CN105734987B

CN105734987B - Building form cloth and preparation method thereof

Info

Publication number: CN105734987B
Application number: CN201610148970.5A
Authority: CN
Inventors: 钱程
Original assignee: Jiaxing University
Current assignee: SUZHOU KINGCHARM NEW MATERIALS Corp.
Priority date: 2016-03-15
Filing date: 2016-03-15
Publication date: 2018-01-26
Anticipated expiration: 2036-03-15
Also published as: CN105734987A

Abstract

The invention discloses a kind of building form cloth and preparation method thereof, it is related to building material field.The building form cloth is made up of base fabric and film expanding foam solution.The preparation method of building form cloth includes：The process that fibrous raw material is fed to cotton, secondary shredding, air pressure cotton box hello cotton, combing air lay, pinprick reinforcement, cutting and winding by weighing obtains base fabric, and fibrous raw material is PP fine count fibers, PP coarse denier fibers and PP/PE low melting point bicomponent fibers；Prepare film expanding foam solution；Film expanding foam solution is delivered into base fabric surface layer and carries out film；Base fabric after film is sent into baking oven and carries out baking and curing；Base fabric be wound after pressing bubble processing, obtains building form cloth.Method provided by the invention, pass through the cortex fusing of PP/PE low melting points bicomponent fibers and PP fiber adhesions in baking and curing, and film expanding foam solution is coated in base fabric to improve the deflection of base fabric so that the building form cloth of preparation has good deflection and smoothness concurrently.

Description

Building form cloth and preparation method thereof

Technical field

The present invention relates to building material field, more particularly to a kind of building form cloth and preparation method thereof.

Background technology

As the mankind stride into 21st century, requirement more high-endization and modernization of the society for building, therefore build New Building Materials are more and more employed when building construction, permeable template cloth is exactly one of numerous New Building Materials, and it is not It is only capable of eliminating the common fault of concrete quality such as the bubble, sand line, sand spot of concrete surface, concrete is formed compact surfaces, improves Concrete apparent mass, and concrete performance can be further improved, improvement concrete durability, raising concrete abrasion-resistant, Frost resistance and surface tensile strength [Baidupedia：http://baike.baidu.com/view/546183.htm], exist [Guo is applied successfully in domestic such as Yantian Harbor in Shengzhen engineering, Zhoushan Islands engineering and Construction of Hangzhou Bay Cross-sea Bridge Important Project Guarantor woods, technical benefits [J] the concrete world that the permeable template linings such as Huang Zhide, Zhu Jupeng are applied in concrete works, 2013,(3):77-81.], and its application is still constantly expanding.The formwork cloth of present domestic production is mainly with acupuncture nonwoven Based on cloth, although surface arranges by hot light, concrete surface is easily caused in use there are still form removal is difficult, during form removal Scratch, easily there is gauffer and reuse the problems such as number be'ss few [bright and clean table of concrete for hydraulic structure such as side plan, Tian Zhenghong, well brocade rising sun Form technology experiment [J] Advances In Science And Technology of Water Resources of sight, 2012,32 (6):60-63.], therefore continual exploitation performance is more preferable Permeable template cloth turn into study hotspot.

The existing related data for building template cloth has：

Patent of invention CN200510019411.6 discloses a kind of two layers by with different pore size or the non-of three-decker is knitted Make cloth and form nonwoven fabric nonwatertight moisture keeping template lining, it including non-woven cloth by producing and aftertreatment technology is made, double-layer structure It is made up respectively of fiber of the fineness by 0.7~1.5,1~3.3dtex, the aperture of this two layers of hole is respectively 1~10,4~15 μ m；Three-decker is made up of the superficial layer, porous layer and tack coat arranged from top to bottom, superficial layer and tack coat respectively with coagulation Native directly contact, template are connected, and tack coat is made up of fineness of 2.2~4.4dtex fiber, and the aperture of this layer of hole is 10~ 30μm.The invention in the preparation, will use the fiber of different fineness to be respectively produced the structure of two layers or three layers non-woven cloth, so It is compound using needle-punching method progress again afterwards, final finishing, complex manufacturing, especially for acquirement micrometer grade hole are then carried out again Gap structure（1~10,4~15 μm）And the fiber that fibre fineness is 0.7dtex has been selected, this fineness fiber is difficult in production Combed using common carding machine（In addition the fineness fiber is not also sold commercially, and general microfibre is Using the method for tangerine valve fiber type or sea-island fibre）；On the other hand by two layers or three layers non-woven progress well prepared in advance Compound tense, also it is easily caused original designed hole and changes, therefore the invention is actually difficult to.

Patent of invention CN201010131345.2 is related to a kind of concrete cast permeable template cloth, and the permeable template cloth is Filtering surface layer is compound with permeable bottom, and the grammes per square metre of filtering surface layer supatex fabric is 10g/m²~100g/m², main fibre is straight Footpath is 1~20microns, and effective aperture is 4~20microns；The fibre diameter of permeable bottom supatex fabric be 15~ 60microns, grammes per square metre are controlled in 50~250g/m²Interior, effective aperture is 8~70microns.Due to filtering surface layer employ it is molten Blowing nonwoven, its maximum feature are that composition fiber is superfine fibre, can reach the less purpose in aperture, but melt-blown non-woven The shortcomings that cloth is that strength is very low, it is impossible to used directly as outer layer, therefore it is typically compound strong in the both sides of melt-blowing nonwoven The higher non-woven cloth of degree（Such as spun-bonded non-woven fabrics）If using melt-blowing nonwoven as the surface layer of formwork cloth, in work progress It is to have no idea to bear the extraneous pressure into ton cement, therefore the patent does not have practicality.

Patent of invention CN201210150182.1 is related to a kind of permeable template cloth, is passed through by superficial layer, intermediate layer and basic unit The mode order of acupuncture is combined, and the intermediate layer is grid cloth, and superficial layer and basic unit are non-woven fabrics, and basic unit bottom surface is provided with one It is individual with upper groove, the groove at least one end and ft connection.Grid cloth is chosen during preparation as intermediate layer, is 20- by length Web is made in 60mm polymer fiber, paves on the grid cloth of intermediate layer, then using needling process, forms basic unit's non-woven fabrics With the complex of intermediate layer grid cloth；After basic unit's progress calendering processing of complex, then by pressure roller hot pressing in basic unit bottom Form groove；Nanofiber is set to be formed uniformly superficial layer on the upper surface in complex intermediate layer by electrostatic spinning；Finally It is heat-treated, is produced.The uniform outer surface layer of nanofiber is obtained due to the method using electrostatic spinning, and Static Spinning is current Laboratory stage is only at, industrialized production can not be carried out at all, thus sends elsewhere and bright does not have actual operation.

Utility model patent CN201220009612.3 discloses a kind of composite permeable form lining and is provided with this lining The building template of pad.The pad is made up of superficial layer and bottom, is bonded into composite structure, its superficial layer filtration, by Nylon, polyester, the braiding of PP, PE or other plastic filament material form, and the gap of braiding can pass through water, air and tiny of part Grain, and prevent larger cement granules from passing through；Bottom is that the nonwoven with hydrophobic culvert water effect is made into.Utility model patent CN200720088626.8 discloses a kind of formwork lining cloth based on moisture preservation of cellulose base fiber, is a kind of by Single Fiber layer, mixing The integrative-structure of fibrous layer and base cloth layer composition；Wherein mixed fiber layer is between Single Fiber layer and base cloth layer；Single fibre Another surface concrete contact of layer is tieed up, the another side of base cloth layer is Nian Jie with construction template.Utility model patent CN02268999.0 discloses one kind and is easy to regulate and control infiltrative concrete blinding pad, and it is by form cage supporting layer and filter layer Bond and form, form cage supporting layer is macromolecule network structure, and filter layer is synthetic fibers non-woven cloth.Above three is practical The formwork cloth that new patent is related to is that requirement first individually produces each single layer structure, then again will using some way Two to three layers of single layer structure progress is compound, causes production cost to greatly improve.

Utility model patent CN201120096712.X discloses a kind of permeable template cloth, and it is made up of three layers of non-woven fabrics, the Two layers of non-woven fabrics are the non-woven fabrics of the puffy between first layer and third layer non-woven fabrics, first layer and third layer non-woven fabrics It is that there is the crossings on different level that average pore size is 2~30 microns on two surfaces of the second layer non-woven fabrics of puffy respectively The fine and close non-woven fabrics of microgrid pore structure, three layers of non-woven fabrics are mutually extended by their fiber, interconnection is and integral.This is special Middle loft layer described in profit loses bulkiness in formwork cloth work progress, by being extruded by the cement into ton weight, thus Good water penetration is not had.

In summary, existing to be related in the preparation method of building form cloth, the material on the one hand used is unreasonable, causes On the other hand patent mainly first prepares monolayer material, then monolayer material is combined with each other again without operability is implemented, Preparation technology is complicated, while also changes the pore structure of pre-designed monolayer material, thus develops to have and implement Feasibility and the building form cloth of easy processing is very necessary.

In order to overcome existing building formwork cloth fold, the formwork cloth surface easily with cement surface adhesion, after easily occur It is difficult to clear up and the deficiencies of production cost is high, is produced with lower cost and convenience, the present invention provides a kind of building With formwork cloth and preparation method thereof.

The content of the invention

In view of the above-mentioned problems existing in the prior art, the invention provides a kind of building form cloth and preparation method thereof.

First aspect according to embodiments of the present invention, there is provided a kind of preparation method of building form cloth, methods described bag Include：

By fibrous raw material through weighing feed cotton, secondary shredding, air pressure cotton box feed cotton, comb air lay, pinprick reinforcement, point The preparation section cut and wound, is prepared base fabric, and the fibrous raw material is respectively PP fine count fibers, PP coarse denier fibers and PP/ PE low melting point bicomponent fibers, wherein the fineness of the PP fine count fibers and the PP coarse denier fibers is 3-11D, length 51- 65mm, the PP/PE low melting points bicomponent fibers fineness are 1.5-3D, length 38-51mm, the PP fine count fibers, described The mixed ratio of PP coarse denier fibers and the PP/PE low melting points bicomponent fibers three are 30-40：40-60:10-20；

Prepare film expanding foam solution；

The base fabric debatching is delivered to coating machine, the film expanding foam solution delivered to via the delivery pipe of coating machine described Base fabric surface layer carries out film, and the size of coated weight is controlled using scraper, controls the distance between the scraper and the base fabric to be 0.7-1.8mm, make the coated weight of the film expanding foam solution in 40-80g/m²Between, film speed is 10-15m/min；

The base fabric after film is sent into baking oven, baking and curing, four sections are carried out using the drying mode of sectional Drying temperature is respectively：90-95 DEG C, 96-100 DEG C, 101-110 DEG C, 111-120 DEG C, the baking and curing time is 1-4min；

By the base fabric after baking and curing, go out after baking oven pass through by a pair by hard roller and soft roller group into chilling roller pressure bubble Reason, the coated surface of the base fabric is towards hard roller during roll compacting, and pressure bubble pressure while control is in 58-70N/cm²Between, it is wound after pressure bubble It is 250-380g/m to obtain grammes per square metre²Building form cloth.

As a further improvement on the present invention, in cotton process is fed in the weighing, equal cotton hired roughneck rotating speed is 165-190 r/ Min, brad curtain linear velocity are 6.9-14.4 m/min；

In the secondary shredding process, porcupine opener Beater Speed between 300-450 r/min, open by sawtooth drum Cotton machine Beater Speed is between 650-800 r/min；

In the air pressure cotton box feeds cotton process, air pressure cotton box shredding hired roughneck rotating speed goes out cotton between 350-500 r/min Roller rotating speed is between 14-25 r/min, and between 2-4 MPa, lower hopper air pressure exists the upper hopper air pressure of the air pressure cotton box Between 2.5-4.5MPa, sheet cotton surface density irregularity CV values are made to reach 4-8%；

In the combing air-laid process, the linear velocity of cylinder is 810-950 m/min, and working roll linear velocity is 60-78 m/min, angle stripper linear velocity are 140-155 m/min, air-flow stripping net at present fan speed in 850-1000 r/min Between, unit suction airstream volume is reached 3-4 g/m containing fine amount³, lapper convoying curtain speed is 3-5 m/min；

Thorn that the pinprick reinforcement process employs one of pre- thorn, two main thorns are had a shave with together with, wherein pre- pierce selects pricker The R222 G3027 of model 15 × 18 × 38 × 3.5, between 3500-5000 pieces/m, punch frequency exists needle plate bestock Between 500-650 thorns/min, depth of needling is set to reach 9.5-11.5mm；Main thorn selects pricker model 15 × 18 × 40 × 3 R222 G3037, for needle plate bestock between 6500-8000 pieces/m, punch frequency makes acupuncture deep in 800-950 thorns/min Degree reaches 7-9mm；The R111 G3017 of pricker model 15 × 18 × 42 × 3 are selected in acupuncture of having a shave, and needle plate bestock exists Between 15000-16000 pieces/m, punch frequency makes depth of needling reach 2-3 mm between 1300-1400 thorns/min；The pin Speed when thorn is reinforced is 3-3.5 m/min, and the grammes per square metre of the obtained base fabric is 180-270g/m²。

As a further improvement on the present invention, the film expanding foam solution for preparing includes：

According to silane coupler：Alcohol：Water is（20-22）：（70-72）：（6-10）Ratio prepared, obtain silane idol Join agent solution, the silane coupler is 3- aminopropyl triethoxysilanes or N- (2- aminoethyls) -3- aminopropyltriethoxy diformazans At least one of TMOS, the alcohol are at least one of methanol or ethanol；

It is Span-80 or AEO that water, dispersant and silicon powder, the dispersant are added in agitator At least one of, dispersant described in the agitator is 0.5-1% for the mass percent of water, and the silicon powder is directed to The mass percent of water is 10-20%, first stirs 30min with 2500r/min speed, is then stirred with 750r/min speed 20min, obtain the silica gel solution of favorable dispersibility；

The styrene-acrylic emulsion that solid content is 25-40% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:2-4 ratio Example adds the silica gel solution, then adds the silane coupler solution, the silane coupler solution is directed to the silicon The mass percent of sol solution and the styrene-acrylic emulsion solution is 1-2%, then be added dropwise ammoniacal liquor regulation solution pH value be 8-10, with After 500r/min speed stirring 1-2h, stop stirring discharging, obtain alkaline-resisting glue；

1-3% foaming agent and 1-3% foam stabilizer are separately added into the alkaline-resisting glue, stirring makes the alkaline-resisting glue System viscosity between 1500-2000mPa s, then ventilate and foam via foam maker, foam in the foaming process Head rotating speed is between 850-1400r/min, and air inflow reaches 78-90%, and system blowing ratio reaches 1:5-1:9, foaming is prepared Density is in 0.15-0.25g/cm³Between film expanding foam solution.

As a further improvement on the present invention, the PP fine count fibers, the PP coarse denier fibers and the PP/PE eutectics Contain hydrophilic finish, oil content 0.75-0.85% in point bicomponent fibers surface.

As a further improvement on the present invention, the silicon powder is superfine silicon dioxide micro mist, mesh number 5000-8000, Average grain diameter is 1-2.5 μm.

As a further improvement on the present invention, the foaming agent is SAS, isooctanol sodium sulphate or dodecane At least one of base dimethyl betaine, the foam stabilizer are at least one of silicones polyethers emulsion or Stearyl Amine.

Second aspect according to embodiments of the present invention, there is provided a kind of building form cloth, the building form cloth is by upper The preparation method for stating any described building form cloth is prepared, and the building form cloth is by the base fabric and the painting Film expanding foam solution forms.

Compared with prior art, building form cloth provided by the invention and preparation method thereof has advantages below：

1) deflection is good, is less prone to fold：The present invention employs 10-20% PP/PE eutectics in the fibrous raw material of base fabric Point bicomponent fibers, are coordinated and are handled with the surface coating of 40-60% PP coarse denier fibers and film expanding foam solution, in follow-up baking During solidization, using PP coarse denier fibers as main body framework, when PP/PE cortex melt, by the PP fibers around it firmly It is bonding to, on the one hand considerably increases the deflection of base fabric, the tensile strength of base fabric has on the other hand also been significantly greatly increased（Pinprick reinforcement + heat bonding is reinforced）, along with the glass transition temperature of film expanding foam solution is the styrene-acrylic emulsion more than 30 DEG C, also to a certain extent The deflection of base fabric is added, makes the deflection of final base fabric between 60-80 (mN), between existing needle punched non-woven fabrics and plastic plate Deflection between, avoid formwork cloth in laying, filling concrete and process of vibrating on the spot and the problem of gauffer easily occur, improve The presentation quality of building.

2）Surface is smooth, easy mold release：The present invention adds superfine silicon dioxide powder (average grain diameter 1- in film expanding foam solution 2.5 μm), it can strengthen and apply film strength and surface flatness, make to be easier during form removal, ensure that cement works thing surface after form removal It is smooth, when avoiding form removal concrete surface cement mortar by building form cloth dilute and stick out and the problem of abrade surface, together The film layer of Shi Hanyou superfine silicon dioxide powder also has preferable wearability and resistance to ag(e)ing, makes the building form of the present invention The reuse number of cloth is more than 5 times.

3）Drainage is good：There is building form cloth of the present invention good drainage to be embodied in two aspects：One That the method for combing air-flow stripping net is employed when preparing base fabric, i.e. fibrous raw material enters carding machine after two openers, It is being carded to after single fiber state under the synergy of the centrifugal force and air-flow of carding machine, fiber is sawed from card clothing Come off on tooth, uniformly conveyed and condensed upon on lace curtaining by air-flow, fiber is formed along X to, Y-direction and Z-direction（Thickness direction）Three Dimension distribution, that is, have few fibers to be distributed along base fabric thickness direction（Different from card doffer shell net, fiber along X to and Y-direction Distribution）, thus easily formed along the water guide capillarity on base fabric thickness direction；Second, foaming film is carried out in scrim surfaces Processing, roll compacting subsequently is steeped through overvoltage, so that the foams of film reduce rupture, make partial air in surfactant foam layer from base The tow sides discharge of cloth, while scrim surfaces form 8-15 μm of water guide micropore, one is also formed along base fabric thickness direction The microporous membrane that layer is mutually communicated, adds the transmissibility of base fabric, due to belonging to micropore discharging mode, will not be caused by coagulation The mixing water draining that soil oozes out is too fast and forms sand line water wave phenomenon on cement works thing surface.

4) good water resistance：The present invention is as a result of foaming coating process, in scrim surfaces and along base fabric thickness The micropore that direction has countless 8-15 μm is present, and on the one hand these micropores are used as conduit pipe, on the other hand also become water storage Micropore pond, lasting moisture-keeping maintaining can be provided for Surface layer's concrete, improve the degree of hydration before Surface layer's concrete 7d ages, enter And reach the purpose for shortening curing period.

5）Reduce production cost：The present invention is carried out at film on the basis of the base fabric prepared using film expanding foam solution Reason, and superfine silicon dioxide powder enhancing wearability, resistance to ag(e)ing are added, while the light of film coated surface is improved using cold rolling technology Sliding planarization, because the use for the technology for coating that foams reduces the dosage of fibrous raw material in base fabric, reduction fibre weight is 40-80g/ m², it is thus possible to production cost is effectively reduced,

In summary, the present invention is to the scrim surfaces of pinprick reinforcement by doing coating problems, obtains that surface is smooth, the back side Crude and through-thickness is covered with the building form cloth of water guide micropore, while low melting point is added in the fibrous raw material of base fabric Two-component PP/PE fibers, further increase the deflection and tensile strength of base fabric, can avoid building form cloth laying and Occurs the problem of fold during use, obtained New Building Materials have good deflection and intensity, surface smooth abrasion-proof concurrently Good, water guide and good water-retaining property, simultaneously because the use of intumescent coating technology reduces the dosage of fibrous raw material in base fabric, are reduced Production cost, solves building form cloth and fold, surface easily occurs and easily get wet mud and damage building surface and production The problem of cost is high.

Embodiment

Here exemplary embodiment will be illustrated in detail, the embodiment described in following exemplary embodiment Do not represent all embodiments consistent with the present invention.On the contrary, they be only with as being described in detail in appended claims , the example of the method that some aspects of the invention are consistent.

With reference to specific embodiment（But it is not limited to illustrated embodiment) the invention will be further described, wherein in invention The fiber source being related to：

PP coarse denier fibers and PP fine count fibers, hydrophilic, purchased from Hubei Bo Taohexian Co., Ltds；PP/PE two-components are fine Dimension, hydrophilic, purchased from the new Wei Shihexian limited companies in Zhejiang.

Auxiliary chemicals source：

Silane coupler：N- (2- aminoethyls) -3- aminopropyltriethoxy dimethoxysilanes, model CY-602；3- ammonia third Ethyl triethoxy silicane alkane, model CY-550, purchased from leaf organosilicon material of speeding（Shanghai）Co., Ltd.

Ethanol and methanol, top pure grade, purchased from Kaifeng Sheng Yuan Chemical Co., Ltd.s.

Dispersant：Tween, model Span-80, purchased from Shanghai Bei Ke Chemical Co., Ltd.s；AEO, Model AEO, purchased from Guangzhou Shi Xian Chemical Co., Ltd.s.

Silicon powder, 5000-8000 mesh, purchased from Guangzhou Rong Yue industrial chemicals Co., Ltd.

Styrene-acrylic emulsion, model 1250, purchased from Jinan Xiang Fa Chemical Industry Science Co., Ltd.

Foaming agent：SAS, model SAS 60, purchased from Guangzhou Zhe Jun trade Co., Ltds；Isooctanol sulphur Sour sodium, model PT 808, purchased from Hubei Jihechang Chemical Industry Technology Co., Ltd.；Dodecyldimethylammonium hydroxide inner salt, model BS-12, purchased from Guangzhou Gong Xin Chemical Co., Ltd.s.

Foam stabilizer：Silicones polyethers emulsion, model FM-550, purchased from Longkou great Mai Chemical Co., Ltd.s；It is stearic Acid amide, model HMY-630, purchased from Haining hippocampus auxiliary reagent factory.

Embodiment 1

A kind of preparation method of building form cloth, including：

Step 101, fibrous raw material is fed to cotton, secondary shredding, air pressure cotton box hello cotton, combing air lay, pin by weighing The preparation section that thorn is reinforced, cuts and wound, is prepared base fabric, the fibrous raw material is respectively PP fine count fibers, the thick denier of PP Fiber and PP/PE low melting point bicomponent fibers, wherein the fineness of the PP fine count fibers and the PP coarse denier fibers is 3-11D, Length is 51-65mm, and the PP/PE low melting points bicomponent fibers fineness is 1.5-3D, length 38-51mm, the PP fine-deniers The mixed ratio of fiber, the PP coarse denier fibers and the PP/PE low melting points bicomponent fibers three is 30-40：40-60: 10-20。

Step 102, film expanding foam solution is prepared.

Step 103, the base fabric debatching is delivered to coating machine, the delivery pipe by the film expanding foam solution via coating machine Deliver to the base fabric surface layer and carry out film, the size of coated weight is controlled using scraper, is controlled between the scraper and the base fabric Distance is 0.7-1.8mm, makes the coated weight of the film expanding foam solution in 40-80g/m²Between, film speed is 10-15m/min.

Step 104, the base fabric after film is sent into baking oven, using the drying mode of sectional dry admittedly Change, four section drying temperatures are respectively：90-95 DEG C, 96-100 DEG C, 101-110 DEG C, 111-120 DEG C, the baking and curing time is 1- 4min。

Step 105, by the base fabric after baking and curing, go out after baking oven pass through by a pair by hard roller and soft roller group into chilling roller The processing of pressure bubble, the coated surface of the base fabric is towards hard roller during roll compacting, and pressure bubble pressure while control is in 58-70N/cm²Between, after pressure bubble It is 250-380g/m to be wound to obtain grammes per square metre²Building form cloth.

Embodiment 2

Step 201, fibrous raw material is fed to cotton, secondary shredding, air pressure cotton box hello cotton, combing air lay, pin by weighing The preparation section that thorn is reinforced, cuts and wound, is prepared base fabric, the fibrous raw material is respectively PP fine count fibers, the thick denier of PP Fiber and PP/PE low melting point bicomponent fibers, wherein the fineness of the PP fine count fibers and the PP coarse denier fibers is 3-11D, Length is 51-65mm, and the PP/PE low melting points bicomponent fibers fineness is 1.5-3D, length 38-51mm, the PP fine-deniers The mixed ratio of fiber, the PP coarse denier fibers and the PP/PE low melting points bicomponent fibers three is 30-40：40-60: 10-20。

As a further improvement on the present invention, in cotton process is fed in the weighing, equal cotton hired roughneck rotating speed is 165-190 r/ Min, brad curtain linear velocity are 6.9-14.4 m/min.

In the secondary shredding process, porcupine opener Beater Speed between 300-450 r/min, open by sawtooth drum Cotton machine Beater Speed is between 650-800 r/min.

In the air pressure cotton box feeds cotton process, air pressure cotton box shredding hired roughneck rotating speed goes out cotton between 350-500 r/min Roller rotating speed is between 14-25 r/min, and between 2-4 MPa, lower hopper air pressure exists the upper hopper air pressure of the air pressure cotton box Between 2.5-4.5MPa, sheet cotton surface density irregularity CV values are made to reach 4-8%.

In the combing air-laid process, the linear velocity of cylinder is 810-950 m/min, and working roll linear velocity is 60-78 m/min, angle stripper linear velocity are 140-155 m/min, air-flow stripping net at present fan speed in 850-1000 r/min Between, unit suction airstream volume is reached 3-4 g/m containing fine amount³, lapper convoying curtain speed is 3-5 m/min.

Step 202, according to silane coupler：Alcohol：Water is（20-22）：（70-72）：（6-10）Ratio prepared, obtain To silane coupler solution, the silane coupler is 3- aminopropyl triethoxysilanes or N- (2- aminoethyls) -3- aminopropyls At least one of methyl dimethoxysilane, the alcohol are at least one of methanol or ethanol.

Step 203, it is Span-80 or poly alkyl alcohol water, dispersant and silicon powder, the dispersant to be added in agitator At least one of oxygen vinethene, dosage 0.5-1%, the dosage of the silicon powder is 10-20%（It is the quality hundred for water Divide ratio）, 30min is first stirred with 2500r/min speed, 20min is then stirred with 750r/min speed, it is good to obtain dispersiveness Good silica gel solution；

Step 204, the styrene-acrylic emulsion that solid content is 25-40% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:2-4 ratio adds the silica gel solution, then adds silane coupler solution described in 1-2%（For the silica gel solution With the mass percent of the styrene-acrylic emulsion solution）, then be added dropwise ammoniacal liquor regulation solution pH value be 8-10, with 500r/min speed After degree stirring 1-2h, stop stirring discharging, obtain alkaline-resisting glue；

Step 205,1-3% foaming agent and 1-3% foam stabilizer are separately added into the alkaline-resisting glue, stirring makes described Then the system viscosity of alkaline-resisting glue is ventilated via foam maker and foamed between 1500-2000mPa s, described to foam For frothing head rotating speed between 850-1400r/min, air inflow reaches 78-90% in journey, and system blowing ratio reaches 1:5-1:9, prepare Expansion density is obtained in 0.15-0.25g/cm³Between film expanding foam solution.

It should be noted that the flow of step 202 to step 205 can also be implemented before step 201, i.e. the present invention The preparation to base fabric and the preparation of film expanding foam solution order are not defined successively the embodiment of offer.

Step 206, the base fabric debatching is delivered to coating machine, the delivery pipe by the film expanding foam solution via coating machine Deliver to the base fabric surface layer and carry out film, the size of coated weight is controlled using scraper, is controlled between the scraper and the base fabric Distance is 0.7-1.8mm, makes the coated weight of the film expanding foam solution in 40-80g/m²Between, film speed is 10-15m/min.

Step 207, the base fabric after film is sent into baking oven, using the drying mode of sectional dry admittedly Change, four section drying temperatures are respectively：90-95 DEG C, 96-100 DEG C, 101-110 DEG C, 111-120 DEG C, the baking and curing time is 1- 4min。

Step 208, by the base fabric after baking and curing, go out after baking oven pass through by a pair by hard roller and soft roller group into chilling roller The processing of pressure bubble, the coated surface of the base fabric is towards hard roller during roll compacting, and pressure bubble pressure while control is in 58-70N/cm²Between, after pressure bubble It is 250-380g/m to be wound to obtain grammes per square metre²Building form cloth.

As a further improvement on the present invention, the PP fine count fibers, the PP coarse denier fibers and the PP/PE low melting points Contain hydrophilic finish, oil content 0.75-0.85% in bicomponent fibers surface.

As a further improvement on the present invention, the silicon powder is superfine silicon dioxide micro mist, mesh number 5000-8000, Average grain diameter is 1-2.5 μm.Film layer containing superfine silicon dioxide powder also has preferable wearability and resistance to ag(e)ing, makes this The reuse number of the building form cloth of invention is more than 5 times.

Embodiment 3

1）The preparation of base fabric

Fineness from PP fine count fibers is 3D, the fineness of length 51mm, PP coarse denier fiber is 9D, length 65mm, PP/PE low melting point bicomponent fibers fineness is 1.5D, length 38mm, PP fine-denier and thick denier and the mixed ratio of PP/PE three Example is 30：60:10, PP fine count fibers, PP coarse denier fibers and PP/PE low melting point bicomponent fibers surface oil content are 0.85%；

Mainly preparation technology parameter is：It is 165r/min to weigh and feed cotton hired roughneck rotating speed in cotton process, brad curtain linear velocity For 6.9 m/min；It is 300r/min that porcupine opener Beater Speed is controlled in secondary shredding process, and sawtooth drum opener is beaten Hand speed is 650r/min；Air pressure cotton box feed cotton process in control pressure hopper shredding hired roughneck's rotating speed between 350r/min, It is 14r/min to go out cotton roller rotating speed, and the upper hopper air pressure of air pressure cotton box is 2MPa, and lower hopper air pressure is 2.5MPa, makes sheet cotton face Density irregularity rate CV values reach 8%；It is 810m/min to comb and the linear velocity of cylinder is adjusted in air-laid process, working roll linear speed It is 140m/min to spend for 60 m/min, angle stripper linear velocity, and it is 850r/min that air-flow stripping controls leeward machine speed when netting, and makes unit Suction airstream volume reaches 3g/m containing fine amount³, lapper convoying curtain speed is 3m/min；

Pre- thorn, two main thorns together are employed in pinprick reinforcement process to have a shave with together with thorn, and pricker type is selected wherein piercing in advance Number be 15 × 18 × 38 × 3.5 R222 G3027, needle plate bestock is 3500 pieces/m, control punch frequency for 500 thorns/ Min, depth of needling is set to reach 9.5 mm；Main thorn selects the R222 G3037 of pricker model 15 × 18 × 40 × 3, and needle plate plants pin Density is 6500 pieces/m, and it is 800 thorns/min to control punch frequency, depth of needling is reached 7mm；Pricker model is selected in acupuncture of having a shave For 15 × 18 × 42 × 3 R111 G3017, needle plate bestock is 15000 pieces/m, and it is 1300 thorns/min to control punch frequency, Depth of needling is set to reach 2 mm；Speed during pinprick reinforcement is 3 m/min, is made again by cutting and rolling step after reinforcing Base fabric coiled material, obtained base fabric grammes per square metre are 180g/m²；

2）The preparation of film expanding foam solution

（1）The preparation of alkaline-resisting glue

A. silane coupler solution is prepared：From 3- aminopropyl triethoxysilane coupling agents, according to silane coupler： Ethanol：Water is 20：70：10 ratio is configured；

B. silica gel solution is configured：Mesh number from superfine silicon dioxide micro mist is 5000, and average grain diameter is 2.5 μm, is being stirred Mix and water, dispersant Span-80 and silicon powder are added in bucket, wherein Span-80 dosages are 0.5%, and silicon powder dosage is 10%（It is For the mass percent of water）, 30min is first stirred with 2500r/min speed, then stirred with 750r/min speed 20min, obtain the silica gel solution of favorable dispersibility；

C. the styrene-acrylic emulsion that solid content is 25% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:4 ratio The silica gel solution configured is added, then adds the good silane coupler solution of 1% configuration（For silica gel solution and phenylpropyl alcohol breast The mass percent of liquor）, then it is 8 that the pH value of ammoniacal liquor regulation solution, which is added dropwise, stirs 1 h with 500r/min speed, stops Stirring discharging, produces alkaline-resisting glue；

（2）Prepare film expanding foam solution

It is SAS from foaming agent, foam stabilizer is silicones polyethers emulsion, in the alkaline-resisting glue respectively 1% foaming agent and 1% foam stabilizer is added, stirring makes the system viscosity of alkaline-resisting glue be 1500mPa s, then sent out via foam Raw device ventilation foaming, it is 850r/min to control frothing head rotating speed, air inflow is reached 78%, system blowing ratio reaches 1:5, prepare It is 0.15g/cm to obtain expansion density³Film expanding foam solution；

3) film is processed

The base fabric debatching is delivered to coating machine, film expanding foam solution is delivered into base fabric face via the delivery pipe of coating machine Layer, the size of coated weight is controlled using scraper, it is 0.7mm to control distance between scraper and base fabric, and it is 40g/m to make coated weight², apply Film speed is 15m/min；

4) baking and curing

Base fabric after the film is sent into baking oven, using the drying mode of sectional, four section drying temperatures difference For：90 DEG C, 96 DEG C, 101 DEG C, 111 DEG C, the baking and curing time is 4min；

5）Press bubble processing

By the base fabric after the baking and curing, go out after baking oven to be subjected at once a pair by hard roller and soft roller group into chilling roller pressure Bubble processing, for coated surface towards hard roller, pressure bubble pressure while control is 58N/cm during roll compacting², pressure bubble after wind and obtain surface it is smooth, gram Weight is 220 g/m²Building form cloth.

Embodiment 4：

1）The preparation of base fabric

Fineness from PP fine count fibers is 4D, the fineness of length 51mm, PP coarse denier fiber is 10D, length 65mm, PP/PE low melting point bicomponent fibers fineness is 2D, length 51mm, PP fine-denier and thick denier and the mixed ratio of PP/PE three For 35：50:15, PP fine count fibers, PP coarse denier fibers and PP/PE low melting point bicomponent fibers surface oil content are 0.8%；

Mainly preparation technology parameter is：It is 180r/min to weigh and feed cotton hired roughneck rotating speed in cotton process, brad curtain linear velocity For 12.2 m/min；It is 350r/min that porcupine opener Beater Speed is controlled in secondary shredding process, sawtooth drum opener Beater Speed is 720 r/min；Control pressure hopper shredding hired roughneck rotating speed is 420r/min in air pressure cotton box feeds cotton process, It is 20 r/min to go out cotton roller rotating speed, and the upper hopper air pressure of air pressure cotton box is 3MPa, and lower hopper air pressure is 3.5MPa, makes sheet cotton face Density irregularity rate CV values reach 6%；It is 880m/min to comb and the linear velocity of cylinder is adjusted in air-laid process, working roll linear speed It is 150m/min to spend for 68m/min, angle stripper linear velocity, and it is 950r/min that air-flow stripping controls leeward machine speed when netting, and makes unit Suction airstream volume reaches 3.5g/m containing fine amount³, lapper convoying curtain speed is 4m/min；

Pre- thorn, two main thorns together are employed in pinprick reinforcement process to have a shave with together with thorn, and pricker type is selected wherein piercing in advance Number be 15 × 18 × 38 × 3.5 R222 G3027, needle plate bestock is 4000 pieces/m, control punch frequency for 580 thorns/ Min, depth of needling is set to reach 10.5mm；Main thorn selects the R222 G3037 of pricker model 15 × 18 × 40 × 3, and needle plate plants pin Density is 7200 pieces/m, and it is 850 thorns/min to control punch frequency, depth of needling is reached 8mm；Pricker model is selected in acupuncture of having a shave For 15 × 18 × 42 × 3 R111 G3017, needle plate bestock is 16000 pieces/m, and it is 1350 thorns/min to control punch frequency, Depth of needling is set to reach 3 mm；Speed during pinprick reinforcement is 3.5 m/min, is made again by cutting and rolling step after reinforcing Into base fabric coiled material, obtained base fabric grammes per square metre is 250g/m²；

2）The preparation of film expanding foam solution

（1）The preparation of alkaline-resisting glue

A. silane coupler solution is prepared：From 3- aminopropyl triethoxysilane coupling agents, according to silane coupler： Ethanol：Water is 21： 71：8 ratio is configured；

B. silica gel solution is configured：Mesh number from superfine silicon dioxide micro mist is 7000, and average grain diameter is 1.5 μm, is being stirred Mix and water, dispersant Span-80 and silicon powder are added in bucket, wherein Span-80 dosages are 0.8%, and silicon powder dosage is 15%（It is For the mass percent of water）, 30min is first stirred with 2500r/min speed, then stirred with 750r/min speed 20min, obtain the silica gel solution of favorable dispersibility；

C. the styrene-acrylic emulsion that solid content is 35% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:3 ratio Example adds the silica gel solution configured, then adds the good silane coupler solution of 1.5% configuration（For silica gel solution and benzene The mass percent of acrylic emulsion solution）, then it is 9 that the pH value of ammoniacal liquor regulation solution, which is added dropwise, stirs 2h with 500r/min speed, stops Only stirring discharging, produces alkaline-resisting glue；

（2）Prepare film expanding foam solution

It is isooctanol sodium sulphate from foaming agent, foam stabilizer is silicones polyethers emulsion, in the alkaline-resisting glue respectively 2% foaming agent and 2% foam stabilizer is added, stirring makes the system viscosity of alkaline-resisting glue be 1800mPa s, then sent out via foam Raw device ventilation foaming, it is 1000r/min to control frothing head rotating speed, air inflow is reached 85%, system blowing ratio reaches 1:7, prepare It is 0.2g/cm to obtain expansion density³Between film expanding foam solution；

3) film is processed

The base fabric debatching is delivered to coating machine, film expanding foam solution is delivered into base fabric face via the delivery pipe of coating machine Layer, the size of coated weight is controlled using scraper, it is 1.2mm to control distance between scraper and base fabric, and it is 60g/m to make coated weight², Film speed is 12m/min；

4) baking and curing

Base fabric after the film is sent into baking oven, using the drying mode of sectional, four section drying temperatures difference For：92 DEG C, 98 DEG C, 106 DEG C, 1160 DEG C, the baking and curing time is 3min；

5）Press bubble processing

By the base fabric after the baking and curing, go out after baking oven to be subjected at once a pair by hard roller and soft roller group into chilling roller pressure Bubble processing, for coated surface towards hard roller, pressure bubble pressure while control is 70 N/cm during roll compacting², pressure bubble after wind and obtain surface it is smooth, Grammes per square metre is 310 g/m²Building form cloth.

Embodiment 5：

1）The preparation of base fabric

Fineness from PP fine count fibers is 7D, the fineness of length 51mm, PP coarse denier fiber is 11D, length 65mm, PP/PE low melting point bicomponent fibers fineness is 3D, length 51mm, PP fine-denier and thick denier and the mixed ratio of PP/PE three For 40：40:20, PP fine count fibers, PP coarse denier fibers and PP/PE low melting point bicomponent fibers surface oil content are 0.75%；

Mainly preparation technology parameter is：It is 190 r/min to weigh and feed cotton hired roughneck rotating speed in cotton process, brad curtain linear velocity For 14.4 m/min；It is 450 r/min that porcupine opener Beater Speed is controlled in secondary shredding process, sawtooth drum opener Beater Speed is 800 r/min；Control pressure hopper shredding hired roughneck rotating speed is 500 r/min in air pressure cotton box feeds cotton process, It is 25 r/min to go out cotton roller rotating speed, and the upper hopper air pressure of air pressure cotton box is 4 MPa, and lower hopper air pressure is 4.5MPa, makes sheet cotton Surface density irregularity CV values reach 4%；It is 950 m/min to comb and the linear velocity of cylinder is adjusted in air-laid process, working roll line Speed is 78 m/min, and angle stripper linear velocity is 155 m/min, and it is 1000 r/min that air-flow stripping controls leeward machine speed when netting, Unit suction airstream volume is set to reach 4 g/m containing fine amount³, lapper convoying curtain speed is 5 m/min；

Pre- thorn, two main thorns together are employed in pinprick reinforcement process to have a shave with together with thorn, and pricker type is selected wherein piercing in advance Number be 15 × 18 × 38 × 3.5 R222 G3027, needle plate bestock is 5000 pieces/m, control punch frequency for 650 thorns/ Min, depth of needling is set to reach 11.5mm；Main thorn selects the R222 G3037 of pricker model 15 × 18 × 40 × 3, and needle plate plants pin Density is 8000 pieces/m, and it is 950 thorns/min to control punch frequency, depth of needling is reached 9mm；Pricker type is selected in acupuncture of having a shave Number be 15 × 18 × 42 × 3 R111 G3017, needle plate bestock is 16000 pieces/m, control punch frequency for 1400 thorns/ Min, depth of needling is set to reach 3 mm；Speed during pinprick reinforcement is 3.5m/min, again by cutting and rolling step after reinforcing And base fabric coiled material is made, obtained base fabric grammes per square metre is 270g/m²；

2）The preparation of film expanding foam solution

（1）The preparation of alkaline-resisting glue

A. silane coupler solution is prepared：It is coupled from N- (2- aminoethyls) -3- aminopropyltriethoxies dimethoxysilane Agent, according to silane coupler：Methanol：Water is 22：72：6 ratio is configured；

B. silica gel solution is configured：Mesh number from superfine silicon dioxide micro mist is 8000, and average grain diameter is 1 μm, is being stirred Water, dispersant AEO and silicon powder are added in bucket, wherein AEO dosage is 1%, silicon powder Dosage is 20%（It is the mass percent for water）, 30min is first stirred with 2500r/min speed, then with 750r/min Speed stirring 20min, obtain the silica gel solution of favorable dispersibility；

C. the styrene-acrylic emulsion that solid content is 40% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:2 ratio The silica gel solution configured is added, then adds the good silane coupler solution of 2% configuration（For silica gel solution and phenylpropyl alcohol breast The mass percent of liquor）, then it is 10 that the pH value of ammoniacal liquor regulation solution, which is added dropwise, stirs 2h with 500r/min speed, stops Stirring discharging, produces alkaline-resisting glue；

（2）Prepare film expanding foam solution

It is that foam stabilizer is Stearyl Amine, in the alkaline-resisting glue in dodecyldimethylammonium hydroxide inner salt from foaming agent 3% foaming agent and 3% foam stabilizer are separately added into, stirring makes the system viscosity of alkaline-resisting glue be 2000mPa s, then via bubble The ventilation foaming of foam generator, it is 1400r/min to control frothing head rotating speed, air inflow is reached 90%, system blowing ratio reaches 1:9, It is 0.25g/cm that expansion density, which is prepared,³Film expanding foam solution；

3) film is processed

The base fabric debatching is delivered to coating machine, film expanding foam solution is delivered into base fabric face via the delivery pipe of coating machine Layer, the size of coated weight is controlled using scraper, it is 1.8mm to control distance between scraper and base fabric, and it is 80g/m to make coated weight², apply Film speed is 10m/min；

4) baking and curing

Base fabric after the film is sent into baking oven, using the drying mode of sectional, four section drying temperatures difference For：95 DEG C, 100 DEG C, 110 DEG C, 120 DEG C, the baking and curing time is 2min；

5）Press bubble processing

By the base fabric after the baking and curing, go out after baking oven to be subjected at once a pair by hard roller and soft roller group into chilling roller pressure Bubble processing, for coated surface towards hard roller, pressure bubble pressure while control is 70 N/cm during roll compacting², pressure bubble after wind and obtain surface it is smooth, Grammes per square metre is 350g/m²Building form cloth.

Thickness, pliability to the building form cloth for being not likely to produce fold prepared by above-mentioned 3,4,5 three embodiments （Deflection）, trap tear strength, average pore size, gas permeability, water transmitting ability, water absorbing capacity tested respectively, its result such as table 1 It is shown.The standard and judgment of wherein method of testing reference is as follows：

（1）Thickness

Using YG（B）141D type digital textile thickness gauge thickness, method of testing are held according to GB/T3820-1997 standards OK.

（2）Pliability

Using FSY131 pliability analyzers, method of testing performs according to GB/T8942-2002 standards.

(3) trapezoidal tearing strength

Using YG (B) 026H type imported electronic fabric strength testers, method of testing performs according to GB/T 3917.3-2009 standards.

(4) trapezoidal tearing strength

Using GY2 type bubble test platforms, method of testing performs according to QC/T 794-2007 standards.

（5）Gas permeability

Using YG461D digital textile air permeation volume gauges, method of testing performs according to GB/T5453-1997 standards.

(6) water transmitting ability

Using YG871 capillary effect analyzers, tested according to standard ZB W 04019-1990.Test cloth specimen specification 25mm* 300mm, measure are immersed in the water the suction head value after 5min.

(7) water absorbing capacity

Clip size is 100mm × 100mm sample, the original quality after weighing as sample.Sample is immersed in pure Underwater,（60± 1）Sample is taken out after s, vertical hanging, is dripped（120± 1）Weighed after s, as the sample matter after water suction Amount, water absorption rate is calculated according to formula：

Water absorption rate（%）=[(quality-sample original quality after sample water suction）/ sample original quality] × 100

Table 1：Building form cloth the performance test results

Wherein, pliability is used for representing the ability that building form cloth resists extraneous concrete lateral pressure, i.e. deflection, uses Fold-modified ability is resisted to characterize building form cloth, its value is more big more is not likely to produce fold, and deflection is bigger.From table 1 It can be seen that the building form cloth for being not likely to produce fold prepared by embodiment 3-5 has higher softness values, wherein embodiment 5 Softness values it is maximum, show most to be less likely to occur Folding Deformation；In addition in terms of the numerical value of average pore size, the numerical value of embodiment 5 Minimum, this is closely related with the selection of fibrous raw material in base fabric preparation process and foam coating thickness, also illustrate that embodiment 5 exists While with preferable drainability, water retention property is also very good；Simultaneously it can also be seen that due to being used on base fabric top layer in table Foaming coating process, and with the addition of micron silica superfine powder so that embodiment 3-5 is respectively provided with preferably water suction and protected It is water-based；On the other hand cold calendering technology is employed after the coating process that foams so that scrim surfaces are smooth, and rub resistance ability increases By force, reusable number is greatly improved.Above-mentioned experimental data illustrates the mould for building for being not likely to produce fold of the present invention Plate cloth is that one kind has good deflection, intensity, average pore size is small, draining and water holding capacity are good, surfacing is smooth and repeats The New Building Materials for the excellent specific properties such as access times are more, will have extraordinary application prospect in building material field.

The embodiment of the present invention additionally provides a kind of building form cloth, and the building form cloth is implemented to illustrate by any of the above-described The preparation method of the building form cloth gone out is prepared, and the building form cloth is by above-mentioned base fabric and film expanding foam solution group Into.

The present invention obtains that surface is smooth, the back side is crude and edge by doing coating problems to the scrim surfaces of pinprick reinforcement Thickness direction is covered with the building form cloth of water guide micropore, while the two-component PP/ of low melting point is added in base fabric fibrous raw material PE fibers, the deflection and tensile strength of base fabric are further increased, building form cloth can be avoided in laying and using process In there is the problem of fold, obtained New Building Materials have concurrently good good deflection and intensity, surface smooth abrasion-proof, water guide and Good water-retaining property, simultaneously because the use of intumescent coating technology reduces the dosage of fibrous raw material in base fabric, production cost is reduced, Solve existing formwork cloth and fold, surface easily occur and easily get wet mud and damage building surface and production cost is high asks Topic.

Although being described in detail above with general explanation, embodiment and experiment to the present invention, But on the basis of the present invention, it can be modified or improved, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims

1. a kind of preparation method of building form cloth, it is characterised in that methods described includes：

By fibrous raw material through weighing feed cotton, secondary shredding, air pressure cotton box feed cotton, comb air lay, pinprick reinforcement, cutting and The preparation section of winding, is prepared base fabric, and the fibrous raw material is respectively PP fine count fibers, PP coarse denier fibers and PP/PE low Fusing point bicomponent fibers, wherein the fineness of the PP fine count fibers and the PP coarse denier fibers is 3-11D, length 51-65mm, The PP/PE low melting points bicomponent fibers fineness is 1.5-3D, length 38-51mm, the PP fine count fibers, the thick denier of the PP The mixed ratio of fiber and the PP/PE low melting points bicomponent fibers three are 30-40：40-60:10-20；

Prepare film expanding foam solution；

The base fabric debatching is delivered to coating machine, the film expanding foam solution is delivered into the base fabric via the delivery pipe of coating machine Surface layer carries out film, the size of coated weight is controlled using scraper, it is 0.7- to control distance between the scraper and the base fabric 1.8mm, make the coated weight of the film expanding foam solution in 40-80g/m²Between, film speed is 10-15m/min；

The base fabric after film is sent into baking oven, baking and curing, the drying of four sections are carried out using the drying mode of sectional Temperature is respectively：90-95 DEG C, 96-100 DEG C, 101-110 DEG C, 111-120 DEG C, the baking and curing time is 1-4min；

By the base fabric after baking and curing, go out after baking oven pass through by a pair by hard roller and soft roller group into the pressure bubble of chilling roller handle, The coated surface of the base fabric is towards hard roller during roll compacting, and pressure bubble pressure while control is in 58-70N/cm²Between, it is wound after pressure bubble It is 250-380g/m to grammes per square metre²Building form cloth.

2. according to the method for claim 1, it is characterised in that

In cotton process is fed in the weighing, equal cotton hired roughneck rotating speed is 165-190 r/min, and brad curtain linear velocity is 6.9-14.4 m/min；

In the secondary shredding process, porcupine opener Beater Speed is between 300-450 r/min, sawtooth drum opener Beater Speed is between 650-800 r/min；

In the air pressure cotton box feeds cotton process, air pressure cotton box shredding hired roughneck rotating speed goes out cotton roller between 350-500 r/min Rotating speed is between 14-25 r/min, and the upper hopper air pressure of the air pressure cotton box is between 2-4 MPa, and lower hopper air pressure is in 2.5- Between 4.5MPa, sheet cotton surface density irregularity CV values are made to reach 4-8%；

In the combing air-laid process, the linear velocity of cylinder is 810-950 m/min, and working roll linear velocity is 60-78 M/min, angle stripper linear velocity are 140-155 m/min, and fan speed between 850-1000 r/min, makes air-flow stripping net at present Unit suction airstream volume reaches 3-4 g/m containing fine amount³, lapper convoying curtain speed is 3-5 m/min；

Thorn that the pinprick reinforcement process employs one of pre- thorn, two main thorns are had a shave with together with, wherein pre- pierce selects pricker model For 15 × 18 × 38 × 3.5 R222 G3027, needle plate bestock is between 3500-5000 pieces/m, and punch frequency is in 500- Between 650 thorns/min, depth of needling is set to reach 9.5-11.5mm；Main thorn selects the R222 of pricker model 15 × 18 × 40 × 3 G3037, for needle plate bestock between 6500-8000 pieces/m, punch frequency reaches depth of needling in 800-950 thorns/min 7-9mm；The R111 G3017 of pricker model 15 × 18 × 42 × 3 are selected in acupuncture of having a shave, and needle plate bestock is in 15000- Between 16000 pieces/m, punch frequency makes depth of needling reach 2-3 mm between 1300-1400 thorns/min；The pinprick reinforcement When speed be 3-3.5 m/min, the grammes per square metre of the obtained base fabric is 180-270g/m²。

3. according to the method for claim 1, it is characterised in that the film expanding foam solution for preparing includes：

According to silane coupler：Alcohol：Water is（20-22）：（70-72）：（6-10）Ratio prepared, obtain silane coupler Solution, the silane coupler are 3- aminopropyl triethoxysilanes or N- (2- aminoethyls) -3- aminopropyltriethoxy dimethoxys At least one of silane, the alcohol are at least one of methanol or ethanol；

Water, dispersant and silicon powder are added in agitator, the dispersant is in Span-80 or AEO At least one, dispersant described in the agitator are 0.5-1% for the mass percent of water, and the silicon powder is for water Mass percent is 10-20%, first stirs 30min with 2500r/min speed, is then stirred with 750r/min speed 20min, obtain the silica gel solution of favorable dispersibility；

The styrene-acrylic emulsion that solid content is 25-40% is put into size barrel, according to Ludox：Styrene-acrylic emulsion is 1:2-4 ratio adds Enter the silica gel solution, then add the silane coupler solution, the silane coupler solution is molten for the silica gel The mass percent of liquid and the styrene-acrylic emulsion solution is 1-2%, then be added dropwise ammoniacal liquor regulation solution pH value be 8-10, with 500r/ After min speed stirring 1-2h, stop stirring discharging, obtain alkaline-resisting glue；

1-3% foaming agent and 1-3% foam stabilizer are separately added into the alkaline-resisting glue, stirring makes the body of the alkaline-resisting glue Be viscosity between 1500-2000mPa s, then ventilate and foam via foam maker, frothing head turns in the foaming process Speed is between 850-1400r/min, and air inflow reaches 78-90%, and system blowing ratio reaches 1:5-1:9, expansion density is prepared In 0.15-0.25g/cm³Between film expanding foam solution.

4. according to the method for claim 1, it is characterised in that the PP fine count fibers, PP coarse denier fibers and described Contain hydrophilic finish, oil content 0.75-0.85% in PP/PE low melting point bicomponent fibers surface.

5. according to the method for claim 3, it is characterised in that the silicon powder is superfine silicon dioxide micro mist, and mesh number is 5000-8000, average grain diameter are 1-2.5 μm.

6. according to the method for claim 3, it is characterised in that the foaming agent is SAS, isooctanol sulfuric acid At least one of sodium or dodecyldimethylammonium hydroxide inner salt, the foam stabilizer are in silicones polyethers emulsion or Stearyl Amine It is at least one.

7. a kind of building form cloth, it is characterised in that the building form cloth is built by any described in claim 1-6 Build and be prepared with the preparation method of formwork cloth, the building form cloth is made up of the base fabric and the film expanding foam solution.