CN111058296A - Anti-adhesion fabric for speed reducer and preparation process thereof - Google Patents
Anti-adhesion fabric for speed reducer and preparation process thereof Download PDFInfo
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- CN111058296A CN111058296A CN201911416262.5A CN201911416262A CN111058296A CN 111058296 A CN111058296 A CN 111058296A CN 201911416262 A CN201911416262 A CN 201911416262A CN 111058296 A CN111058296 A CN 111058296A
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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
- D06N3/12—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
- D06N3/145—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 two or more layers of polyurethanes
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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
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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
- D06N3/0015—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
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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
- D06N3/007—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
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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
- D06N3/0086—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
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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
- D06N3/12—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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- 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
- D06N2211/26—Vehicles, transportation
- D06N2211/267—Aircraft
Abstract
The invention discloses an anti-adhesion fabric for a speed reducing umbrella, wherein base cloth is polyarylate silk woven by polyarylate fibers; the coating is a polyurethane composite coating; the air permeability of the polyarylate silk fabric is not more than 15L/m2S; the weight is as follows: 85 to 110g/m2(ii) a The invention also discloses a preparation process of the anti-adhesion fabric for the speed reducer umbrella, which comprises a coating process of the base cloth, and comprises the following steps: fabric pretreatment and coating application; pretreatment of the fabric: before coating, calendering and waterproofing treatment are carried out on the woven base cloth; coating: the method comprises the coating of a bottom layer coating and a surface layer coating, wherein the bottom layer coating and the surface layer coating are directly coated by adopting a scraper. The invention adopts the polyarylate fiber as the base cloth and the polyurethane coating to coat and obtain the anti-adhesion fabric for the speed reducing umbrella, and the anti-adhesion performance, the air permeability, the weight, the tearing strength and the fracture performance of the anti-adhesion fabric can reach the anti-adhesion performance of the speed reducing umbrellaAnd (5) connecting the requirements.
Description
Technical Field
The invention relates to the technical field of fabric for a speed reducing parachute, in particular to an anti-adhesion fabric for the speed reducing parachute and a preparation process thereof.
Background
Drag umbrellas, also known as drogues, are umbrella-like tools used to reduce the speed of the aircraft in landing. Usually consists of a main umbrella, a guide umbrella, an umbrella bag and the like, and is arranged in an umbrella cabin at the tail part of an airplane. The requirements for the speed reducing umbrella need to meet: weighing test is less than or equal to 120g/m2(ii) a The air permeability is less than or equal to 20L/square meter.s (200mm pressure difference); the tearing strength is more than or equal to 170N (warp direction/weft direction); the adhesion force of the umbrella cover is not more than 1N in the storage period (17 years).
Disclosure of Invention
Aiming at the prior art, the invention provides an anti-adhesion fabric for a speed reducing umbrella.
The invention also discloses a preparation process of the anti-adhesion fabric for the speed reducer umbrella.
The invention is realized by the following technical scheme: an anti-adhesion fabric for a speed reducing umbrella comprises a base cloth and a coating, wherein the base cloth is polyarylate silk woven by polyarylate fibers; the coating is a polyurethane composite coating; the air permeability of the polyarylester silk fabric is not more than 15L/square meter/s; the weight is as follows: 85 to 110g/m2。
The anti-adhesion fabric is prepared from the following warp and weft raw materials: 1/110dtex polyarylate fiber, its total number of warp is 4640; the weft density of the loom in the weaving process is 28 pieces/cm; the fabric weave is plain weave, and the width of the loom reed is 146 cm. The anti-adhesion fabric can meet the requirements of the fairway drogue on weaving performances such as anti-adhesion, air permeability, tearing strength and the like.
Further, the polyurethane composite coating comprises a bottom coating and a surface coating, and the bottom coating and the surface coating are sequentially coated on the base cloth.
Further, the bottom coating comprises the following components: 100-120 parts of polyurethane A, 10-20 parts of toluene, 10-15 parts of a cross-linking agent and 2-4 parts of an accelerating agent. The surface coating comprises the following components: 80-100 parts of polyurethane B, 20-25 parts of organic silicon resin, 10-20 parts of toluene, 3-5 parts of a cross-linking agent, 3-5 parts of an anti-sticking agent and 0.4-0.6 part of an antioxidant; the mass ratio of the polyurethane B to the silicone resin is 4: 1.
The bottom coating is made of polyurethane adhesive with excellent performance, so that the bottom coating has good film forming property and the adhesive force between the bottom coating and the fabric is enhanced. The surface coating adopts polyurethane resin and is added with organic silicon resin so as to meet the requirements of softness and anti-adhesion performance of the product and soft and smooth hand feeling. The proportion of the organic silicon resin and the polyurethane B in the surface coating is set to enable all indexes of the product to reach the optimal balance point, and the flexibility and the anti-adhesion performance of the product are effectively improved.
Further, the weight of the coating is 2-2.2% of the weight of the base cloth.
The invention also provides a preparation process of the anti-adhesion fabric for the speed reducer umbrella, which comprises a coating process of coating the base cloth, wherein the coating process comprises the following steps: fabric pretreatment and coating application;
A) pretreatment of the fabric: before coating, calendering and waterproofing treatment are carried out on the woven base cloth;
B) coating: the method comprises the steps of coating a bottom layer coating and a surface layer coating, wherein both the bottom layer coating and the surface layer coating are directly coated by adopting a scraper;
the base cloth is woven by polyarylate fibers.
The base cloth is subjected to soft calendering treatment before the coating is coated, so that the problem of hard hand feeling of the base cloth can be solved, the base cloth is soft in hand feeling and better in softness, the surface of the base cloth can be smoother and smoother, the air tightness is better, the permeation and the use amount of coating slurry are reduced, and the same air permeability requirement can be met under the condition of less coating use amount; the waterproof treatment can improve the hand feeling of the base cloth after coating, so that the base cloth is softer, and the damage of the coating to tearing strength is reduced.
Wherein, the technological parameters of the calendering treatment are as follows: the temperature is 120 ℃, the linear pressure is 250-300N/cm, and the speed is 30 m/min;
the waterproof treatment adopts a two-dipping and two-rolling process, and the process parameters are as follows: the slurry adopts 10-15g/l of organic silicon waterproofing agent, the rolling speed is 30m/min, and the drying temperature is 120 ℃.
Further, the coating is appliedThe parameters of (A) are as follows: the feeding amount is 25 +/-5 g/m2(ii) a The drying temperature in the coating process is 165-170 ℃, the drying time is 1.2-1.4 min, and the coated coating is flat and free of pinholes, uniform in thickness, uniform in coupon collecting tension and flat and free of wrinkles after being rolled.
Further, the weaving process of the base fabric comprises the following steps,
s1) pretreatment of the warp: pretreating the warp yarns by adopting a three-section type whole pulp parallel unit, wherein the concentration of the pulp is 12-16 grids;
s2) weaving: weaving the base fabric by adopting a rigid rapier loom;
the warp and weft yarns do not go through a yarn twisting process before weaving.
Further, the weaving process parameters of the polyarylate silk fabric are as follows: 1/110dtex polyarylester is adopted as a warp and weft raw material; the weaving parameters are as follows: the reed number is 16 feather/cm; the side reed number is 10 feather/cm; weaving 1 heddle/heddle and 2 heddle/reed; side-through, 1 harness/harness, 4 harness/reed; fabric weave: plain weaving; number of shuttle boxes and weft accumulators: 1-1 single beam; the weft density on the machine is as follows: 28 roots/cm; and (3) weaving reed width: 146 cm.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the anti-adhesion fabric for the speed reducer adopts the polyarylate fiber as the base cloth and the polyurethane coating to coat the coating, so that the anti-adhesion fabric for the speed reducer is obtained, and the anti-adhesion performance, the air permeability, the weight, the tearing strength and the fracture performance of the anti-adhesion fabric can meet the anti-adhesion requirements of the speed reducer.
(2) According to the preparation process of the anti-adhesion fabric for the speed reducer parachute, the calendering treatment and the waterproof treatment are adopted before the coating process is carried out on the base cloth, the base cloth is pretreated, the base cloth is softer, the damage of a coating to tearing strength is reduced, and meanwhile, the air permeability performance of the fabric can be improved.
(3) The preparation process of the anti-adhesion fabric for the speed reducer eliminates the twisting process, reduces the mass ratio of the fabric, improves the breaking strength and the appearance quality of warp and weft raw materials, and simultaneously ensures the requirement of the air permeability of the fabric.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The embodiment of the invention is adopted, and the detailed description is omitted.
An anti-adhesion fabric for a speed reducing umbrella comprises a base cloth and a coating, wherein the base cloth is polyarylate silk woven by polyarylate fibers; the coating is a polyurethane composite coating; the air permeability of the polyarylester silk fabric is not more than 15L/square meter/s; the weight is as follows: 85 to 110g/m2。
The anti-adhesion fabric is prepared from the following warp and weft raw materials: 1/110dtex polyarylate fiber, its total number of warp is 4640; the weft density of the loom in the weaving process is 28 pieces/cm; the fabric weave is plain weave, and the width of the loom reed is 146 cm. The anti-adhesion fabric can meet the requirements of the fairway drogue on weaving performances such as anti-adhesion, air permeability, tearing strength and the like.
The polyurethane composite coating comprises a bottom coating and a surface coating, wherein the bottom coating and the surface coating are sequentially coated on the base cloth.
The bottom coating comprises the following components: 100-120 parts of polyurethane A, 10-20 parts of toluene, 10-15 parts of a cross-linking agent and 2-4 parts of an accelerating agent. The surface coating comprises the following components: 80-100 parts of polyurethane B, 20-25 parts of organic silicon resin, 10-20 parts of toluene, 3-5 parts of a cross-linking agent, 3-5 parts of an anti-sticking agent and 0.4-0.6 part of an antioxidant; the mass ratio of the polyurethane B to the silicone resin is 4: 1.
Wherein, the first and second connecting parts are connected with each other; the polyurethane A and the polyurethane B are both thermoplastic polyether polyurethanes, and the hard-soft segment ratio of the polyurethane A is larger than that of the polyurethane B, namely the hardness of the polyurethane A is larger than that of the polyurethane B.
The coating is directly coated by a scraper at 165-170 ℃.
After the traditional coating is coated on the fabric, the adhesion of the coating makes the yarn slippage of the fabric difficult, the tearing capability is reduced, and the tearing performance of the fabric is influenced. The requirement of the deceleration parachute on the tearing strength is very high, so that in the coating selection process, good anti-adhesion performance can be achieved, and meanwhile, the tearing performance of the fabric cannot be obviously influenced.
Therefore, the invention adopts the polyurethane coating as the coating, which not only can improve the anti-adhesion performance of the fabric, but also can improve the tearing performance of the fabric. Meanwhile, 10-15 parts of cross-linking agent, preferably 12 parts of cross-linking agent is added to the bottom coating. In the coating process, polyurethane A molecules are quickly crosslinked into a film at high temperature to form a thermosetting reticular film without DMF residue, so that the bottom layer coating has good adhesion, good air tightness and good hand feeling and softness.
The surface layer coating adopts the mass ratio of polyurethane B to organic silicon resin as 4: 1. Under the proportion, the tearing performance and each index of the fabric reach the optimal balance point, and the flexibility and the anti-adhesion performance of the fabric are effectively improved. The surface layer coating is directly coated by a scraper at 165-170 ℃ in the coating process, so that cross-linking is formed among polyurethane B molecules and among polyurethane B and organic silicon resin, and meanwhile, cross-linking is also formed between the surface layer coating and the bottom layer coating, so that good adhesion between the surface layer coating and the bottom layer coating is realized, and further good adhesion between the coating and the base cloth is realized.
The anti-sticking agent added in the surface layer coating can further improve the anti-sticking performance of the fabric, so that the fabric can keep non-sticking under temperature and pressure, and the condition of fabric sticking can not occur in the storage period of 17 years.
Because the environment condition of the deceleration umbrella in the use process is variable, an antioxidant is also added into the surface layer coating. Although polyurethanes and silicone resins already have good weathering properties and good resistance to high and low temperatures. However, the antioxidant is further added into the surface layer coating, so that the weather resistance of the coating is further improved, and the weather resistance of the speed reducing umbrella is better.
In the non-opening process of the speed-reducing umbrella, the speed-reducing umbrella needs to be compressed and stored as much as possible so as to reduce the occupied space of the speed-reducing umbrella, and therefore the flexibility of the speed-reducing umbrella needs to be good, and the performance of the speed-reducing umbrella is not affected when the speed-reducing umbrella is compressed and stored as much as possible.
The weight of the coating is 2-2.2% of that of the base fabric, so that the requirement of the speed reducing umbrella on the air permeability of the fabric can be met, and the weight of the fabric is not increased.
The preparation process of the anti-adhesion fabric for the speed reducer umbrella comprises the following steps:
the method specifically comprises the following steps:
s1) pretreatment of the warp: pretreating the warp yarns by adopting a three-section type whole pulp parallel unit, wherein the concentration of the pulp is 12-16 grids;
s2) weaving: weaving the base fabric by adopting a rigid rapier loom, wherein the weaving process parameters are as follows: 1/110dtex polyarylester is adopted as a warp and weft raw material; the weaving parameters are as follows: the reed number is 16 feather/cm; the side reed number is 10 feather/cm; weaving 1 heddle/heddle and 2 heddle/reed; side-through, 1 harness/harness, 4 harness/reed; fabric weave: plain weaving; number of shuttle boxes and weft accumulators: 1-1 single beam; the weft density on the machine is as follows: 28 roots/cm; and (3) weaving reed width: 146 cm.
The warp and weft yarns do not go through a yarn twisting process before weaving.
S1), the pretreatment of the warp yarn comprises a warping process, a sizing process, a beam combining process and a leasing process.
Wherein, the warping technology adopts an expert 1200 type warping machine, and the technological parameters are as follows: reed specification: 120 feather/cm, reeding mode: 1, threading a reed and leaving the reed empty; warping tension: 22 g/root; s-stick tension: 32 g/root.
Wherein, the pulp warp process adopts an expert 600 type pulp silk machine, and the process parameters are as follows: the slurry concentration is 14 grids; the vehicle speed is 80 m/min; the releasing tension is 65 g/root; 70 g/root at the beginning of coiling tension and 65 g/root at the end of coiling tension; the cylinder temperatures are respectively as follows in sequence: 145 deg.C, 140 deg.C, 135 deg.C, 130 deg.C.
Wherein, the shaft combining process adopts an expert 300 type shaft combining machine, and the process parameters are as follows: the vehicle speed is 75 m/min; reed specification: 120 feather/cm; a reeding mode: threading 2 reed and leaving one reed empty; the releasing tension is 160 g/root; the winding tension was 170 g/package at the beginning and 165 g/package at the end.
Wherein, the technological parameters of the leasing process are as follows: the speed of the vehicle is 60m/min, the wire moving length is 3.5 grids, and the wire-separating form is as follows: one above the other.
S3) coating process:
A) pretreatment of the fabric: before coating, calendering and waterproofing treatment are carried out on the woven base cloth;
B) coating: the method comprises the steps of coating a bottom layer coating and a surface layer coating, wherein both the bottom layer coating and the surface layer coating are directly coated by adopting a scraper; the total loading of the bottom coating and the surface coating is 25 +/-5 g/m2(ii) a The drying temperature in the coating process is 165-170 ℃, and the drying time is 1.2-1.4 min.
Wherein the calendering parameters are as follows: the temperature is 120 ℃, the linear pressure is 250-300N/cm, and the speed is 30 m/min;
wherein the waterproof treatment parameters are as follows: the process adopts a two-dipping and two-rolling process, the slurry adopts an organic silicon waterproofing agent with the concentration of 10-15g/l, the rolling speed is 30m/min, and the drying is carried out at 120 ℃.
The results of the performance tests of the base fabric and the product fabric are shown in tables 1 and 2. The detection standard is carried out according to a detection method specified in GJB1459-1992 'naming method of special industrial textile fabrics, silks, ropes, belts and threads' and GB/T1.1-2009 'basic regulation written by Standard of the guidelines for the work and regulations'.
As shown in Table 1, the base fabric prepared in the above examples has properties such as weight, warp/weft strength, warp/weft breaking elongation and the like which meet the physical and mechanical property requirements of the base fabric.
As shown in table 2, when the base fabric prepared in the above example is coated with the coating, the fabric performance after coating is excellent, and all the fabric performance requirements of the speed reducer umbrella can be met.
TABLE 1 physical and mechanical Properties of the base Fabric
TABLE 2 Properties of the product fabrics
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. An anti-adhesion fabric for a speed reducer umbrella, characterized in that: the base cloth is polyarylate silk woven by polyarylate fibers; the coating is a polyurethane composite coating; the air permeability of the polyarylate silk fabric is not more than 15L/m2S; the weight is as follows: 85 to 110g/m2。
2. An anti-adhesion fabric for a drogue umbrella according to claim 1, characterized in that: the polyurethane composite coating comprises a bottom coating and a surface coating, and the bottom coating and the surface coating are sequentially coated on the base cloth.
3. An anti-adhesion fabric for a drogue as claimed in claim 2, characterized in that: the bottom layer coating comprises the following components: 100-120 parts of polyurethane A, 10-20 parts of toluene, 10-15 parts of a cross-linking agent and 2-4 parts of an accelerator.
4. An anti-adhesion fabric for a drogue as claimed in claim 2, characterized in that: the surface coating comprises the following components: 80-100 parts of polyurethane B, 20-25 parts of organic silicon resin, 10-20 parts of toluene, 3-5 parts of a cross-linking agent, 3-5 parts of an anti-sticking agent and 0.4-0.6 part of an antioxidant; the mass ratio of the polyurethane B to the silicone resin is 4: 1.
5. An anti-adhesion fabric for a speed reducer umbrella as claimed in any one of claims 1 to 4, wherein: the weight of the coating is 2% -2.2% of that of the base cloth.
6. A preparation process of an anti-adhesion fabric for a speed reducer umbrella is characterized by comprising a coating process of a base fabric, wherein the coating process comprises the following steps: fabric pretreatment and coating application;
pretreatment of the fabric: before coating, calendering and waterproofing treatment are carried out on the woven base cloth;
coating: the method comprises the steps of coating a bottom layer coating and a surface layer coating, wherein both the bottom layer coating and the surface layer coating are directly coated by adopting a scraper;
the base cloth is woven by polyarylate fibers.
7. An anti-adhesion fabric for a drogue umbrella according to claim 6, characterized in that: the parameters of the calendering treatment in A) are as follows: the temperature is 120 ℃, the linear pressure is 250-300N/cm, and the speed is 30 m/min; the waterproof treatment adopts the process of two-dipping and two-rolling for sizing, the slurry adopts 10-15g/l of organic silicon waterproof agent, the rolling speed is 30m/min, and the drying is carried out at 120 ℃.
8. An anti-adhesion fabric for a drogue umbrella according to claim 6, characterized in that: the parameters of coating application are as follows: the feeding amount is 25 +/-5 g/m2(ii) a The drying temperature in the coating process is 165-170 ℃, and the drying time is 1.2-1.4 min.
9. An anti-adhesion fabric for a drogue umbrella according to claim 6, characterized in that: the weaving process of the base fabric comprises the following steps,
s1) pretreatment of the warp: pretreating the warp yarns by adopting a three-section type whole pulp parallel unit, wherein the concentration of the pulp is 12-16 grids;
s2) weaving: weaving the base fabric by adopting a rigid rapier loom;
the warp and weft yarns do not go through a yarn twisting process before weaving.
10. An anti-adhesion fabric for a drogue as claimed in claim 9, characterized in that: in the S2), the weaving process parameters of the polyarylate silk fabric are as follows: 1/110dtex polyarylester is adopted as a warp and weft raw material; the weaving parameters are as follows: the reed number is 16 feather/cm; the side reed number is 10 feather/cm; weaving 1 heddle/heddle and 2 heddle/reed; side-through, 1 harness/harness, 4 harness/reed; fabric weave: plain weaving; number of shuttle boxes and weft accumulators: 1-1 single beam; the weft density on the machine is as follows: 28 roots/cm; and (3) weaving reed width: 146 cm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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