CN2677403Y

CN2677403Y - Asphalt felt basic cloth of two-layer non-woven fabric with net layer in it

Info

Publication number: CN2677403Y
Application number: CNU2003201281974U
Authority: CN
Inventors: 陈树卯
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-19
Filing date: 2003-12-19
Publication date: 2005-02-09
Anticipated expiration: 2013-12-19

Abstract

The utility model discloses an asphalt felt basic cloth of the two-layer non-woven fabric with a net layer in it. A non-woven fabric layer placenta (2) is clamped between the two net layers (1); the non-woven fabric layer placenta (2) and the net layers (1) are stuck together through the upper and the lower needling; the non-woven fabric (2) is a flaky material layer comprising polyester short fiber; each net layer (1) is a net shaped material layer whose shape is prismatic (1B) or like a Chinese character 'jing' (1A), and the net layer (1) is woven by polyester long fiber. Compared with traditional asphalt felt made of base material, the utility model has increased tensile strength, improved elongation rate, good dipping effect, stable thermal shrinkage rate, strong adhesive force, low cost, and easy processing and manufacturing; the utility model can be extensively used for the production of the asphalt felt and the water-proof engineering of bedding the hot dipping asphalt or cold compressing the chemical material.

Description

Nonwoven cloth clamp clathrum blank malthoid basic cloth

Technical field the utility model relates to waterproof material, particularly a kind of nonwoven cloth clamp clathrum blank malthoid basic cloth.

The waterproofing work that the known paper substrate tire of background technology malthoid is done, my investigation find to construct the then 20-30% that reaches of seepage then; House 70% seepage of construction more than 3 years.Its reason is because indoor/outdoor temperature-difference is bigger, and along with the sedimentation of building, malthoid tensile strength is low, and extensibility is little, the fracture seepage occurs.In order to improve the performance of waterproof roll, the paper substrate tire is eliminated gradually at present, and adopts non-woven fabricbase tire.The felt matrix of the paper substrate of China's replacement at present tire is an acupuncture padding method terylene non-weaving cloth.This technology is so substantially: the first, and in order to satisfy the needs of medium-to-high grade malthoid, need choose the polyster fibre of high flatness and do raw material, consumption 200-300g/m ²Mix and refuel; The second, combing; The 3rd, fiber becomes net, and fiber becomes net to require the 10-15 layer; The 4th, give acupuncture; The 5th, carry out twice master acupuncture up and down, make the method formation one of the fiber web of 10-15 layer by acupuncture, needling density must guarantee 350-400 pin/cm ², this just requires to give punch frequency and reaches 500 times/minute, main punch frequency 900 times/minute, and 5 meters/minute of output speeds only in this way could guarantee that the tensile strength of final products reaches 300-350N, percentage elongation 30-40%; The 6th, stentering forming; The 7th, cut edge; The 8th, will flood 40% high-temperature-resistant adhesive, adhesive 50g/m through the fiber web of above-mentioned steps ²So just make the tensile strength of product be enhanced to 400-500N, percent thermal shrinkage to less than 2%, reaches 1: 1.7 to the brute force ratio in length and breadth in length and breadth; The 9th, will be through the fiber web hot rolling drying and shaping of dipping, the packing of reeling at last.The technological parameter of this product is 250-350g/m ²The malthoid of processing through the basic tire of this explained hereafter reaches about 10 years product top-quality product rate 85-90% service life.This technological process complexity, production efficiency is low, and properties of product are general.

Utility model content the purpose of this utility model provides a kind of tension intensity and increases, and percentage elongation improves, good permeation effect, and dimensional stability to heating in house is stable, strong adhesion, processing and fabricating with low cost are easy to nonwoven cloth clamp clathrum blank malthoid basic cloth.

The technical solution of the utility model is: a kind of nonwoven cloth clamp clathrum blank malthoid basic cloth, comprise nonwoven fabric, and it is characterized in that: at two-layer nonwoven therebetween clathrum blank, nonwoven fabric and clathrum blank bond together by acupuncture up and down.

Described nonwoven fabric is the flaky material layer that constitutes with polyester staple fiber.

Described clathrum blank is with woven Jing Zixing of polyester long fiber or the latticed material layer of prismatic.

The utility model is owing to adopted and construct its beneficial effect at two-layer nonwoven therebetween clathrum blank and be: the malthoid tension intensity that adopts the more traditional base material of this nonwoven cloth clamp clathrum blank malthoid basic cloth to make increases, percentage elongation improves, good permeation effect, dimensional stability to heating in house is stable, strong adhesion, with low cost, processing and fabricating is easy, can be widely used in the production of malthoid and the waterproofing work of place mat hot dipping pitch or cold compress chemical material.

Description of drawings Fig. 1 is a nonwoven cloth clamp clathrum blank malthoid basic cloth organigram;

Fig. 2 is the Jing Zixing clathrum structure of nonwoven cloth clamp clathrum blank malthoid basic cloth

Make schematic diagram;

Fig. 3 is the prismatic clathrum structure of nonwoven cloth clamp clathrum blank malthoid basic cloth

Schematic diagram.

Specific embodiment Figure of description is the optimal way that the utility model is implemented, and is described in detail the utility model below in conjunction with Figure of description.

As shown in Figure 1: a kind of nonwoven cloth clamp clathrum blank malthoid basic cloth, at two-layer nonwoven 1 therebetween clathrum blank 2, nonwoven fabric 1 and clathrum blank 2 bond together by acupuncture up and down, and described nonwoven fabric 1 is the flaky material layer that constitutes with polyester staple fiber.

Shown in Fig. 2,3: clathrum blank 2 is with woven Jing Zixing 2A of polyester long fiber or the latticed material layer of prismatic 2B.

The utility model by polyester staple fiber by air-laid or unclog and readjust lapping and form nonwoven fabric 1, folder clathrum blank 2 between two-layer nonwoven 1, clathrum blank 2 adopts the polyester long fiber to manufacture Jing Zixing 2A or prismatic 2B, there are not anti-cloth 1 and clathrum blank 2 formation three-layer network sheets, mode with acupuncture evenly bonds together the net sheet mutually, through hot rolling, impregnation, operation rolling such as tentering, typing, oven dry, both basic cloths of using for malthoid, the basic cloth tensile strength of this structure reaches 450N-1000N, percentage elongation about 40%; When oil temperature 180 was spent, power of impregnation reached more than 98%, percent thermal shrinkage≤2mm, and the malthoid of processing through the basic tire of this explained hereafter reaches about 15 years service life, and the product top-quality product rate is more than 90%.

Claims

1, a kind of nonwoven cloth clamp clathrum blank malthoid basic cloth comprises nonwoven fabric (1), it is characterized in that: at two-layer nonwoven (1) therebetween clathrum blank (2), nonwoven fabric (1) and clathrum blank (2) bond together by acupuncture up and down.

2, nonwoven cloth clamp clathrum blank malthoid basic cloth according to claim 1 is characterized in that: nonwoven fabric (1) is the flaky material layer that constitutes with polyester staple fiber.

3, nonwoven cloth clamp clathrum blank malthoid basic cloth according to claim 1 is characterized in that: clathrum blank (2) is with woven Jing Zixing of polyester long fiber (2A) or the latticed material layer of prismatic (2B).