CN113999501A - Near-infrared camouflage master batch, preparation method thereof, near-infrared camouflage fiber and fabric - Google Patents
Near-infrared camouflage master batch, preparation method thereof, near-infrared camouflage fiber and fabric Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention relates to the technical field of camouflage materials, and provides a near-infrared camouflage master batch, a preparation method thereof, near-infrared camouflage fibers and a fabric. The invention dopes the functional powder into the terylene to obtain the near infrared camouflage master batch, and the master batch can be used for preparing the fiber with camouflage effect. The camouflage fabric prepared from the fibers does not need to mix the components of the dye, does not need to carry out complex dyeing on the fibers, has good camouflage effect, and is not influenced by the dyeing method. Furthermore, the invention can regulate and control the near-infrared reflectivity of the near-infrared camouflage fabric by adjusting the type and the addition amount of the functional powder, thereby obtaining the camouflage fabric suitable for different environments.
Description
Technical Field
The invention relates to the technical field of camouflage materials, in particular to a near-infrared camouflage master batch, a preparation method thereof, near-infrared camouflage fibers and a fabric.
Background
With the continuous progress of science and technology, a variety of high-end detection and guidance equipment is put into military application, so that modern detection and aiming technology is developed to a high level. It becomes important to make corresponding improvements to the corresponding anti-spying and disguising devices. The camouflage technology can reduce the probability that military targets are discovered by detection equipment such as infrared and radar through controlling the sound of personnel, the infrared characteristics of the surface of equipment, the reflection frequency of light and radar waves and the like.
Compared with other detection technologies, the infrared detection technology has obvious advantages in aspects of detection distance, precision, concealment, anti-interference performance and the like, can realize detection of objects in dark environments such as night and the like, and is most widely applied. Therefore, it becomes important to develop infrared camouflage technology for reducing the infrared emission of equipment and weakening the infrared detection efficiency of enemies and corresponding near infrared camouflage materials.
Any object higher than the absolute temperature can be used as an infrared radiation source, and the infrared radiation source has high transmittance to infrared rays with the wavelength of 0.76-1.5 mu m, 3-5 mu m and 8-14 mu m 3 wave bands in the atmosphere. The near-infrared detection band is mainly concentrated at 700-1200 nm, and the band is close to the visible light band, so that the penetrating power is stronger. Near infrared light is colorless, and a person can see the brightness of an object through a reconnaissance device, and the brightness is correlated with the reflectivity of the object. The object is detected because the brightness of the object is different from that of the background, so that the brightness of the object is similar to that of the background, and the object and the background have similar reflectivity in the near infrared band.
In the current research, camouflage is mostly realized by adopting camouflage dye. The camouflage dye mainly comprises vat dye and disperse dye and is suitable for dyeing cotton and polyester-cotton blended fabrics. The method needs to prepare the dye firstly and then dye the fabric, the steps are complex, and the dyeing effect is greatly influenced by the dyeing method.
Disclosure of Invention
In view of the above, the invention provides a near-infrared camouflage master batch, a near-infrared camouflage fiber, a preparation method thereof and a fabric. The near-infrared camouflage fiber provided by the invention does not need dyeing, can adapt to a broad-spectrum changing environment, and has a good camouflage effect.
In order to achieve the above object, the present invention provides the following technical solutions:
a near-infrared camouflage master batch is prepared from functional powder and chemical fibers; the functional powder comprises one or more of aluminum powder, cobalt powder, rare earth powder and zinc oxide powder; the aluminum powder comprises metal aluminum powder or aluminum-doped zinc oxide, the cobalt powder comprises cobalt-containing metal oxide or cobalt-containing mineral salt, and the rare earth powder comprises rare earth-containing metal oxide or rare earth-containing mineral salt; the mass fraction of the functional powder in the near-infrared camouflage master batch is more than 10%.
Preferably, the mass fraction of the functional powder in the near-infrared camouflage master batch is 10-50%.
Preferably, the functional powder is a functional fine powder, and the particle size of the functional fine powder is 20nm to 5 μm.
Preferably, the chemical fiber comprises terylene or chinlon.
The invention also provides a preparation method of the near-infrared camouflage master batch, which comprises the following steps: and mixing the functional powder with chemical fibers, and performing melt extrusion to obtain the near-infrared camouflage master batch.
The invention also provides a near-infrared camouflage fiber, which is obtained by blending the near-infrared camouflage master batch and the chemical fiber in the scheme; the mass fraction of the functional powder in the near-infrared camouflage fiber is more than 0.1 percent based on 100 percent of the mass of the near-infrared camouflage fiber.
Preferably, the mass fraction of the functional powder in the near-infrared camouflage fiber is 0.1-5%.
Preferably, when the functional powder in the near-infrared camouflage fiber is aluminum powder and zinc oxide, the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 0.1-2%, and the mass fraction of the zinc oxide in the near-infrared camouflage fiber is 0.1-2%;
when the functional powder in the near-infrared camouflage fiber is cobalt powder, the mass fraction of the cobalt powder in the near-infrared camouflage fiber is 0.1-2.5%;
when the functional powder in the near-infrared camouflage fiber is rare-earth powder, the mass fraction of the rare-earth powder in the near-infrared camouflage fiber is 0.1-2.5%.
The invention also provides an infrared camouflage fabric which is prepared from the near infrared camouflage fiber.
The invention provides a near-infrared camouflage master batch, which is prepared from the raw materials of functional powder and chemical fibers; the functional powder comprises one or more of aluminum powder, cobalt powder, rare earth powder and zinc oxide powder; the aluminum powder comprises metal aluminum powder and/or aluminum-doped zinc oxide, the cobalt powder is cobalt-containing metal oxide or cobalt-containing mineral salt, and the rare earth powder is rare earth-containing metal oxide or rare earth-containing mineral salt; the mass fraction of the functional powder in the near-infrared camouflage master batch is more than 10%. The invention dopes the functional powder into the chemical fiber to obtain the near-infrared camouflage master batch, and the master batch can be used for preparing the fiber with the camouflage effect.
The invention provides a near-infrared camouflage fiber, which is obtained by blending the near-infrared camouflage master batch and terylene according to the scheme; the mass fraction of the functional powder in the near-infrared camouflage fiber is more than 0.1 percent based on 100 percent of the mass of the near-infrared camouflage fiber. The invention obtains the fiber with the camouflage effect by blending the near-infrared camouflage master batch and the terylene, and the camouflage fabric prepared by adopting the fiber does not need dyeing, blending of components of dye and complex dyeing of the fiber, has good camouflage effect and does not influence the camouflage effect by a dyeing method. Furthermore, the infrared reflectivity of the near-infrared camouflage fiber can be regulated and controlled by regulating the type and the addition amount of the functional powder, so that the camouflage fiber suitable for different environments is obtained.
Drawings
FIG. 1 shows the reflectivity test results of No. 1-6 fabrics and comparative samples 1-2 in the near infrared band;
FIG. 2 shows the results of the reflectance test of No. 6 fabric and No. 7 fabric in the near infrared band;
FIG. 3 shows the observation results of the No. 6 fabric and the comparison samples 1-2 under a near-infrared observation instrument;
fig. 4 is an observation result of the comparison samples 1, 6 and 7 with the cement ground background.
Detailed Description
The invention provides a near-infrared camouflage master batch which is prepared from functional powder and chemical fibers.
In the invention, the chemical fiber is preferably terylene or chinlon.
In the invention, the functional powder comprises one or more of aluminum powder, cobalt powder, rare earth powder, zinc oxide powder and the like; the aluminum powder comprises metal aluminum powder and/or aluminum-doped zinc oxide.
In the invention, the cobalt-based powder comprises cobalt-containing metal oxide and/or cobalt-containing mineral salt, wherein the cobalt-containing metal oxide is preferably ferric oxide containing 0.1-0.5 wt% of cobalt hydroxide; the cobalt-containing mineral salt is preferably pyrite with the cobalt content of 0.1-0.5 wt%;
in the invention, the rare earth series powder comprises rare earth metal-containing oxide and/or rare earth-containing mineral salt; the rare earth metal-containing oxide is preferably chromic oxide containing 0.05-0.5 wt% of lanthanum carbonate; the rare-earth-containing mineral salt is preferably xenotime, mica or ion-adsorption type rare-earth ore; the content of the rare earth elements in the rare earth-containing mineral salt is preferably 0.05-0.15 wt%.
In the specific embodiment of the invention, the functional powder in the near-infrared camouflage master batch is preferably aluminum powder, zinc oxide, cobalt-containing mineral salt or rare-earth-containing mineral salt, and in the specific embodiment of the invention, one functional powder is doped in each near-infrared camouflage master batch, so that the type and the amount of the functional powder can be conveniently adjusted during the subsequent preparation of the near-infrared camouflage fiber.
In the invention, the mass fraction of the functional powder in the near-infrared camouflage master batch is more than 10%, preferably 10-50%.
In the present invention, the functional powder is preferably a functional fine powder, and the particle size of the functional fine powder is preferably 20nm to 5 μm, and more preferably 100nm to 4 μm.
The invention also provides a preparation method of the near-infrared camouflage master batch, which comprises the following steps: and mixing the functional powder with chemical fibers, and performing melt extrusion to obtain the near-infrared camouflage master batch.
In the invention, the chemical fiber is preferably a chemical fiber slice, and particularly preferably a polyester slice or a chinlon slice; the melting temperature of the screw extrusion is preferably 280 ℃, and the melting extrusion is particularly preferably twin-screw extrusion; in the melt extrusion process, the chemical fiber slices are melted and fully mixed with the functional powder, and the near-infrared camouflage master batch is obtained after extrusion.
In a specific embodiment of the present invention, it is preferable that each kind of functional powder is separately screw-extruded with the chemical fiber slices to obtain a plurality of kinds of near infrared camouflage mother particles, and the obtained near infrared camouflage mother particles are aluminum series powder near infrared camouflage mother particles, cobalt series powder near infrared camouflage mother particles, rare earth series powder near infrared camouflage mother particles or zinc oxide powder near infrared camouflage mother particles, respectively, according to the kind of the functional powder.
The invention also provides a near-infrared camouflage fiber, which is obtained by blending the near-infrared camouflage master batch and terylene according to the scheme; the mass fraction of the functional powder in the near-infrared camouflage fiber is more than 0.1%, preferably 0.1-5%, and more preferably 0.5-4.5% based on 100% of the mass of the near-infrared camouflage fiber.
The specification of the near infrared camouflage fiber is not particularly required by the invention, and the specification well known to those skilled in the art can be adopted, and in the specific embodiment of the invention, the specification of the near infrared camouflage fiber is preferably 150D.
The invention also provides an infrared camouflage fabric which is prepared from the near infrared camouflage fiber prepared by the preparation method in the scheme or the near infrared camouflage fiber prepared by the preparation method in the scheme. In the invention, the near infrared camouflage fiber is preferably subjected to warp and weft weaving to obtain the infrared camouflage fabric.
In the invention, the type and the addition amount of the functional powder in the near-infrared camouflage fiber can influence the near-infrared reflectivity of the obtained fabric, and the near-infrared reflectivity of the fabric is preferably regulated and controlled by the type and the addition amount of the functional powder in the fiber so as to obtain the near-infrared camouflage fabric which is similar to the near-infrared reflectivity of a target environment. In the invention, the adjustable range of the near-infrared reflectivity of the near-infrared camouflage fabric at the position of 750-1200nm is 15-70%. In a specific embodiment of the present invention, it is preferable to first test the near-infrared reflectance of the target environment, and then debug the type and the addition amount of the functional powder according to the near-infrared reflectance of the functional powder.
In the embodiment of the present invention, it is preferable to use the powdery aluminum and the zinc oxide in a mixed manner, to use the cobalt-containing mineral salt powder alone, and to use the rare earth-containing mineral salt powder alone.
In a specific embodiment of the present invention, when the functional powder is aluminum powder and zinc oxide, the mass fraction of the aluminum powder in the near infrared camouflage fiber is preferably 0.1 to 2%, more preferably 0.4%, 0.8%, 1.2%, 1.6% or 0.5%, and the mass fraction of the zinc oxide is preferably 0.1 to 2%, more preferably 0.4%, 0.8%, 1.2%, 1.6% or 2%.
In a specific embodiment of the present invention, when the functional powder in the near-infrared camouflage fiber is cobalt powder, the mass fraction of the cobalt powder in the near-infrared camouflage fiber is preferably 0.1 to 2.5%, and more preferably 0.5 to 2%.
In an embodiment of the invention, when the functional powder in the near-infrared camouflage fiber is a rare-earth powder, the mass fraction of the rare-earth powder in the near-infrared camouflage fiber is preferably 0.1 to 2.5%, and more preferably 0.5 to 2%.
In a specific embodiment of the invention, when the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 0.4% and the mass fraction of the zinc oxide in the near-infrared camouflage fiber is 1.6%, the obtained fiber is marked as No. 1 fiber; when the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 0.8 percent and the mass fraction of the zinc oxide is 1.2 percent, marking the obtained fiber as No. 2 fiber; when the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 1.2 percent and the mass fraction of the zinc oxide is 0.8 percent, the obtained fiber is marked as No. 3 fiber; when the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 1.6 percent and the mass fraction of the zinc oxide is 0.4 percent, the obtained fiber is marked as No. 4 fiber; when the mass fraction of aluminum powder in the near-infrared camouflage fiber is 0.5 percent and the mass fraction of zinc oxide is 2 percent, the obtained fiber is marked as No. 5 fiber, 5 fibers are respectively processed into No. 1-5 near-infrared camouflage fabric, wherein the near-infrared reflectivity of the No. 1 fabric in the range of 750nm-1200nm is 26-37 percent, the near-infrared reflectivity of the No. 2 fabric in the range of 750nm-1200nm is 29-42 percent, the near-infrared reflectivity of the No. 3 fabric in the range of 750nm-1200nm is 21-34 percent, the near-infrared reflectivity of the No. 4 fabric in the range of 750nm-1200nm is 18-31 percent, and the near-infrared reflectivity of the No. 5 fabric in the range of 750nm-1200nm is 35-43 percent.
In a specific embodiment of the invention, when the functional powder is chromic oxide powder containing 0.2 wt% of lanthanum carbonate, and the mass fraction of the functional powder in the near-infrared camouflage fiber is 1%, the obtained fiber is marked as No. 6 fiber; when the functional powder is pyrite powder with a cobalt content of 0.1 wt% and the mass fraction of the functional powder in the near-infrared camouflage fiber is 1%, the obtained fiber is marked as No. 7 fiber. No. 6 and No. 7 fibers are processed to be made into a near-infrared camouflage fabric, and the near-infrared reflectivity of the obtained No. 6 fabric at the position of 750-1200nm is 9-15%; the near infrared reflectivity of the No. 7 fabric at the position of 750-1200nm is 15-18%.
In the specific embodiment of the invention, the type and the addition amount of the functional powder in the fiber can be regulated and controlled according to specific requirements, so that the near-infrared camouflage fabric with different near-infrared reflectances is obtained.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
In the following examples, aluminum powder and zinc oxide powder were purchased from new nano-materials in last-sea, chromium oxide containing 0.2% lanthanum carbonate as a rare earth oxide, pyrite containing 0.1% cobalt as a cobalt-containing mineral salt, and powders of rare earth-containing oxide and cobalt-containing mineral salt were purchased from Jiaxing Yitaile electronics, Inc.
Example 1
Mixing aluminum powder with the particle size of 1 mu m with polyester chips, performing double-screw extrusion, and preparing aluminum powder polyester master batch with the mass fraction of 20% of aluminum powder at the melting temperature of 280 ℃;
mixing zinc oxide with the particle size of 500nm with polyester chips, performing double-screw extrusion at the melting temperature of 280 ℃, and preparing zinc oxide polyester master batch with the mass fraction of zinc oxide of 40%;
200g of aluminum powder polyester master batch and 400g of zinc oxide polyester master batch are mixed with 9.4kg of polyester master batch, and spinning is carried out to obtain No. 1 fiber.
And mixing 400g of aluminum powder polyester master batch and 300g of zinc oxide polyester master batch with 9.3kg of polyester master batch, and spinning to obtain No. 2 fiber.
And mixing 600g of aluminum powder polyester master batch and 200g of zinc oxide polyester master batch with 9.2kg of polyester master batch, and spinning to obtain the No. 3 fiber.
And mixing 800g of aluminum powder polyester master batch and 100g of zinc oxide polyester master batch with 9.1kg of polyester master batch, and spinning to obtain the No. 4 fiber.
And mixing 250g of aluminum powder polyester master batch and 500g of zinc oxide polyester master batch with 9.25kg of polyester master batch, and spinning to obtain the No. 5 fiber.
In the spinning process, the spinning temperature is 280 ℃, and the fiber specification is 15D.
The contents of aluminum powder and zinc oxide in No. 1-5 fibers are shown in Table 1:
TABLE 11-5 fiber content (mass fraction) of aluminum spherulites and zinc oxide
| Numbering | Aluminum | Zinc oxide | |
| 1 | 0.4％ | 1.6％ | |
| 2 | 0.8％ | 1.2％ | |
| 3 | 1.2％ | 0.8％ | |
| 4 | 1.6％ | 0.4％ | |
| 5 | 0.5％ | 2％ |
Warp and weft weaving is carried out on No. 1-5 fibers to obtain No. 1-5 near-infrared camouflage fabric, the near-infrared reflectivity of the fabric under 800-1200 nm is tested, and the obtained results are shown in Table 2:
near-infrared reflectivity test result of No. 21-5 fabric
Example 2
Mixing rare earth-containing oxide with the particle size of 1-3 mu m with the polyester chips, performing double-screw extrusion, and preparing rare earth-containing oxide mass fraction 10% of rare earth-containing polyester master batch at the melting temperature of 280 ℃;
1kg of rare earth-based polyester master batch and 9kg of polyester master batch are mixed and spun to obtain No. 6 fiber, the spinning temperature is 280 ℃, the specification of the fiber is 15D, and the mass fraction of rare earth oxide contained in the No. 6 fiber is 1 percent.
And (3) carrying out warp and weft weaving on the No. 6 fiber to obtain No. 6 fabric, and testing the near infrared reflectivity of the No. 6 fabric, wherein the result shows that the near infrared reflectivity of the No. 6 fabric at the position of 750-1200nm is 9-15%.
Example 3
Mixing cobalt-containing mineral salt with the particle size of 500 nm-5 mu m with polyester slices, performing double-screw extrusion, and preparing a cobalt-containing polyester master batch with the cobalt-containing mineral salt mass fraction of 20%, wherein the melting temperature is 280 ℃;
500g of cobalt-series polyester master batch and 9.5kg of polyester master batch are taken, mixed and spun to obtain No. 7 near-infrared camouflage fiber, the spinning temperature is 280 ℃, the fiber specification is 15D, and the mass fraction of cobalt-containing mineral salt in the fiber is 1%.
And (3) carrying out warp and weft weaving on the No. 7 fiber to obtain No. 7 fabric, and testing the near infrared reflectivity of the No. 7 fabric, wherein the result shows that the near infrared reflectivity of the No. 7 fabric at the position of 750-1200nm is 15-18%.
Comparative examples 1 to 2
Taking the pure polyester fabric as a comparative example 1, and marking as a comparative sample 1;
the polyester fabric dyed black was used as comparative example 2 and was designated as comparative sample 2.
Test example
The reflectivity of the No. 1-6 fabrics and the comparative samples 1-2 in the near infrared band is tested, and the result is shown in figure 1. According to the graph 1, the obtained 1-6 fabrics have different near-infrared reflectivity according to different types or adding proportions of the functional powder, the reflectivity in all bands is low, and the near-infrared reflectivity of the comparison samples 1-2 in different bands is greatly changed, so that the camouflage effect is difficult to realize.
The near infrared reflectance of fabrics No. 6 and No. 7 was measured, and the results are shown in fig. 2.
And (3) observing the No. 6 fabric, the comparison sample 1 and the comparison sample 2 under a near-infrared observation instrument, wherein the instrument is an Older CS-6 type device, and the observation time is night and no bright light exists around. The observation results are shown in FIG. 3; in the figure 3, black polyester fabric, undyed polyester fabric and No. 6 fabric are sequentially arranged from top to bottom, and the lowest part is the bark of the tree in the environment. As can be seen from FIG. 3, the contrast sample 1 and the contrast sample 2 are bright white under a near-infrared observation instrument, the No. 6 fabric is darker in color, and the color of the fabric is close to that of the bark of the tree under observation, so that better camouflage can be realized.
And (3) placing the comparison samples 1, 6 plus materials and 7 plus materials in a cement ground background for observation, wherein the used instrument is an Oldham CS-6 model device, the observation time is night, and no bright light exists around the instrument. The observation results are shown in FIG. 4. The figure 4 is a contrast sample 1 (undyed fabric), a No. 6 fabric and a No. 7 fabric from left to right in sequence, the bottom cement environment is darker, the contrast sample 1 is bright white, the No. 6 fabric is the darkest in color, and the No. 7 fabric is also darker in color, is close to the cement background under observation, and can realize better camouflage.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The near-infrared camouflage master batch is characterized in that the preparation raw materials comprise functional powder and chemical fibers; the functional powder comprises one or more of aluminum powder, cobalt powder, rare earth powder and zinc oxide powder; the aluminum powder comprises metal aluminum powder or aluminum-doped zinc oxide, the cobalt powder comprises cobalt-containing metal oxide or cobalt-containing mineral salt, and the rare earth powder comprises rare earth-containing metal oxide or rare earth-containing mineral salt; the mass fraction of the functional powder in the near-infrared camouflage master batch is more than 10%.
2. The near-infrared camouflage master batch according to claim 1, wherein the mass fraction of the functional powder in the near-infrared camouflage master batch is 10-50%.
3. The near infrared camouflage mother particle according to claim 1, wherein the functional powder is functional micro powder, and the particle size of the functional micro powder is 20nm to 5 μm.
4. The near-infrared camouflage masterbatch of claim 1, wherein the chemical fibers comprise polyester or nylon.
5. The preparation method of the near-infrared camouflage master batch as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps: and mixing the functional powder with chemical fibers, and performing melt extrusion to obtain the near-infrared camouflage master batch.
6. A near-infrared camouflage fiber is characterized by being obtained by blending the near-infrared camouflage master batch and chemical fibers according to any one of claims 1 to 4; the mass fraction of the functional powder in the near-infrared camouflage fiber is more than 0.1 percent based on 100 percent of the mass of the near-infrared camouflage fiber.
7. The near-infrared camouflage fiber according to claim 6, wherein the mass fraction of the functional powder in the near-infrared camouflage fiber is 0.1-5%.
8. The near-infrared camouflage fiber according to claim 6, wherein when the functional powder in the near-infrared camouflage fiber is aluminum powder and zinc oxide, the mass fraction of the aluminum powder in the near-infrared camouflage fiber is 0.1-2%, and the mass fraction of the zinc oxide in the near-infrared camouflage fiber is 0.1-2%;
when the functional powder in the near-infrared camouflage fiber is cobalt powder, the mass fraction of the cobalt powder in the near-infrared camouflage fiber is 0.1-2.5%;
when the functional powder in the near-infrared camouflage fiber is rare-earth powder, the mass fraction of the rare-earth powder in the near-infrared camouflage fiber is 0.1-2.5%.
9. An infrared camouflage fabric, which is characterized by being prepared from the near infrared camouflage fiber of any one of claims 6 to 8.
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| CN115678404A (en) * | 2022-11-04 | 2023-02-03 | 河北省产品质量监督检验研究院 | Urban near-infrared camouflage coating, preparation method thereof, corresponding fabric and preparation method thereof |
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| CN115678404A (en) * | 2022-11-04 | 2023-02-03 | 河北省产品质量监督检验研究院 | Urban near-infrared camouflage coating, preparation method thereof, corresponding fabric and preparation method thereof |
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| CN113999501B (en) | 2023-02-21 |
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