CN111005128B - Preparation method of plaster cloth - Google Patents
Preparation method of plaster cloth Download PDFInfo
- Publication number
- CN111005128B CN111005128B CN201911410841.9A CN201911410841A CN111005128B CN 111005128 B CN111005128 B CN 111005128B CN 201911410841 A CN201911410841 A CN 201911410841A CN 111005128 B CN111005128 B CN 111005128B
- Authority
- CN
- China
- Prior art keywords
- crescent
- degrees
- spinneret
- plaster cloth
- elastic fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
- D01D5/23—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention relates to a preparation method of plaster cloth, which takes crescent elastic fiber as raw materials of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare the plaster cloth; the preparation process of the crescent elastic fiber comprises the following steps: in the process of preparing fibers from PTT according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers; the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, and two intersection points of the outer arc line M and the inner arc line N are respectively A and B; the certain conditions are as follows: by taking any crescent spinneret orifice as a reference, all other crescent spinneret orifices rotate for a certain angle relative to the reference, and the angles are randomly distributed within the range of 0-360 degrees. According to the invention, as the warp yarn and weft yarn raw materials have good three-dimensional curling performance, the prepared plaster cloth has good air permeability.
Description
Technical Field
The invention belongs to the technical field of medical and health supplies, and relates to a preparation method of plaster cloth.
Background
A medicinal plaster is prepared by refining medicinal materials, edible vegetable oil and red lead into a plaster material, and spreading the plaster material on plaster cloth to prepare an external preparation, which is used for a skin surface thin plaster, can promote the stagnation and the stagnation to directly reach the affected part, can permeate into the skin to generate the effects of diminishing inflammation, relieving pain, promoting blood circulation to remove blood stasis, tonifying qi and nourishing blood, clearing and activating the channels and collaterals, strengthening the muscles and bones, relaxing tendons and activating the collaterals, inducing resuscitation and penetrating the bones, dispelling wind and removing cold and the like.
The plaster carrier is made of paper, leather or cotton cloth, but a lot of ointment easily seeps out, dirties clothes and wastes ointment, and for the ointment which needs to be moisturized at any time or keep moisture, the ointment is easily dried in the application process, the drug effect is reduced, and the plaster carriers made of other materials are gradually replaced by non-woven fabrics along with the development of industrialization. Since the PP non-woven fabric has moisture absorption resistance, acid and alkali corrosion resistance and dissolution resistance and can better lock water, the main component of most plaster patches at present is PP. However, the plaster is often stuck on the affected part for a long time, so that the patient easily feels that the local skin is too tight and the activity is limited, and the local skin is easy to sweat and generate heat due to the airtight reason, so that the absorption of the medicine is influenced, and the skin is allergic and causes red swelling.
Therefore, it is necessary to prepare a patch having good air permeability.
Disclosure of Invention
The invention provides a preparation method of plaster cloth, and aims to solve the problem of poor air permeability of plaster cloth in the prior art.
In order to achieve the purpose, the invention adopts the following scheme:
a method for preparing plaster cloth comprises weaving crescent elastic fiber as warp and weft, and performing relaxation heat treatment to obtain plaster cloth;
the crescent elastic fiber is prepared by the following steps:
in the process of preparing fibers from PTT according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is more than 0.1 mm;
the certain conditions are as follows: the straight line of two points AB on the cross section of any crescent spinneret orifice is used as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form a certain included angle with the datum line, and the included angles are randomly distributed within the range of 0-360 degrees.
After the melt is extruded from the crescent-shaped spinneret orifices, the cooling speeds of different positions are inconsistent, the part which is cooled quickly is not easy to be drawn and thinned in the subsequent process, the stress is not concentrated, the part which is cooled slowly is easy to be drawn and thinned in the subsequent process, and the stress and the thickness are concentrated, so the stress and the thickness on the cross section of the fiber are not symmetrical, the fiber with the asymmetrical stress and the thickness on the cross section can present three-dimensional curling performance in the heat treatment or the stretching process, the curling is good, the elastic recovery rate of the fiber is high, and the stress and the thickness on the cross section can generate larger influence on the three-dimensional curling shape of the fiber at the same time, the invention controls the arrangement of the crescent-shaped spinneret orifices to meet certain conditions, so that the conditions of the stress and the thickness on the cross section of the fiber extruded from different crescent-shaped spinneret orifices are not completely same, and further the curling conditions of the fiber extruded from, the direction of filament crimp is not exactly the same. The crescent fibers in the plaster cloth have a three-dimensional curling shape, and the curling directions of different monofilaments are different to a certain extent, so that the overall bulkiness of the plaster cloth is high, the air quantity passing through the cloth in unit area in unit time is large under a certain pressure condition, and the air permeability of the plaster cloth is excellent.
As a preferable scheme:
according to the preparation method of the plaster cloth, the central angle of M is 180-330 degrees.
According to the preparation method of the plaster cloth, the intrinsic viscosity of the PTT melt is 1.00-1.15 dL/g.
In the preparation method of the plaster, the parameters of the FDY process are as follows: the spinning temperature is 270-278 ℃, the cooling temperature is 20-25 ℃, the cooling air speed is 1.80-2.00 m/s, the one-roller speed is 1600-1800 m/min, the one-roller temperature is 60-70 ℃, the two-roller speed is 2800-3000 m/min, the two-roller temperature is 125-130 ℃, and the winding speed is 2730-2910 m/min.
According to the preparation method of the plaster cloth, the crescent elastic fiber is composed of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same.
According to the preparation method of the plaster cloth, the mass ratio of warp yarns to weft yarns is 10: 8-10; the temperature of the relaxation heat treatment is 90-120 ℃, and the time is 20-30 min.
According to the preparation method of the plaster cloth, before relaxation heat treatment, the breaking strength of the crescent elastic fiber is more than or equal to 2.6cN/dtex, the elongation at break is 50.0 +/-5.0%, and the total titer is 100-150 dtex; after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the single filaments are randomly distributed in the curling direction, the curling shrinkage rate is 36-43%, the curling stability is 80-85%, the contraction elongation is 75-80%, and the elastic recovery rate of the curling is 80-85%.
In the preparation method of the plaster cloth, the gram weight of the plaster cloth is 50-70 g/m2The flow resistance is 0.08 to 0.11 KPa.s/m (measured by a KES-F8-AP1 air permeability tester, the flow resistance (R) represents the test result, and the smaller the R value, the better the air permeability).
Has the advantages that:
(1) the preparation method of the plaster cloth is simple and feasible, and has low cost;
(2) according to the preparation method of the plaster cloth, warp yarns and weft yarns are made of trilobal CDP fibers with good three-dimensional crimping performance, and the prepared plaster cloth is good in air permeability.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The crimp shrinkage and crimp stability of the invention are obtained by testing the tow in GB6506-2001 synthetic fiber textured yarn crimp performance test method;
the method for testing the shrinkage elongation (reflecting the elasticity and the crimp degree of the deformed filament, the fiber is firstly loaded under light load and then loaded under heavy load, and the ratio of the length difference value under the two loads to the crimp length) and the crimp elastic recovery rate is as follows:
firstly, cutting two fiber samples with the length of about 50cm, putting the two fiber samples into hot water with the temperature of 100 ℃ for treatment for 30min, taking the two fiber samples out, naturally drying the two fiber samples, cutting the sample with the length of about 30cm, fixing one end of the sample, loading a load of 0.0018cN/dtex on the other end of the sample, and continuing for 3 times0s, marking at 20cm, namely obtaining the initial length l of the sample1(ii) a Then, the load of 0.09cN/dtex is loaded for 30s, and the position of the mark point is measured, namely the length l when the sample is loaded with heavy load2(ii) a Finally, removing the heavy load, retracting the sample for 2min without load, then adding the load of 0.0018cN/dtex, continuing for 30s, and measuring the position of the mark point on the scale, namely the recovery length l3(ii) a The percent elongation at Compression (CE) and the elastic recovery from crimp (SR) are calculated as follows:
CE＝(l2-l1)/l1；
SR＝(l2-l3)/(l2-l1)。
example 1
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1dL/g according to an FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.11 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 20 degrees, 75 degrees, 15 degrees, 22 degrees, 3 degrees, 170 degrees, 40 degrees, 90 degrees, 1 degree, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 106 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 270 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.8m/s, the one-roller speed is 1600m/min, the one-roller temperature is 60 ℃, the two-roller speed is 2800m/min, the two-roller temperature is 125 ℃, and the winding speed is 2730 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.6cN/dtex, the elongation at break is 55%, and the total titer is 100 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 8; the temperature of the relaxation heat treatment is 90 ℃ and the time is 30 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 36%, the curling stability is 80%, the contraction elongation rate is 75%, and the curling elastic recovery rate is 80%; the gram weight of the obtained plaster cloth is 50g/m2The flow resistance was 0.11KPa · s/m.
Example 2
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.05dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.11 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 30 degrees, 75 degrees, 65 degrees, 20 degrees, 3 degrees, 170 degrees, 40 degrees, 90 degrees, 1 degrees, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 106 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 272 ℃, the cooling temperature is 20 ℃, the cooling wind speed is 2m/s, the first roller speed is 1623m/min, the first roller temperature is 62 ℃, the two roller speed is 2821m/min, the two roller temperature is 125 ℃, and the winding speed is 2738 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.6cN/dtex, the elongation at break is 54.6%, and the total titer is 128 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 10; the temperature of the relaxation heat treatment is 94 ℃ and the time is 30 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 36%, the curling stability is 81%, the contraction elongation rate is 76%, and the curling elastic recovery rate is 80%; the gram weight of the obtained plaster cloth is 67g/m2The flow resistance was 0.11KPa · s/m.
Example 3
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.01dL/g according to an FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.11 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 30 degrees, 75 degrees, 18 degrees, 22 degrees, 13 degrees, 170 degrees, 56 degrees, 90 degrees, 1 degree, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 106 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 272 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.9m/s, the one-roll speed is 1652m/min, the one-roll temperature is 66 ℃, the two-roll speed is 2838m/min, the two-roll temperature is 125 ℃, and the winding speed is 2743 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.6cN/dtex, the elongation at break is 53.8%, and the total titer is 146 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 8; the temperature of the relaxation heat treatment is 101 ℃, and the time is 29 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the single-filament curling directions are randomly distributed, the curling shrinkage rate is 37 percent, the curling stability is 81 percent, the contraction elongation rate is 76 percent, and the curling elastic recovery rate is 81 percent; the gram weight of the prepared plaster cloth is 58g/m2The flow resistance was 0.11KPa · s/m.
Example 4
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.06dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.13 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 30 degrees, 75 degrees, 15 degrees, 22 degrees, 3 degrees, 170 degrees, 12 degrees, 90 degrees, 1 degree, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 80 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 273 ℃, the cooling temperature is 22 ℃, the cooling air speed is 1.8m/s, the one-roller speed is 1665m/min, the one-roller temperature is 68 ℃, the two-roller speed is 2868m/min, the two-roller temperature is 126 ℃, and the winding speed is 2815 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.7cN/dtex, the elongation at break is 52%, and the total titer is 125 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 10; the temperature of the relaxation heat treatment is 109 ℃, and the time is 28 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 38%, the curling stability is 81%, the contraction elongation rate is 78%, and the curling elastic recovery rate is 82%; the gram weight of the obtained plaster cloth is 59g/m2The flow resistance was 0.1KPa · s/m.
Example 5
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.13dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.12 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 30 degrees, 75 degrees, 15 degrees, 20 degrees, 3 degrees, 170 degrees, 40 degrees, 90 degrees, 1 degrees, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 106 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 275 ℃, the cooling temperature is 23 ℃, the cooling air speed is 1.9m/s, the one-roller speed is 1668m/min, the one-roller temperature is 68 ℃, the two-roller speed is 2886m/min, the two-roller temperature is 127 ℃, and the winding speed is 2851 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.7cN/dtex, the elongation at break is 51.1%, and the total titer is 133 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 8; the temperature of the relaxation heat treatment is 114 ℃, and the time is 27 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 38%, the curling stability is 82%, the contraction elongation is 78%, and the curling elastic recovery rate is 84%; the gram weight of the obtained plaster cloth is 70g/m2The flow resistance was 0.1KPa · s/m.
Example 6
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.15dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.11 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 24, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form certain included angles with the datum line, and the inferior angle included angles are 30 degrees, 75 degrees, 15 degrees, 22 degrees, 3 degrees, 170 degrees, 31 degrees, 90 degrees, 1 degree, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 100 degrees, 106 degrees, 100 degrees, 41 degrees, 80 degrees, 65 degrees, 2 degrees and 50 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 277 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.9m/s, the first roller speed is 1777m/min, the first roller temperature is 68 ℃, the second roller speed is 2939m/min, the second roller temperature is 128 ℃, and the winding speed is 2888 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.8cN/dtex, the elongation at break is 49.9%, and the total titer is 114 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 8; the temperature of the relaxation heat treatment is 118 ℃, and the time is 21 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 42%, the curling stability is 82%, the contraction elongation is 78%, and the curling elastic recovery rate is 85%; the gram weight of the obtained plaster cloth is 60g/m2The flow resistance was 0.09KPa s/m.
Example 7
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.06dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.11 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed at equal intervals, the number of the C-shaped spinneret orifices is 12, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form a certain included angle with the datum line, and the inferior angle included angles are 3 degrees, 170 degrees, 40 degrees, 90 degrees, 1 degree, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees and the like in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 278 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.9m/s, the first roller speed is 1785m/min, the first roller temperature is 70 ℃, the second roller speed is 2943m/min, the second roller temperature is 130 ℃, and the winding speed is 2904 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.8cN/dtex, the elongation at break is 47.3%, and the total titer is 102 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 9; the temperature of the relaxation heat treatment is 120 ℃, and the time is 20 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 42%, the curling stability is 83%, the contraction elongation is 78%, and the curling elastic recovery rate is 85%; the gram weight of the prepared plaster cloth is 58g/m2The flow resistance was 0.08KPa · s/m.
Example 8
A preparation method of plaster cloth comprises the following steps:
(1) preparing crescent elastic fiber:
in the process of preparing fibers from PTT with the intrinsic viscosity of 1.15dL/g according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is 0.14 mm;
the certain conditions are as follows: the spinneret plate is provided with a circle of C-shaped spinneret orifices which are distributed equidistantly, the number of the C-shaped spinneret orifices is 12, the straight line of two points AB on the cross section of any crescent spinneret orifice is taken as a datum line, the straight lines of two points AB on the cross sections of all other crescent spinneret orifices form a certain included angle with the datum line, and the inferior angle included angles are 15 degrees, 22 degrees, 3 degrees, 45 degrees, 30 degrees, 10 degrees, 60 degrees, 2 degrees, 98 degrees and 106 degrees in sequence along the clockwise direction;
the parameters of the FDY process are as follows: the spinning temperature is 278 ℃, the cooling temperature is 25 ℃, the cooling air speed is 2m/s, the one-roller speed is 1800m/min, the one-roller temperature is 70 ℃, the two-roller speed is 3000m/min, the two-roller temperature is 130 ℃, and the winding speed is 2910 m/min;
the prepared crescent elastic fiber consists of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same; the breaking strength of the crescent elastic fiber is 2.8cN/dtex, the elongation at break is 45%, and the total titer is 150 dtex;
(2) preparing ointment cloth:
the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
wherein the mass ratio of the warp yarns to the weft yarns is 10: 10; the temperature of the relaxation heat treatment is 120 ℃, and the time is 20 min;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, the monofilament curling directions are randomly distributed, the curling shrinkage rate is 43 percent, the curling stability is 85 percent, the contraction elongation rate is 80 percent, and the curling elastic recovery rate is 85 percent; the gram weight of the obtained plaster cloth is 70g/m2The flow resistance was 0.08KPa · s/m.
Claims (8)
1. A preparation method of plaster cloth is characterized in that: the crescent elastic fiber is used as the raw material of warp yarn and weft yarn to carry out weaving and relaxation heat treatment to prepare plaster cloth;
the crescent elastic fiber is prepared by the following steps:
in the process of preparing fibers from PTT according to the FDY process, cooling by circular blowing, and controlling the arrangement of spinneret orifices on a spinneret plate to meet certain conditions to prepare FDY filaments, namely crescent elastic fibers;
the spinneret orifice is a crescent spinneret orifice, the cross section of the crescent spinneret orifice is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is more than 0.1 mm;
the certain conditions are as follows: the integral parts of the crescent spinneret orifices on the spinneret plate are distributed in a circle at equal intervals, the straight line where the two points AB on the cross section of any crescent spinneret orifice are located is taken as a datum line, the straight lines where the two points AB on the cross sections of all other crescent spinneret orifices are located form a certain included angle with the datum line, and the included angles are randomly distributed within the range of 0-360 degrees;
the cooling temperature is 20-25 ℃, and the cooling air speed is 1.80-2.00 m/s;
after relaxation heat treatment, the crescent elastic fiber has a three-dimensional curling shape, and the curling directions of the monofilaments are randomly distributed.
2. The method of claim 1, wherein M has a central angle of 180 to 330 °.
3. The preparation method of a plaster cloth according to claim 2, wherein the intrinsic viscosity of the PTT melt is 1.00-1.15 dL/g.
4. The method of claim 3, wherein the FDY process parameters are: the spinning temperature is 270-278 ℃, the speed of one roller is 1600-1800 m/min, the temperature of one roller is 60-70 ℃, the speed of two rollers is 2800-3000 m/min, the temperature of two rollers is 125-130 ℃, and the winding speed is 2730-2910 m/min.
5. The method for preparing plaster cloth according to claim 4, wherein the crescent elastic fiber is composed of a plurality of PTT monofilaments with crescent cross sections, the stress on the cross section of the same PTT monofilament is asymmetric, and the asymmetric stress positions on the cross sections of all the PTT monofilaments are not completely the same.
6. The preparation method of plaster cloth according to claim 5, wherein the mass ratio of warp yarn to weft yarn is 10: 8-10; the temperature of the relaxation heat treatment is 90-120 ℃, and the time is 20-30 min.
7. The preparation method of the plaster cloth according to claim 6, wherein before the relaxation heat treatment, the breaking strength of the crescent elastic fiber is more than or equal to 2.6cN/dtex, the elongation at break is 50.0 +/-5.0%, and the total titer is 100-150 dtex; after relaxation heat treatment, the crescent elastic fiber has a crimp shrinkage of 36-43%, a crimp stability of 80-85%, a shrinkage elongation of 75-80%, and a crimp elastic recovery of 80-85%.
8. The method for preparing a plaster cloth according to any one of claims 1 to 7, wherein the plaster cloth has a gram weight of 50 to 70g/m2The flow resistance is 0.08 to 0.11KPa · s/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410841.9A CN111005128B (en) | 2019-12-31 | 2019-12-31 | Preparation method of plaster cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410841.9A CN111005128B (en) | 2019-12-31 | 2019-12-31 | Preparation method of plaster cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111005128A CN111005128A (en) | 2020-04-14 |
| CN111005128B true CN111005128B (en) | 2021-06-25 |
Family
ID=70119998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911410841.9A Active CN111005128B (en) | 2019-12-31 | 2019-12-31 | Preparation method of plaster cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111005128B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108939A (en) * | 1994-02-20 | 1995-09-27 | 郑红梅 | Baidujing plaster and its preparation method |
| CN2915899Y (en) * | 2006-03-31 | 2007-06-27 | 东华大学 | Air-permeable humid-conductive PTT fiber and nozzle plate used therefor |
| CN202849604U (en) * | 2012-06-19 | 2013-04-03 | 江苏德赛化纤有限公司 | Three-dimensional hollow polyester staple fiber |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002795A (en) * | 1974-03-25 | 1977-01-11 | Rhone-Poulenc-Textile | Crimped yarns and method for making them |
| JPH08120575A (en) * | 1994-10-25 | 1996-05-14 | Unitika Ltd | Production of light and clear fabric |
| CN1334079A (en) * | 2000-07-17 | 2002-02-06 | 周松亮 | Far infrared rehabilitation medicine patch for dispelling wind-damp, promoting blood circulation, removing obstruction in channels, diminishing inflammation and easing pain and production method thereof |
| KR100660933B1 (en) * | 2004-11-25 | 2006-12-26 | 주식회사 새 한 | The manufacture method of special shaped cross-section fiber |
| CN201162072Y (en) * | 2008-01-11 | 2008-12-10 | 东华大学 | 8 shaped hollow fiber and spinning jet used thereof |
| CN101481832A (en) * | 2009-01-21 | 2009-07-15 | 张家港保税区长江塑化有限公司 | Composite high elastic memory fibre |
| CN202730341U (en) * | 2012-06-09 | 2013-02-13 | 江苏德赛化纤有限公司 | C-shaped spinneret plate used for melt spinning |
| CN103120609A (en) * | 2012-11-29 | 2013-05-29 | 昆山杰明纺织品有限公司 | Cloth for ointment |
| CN103866409A (en) * | 2012-12-12 | 2014-06-18 | 蒋春花 | Spinneret plate for filament wool-like production of spinning pack |
| CN105839206A (en) * | 2015-01-16 | 2016-08-10 | 上海水星家用纺织品股份有限公司 | Manufacturing process of profiled, hollow, three-dimensional crimp and acrylic fibers and application thereof and dyeing and finishing process of fabric |
| TWI716751B (en) * | 2018-02-02 | 2021-01-21 | 國立臺灣海洋大學 | Hair growth stimulating dressing |
| CN209636415U (en) * | 2018-12-29 | 2019-11-15 | 广东前进牛仔布有限公司 | A kind of denim fabric |
-
2019
- 2019-12-31 CN CN201911410841.9A patent/CN111005128B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108939A (en) * | 1994-02-20 | 1995-09-27 | 郑红梅 | Baidujing plaster and its preparation method |
| CN2915899Y (en) * | 2006-03-31 | 2007-06-27 | 东华大学 | Air-permeable humid-conductive PTT fiber and nozzle plate used therefor |
| CN202849604U (en) * | 2012-06-19 | 2013-04-03 | 江苏德赛化纤有限公司 | Three-dimensional hollow polyester staple fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111005128A (en) | 2020-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101418472B (en) | Spider silk protein/polylactic acid composite nano fibre yarn and preparation method thereof | |
| CN104005169B (en) | A kind of polyester-nylon composite superfine fibre high density non-dust cloth and preparation method thereof | |
| CN111005128B (en) | Preparation method of plaster cloth | |
| WO2020232876A1 (en) | Elastic composite fiber and fabrication method therefor | |
| CN111041650B (en) | Preparation method of plaster lining cloth | |
| CN111041571B (en) | Regenerated polyester filament and preparation method thereof | |
| CN110983528B (en) | Floating-depth linen-like polyester fiber and preparation method thereof | |
| CN111118635B (en) | Fiber for medical antibacterial fabric and preparation method thereof | |
| CN110983549B (en) | Preparation method of breathable easy-to-tear elastic bandage cloth | |
| CN111118700B (en) | Preparation method of comfortable bandage | |
| CN111041651B (en) | Preparation method of bandage cloth | |
| JP2019516878A (en) | Side-type composite fiber | |
| CN111041573B (en) | Seat fabric and preparation method thereof | |
| CN111118632B (en) | Rabbit hair-imitated PBT fiber and preparation method thereof | |
| GB927586A (en) | Process for making composite polyester yarns | |
| CN111058112A (en) | Preparation method of low-friction bandage | |
| CN111041576B (en) | Acetic acid-like filament and preparation method thereof | |
| CN110965188B (en) | Preparation method of silk-like fabric | |
| CN105297174B (en) | A kind of soybean fiber and production technology | |
| CN111058115B (en) | Preparation method of crescent self-crimping elastic fiber | |
| CN110983548B (en) | Preparation method of medical easily-torn cloth | |
| CN111334917B (en) | Preparation method of comfortable seersucker | |
| CN110965187B (en) | Preparation method of corduroy fabric | |
| CN110983598B (en) | Preparation method of vamp fabric | |
| CN204211866U (en) | Directly spin ring blowing 20D series terylene fully drawn yarn and spinning spinnerets used thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |