CN114474955A - Preparation method of bonded modular carpet - Google Patents
Preparation method of bonded modular carpet Download PDFInfo
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- CN114474955A CN114474955A CN202210120221.7A CN202210120221A CN114474955A CN 114474955 A CN114474955 A CN 114474955A CN 202210120221 A CN202210120221 A CN 202210120221A CN 114474955 A CN114474955 A CN 114474955A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G27/00—Floor fabrics; Fastenings therefor
- A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
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Abstract
The invention relates to the technical field of modular carpets, in particular to a preparation method of a bonded modular carpet. The preparation method provided by the invention comprises the following steps: coating a bonding material on the surface of the bottom back layer to form a bonding layer on the surface of the bottom back layer; rolling a blank blanket on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: the blank blanket is conveyed to the surface of the bonding layer of the cloth rubber bottom back layer on the arc-shaped roller surface of the driving roller by the driving roller, and is subjected to composite lamination by the driving roller and the driven roller, and then turns along the arc-shaped roller surface of the driving roller, so that blanks on the upper surfaces of the bonding layers with the same length are enabled to be positionedThe length of the blanket layer is greater than that of the bottom back layer positioned on the lower surface of the bonding layer; and cooling and shaping the semi-finished product to obtain the bonded modular carpet. The preparation method provided by the invention has the advantages that the basis weight of the backing non-woven fabric is 200-1500 g/m2When the high-density non-woven fabric is used, the prepared bonded modular carpet has no warpage and can be cut into any shape and size.
Description
Technical Field
The invention relates to the technical field of modular carpets, in particular to a preparation method of a bonded modular carpet.
Background
The bonded split carpet is a ground material widely applied to commercial and educational spaces such as office buildings, airports, schools, chain hotels and the like, and is a ground decoration material integrating sound insulation, dust prevention and space aesthetic feeling. Adhesively joined modular carpet tiles generally comprise a carpet layer, an adhesive layer and a backing layer.
The production process of the currently common adhesive splicing carpet generally adopts a traditional process mode of 'surface covering' to add a certain amount of filler into an adhesive material (such as high-temperature asphalt) and mix the mixture to the fluidity and the temperature suitable for use, the mixture is conveyed to the back of a gluing blank carpet through a pipeline, the adhesive material is strickled off by a scraping knife, then glass fiber mesh cloth (or not) is added, a bottom back layer (generally backing non-woven fabric and PU coiled material) is covered, and the carpet is cut into small carpet pieces with required size after cooling and shaping. The present technique produces the modular carpet, the most of the adhesive material is asphalt, when the gram weight of the backing non-woven fabric is less than 150g/m2In the process, due to the plastic deformation performance of the asphalt, the asphalt can be flatly laid on the ground after being flatly laid. But when the gram weight of the backing non-woven fabric is more than 150g/m2In the production process, the shrinkage of the upper layer is larger than that of the lower layer due to the high-temperature bonding layer because the bonded modular carpet is a product with an upper layer and a lower layer. The produced split carpet has obvious warping, which affects the split effect and the use safety.
However, the comfort degree of people to the foot feeling is higher and higher, the gram weight of the backing non-woven fabric is also increased, and the room-temperature gram weight of the backing non-woven fabric of the place bonding modular carpet with high requirements exceeds 1000g/m2At this time, the traditional 'face-covering bottom' process mode is adopted to produce the modular carpet, the product is easy to warp, and the market demand for the quality of the bonded modular carpet can not be met.
Disclosure of Invention
In view of this, the present invention provides a method of making bonded carpet tiles. The preparation method provided by the invention is suitable for backing non-woven with the gram weight of more than 150g/m2The high-density non-woven fabric has no warp of the prepared bonded modular carpet and can be cut into any shapeThe shape and size.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a bonded modular carpet, which comprises the following steps:
coating the adhesive material on the surface of the bottom back layer to form an adhesive layer on the surface of the bottom back layer to obtain a cloth rubber bottom back layer;
rolling a blank blanket on the surface of the bonding layer, and forming a blank blanket layer on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: conveying the cloth rubber bottom back layer by a driving roller, conveying the blank blanket to the surface of the bonding layer of the cloth rubber bottom back layer positioned on the arc-shaped roller surface of the driving roller by a driven roller, and after the blank blanket is compounded and laminated by the driving roller and the driven roller, turning along the arc-shaped roller surface of the driving roller so that the length of the blank blanket layer positioned on the upper surface of the bonding layer with the same length is greater than that of the bottom back layer positioned on the lower surface of the bonding layer;
and cooling and shaping the semi-finished product to obtain the bonded modular carpet.
Preferably, the steering angle is 45-90 degrees.
Preferably, the roller surface of the driving roller is a rough surface, the diameter of the driving roller is 30-40 cm, the roller surface of the driven roller is a smooth surface, and the diameter of the driven roller is smaller than that of the driving roller.
Preferably, the thickness of the bottom back layer is 2-5 mm.
Preferably, the thickness of the bonding layer is 1-1.5 mm.
Preferably, the length of the blanket layer on the upper surface of the bonding layer with the same length is 1-2.5% longer than that of the bottom back layer on the lower surface of the bonding layer.
Preferably, the horizontal drawing pressure of the driving roller and the driven roller during the composite lamination is 15-20N.
Preferably, the rotating speed of the driving roller for conveying the cloth rubber bottom back layer is 3-20 m/min.
Preferably, the temperature of the bonding material is 140-165 ℃ during coating.
Preferably, the semi-finished product further comprises a fiberglass scrim in the bonding layer, the rolling further comprises: the glass fiber non-woven fabric and the blank blanket are simultaneously conveyed to the surface of the bonding layer of the cloth rubber bottom back layer of the arc-shaped roller surface of the driving roller by the same driven roller, and the glass fiber gridding cloth is in contact with the surface of the bonding layer.
The invention provides a preparation method of a bonded modular carpet, which comprises the following steps: coating the adhesive material on the surface of the bottom back layer to form an adhesive layer on the surface of the bottom back layer to obtain a cloth rubber bottom back layer; rolling a blank blanket on the surface of the bonding layer, and forming a blank blanket layer on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: conveying a cloth rubber bottom back layer by a driving roller, conveying the blank blanket to the surface of a bonding layer of the cloth rubber bottom back layer positioned on the arc-shaped roller surface of the driving roller by a driven roller, and after the blank blanket is compounded and laminated by the driving roller and the driven roller, turning along the arc-shaped roller surface of the driving roller to ensure that the length of the blank blanket layer positioned on the upper surface of the bonding layer with the same length is greater than that of the bottom back layer positioned on the lower surface of the bonding layer; and cooling and shaping the semi-finished product to obtain the bonded modular carpet. According to the preparation method provided by the invention, a bottom-covering surface process is adopted, firstly, the bonding material is coated on the surface of the bottom and back layers to form the bonding layer, and compared with a surface-covering bottom process, the bonding material can be contacted with the bottom and back layers for a longer time, so that the contact time of the bonding material and the embryo blanket is reduced, and the influence on the embryo blanket layer when the bonding material is cooled and shrunk is reduced; meanwhile, the preparation method provided by the invention turns along the arc-shaped roller surface of the driving roller after the bonding layer and the embryo carpet are compounded and laminated on the arc-shaped roller surface of the driving roller, so that the length of the embryo carpet layer on the upper surface of the bonding layer with the same length is larger than that of the bottom back layer on the lower surface of the bonding layer, when the bonding layer is cooled and shrunk, the shrinkage deformation of the upper surface of the bonding layer is larger than that of the lower surface, and the embryo carpet layer is longer than the bottom back layer, so that the splicing carpet can still be prevented from warping and can be cut into any shape and size. Therefore, the preparation method provided by the invention has the basis weight of 200-1500 g/m2When the high-density non-woven fabric is used, the prepared bonded modular carpet has no warpage and can be cut into any shape and size.
Drawings
FIG. 1 is a schematic diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic representation of a bonded modular carpet construction according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating detection of a pumping force according to an embodiment of the present invention;
1-driving roller, 2-driven roller, 3-backing layer, 4-bonding material, 5-scraper, 6-fiberglass fiber mesh cloth, 7-blank blanket, 8-support frame, 9-cold plate, 10-semi-finished product, 11-cooling box, 12-ground, 13-first guide roller, 14-second guide roller, 15-third guide roller, 16-fourth guide roller, 17-fifth guide roller and 18-sixth guide roller.
Detailed Description
The invention provides a preparation method of a bonded modular carpet, which comprises the following steps:
coating the adhesive material on the surface of the bottom back layer to form an adhesive layer on the surface of the bottom back layer to obtain a cloth rubber bottom back layer;
rolling a blank blanket on the surface of the bonding layer, and forming a blank blanket layer on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: conveying a cloth rubber bottom back layer by a driving roller, conveying the blank blanket to the surface of a bonding layer of the cloth rubber bottom back layer positioned on the arc-shaped roller surface of the driving roller by a driven roller, and after the blank blanket is compounded and laminated by the driving roller and the driven roller, turning along the arc-shaped roller surface of the driving roller to ensure that the length of the blank blanket layer positioned on the upper surface of the bonding layer with the same length is greater than that of the bottom back layer positioned on the lower surface of the bonding layer;
and cooling and shaping the semi-finished product to obtain the bonded modular carpet.
In the present invention, the starting materials are all commercially available products well known to those skilled in the art, unless otherwise specified.
The adhesive material is coated on the surface of the bottom back layer, and the adhesive layer is formed on the surface of the bottom back layer, so that the cloth rubber bottom back layer is obtained.
In the present invention, the binder material is preferably an asphalt-based binder material.
In the present invention, the binding material preferably includes asphalt, an inorganic filler and an asphalt modifier.
In a particular embodiment of the invention, the bitumen is particularly preferably No. 30 bitumen.
In a particular embodiment of the invention, the inorganic filler is particularly preferably calcium carbonate.
In the present invention, the particle size of the calcium carbonate is preferably 53 to 74 μm, and more preferably 61 μm.
In a specific embodiment of the present invention, the asphalt modifier is particularly preferably Mobil 8880 resin.
In the present invention, the mass ratio of the asphalt, the inorganic filler and the asphalt modifier is preferably 12:20: 1.
In the present invention, the method for preparing the binding material preferably includes the steps of:
carrying out first mixing on the asphalt and an asphalt modifier at a first temperature to obtain modified asphalt;
and carrying out second mixing on the modified asphalt and the inorganic filler at a second temperature to obtain the binding material.
The invention carries out first mixing on the asphalt and the asphalt modifier at a first temperature to obtain the modified asphalt. In the invention, the first temperature is preferably 190-220 ℃, and more preferably 190 ℃. In the invention, the first mixing is preferably carried out under the condition of stirring, and the rotation speed of the stirring is preferably 15-30 r/min. In the invention, the heat preservation time of the first mixing is preferably 45-60 min.
After the modified asphalt is obtained, the modified asphalt and the inorganic filler are subjected to second mixing at a second temperature to obtain the binding material. In the invention, the second temperature is preferably 155-160 ℃, the second mixing is preferably carried out under the condition of stirring, the rotation speed of the stirring is preferably 60-120 r/min, and the heat preservation time of the second mixing is preferably 45-60 min.
In the present invention, the backing layer preferably includes a backing nonwoven fabric layer and a backing layer provided on a surface of the backing nonwoven fabric layer.
In the present invention, the back backing layer is preferably a Polyurethane (PU) layer.
In the invention, the thickness of the PU layer is preferably 2.5-4.5 mm, and particularly preferably 2.5mm, 3.5mm and 4.5 mm.
In the present invention, the PU layer preferably employs a recycled PU material.
In the specific embodiment of the invention, the PU layer preferably adopts leftover materials generated in the production of household products, so that the reutilization of the waste materials is realized, the thickness uniformity of the bonded modular carpet product is increased, the cost of the product is reduced, and the environment is protected.
In the present invention, the grammage of the backing nonwoven fabric layer is preferably 200g/m2～1500g/m2Non-woven fabric, more preferably 11000g/m2。
In the present invention, the thickness of the back layer is preferably 3 to 5mm, and particularly preferably 3mm, 4mm and 5 mm.
The present invention preferably coats the backing layer surface of the backing layer with the adhesive material.
The invention preferably conveys the bonding material to the surface of the backing material by a conveying pipeline for coating.
In the invention, the temperature of the bonding material is preferably 140-165 ℃ during coating, and more preferably 145-160 ℃.
In the embodiment of the present invention, the coating mode is preferably blade coating, and in the present invention, the traveling speed of the backing material during blade coating is preferably 3 to 20m/min, and more preferably 5 to 15 m/min.
In the present invention, the thickness of the adhesive layer is preferably 1 to 1.5mm, and more preferably 1.1 to 1.5 mm.
After obtaining the cloth rubber bottom back layer, rolling a blank blanket on the surface of the bonding layer, and forming a blank blanket layer on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: the blank blanket is conveyed to the surface of the bonding layer of the cloth rubber bottom back layer on the arc-shaped roller surface of the driving roller by the driving roller, and is subjected to composite lamination by the driving roller and the driven roller, and then turns along the arc-shaped roller surface of the driving roller, so that the length of the blank blanket layer on the upper surface of the bonding layer with the same length is larger than that of the bottom back layer on the lower surface of the bonding layer.
In the invention, the embryonic blanket preferably comprises a gluing layer and a tufted non-woven fabric layer arranged on the surface of the gluing layer.
The tufted non-woven fabric layer comprises non-woven fabric and a pile surface layer on the surface of the non-woven fabric.
In the present invention, the pile layer is preferably a nylon yarn layer.
In the invention, the thickness of the embryonic blanket is preferably 5-7 mm.
The invention preferably bonds the glue coating layer of the embryonic blanket on the surface of the bonding layer.
In the present invention, the driving roller surface is preferably a rough surface.
In the present invention, the diameter of the driving roller is preferably 30 to 40cm, and more preferably 32 to 35 cm.
In the invention, the rotating speed of the driving roller when conveying the cloth rubber backing layer is preferably 3-20 m/min, and more preferably 5-15 m/min.
In the present invention, the roller surface of the driven roller is preferably a smooth surface, and the diameter of the driven roller is preferably smaller than the diameter of the drive roller.
In a particular embodiment of the invention, the diameter of the driven roller is preferably 25 cm.
In the present invention, the horizontal suction pressure of the driving roller and the driven roller during the composite lamination is preferably 15 to 20N, and more preferably 16.5 to 18N.
In the present invention, the angle of the turning is preferably 45 to 90 °, and more preferably 90 °.
In the present invention, the length of the carpet layer on the upper surface of the adhesive layer per unit length is preferably 1 to 2.5% greater than the length of the back layer on the lower surface, and more preferably 1.5 to 2%.
In the invention, the semi-finished product preferably further comprises glass fiber mesh cloth positioned in the bonding layer, the glass fiber non-woven fabric and the embryo blanket are simultaneously conveyed to the surface of the bonding layer of the cloth rubber backing layer on the arc-shaped roller surface of the driving roller by the same driven roller, and the glass fiber mesh cloth is contacted with the surface of the bonding layer.
The glass fiber non-woven fabric is pressed into the bonding layer through composite lamination of a driving roller and a driven roller.
After obtaining the semi-finished product, the invention cools and shapes the semi-finished product to obtain the bonding splicing carpet.
In the invention, the cooling and shaping are preferably carried out in a cooling box, and the invention has no special requirement on the specific implementation process of the cooling and shaping.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Pumping No. 30 asphalt at the temperature of 190-220 ℃ into a stirring cylinder, starting a stirring paddle, stirring at the rotating speed of 15-30 r/min, slowly adding Mofu 8880 resin, stirring and melting for 45-60 min, after the Mofu 8880 resin is melted, adding 61 mu m calcium carbonate at the stirring speed of 60-120 r/min while changing the stirring speed, and stirring at the heat preservation temperature of 155-160 ℃ for 45-60 min to obtain a bonding material;
the production device shown in the figure 1 is adopted to prepare the bonding spliced carpet, a bottom back layer (a backing non-woven fabric with the gram weight of 1100 g/square meter and a PU bottom back lining layer with the thickness of 2.5mm arranged on the surface of the backing non-woven fabric) with the thickness of 5mm sequentially passes through a third guide roller 15, a fourth guide roller 16 and a fifth guide roller 17, a bonding material (the temperature is 155-160 ℃) conveyed by a conveying pipeline is received on a support frame 8, a scraper 5 scrapes and coats a bonding layer with the thickness of 1-1.5 mm, the conveying speed of the bottom back layer is 10m/min during scraping, a driving roller conveys the bottom back layer to the rough arc roller surface of a driving roller, a driven roller simultaneously conveys a glass fiber mesh cloth 6 and a blank carpet 7 to the arc roller surface of the driving roller to be compounded and laminated with the bonding layer, the horizontal drawing pressure of the driving roller and the driven roller is 20N, and the glass fiber mesh cloth and the blank carpet are deflected by the driving roller and the sixth guide roller at 1890 DEG and pass through a cold plate 9, a second guide roller 14, The first guide roller 13 is conveyed to the cooling box 11 for cooling and shaping, and then cut into bonding modular carpet with required size, and the bonding modular carpet has no warpage.
Example 2
Pumping No. 30 asphalt at the temperature of 190-220 ℃ into a stirring cylinder, starting a stirring paddle, stirring at the rotating speed of 15-30 r/min, slowly adding Mofu 8880 resin, stirring and melting for 45-60 min, after the Mofu 8880 resin is melted, adding 61 mu m calcium carbonate at the stirring speed of 60-120 r/min while changing the stirring speed, and stirring at the heat preservation temperature of 155-160 ℃ for 45-60 min to obtain a bonding material;
the production device shown in the figure 1 is adopted to prepare the bonding spliced carpet, a bottom back layer (a backing non-woven fabric with the gram weight of 1500 g/square meter and a PU bottom back lining layer with the thickness of 2.5mm arranged on the surface of the backing non-woven fabric) with the thickness of 4mm sequentially passes through a third guide roller 15, a fourth guide roller 16 and a fifth guide roller 17, a bonding material (the temperature is 155-160 ℃) conveyed by a conveying pipeline is received on a support frame 8, a scraper 5 scrapes and coats a bonding layer with the thickness of 1-1.5 mm, the conveying speed of the bottom back layer is 15m/min during scraping, a driving roller conveys the bottom back layer to the rough arc roller surface of a driving roller, a driven roller simultaneously conveys a glass fiber mesh cloth 6 and a blank carpet 7 to the arc roller surface of the driving roller to be compounded and laminated with the bonding layer, the horizontal drawing pressure of the driving roller and the driven roller is 20N, and the glass fiber mesh cloth and the blank carpet are deflected by the driving roller and the sixth guide roller at 1890 DEG and pass through a cold plate 9, a second guide roller 14, The first guide roller 13 is conveyed to the cooling box 11 for cooling and shaping, and then cut into bonding modular carpet with required size, and the bonding modular carpet has no warpage.
Example 2
Pumping No. 30 asphalt at the temperature of 190-220 ℃ into a stirring cylinder, starting a stirring paddle, stirring at the rotating speed of 15-30 r/min, slowly adding Mofu 8880 resin, stirring and melting for 45-60 min, after the Mofu 8880 resin is melted, adding 61 mu m calcium carbonate at the stirring speed of 60-120 r/min while changing the stirring speed, and stirring at the heat preservation temperature of 155-160 ℃ for 45-60 min to obtain a bonding material;
the production device shown in the figure 1 is adopted to prepare the bonding spliced carpet, a bottom back layer (a backing non-woven fabric with the gram weight of 800 g/square meter and a PU bottom back lining layer with the thickness of 2.5mm arranged on the surface of the backing non-woven fabric) with the thickness of 5mm passes through a third guide roller 15, a fourth guide roller 16 and a fifth guide roller 17 in sequence, a bonding material (the temperature is 155-160 ℃) conveyed by a conveying pipeline is received on a support frame 8, a scraper 5 scrapes and coats a bonding layer with the thickness of 1-1.5 mm, the conveying speed of the bottom back layer is 5m/min during scraping, a driving roller conveys the bottom back layer to the rough arc roller surface of a driving roller, a driven roller conveys a glass fiber mesh cloth 6 and a blank carpet 7 to the arc roller surface of the driving roller simultaneously to be laminated with the bonding layer, the horizontal drawing pressure of the driving roller and the driven roller is 20N, and the glass fiber mesh cloth and the blank carpet are deflected by the driving roller and the sixth guide roller at 1890 DEG and pass through a cold plate 9, a second guide roller 14, The first guide roller 13 is conveyed to the cooling box 11 for cooling and shaping, and then cut into bonding modular carpet with required size, and the bonding modular carpet has no warpage.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method of making a bonded modular carpet comprising the steps of:
coating the adhesive material on the surface of the bottom back layer to form an adhesive layer on the surface of the bottom back layer to obtain a cloth rubber bottom back layer;
rolling a blank blanket on the surface of the bonding layer, and forming a blank blanket layer on the surface of the bonding layer to obtain a semi-finished product; the rolling comprises: conveying the cloth rubber bottom back layer by a driving roller, conveying the blank blanket to the surface of the bonding layer of the cloth rubber bottom back layer positioned on the arc-shaped roller surface of the driving roller by a driven roller, and after the blank blanket is compounded and laminated by the driving roller and the driven roller, turning along the arc-shaped roller surface of the driving roller so that the length of the blank blanket layer positioned on the upper surface of the bonding layer with the same length is greater than that of the bottom back layer positioned on the lower surface of the bonding layer;
and cooling and shaping the semi-finished product to obtain the bonded modular carpet.
2. The method of claim 1, wherein the angle of the turn is 45 to 90 °.
3. The production method according to claim 1, wherein the roller surface of the driving roller is a rough surface, the diameter of the driving roller is 30 to 40cm, the roller surface of the driven roller is a smooth surface, and the diameter of the driven roller is smaller than the diameter of the driving roller.
4. The method of manufacturing according to claim 1, wherein the back layer has a thickness of 2 to 5 mm.
5. The method according to claim 1, wherein the adhesive layer has a thickness of 1 to 1.5 mm.
6. The method as claimed in claim 1, wherein the length of the blanket layer on the upper surface of the adhesive layer with the same length is 1-2.5% longer than the length of the back layer on the lower surface of the adhesive layer.
7. The production method according to claim 1, wherein the driving roller and the driven roller have a horizontal suction pressure of 15 to 20N when the composite laminate is formed.
8. The manufacturing method according to claim 1, wherein the rotation speed of the driving roller for conveying the cloth rubber backing layer is 3 to 20 m/min.
9. The method according to claim 1, wherein the temperature of the binder is 140 to 165 ℃ during the coating.
10. The method of any one of claims 1 to 9, wherein the semi-finished product further comprises a fiberglass mesh cloth in the bonding layer, and the rolling further comprises: the glass fiber non-woven fabric and the blank blanket are simultaneously conveyed to the surface of the bonding layer of the cloth rubber bottom back layer of the arc-shaped roller surface of the driving roller by the same driven roller, and the glass fiber gridding cloth is in contact with the surface of the bonding layer.
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| 程凌敏等编著: "《食品加工机械》", vol. 1, 中国轻工业出版社, pages: 82 - 83 * |
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