastness to water | Color fastness to |
| 1 | 3-4 | 3-4 | 5 | 4-5 |
| 2 | 2-3 | 2-3 | 4 | 4-5 |
| 3 | 2-3 | 2-3 | 4 | 4-5 |
| 4 | 3-4 | 3-4 | 5 | 4-5 |
| 5 | 3-4 | 3-4 | 5 | 4-5 |
Table 2 results of testing tensile mechanical properties of nanofiber membranes before and after transfer printing
| Test specimen | Average force value (N) | Displacement (mm) | Tensile strength (MPa) | Strain (%) |
| 0 (original) | 2.52 | 109.65 | 3.97 | 219.3 |
| 1 | 5.12 | 42.73 | 8.46 | 85.5 |
| 2 | 2.82 | 24.25 | 4.49 | 48.5 |
| 3 | 3.16 | 36.15 | 5.25 | 72.3 |
| 4 | 3.99 | 33.77 | 6.71 | 67.5 |
| 5 | 3.68 | 34.57 | 6.18 | 68.5 |
TABLE 3 test results of moisture permeability and water resistance of nanofiber membranes before and after transfer printing
| Sample number | Moisture permeability (g/m)2﹒24h) | Hydrostatic pressure resistance (Kpa) |
| 0 (original) | 2525 | 6.57 |
| 1 | 3267 | 18.86 |
| 2 | 3406 | 17.78 |
| 3 | 3345 | 16.67 |
| 4 | 3340 | 17.72 |
| 5 | 3309 | 16.85 |
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A thermal transfer printing method of a waterproof moisture-permeable nanofiber membrane is characterized by comprising the following steps:
(1) printing patterns on a printing medium: printing a pattern on a transfer medium with an ink jet printer for thermal transfer printing;
(2) transferring the pattern from the print medium onto a waterproof moisture-permeable nanomembrane: controlling proper temperature, time and pressure to transfer the pattern from the printing medium to the waterproof moisture-permeable nanofiber membrane;
(3) separating the printing medium from the printed waterproof moisture-permeable nano-film: the printing medium is separated from the printed waterproof moisture-permeable nanofiber membrane by adopting a mechanical separation method, and the separation tension, speed and direction are controlled.
2. The thermal transfer printing method of the waterproof moisture-permeable nanofiber membrane according to claim 1, characterized in that: the transfer medium in the step (1) is transfer printing paper, a transfer printing film or a transfer printing metal film.
3. The thermal transfer printing method of the waterproof moisture-permeable nanofiber membrane according to claim 1, characterized in that: in the step (2), the temperature is controlled to be 90-200 ℃, the time is 5s-2min, and the pressure is 0.3-5 MPa.
4. The thermal transfer printing method of the waterproof moisture-permeable nanofiber membrane according to claim 1, characterized in that: in the step (3), the separating tension is 0.5-5N, the speed is 0.1-100cm/s and the direction is 2-180 degrees.
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