CN117737998A - Anti-aging polyester filament yarn base cloth - Google Patents
Anti-aging polyester filament yarn base cloth Download PDFInfo
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- CN117737998A CN117737998A CN202311626052.5A CN202311626052A CN117737998A CN 117737998 A CN117737998 A CN 117737998A CN 202311626052 A CN202311626052 A CN 202311626052A CN 117737998 A CN117737998 A CN 117737998A
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Abstract
The invention belongs to the technical field of textile, and discloses an anti-aging polyester filament yarn base fabric. The polyester filament base fabric is prepared by sequentially carrying out crystallization drying, melt extrusion, melt filtration, metering spinning, cooling drafting, wire separation and lapping, needling reinforcement, unit mesh heat setting, hot rolling, gum dipping, pre-drying and drying on fiber-grade semi-dull polyester chips; the compound gum used for gum dipping comprises the following components: water, corn starch, a water-soluble polymer ultraviolet absorber and a grafting initiator. The invention solves the problems of short service life and insufficient ageing resistance after being influenced by light when the traditional non-woven fabric is used as a packaging material by adding the water-soluble polymer ultraviolet absorbent and the grafting initiator in the gum dipping stage.
Description
Technical Field
The invention belongs to the technical field of textile, and particularly relates to an anti-aging polyester filament yarn base fabric.
Background
The problem of damage to organic materials by prolonged light exposure is well known. The physical result of photodegradation is fiber surface cracking, reduced strength and stiffness. Polyesters, the largest class of textile fibers, also age from photo-corrosion when exposed to ultraviolet light for extended periods of time, mainly because polymeric materials contain weak points that readily absorb ultraviolet radiation and degrade. Polyester macromolecules are susceptible to ester bond cleavage by exposure to external environments such as ultraviolet light, heat, oxygen and water, which in turn leads to degradation of the polyester macromolecules. The traditional polyester filament non-woven fabric can degrade organic matters in the use of the packaging material, so that the problems of shortening the service life of the material, insufficient ageing resistance and the like occur, and the use value of the fiber product is reduced. However, in the production, storage, transportation and use processes, contact illumination is unavoidable, and the service life of the product is shortened under long-time illumination, so that the market competitiveness is reduced. Polyester fabrics, which are the largest synthetic fibers, are difficult to modify due to stable molecular structure and poor hydrophilicity. Therefore, it may also undergo serious molecular chain destruction and mechanical property loss after being subjected to ultraviolet irradiation.
Therefore, it is currently needed to propose an anti-aging polyester filament yarn base fabric.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an anti-aging polyester filament yarn base fabric. The invention solves the problems of short service life and insufficient ageing resistance after being influenced by light when the traditional non-woven fabric is used as a packaging material by adding the water-soluble polymer ultraviolet absorbent and the grafting initiator in the gum dipping stage.
In order to achieve the above purpose, the invention provides an anti-aging polyester filament yarn base fabric, which is prepared by sequentially carrying out crystallization drying, melt extrusion, melt filtration, metering spinning, cooling drafting, wire separation and lapping, needling reinforcement, unit mesh heat setting, hot rolling, gum dipping, pre-baking and drying on fiber-grade semi-dull polyester chips;
the compound gum used for gum dipping comprises the following components: water, corn starch, a water-soluble polymer ultraviolet absorber and a grafting initiator.
According to the present invention, it is preferable that the water content is 81 to 88wt%, the corn starch content is 8 to 12wt%, the water-soluble high molecular ultraviolet absorber content is 4 to 6wt% and the grafting initiator content is 0.1 to 0.3wt%, based on the total weight of the composite adhesive.
According to the present invention, preferably, the water-soluble high molecular ultraviolet absorber is at least one of a copolymer of 2-hydroxy-4-acrylate-based benzophenone and acrylamide, a copolymer of 2-hydroxy-4-acrylate-based benzophenone and N, N-dimethylaminopropyl acrylamide, and a graft copolymer of hydroxyethyl cellulose and 3,4, 5-trimethoxybenzoyl chloride.
According to the present invention, preferably, the grafting initiator is at least one of potassium persulfate, benzoyl peroxide, and azodiisobutyronitrile.
According to the present invention, preferably, the preparation method of the composite glue includes: and (3) mixing and stirring the water, the corn starch, the water-soluble polymer ultraviolet absorbent and the grafting initiator uniformly, heating to 65-75 ℃ and preserving heat for storage to obtain the composite adhesive.
According to the present invention, preferably, the fiber-grade semi-matt polyester chip is a fiber-grade semi-matt PET polyester chip.
According to the invention, preferably, the crystallization temperature in the crystallization drying is 175-185 ℃, the crystallization time is 10-20min, and the crystallization equipment comprises a boiling semi-closed crystallization bed; the drying temperature in the crystallization drying is 165-175 ℃, the drying time is 5-7h, and the drying equipment comprises a drying tower.
According to the present invention, preferably, the needling reinforcement includes pre-needling reinforcement and main needling reinforcement;
the needling density of the needling reinforcement is 23-36 thorns/cm 2 The needling depth is 6-10mm.
According to the invention, the temperature at which the cell web is heat set is preferably 150-180 ℃.
According to the invention, the hot-rolled rolls preferably have a temperature of 180-200℃and a pressure of 50-60bar. The thickness of the anti-aging polyester filament base fabric product is controlled through hot rolling, and the uniformity of the thickness of the product is ensured through the handle control of the temperature, the pressure and the spacing of a hot rolling mill.
According to the invention, preferably, the drying mode is rotary screen penetrating drying, and the drying temperature is 190-230 ℃.
The technical scheme of the invention has the following beneficial effects:
1. the invention solves the problems of short service life and insufficient ageing resistance after being influenced by light when the traditional non-woven fabric is used as a packaging material by adding the water-soluble polymer ultraviolet absorbent and the grafting initiator in the gum dipping stage.
2. The invention adjusts key technological parameters based on the one-step polyester spun-bonded filament production line, can continuously produce, and has simple technological process and high production speed.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic preparation flow of an anti-aging polyester filament yarn base fabric provided in embodiment 1 of the present invention.
Fig. 2 shows a schematic diagram of a preparation flow of a composite adhesive used for impregnation in a preparation flow of an anti-aging polyester filament yarn base fabric provided in embodiment 1 of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
The embodiment provides an ageing resistance polyester filament child base cloth, polyester filament child base cloth is by the semi-dull PET polyester chip of fibre level crystallization drying, melt extrusion, melt filtration, measurement spinning, cooling draft, branch silk lapping, acupuncture reinforcement, unit net heat setting, hot rolling, gum dipping, prebaking and stoving in proper order to prepare, wherein:
and (5) crystallization and drying: adding a fiber-grade semi-extinction PET polyester slice into a wet storage bin, removing moisture in the slice through crystallization and drying, wherein the crystallization temperature is 180+/-5 ℃, the crystallization time is 15 minutes, equipment for crystallization comprises a boiling semi-closed crystallization bed, the drying temperature is 170+/-5 ℃, the drying time is 6 hours, and the equipment for drying comprises a drying tower to obtain the fiber-grade semi-extinction PET polyester slice subjected to crystallization and drying;
melt extrusion, melt filtration: the method comprises the steps of (1) feeding crystallized and dried fiber-grade semi-dull PET polyester chips into a screw extruder, extruding and melting the chips into a melt state by the screw extruder, and filtering the melt state by a melt filter to obtain relatively uniform melt;
metering spinning: metering the melt through a metering pump and spinning the melt through a spinning component;
and (5) needling and reinforcing: comprises pre-needling reinforcement and main needling reinforcement;
the needling density of the pre-needling reinforcement is 26 needling/cm 2 The needling depth of the pre-needling reinforcement is 9mm;
the needling density of the main needling reinforcement is 31 needling/cm 2 The needling depth of the main needling reinforcement is 8mm;
and (5) heat setting of the unit net: the temperature was 150 ℃.
And (3) hot rolling: the press roll temperature was 180℃and the pressure 60bar.
Dipping: the compound gum used for gum dipping comprises the following components: 2000kg of water, 200kg of corn starch, 100kg of a copolymer of 2-hydroxy-4-acrylate-based benzophenone and acrylamide and 4kg of potassium persulfate. The preparation method of the composite adhesive, as shown in fig. 2, comprises the following steps: and mixing and stirring the water, corn starch, the copolymer of 2-hydroxy-4-acrylate benzophenone and acrylamide and potassium persulfate uniformly, and heating to 70 ℃ for heat preservation and storage to obtain the composite adhesive.
The drying mode is rotary screen penetrating type drying, the drying temperature is 225 ℃ (drying temperature is determined according to drying time).
Comparative example 1
This comparative example provides a polyester filament yarn base fabric, which differs from example 1 only in that: the gum used for gum dipping contains only the following components: 2000kg of water and 200kg of corn starch.
The final properties of the polyester filament base fabrics of the above examples and comparative examples are shown in table 1.
TABLE 1
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. The anti-aging polyester filament base fabric is characterized by being prepared from fiber-grade semi-dull polyester chips through the steps of crystallization drying, melt extrusion, melt filtration, metering spinning, cooling drafting, wire-splitting lapping, needling strengthening, unit mesh heat setting, hot rolling, gum dipping, pre-drying and drying in sequence;
the compound gum used for gum dipping comprises the following components: water, corn starch, a water-soluble polymer ultraviolet absorber and a grafting initiator.
2. The anti-aging polyester filament yarn base fabric according to claim 1, wherein the water content is 81 to 88wt%, the corn starch content is 8 to 12wt%, the water-soluble high molecular uv absorber content is 4 to 6wt% and the grafting initiator content is 0.1 to 0.3wt%, based on the total weight of the composite glue.
3. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein,
the water-soluble high molecular ultraviolet absorbent is at least one of a copolymer of 2-hydroxy-4-acrylate benzophenone and acrylamide, a copolymer of 2-hydroxy-4-acrylate benzophenone and N, N-dimethylaminopropyl acrylamide and a graft copolymer of hydroxyethyl cellulose and 3,4, 5-trimethoxybenzoyl chloride;
the grafting initiator is at least one of potassium persulfate, benzoyl peroxide and azodiisobutyronitrile.
4. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein the preparation method of the composite glue comprises the following steps: and (3) mixing and stirring the water, the corn starch, the water-soluble polymer ultraviolet absorbent and the grafting initiator uniformly, heating to 65-75 ℃ and preserving heat for storage to obtain the composite adhesive.
5. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein said fiber grade semi-matted polyester chips are fiber grade semi-matted PET polyester chips.
6. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein,
the crystallization temperature in the crystallization drying is 175-185 ℃, the crystallization time is 10-20min, and the crystallization equipment comprises a boiling semi-closed crystallization bed;
the drying temperature in the crystallization drying is 165-175 ℃, the drying time is 5-7h, and the drying equipment comprises a drying tower.
7. The anti-aging polyester filament carcass base cloth according to claim 1 or 2, wherein the needled reinforcement comprises pre-needled reinforcement and main needled reinforcement;
the needling density of the needling reinforcement is 23-36 thorns/cm 2 The needling depth is 6-10mm.
8. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein the temperature at which the cell web is heat set is 150-180 ℃.
9. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein the hot rolled press roll temperature is 180-200 ℃ and pressure is 50-60bar.
10. The anti-aging polyester filament yarn base fabric according to claim 1 or 2, wherein the drying mode is cylinder mould penetrating drying, and the drying temperature is 190-230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626052.5A CN117737998A (en) | 2023-11-30 | 2023-11-30 | Anti-aging polyester filament yarn base cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626052.5A CN117737998A (en) | 2023-11-30 | 2023-11-30 | Anti-aging polyester filament yarn base cloth |
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| Publication Number | Publication Date |
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| CN117737998A true CN117737998A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311626052.5A Pending CN117737998A (en) | 2023-11-30 | 2023-11-30 | Anti-aging polyester filament yarn base cloth |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100254921A1 (en) * | 2006-06-16 | 2010-10-07 | Shiseido Company, Ltd. | Benzylidene Malonamide And Salt Thereof, Ultraviolet Ray Absorbent, And Agent For External Application To The Skin |
| CN105342902A (en) * | 2015-10-31 | 2016-02-24 | 杨洋 | Biological ultraviolet-proof and sunscreen composition and preparation method thereof |
| CN105908499A (en) * | 2016-04-26 | 2016-08-31 | 江南大学 | Anti-aging modifying method for polyester fabric |
| US20170158611A1 (en) * | 2015-12-02 | 2017-06-08 | Novartis Ag | Water-soluble uv-absorbing compounds and uses thereof |
| CN115182095A (en) * | 2022-06-07 | 2022-10-14 | 常德天鼎丰非织造布有限公司 | Anti-fouling polyester filament felt base fabric and preparation method thereof |
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2023
- 2023-11-30 CN CN202311626052.5A patent/CN117737998A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100254921A1 (en) * | 2006-06-16 | 2010-10-07 | Shiseido Company, Ltd. | Benzylidene Malonamide And Salt Thereof, Ultraviolet Ray Absorbent, And Agent For External Application To The Skin |
| CN105342902A (en) * | 2015-10-31 | 2016-02-24 | 杨洋 | Biological ultraviolet-proof and sunscreen composition and preparation method thereof |
| US20170158611A1 (en) * | 2015-12-02 | 2017-06-08 | Novartis Ag | Water-soluble uv-absorbing compounds and uses thereof |
| CN105908499A (en) * | 2016-04-26 | 2016-08-31 | 江南大学 | Anti-aging modifying method for polyester fabric |
| CN115182095A (en) * | 2022-06-07 | 2022-10-14 | 常德天鼎丰非织造布有限公司 | Anti-fouling polyester filament felt base fabric and preparation method thereof |
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