CN111021127A - Water-dispersible polyester fiber mixed material and production method thereof - Google Patents
Water-dispersible polyester fiber mixed material and production method thereof Download PDFInfo
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- CN111021127A CN111021127A CN201911323979.5A CN201911323979A CN111021127A CN 111021127 A CN111021127 A CN 111021127A CN 201911323979 A CN201911323979 A CN 201911323979A CN 111021127 A CN111021127 A CN 111021127A
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- fibers
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- polyester fiber
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
Abstract
The invention discloses a water-dispersible polyester fiber mixed material, which is prepared by processing wood pulp fibers and polyester fibers serving as raw materials by adopting a papermaking and non-woven composite process. The preparation method comprises the steps of soaking and dispersing wood pulp fibers, fibrillating polyester fibers, mixing the two fibers in a pulp mixing tank to obtain a homogeneous mixed solution, further diluting and uniformly mixing the homogeneous mixed solution, feeding the homogeneous mixed solution into a papermaking system for wet web formation, pre-needling the wet paper by non-woven spunlace, transferring the wet paper to a spunlace reinforcement system, and performing composite drying and molding winding. The method takes resource optimization utilization as a principle, realizes water dispersion after the terylene wood pulp composite material is used through scientific planning and optimization, separates terylene and wood pulp fibers by utilizing the difference of the fibers, and further recycles the terylene fibers, thereby reducing the influence of the used raw materials, the production process, the use and the waste of products on the environment and conforming to the thought of comprehensive utilization and sustainable development of resources.
Description
The invention relates to a water-dispersible polyester fiber mixed material, in particular to a water-dispersible polyester fiber mixed material and a production method thereof.
Background
The fiber mixed material has wide application, the terylene is the most used fiber mixed material, when the prior terylene fiber mixed material is manufactured, the fiber is firstly carded into a web, and then the web is combined by a water needling process, wherein the length of the polyester fiber is required to be 38mm or more, the polyester fiber mixed material pollutes the environment with novel garbage, the traditional fiber mixed material is not easy to be treated or recycled due to large difference of fiber properties when being discarded, and can only be directly burnt or buried, therefore, harmful smoke and solid wastes or polluted soil can be generated, the environment can be greatly harmed, along with the research and development of global green environment-friendly materials, the non-woven products are widely applied to sanitary materials by unique three-dimensional structures and excellent raw material adaptability, and the environment-friendly, energy-saving and degradable materials are more and more widely concerned.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the separation problem of the post-use waste treatment of the polyester fiber mixed material, the existing polyester composite material uses fibers with the diameter of 38mm or more, the fibers are difficult to separate after use and bring difficulty to the post-treatment, the invention provides the water-dispersible polyester fiber mixed material and the production method thereof, a uniform fiber web can be obtained by adopting a papermaking pulping web-forming technology, a non-woven spunlace technology utilizes a high-pressure water needle to flexibly control the fiber movement to realize the reinforcement of the fiber web, the two technologies are organically combined, the water-dispersible material with excellent performance can be manufactured, the water-dispersible polyester fiber mixed material is firstly subjected to the water-dispersing treatment when being discarded after use, and the separated polyester fiber is recycled, so that the influence of the used raw materials, the production process, the product use and the waste on the environment is reduced.
The technical scheme is as follows: the formula of the water-dispersible polyester fiber mixed material consists of wood pulp fibers and polyester fibers, and the raw material composition comprises the following components in parts by weight: the wood pulp fiber accounts for 60-92%, the polyester fiber accounts for 8-40%, and the surface density of the water-dispersible polyester fiber mixed materialIs 35 to 80g/m2。
Furthermore, the length of the polyester fiber is 6-12 mm, the fineness is 0.8-2 d, the dry and wet strength of the polyester fiber is greater than 4cN/dtex, and the strength of the polyester fiber in a wet state cannot be obviously reduced.
A production method of a water-dispersible polyester fiber mixed material comprises the following steps:
(1) uniformly stirring wood pulp fibers dispersed by soaking, and simultaneously pretreating polyester fibers without adding any auxiliary reagent, namely conveying the polyester fibers to a mechanical cutting and grinding barrel, wherein the rotation speed of a cutter is 600-800 r/min, the rotation radius is 1/3 barrel diameter, the length of an inclined guide plate on the inner wall of the barrel is 50-60 cm, the inclination angle is 55-65 degrees, the protrusion height is 4-5 cm, the cutter and the inclined guide plate are matched to realize fibrillation pretreatment of the polyester fibers, then mixing the two fibers into a pulp mixing tank to be mixed into homogeneous mixed liquid, the concentration of the mixed liquid is 1-3%, and the mixing time is 10-20 min;
(2) further diluting and uniformly mixing the homogeneous mixed solution in the step (1) to the concentration of 0.05-0.1%, and feeding the homogeneous mixed solution into a papermaking system for wet web forming to form wet paper sheets;
(3) the wet paper is turned over by means of non-woven spunlace pre-needling, enters a spunlace reinforcing system, and is subjected to intensive injection by using high-pressure water to the fiber web, so that fibers in the fiber web are displaced and entangled, flexible reinforcement is realized, the spunlace pressure is 15-80MPa, and the number of spunlace channels is 3-5;
(4) performing negative pressure suction and mangle rolling on the wet paper processed in the step (3), wherein the suction pressure of a negative pressure roller is 0.04-0.05 MPa, and the hydraulic pressure of the mangle rolling is 0.3-0.4 MPa; after the excessive moisture is removed preliminarily, the fiber web is subjected to staggered combined drying through a drying cylinder, hot air and infrared rays, the drying cylinder is used for drying to enable the fiber web to bypass the surface of the hot drying cylinder, the temperature of the drying cylinder is 80-130 ℃, the drying time of the drying cylinder is 10-20 s, the hot air penetrates through the fiber web by utilizing the hot air for drying, the temperature of a hot air oven is 70-100 ℃, the hot air drying time is 10-20 s, and the surface density obtained after drying is 35-80 g/m2The water dispersible polyester fiber mixed material is formed and rolled by the prepared flushable composite process material.
The water-dispersible polyester fiber mixed material has the beneficial effects that the principle of resource optimization utilization is adopted, and the water-dispersible polyester fiber mixed material is disclosed, and compared with the traditional polyester fiber mixed material, the water-dispersible polyester fiber mixed material has the advantages that the length of polyester fibers is 6-12 mm instead of 38mm or more; the method for forming the web by the polyester fibers is wet-forming, not carding forming, the prepared ultra-short polyester fiber and wood pulp composite material is firstly subjected to water dispersion treatment when being discarded after being used, the separated polyester fiber is recycled, and the wood pulp fiber directly enters a waste water system for biodegradation and then returns to nature, so that the influence of the used raw materials, the production process, the product use and the waste on the environment is reduced, and the method conforms to the idea of comprehensive utilization of resources and sustainable development.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
1. polyester fiber; 2. wood pulp fibers.
Detailed Description
The water-dispersible polyester fiber 1 mixed material shown in figure 1 is prepared from wood pulp fibers 2 and polyester fibers 1, and the raw material composition comprises the following components in parts by weight: the wood pulp fiber 2 accounts for 60-92%, the polyester fiber 1 accounts for 8-40%, and the mixed material of the water dispersible polyester fiber 1 obtained by adopting the papermaking and non-woven composite process has the surface density of 35-80 g/m2。
The length of the polyester fiber 1 is 6-12 mm, the fineness is 0.8-2 d, the dry and wet strength of the fiber is greater than 4cN/dtex, and the strength of the fiber in a wet state cannot be obviously reduced.
Mixing the two fibers in a size mixing tank to obtain a homogeneous mixed solution, wet-forming by using a papermaking technology, flexibly reinforcing by using a non-woven spunlace technology, and drying in a combined manner to obtain the composite material with the surface density of 35-80 g/m2The papermaking technology is used for pulping and wet-laid, so that the low-gram-weight uniformity of the water-dispersible material is improved by 2-5%; the non-woven spunlace technology is used for flexible reinforcement of products, the two technologies are organically combined, raw water treatment water is used as spunlace water, spunlace backwater and drying condensate water directly enter a pulping system to realize graded full recycling of water resources, and the prepared water-dispersible polyester fiber 1 mixed material is used and then subjected to full recyclingAnd (3) performing water dispersion treatment, and recycling the separated polyester fiber 1, so that the influence of the used raw materials, the production process, the product use and waste on the environment is reduced, and the concept of comprehensive utilization of resources and sustainable development is met.
A production method of a water-dispersible polyester fiber 1 mixed material comprises the following steps:
(1) uniformly stirring wood pulp fibers 2 which are soaked in water and dispersed, and simultaneously pretreating polyester fibers 1 without adding any auxiliary reagent, namely conveying the polyester fibers 1 to a mechanical cutting and grinding barrel, wherein the rotation speed of a cutter is 600-800 r/min, the rotation radius is 1/3 barrel diameters, the length of an inclined guide plate on the inner wall of the barrel is 50-60 cm, the inclination angle is 55-65 degrees, the protrusion height is 4-5 cm, the cutter and the inclined guide plate are matched to act, so that the fibrillation pretreatment of the polyester fibers 1 is realized, then mixing the two fibers into a pulp mixing tank to be a homogeneous mixed liquid, the concentration of the mixed liquid is 1-3%, and the mixing time is 10-20 min;
(2) further diluting and uniformly mixing the homogeneous mixed solution in the step (1) to the concentration of 0.05-0.1%, and feeding the homogeneous mixed solution into a papermaking system for wet web forming to form wet paper sheets;
(3) turning over the wet paper by means of non-woven spunlace pre-needling, feeding the wet paper into a spunlace reinforcement system, and intensively spraying the fiber web by using high-pressure water to enable fibers in the fiber web to be displaced and entangled so as to realize flexible reinforcement, wherein the spunlace pressure is 15-80MPa, and the number of spunlace channels is 3-5;
(4) performing negative pressure suction and mangle rolling on the wet paper processed in the step (3), wherein the suction pressure of a negative pressure roller is 0.04-0.05 MPa, and the hydraulic pressure of the mangle rolling is 0.3-0.4 MPa; after the excessive moisture is removed preliminarily, the fiber web is subjected to staggered combined drying through a drying cylinder, hot air and infrared rays, the drying cylinder is used for drying to enable the fiber web to bypass the surface of the hot drying cylinder, the temperature of the drying cylinder is 80-130 ℃, the drying time of the drying cylinder is 10-20 s, the hot air penetrates through the fiber web by utilizing the hot air for drying, the temperature of a hot air oven is 70-100 ℃, the hot air drying time is 10-20 s, and the surface density obtained after drying is 35-80 g/m2The water dispersible polyester fiber 1 mixed material is formed and rolled by the prepared flushable composite process material.
According to the invention, the principle of resource optimization utilization is taken, wood pulp fibers and polyester fibers are taken as raw materials, and the water-dispersible polyester fiber mixed material is prepared by adopting a papermaking and non-weaving composite process, compared with the traditional polyester fiber mixed material, the length of the polyester fibers used in the invention is 6-12 mm, but not 38mm or more; the method for forming the web by the polyester fibers is wet-forming, not carding forming, the prepared ultra-short polyester fiber and wood pulp composite material is firstly subjected to water dispersion treatment when being discarded after being used, the separated polyester fiber is recycled, and the wood pulp fiber directly enters a waste water system for biodegradation and then returns to nature, so that the influence of the used raw materials, the production process, the product use and the waste on the environment is reduced, and the method conforms to the idea of comprehensive utilization of resources and sustainable development.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A water-dispersible polyester fiber mixed material is characterized in that: the formula of the water-dispersible polyester fiber mixed material consists of wood pulp fibers and polyester fibers, and the raw material composition comprises the following components in parts by weight: the wood pulp fiber accounts for 60-92%, the polyester fiber accounts for 8-40%, and the surface density of the water-dispersible polyester fiber mixed material is 35-80 g/m2。
2. The water-dispersible polyester fiber mixed material as claimed in claim 1, wherein: the length of the used polyester fiber is 6-12 mm, the fineness is 0.8-2 d, and the dry and wet strength of the polyester fiber is more than 4 cN/dtex.
3. The water-dispersible polyester fiber mixed material as claimed in claim 1, wherein: the wood pulp fibers are softwood pulp.
4. The method for producing a water-dispersible polyester fiber mixed material according to any one of claims 1 to 3, wherein: the method comprises the following steps:
(1) uniformly stirring wood pulp fibers dispersed by soaking, and simultaneously pretreating polyester fibers without adding any auxiliary reagent, namely conveying the polyester fibers to a mechanical cutting and grinding barrel, wherein the rotation speed of a cutter is 600-800 r/min, the rotation radius is 1/3 barrel diameter, the length of an inclined guide plate on the inner wall of the barrel is 50-60 cm, the inclination angle is 55-65 degrees, the protrusion height is 4-5 cm, the cutter and the inclined guide plate are matched to realize fibrillation pretreatment of the polyester fibers, then mixing the two fibers into a pulp mixing tank to be mixed into homogeneous mixed liquid, the concentration of the mixed liquid is 1-3%, and the mixing time is 10-20 min;
(2) further diluting and uniformly mixing the homogeneous mixed solution in the step (1) to the concentration of 0.05-0.1%, and feeding the homogeneous mixed solution into a papermaking system for wet web forming to form wet paper sheets;
(3) the wet paper is turned over by means of non-woven spunlace pre-needling, enters a spunlace reinforcing system, and is subjected to intensive injection by using high-pressure water to the fiber web, so that fibers in the fiber web are displaced and entangled, flexible reinforcement is realized, the spunlace pressure is 15-80MPa, and the number of spunlace channels is 3-5;
(4) performing negative pressure suction and mangle rolling on the wet paper processed in the step (3), wherein the suction pressure of a negative pressure roller is 0.04-0.05 MPa, and the hydraulic pressure of the mangle rolling is 0.3-0.4 MPa; after the excessive moisture is removed preliminarily, the fiber web is subjected to staggered combined drying through a drying cylinder, hot air and infrared rays, the drying cylinder is used for drying to enable the fiber web to bypass the surface of the hot drying cylinder, the temperature of the drying cylinder is 80-130 ℃, the drying time of the drying cylinder is 10-20 s, the hot air penetrates through the fiber web by utilizing the hot air for drying, the temperature of a hot air oven is 70-100 ℃, the hot air drying time is 10-20 s, and the surface density obtained after drying is 35-80 g/m2The water dispersible polyester fiber mixed material is formed and rolled by the prepared flushable composite process material.
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| CN201911323979.5A CN111021127A (en) | 2019-12-20 | 2019-12-20 | Water-dispersible polyester fiber mixed material and production method thereof |
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| CN201911323979.5A CN111021127A (en) | 2019-12-20 | 2019-12-20 | Water-dispersible polyester fiber mixed material and production method thereof |
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Citations (8)
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|---|---|---|---|---|
| EP0411752A1 (en) * | 1989-06-30 | 1991-02-06 | The Dexter Corporation | Method for hydroentangling non-woven fibrous sheets |
| CN103590193A (en) * | 2013-11-11 | 2014-02-19 | 杭州创蓝无纺布有限公司 | Production device and technology for wet method spunlace nonwoven cloth |
| CN106381612A (en) * | 2016-08-30 | 2017-02-08 | 绍兴柯桥天圣无纺有限公司 | High-moisture absorbing special terylene wet process hydroentangle non-woven fabric and preparation method for same |
| CN106906692A (en) * | 2017-02-27 | 2017-06-30 | 南通大学 | A kind of wet-laying liquid filtration material and preparation method thereof |
| CN108202515A (en) * | 2016-12-16 | 2018-06-26 | 杭州诺邦无纺股份有限公司 | Wet method spun lacing composite material and production method |
| CN110143022A (en) * | 2019-05-28 | 2019-08-20 | 南通大学 | A kind of high moisturizing elastic force base wet process spunlaced face mask base fabric and its production technology |
| CN110433322A (en) * | 2019-06-19 | 2019-11-12 | 南通大学 | A kind of the wet process spunlace non-woven spontaneous heating dressing and production technology of medicine film of generating heat |
| CN110524984A (en) * | 2019-08-02 | 2019-12-03 | 南通大学 | A kind of nonwoven industrial wiper that high water absorption high oil absorption is degradable and its production technology |
-
2019
- 2019-12-20 CN CN201911323979.5A patent/CN111021127A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| EP0411752A1 (en) * | 1989-06-30 | 1991-02-06 | The Dexter Corporation | Method for hydroentangling non-woven fibrous sheets |
| CN103590193A (en) * | 2013-11-11 | 2014-02-19 | 杭州创蓝无纺布有限公司 | Production device and technology for wet method spunlace nonwoven cloth |
| CN106381612A (en) * | 2016-08-30 | 2017-02-08 | 绍兴柯桥天圣无纺有限公司 | High-moisture absorbing special terylene wet process hydroentangle non-woven fabric and preparation method for same |
| CN108202515A (en) * | 2016-12-16 | 2018-06-26 | 杭州诺邦无纺股份有限公司 | Wet method spun lacing composite material and production method |
| CN106906692A (en) * | 2017-02-27 | 2017-06-30 | 南通大学 | A kind of wet-laying liquid filtration material and preparation method thereof |
| CN110143022A (en) * | 2019-05-28 | 2019-08-20 | 南通大学 | A kind of high moisturizing elastic force base wet process spunlaced face mask base fabric and its production technology |
| CN110433322A (en) * | 2019-06-19 | 2019-11-12 | 南通大学 | A kind of the wet process spunlace non-woven spontaneous heating dressing and production technology of medicine film of generating heat |
| CN110524984A (en) * | 2019-08-02 | 2019-12-03 | 南通大学 | A kind of nonwoven industrial wiper that high water absorption high oil absorption is degradable and its production technology |
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