阅读说明：本技术 一种高强高模聚乙烯无纺布的制备方法 (A kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics ) 是由 秦法伟 于 2018-05-24 设计创作，主要内容包括：本发明涉及一种高强高模聚乙烯无纺布的制备方法,包括如下步骤：(1)、备料；(2)、铺叠；(3)、一次高压水刺加固；(4)、拉伸；(5)、二次高压水刺加固；(6)、拉伸；(7)、三次高压水刺加固；(8)、烘干；(9)、收卷。本发明一种高强高模聚乙烯无纺布的制备工艺,在层层铺叠的超高分子量聚乙烯薄膜上,经一次水刺,二次水刺加固、拉伸、三次水刺后,形成水刺无纺布,为一次成型制造,使水刺无纺布的整体力学性能增强,不仅具有更高的撕裂强度、拉伸断裂强度、顶破强度,而且具有质地好、良好的透水、透气性能,应用领域广泛。(The present invention relates to a kind of preparation methods of high-strength high-modulus polyethylene non-woven fabrics, include the following steps: (1), stock；(2), laying；(3), a high-pressure water-jet is reinforced；(4), it stretches；(5), secondary high-pressure spun lacing is reinforced；(6), it stretches；(7), high-pressure water-jet is reinforced three times；(8), it dries；(9), it winds.A kind of preparation process of high-strength high-modulus polyethylene non-woven fabrics of the present invention, on the ultra-high molecular weight polyethylene film of laying layer by layer, through a spun lacing, secondary spun lacing reinforces, stretches, three times after spun lacing, forms spunlace non-woven cloth, manufactures for one-pass molding, making the overall mechanical properties of spunlace non-woven cloth enhances, not only there is higher tearing strength, tensile break strength, bursting strength, but also there is of good quality, good permeable, permeability, application field is extensive.)

1. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics, which comprises the steps of:

(1), it stocks up: preparing ultra high molecular weight polyethylene films；

(2), laying: ultra high molecular weight polyethylene films are stacked as required；

(3), a high-pressure water-jet is reinforced: by the ultra high molecular weight polyethylene films layer of the fine water flow jet of high pressure to stacking, being made Ultra high molecular weight polyethylene films layer fibrillation, the fine water flow jet of high pressure intertwine with each other fiber filament, and compresses fiber filament, Form fiber filament stratum reticulare；

(4), it stretches: compressed fiber filament stratum reticulare is subjected to stretch processing；

(5), secondary high-pressure spun lacing is reinforced: after high pressure fine water flow jet to fiber filament stratum reticulare, by the rebound of holding lace curtaining, being worn Fiber filament stratum reticulare is inserted, the fiber filament in fiber filament stratum reticulare generates position under the hydraulic action that different directions high-speed water jet interts Shifting, interspersed, entanglement and obvolvent, so that fiber filament stratum reticulare be made to be reinforced；

(6), it stretches: the fiber filament stratum reticulare after reinforcing is subjected to stretch processing；

(7), three times high-pressure water-jet reinforce: by the fine water flow jet of high pressure to first-time compression, reinforcing fiber filament stratum reticulare after, be commissioned The rebound of lace curtaining is held, interts fiber filament stratum reticulare again, the fiber filament in fiber filament stratum reticulare is interspersed in different directions high-speed water jet Hydraulic action under, generate displacement, it is interspersed, tangle and obvolvent, so that fiber filament stratum reticulare be made to be compressed, be reinforced again so that Compressed fiber filament stratum reticulare no longer restores to the original state, forms the spunlace non-woven cloth of ultra high molecular weight polyethylene films；

(8), it dries；

(9), it winds.

2. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that step (3) in, a high-pressure water-jet reinforce spun lacing use 6-8 water jet, pressure 10-70Mpa, spun lacing 50-60 minutes.

3. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that step (5) in, secondary high-pressure spun lacing reinforce spun lacing use 3-4 water jet, pressure 5-40Mpa, spun lacing 30-40 minutes.

4. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that step (4) stretching mode in is simple tension, in elongation strain is 5-50% by fiber filament stratum reticulare, rate of extension is 50-5000 milli Under conditions of m/min, stretched along a direction.

5. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that the step Suddenly the stretching mode in (4) be biaxial tension, by fiber filament stratum reticulare elongation strain be 5-50%, rate of extension 50-5000 It under conditions of mm/min, first stretches along a direction, is then stretched further along another direction.

6. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that step (6) stretching mode in is simple tension, in elongation strain is 10-60%, rate of extension 500-6000 by fiber filament stratum reticulare Under conditions of mm/min, stretched along a direction.

7. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that the step Suddenly the stretching mode in (6) be biaxial tension, by fiber filament stratum reticulare elongation strain be 10-60%, rate of extension 500- It under conditions of 6000 mm/mins, first stretches along a direction, is then stretched further along another direction.

8. a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics according to claim 1, which is characterized in that step (7) in, three times high-pressure water-jet reinforce spun lacing use 2-3 water jet, pressure 2-20Mpa, spun lacing 30-40 minutes.

Technical field

The present invention relates to field of nonwoven fabric technology more particularly to a kind of preparation methods of high-strength high-modulus polyethylene non-woven fabrics.

Background technique

High-strength high-modulus polyethylene fiber, also known as ultra high molecular weight polyethylene fiber are current specific strength and Bi Mo in the world Measure highest fiber, polyethylene institute spun fiber of the molecular weight 1,000,000~5,000,000.Ultra high molecular weight polyethylene fiber Extension at break is low, and work to break is big, with the very strong ability for absorbing energy, thus has impact resistance outstanding and anti-cut Property, meanwhile, there is ultra-violet radiation resisting, it is resistant to chemical etching, the advantages that wearability.

Non-woven fabrics is defined as non-woven cloth again, is to be made of fiber orient or random, is environment-friendly materials of new generation, With it is moisture-proof, ventilative, flexible, light, not combustion-supporting, be easy decompose, it is nontoxic nonirritant, rich in color, cheap, recyclable The features such as using again.Such as mostly using polypropylene (pp material) pellet is raw material, is batched continuously through high-temperature fusion, spinneret, paving guiding principle, hot pressing One-step production forms.Cloth is called because of the appearance and certain performances with cloth.It is realized from nineteen forty-two early start in the U.S. After industrialization production, due to it has compared with conventional woven cloth simple production process, yield is big, at low cost, products application extensively etc. Feature, nowadays, it has also become emerging field with the fastest developing speed in textile industry.Non-woven fabrics can be divided by processing method difference: Spun-bonded non-woven fabrics, spunlace non-woven cloth, heat seal non-woven fabrics, wet nonwoven fabrics, needle punched non-woven fabrics etc..Non-woven fabrics has many functionally Excellent properties, purposes is extremely extensive, can be divided into according to its purposes: clothes non-woven fabrics, furniture decoration/household non-woven fabrics, Non-woven fabrics for medical healthcare, filtering material non-woven fabrics etc..

With the increasingly rapid development of national economy, country requires to be increasingly stringenter to the construction quality of infrastructure, to improve The quality of national basis facility, such as agricultural, industry, health care, civil engineering, high-speed railway, highway, cross a river bridge Earth working material science and technology is greatly developed Deng, country, makes great efforts the intensity and quality that improve earth working material.Wherein nonwoven cloth material is main Research object, domestic many patents propose the method for different enhancing non-woven fabrics, but all relatively complicated and there are certain disadvantages End, Chinese patent " a kind of composite acupuncture nonwoven as filed in Gang Yi fibre Co., Ltd, Jinjiang City on June 1st, 2012 Cloth ", warp knitting cloth is laid between two layers of nonwoven web by Patent No. 201220256454.1, the mode then pierced with needle Be made compound nonwoven cloth, this mode be using have woven or knitted fabric and nonwoven web it is compound by the way of improve non-woven fabrics Overall mechanical properties, on the one hand improve manufacturing cost in this way, the addition of another aspect woven fabric or knitted fabric seriously affects The good characteristic of non-woven fabrics water-permeable and air permeable itself, and the rate of utilization of strength of fiber is lower.Wang Changyi was October 30 in 2008 Chinese patent " a kind of method for producing nonwoven gridding reinforced composite nonwoven fabrics " filed in day, Patent No. 200810154952.3, enhance non-woven fabrics by the way of a kind of non-woven mesh, this problem of effective solution is filled The intensity of reinforcing fiber point is utilized, efficiency is higher, but this method can only pair warp and weft both direction reinforced, for having it The non-woven fabrics of the upward intensity requirement of other party is also not applicable, and interlayer is formed by the way of bonding, and overall stability is poor.

Summary of the invention

In order to solve the above technical problem, the present invention provides in view of the deficiencies in the prior art or insufficient, the present invention A kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics is innovatively proposed, one-pass molding manufacture makes spunlace non-woven cloth Overall mechanical properties enhancing not only has higher tearing strength, tensile break strength, bursting strength, but also has good Permeable, permeability.

The technical scheme of the present invention is realized as follows: a kind of preparation method of high-strength high-modulus polyethylene non-woven fabrics, including Following steps:

(1), it stocks up: preparing ultra high molecular weight polyethylene films；

(2), laying: ultra high molecular weight polyethylene films are stacked as required；

(3), a high-pressure water-jet is reinforced: by the ultra high molecular weight polyethylene films layer of the fine water flow jet of high pressure to stacking, being made Ultra high molecular weight polyethylene films layer fibrillation, the fine water flow jet of high pressure intertwine with each other fiber filament, and compresses fiber filament, Form fiber filament stratum reticulare；

(4), it stretches: compressed fiber filament stratum reticulare is subjected to stretch processing；

(5), secondary high-pressure spun lacing is reinforced: after high pressure fine water flow jet to fiber filament stratum reticulare, by the rebound of holding lace curtaining, being worn Fiber filament stratum reticulare is inserted, the fiber filament in fiber filament stratum reticulare generates position under the hydraulic action that different directions high-speed water jet interts Shifting, interspersed, entanglement and obvolvent, so that fiber filament stratum reticulare be made to be reinforced；

(6), it stretches: the fiber filament stratum reticulare after reinforcing is subjected to stretch processing；

(7), three times high-pressure water-jet reinforce: by the fine water flow jet of high pressure to first-time compression, reinforcing fiber filament stratum reticulare after, be commissioned The rebound of lace curtaining is held, interts fiber filament stratum reticulare again, the fiber filament in fiber filament stratum reticulare is interspersed in different directions high-speed water jet Hydraulic action under, generate displacement, it is interspersed, tangle and obvolvent, so that fiber filament stratum reticulare be made to be compressed, be reinforced again so that Compressed fiber filament stratum reticulare no longer restores to the original state, forms the spunlace non-woven cloth of ultra high molecular weight polyethylene films；

(8), it dries: the spunlace non-woven cloth after spun lacing is reinforced three times in step (7) is subjected to drying and processing；

(9), it winds: the spunlace non-woven cloth of the ultra high molecular weight polyethylene films after step (8) drying being wound and is packaged.

Preferably, in step (3), the spun lacing that a high-pressure water-jet is reinforced uses 6-8 water jet, pressure 10- 70Mpa, spun lacing 50-60 minutes.

Preferably, in step (5), secondary high-pressure spun lacing reinforce spun lacing use 3-4 water jet, pressure 5-40Mpa, Spun lacing 30-40 minutes.

Preferably, the stretching mode in step (4) be simple tension, by fiber filament stratum reticulare elongation strain be 5-50%, Under conditions of rate of extension is 50-5000 mm/min, stretched along direction.

Preferably, the stretching mode in the step (4) be biaxial tension, by fiber filament stratum reticulare elongation strain be 5- 50%, rate of extension is under conditions of 50-5000 mm/min, elder generation stretches along a direction, then further along another side To stretching.

Preferably, the stretching mode in step (6) be simple tension, by fiber filament stratum reticulare elongation strain be 10-60%, Under conditions of rate of extension is 500-6000 mm/min, stretched along direction.

Preferably, the stretching mode in the step (6) be biaxial tension, by fiber filament stratum reticulare elongation strain be 10- 60%, rate of extension is under conditions of 500-6000 mm/min, elder generation stretches along a direction, then further along another Direction stretches.

Preferably, in step (7), three times high-pressure water-jet reinforce spun lacing use 2-3 water jet, pressure 2-20Mpa, Spun lacing 30-40 minutes.

Compared with prior art, the beneficial effects of the present invention are:

A kind of preparation process of high-strength high-modulus polyethylene non-woven fabrics of the present invention, in the ultra-high molecular weight polyethylene film of laying layer by layer On, Jing Yici spun lacing, secondary spun lacing reinforces, stretches, three times after spun lacing, forms spunlace non-woven cloth, manufactures for one-pass molding, make water The overall mechanical properties of prick nonwoven cloth enhance, and not only have higher tearing strength, tensile break strength, bursting strength, but also With of good quality, good permeable, permeability, application field is extensive.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.

Application principle of the invention is further described combined with specific embodiments below.