CN113373699B

CN113373699B - Manufacturing process of antibacterial three-proofing foaming fabric

Info

Publication number: CN113373699B
Application number: CN202110563890.7A
Authority: CN
Inventors: 沈濂; 金曦; 蒋帆; 朱江峰
Original assignee: ZHEJIANG PIYI TEXTILE CO Ltd
Current assignee: ZHEJIANG PIYI TEXTILE CO Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-04-15
Anticipated expiration: 2041-05-24
Also published as: CN113373699A

Abstract

The invention provides a manufacturing process of an antibacterial three-proofing foaming fabric, which is characterized by comprising the following steps of: A. two-in-one transfer thermoprinting; B. fitting; C. washing with water; D. drying; E. and (4) foaming and coating.

Description

Manufacturing process of antibacterial three-proofing foaming fabric

Technical Field

The invention belongs to the technical field of fabrics, and relates to a manufacturing process of an antibacterial three-proofing foaming fabric.

Background

With the continuous development of polyurethane coating fabrics, more functional products are developed, such as aging resistance, antifouling property, fire resistance, antibacterial property and the like, the products are endowed with multiple functions, and the high added value is also obvious.

The new crown epidemic situation outbreaked in 2020 brings people's attention to public health. For this reason, the research and production of antibacterial textiles are becoming the current topic of focus and development direction again. The research and production of antibacterial textiles become the current topic of focus and direction of development again. At present, polyurethane coatings are generally formed by a direct coating method, polyurethane slurry is used as the coatings, the production process is complex, and multiple functionalities such as antibiosis, flame retardance, water resistance, oil resistance, stain resistance and the like cannot be realized at the same time. In actual production, nano antibacterial finishing is easy to aggregate to influence the antibacterial finishing effect. Therefore, it is necessary to design a manufacturing process of the antibacterial three-proofing foamed fabric.

Disclosure of Invention

The invention aims to provide a manufacturing process of an antibacterial three-proofing foaming fabric aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme: the manufacturing process of the antibacterial three-proofing foaming fabric is characterized by comprising the following steps of: A. two-in-one transfer thermoprinting; B. fitting; C. washing with water; D. drying; E. and (4) foaming and coating.

The step A specifically comprises the following steps: coating the first color paste on a carrier release film, drying the carrier release film by a plurality of groups of drying ovens at low temperature, coating the second color paste on the dried first color paste layer, transferring and hot-stamping the coating of the carrier release film onto a color blank fabric, wherein the color blank fabric is dyed polyester fabric, and the equipment used in the step is a two-in-one hot-stamping machine.

The step B specifically comprises the following steps: and (3) attaching a bottom fabric and the color blank fabric, wherein the bottom fabric is one of polyester fabric, cotton cloth and polyester cotton cloth.

The step C is specifically as follows: and (3) putting the well-fitted fabric into a washing finishing machine for washing, and putting the three-proofing agent and the antibacterial agent into water, wherein the washing frequency is twice.

The step D is specifically as follows: and (3) putting the washed fabric into a channel type drying oven, and controlling the drying temperature at 100-120 ℃.

The step E specifically comprises the following steps: stirring various raw materials of the foaming coating by a coating stirrer, injecting air while stirring, controlling the foaming multiplying power to be 1.5-2.5, coating the foaming coating on the bottom surface material of the semi-finished product by a coating device, and drying the bottom surface material of the semi-finished product again, wherein the drying temperature is 120 plus materials and the drying speed is controlled to be 20-30M/min.

The foaming paint is water-based polyurethane foaming paint.

The coating stirrer comprises a base, an upper portion of the base is provided with an open-ended stirring barrel, the stirring barrel is detachably connected with the barrel cover, the upper portion of the stirring barrel is provided with a small cover which is convenient to open, a discharge port is formed in the lower portion of the stirring barrel, the discharge port is provided with a valve, the discharge port is connected with a feed pipe, a material pump is arranged on the feed pipe, a stirring piece is arranged in the stirring barrel in a rotating mode, the stirring piece is connected with a power structure capable of driving the stirring piece to rotate, an auxiliary rod is horizontally fixed on the stirring piece, a sliding groove is formed in the auxiliary rod, a linkage seat is arranged in the sliding groove, a gas injection pipe is vertically fixed on the linkage seat, a plurality of gas holes are formed in the gas injection pipe, the upper end of the gas injection pipe is connected with a gas pump through a gas guide pipe, a guide pillar is further installed on the linkage seat, guide rings are installed on the barrel cover through a plurality of positioning rods, ring grooves capable of enabling the guide pillars to move back and forth are formed in the guide rings, and back, and forth guide pillars are arranged in the ring grooves.

In adding the agitator with required raw materials, drive the stirring piece through power structure and rotate, the stirring piece stirs the raw materials, simultaneously, through the air pump to the intraductal air delivery of gas injection pipe, can carry the raw materials with the air inside, cooperate along with the ring channel on guide pillar and the guide ring, make the gas injection pipe can the back and forth movement to can make raw materials and air intensive mixing, obtain required waterborne polyurethane foaming coating, convenient to use.

The power structure comprises a speed reducing motor, a driving wheel, a driven wheel, a belt and a driving shaft, wherein the speed reducing motor is fixed on the base, an output shaft of the speed reducing motor is vertically arranged, the driving wheel is fixed at the end part of the output shaft of the speed reducing motor, the middle part of the driving shaft is in rotary sealing connection with the bottom of the stirring barrel, the upper end of the driving shaft is connected with the stirring piece, and the driven wheel is connected with the lower end of the driving shaft.

The driving wheel is driven to rotate by the speed reducing motor, the main belt wheel drives the driven wheel to rotate by the belt, and the driven wheel drives the driving shaft to rotate, so that the driving shaft can rotate.

And the guide post is also provided with a roller.

The barrel cover is connected with a driving structure capable of driving the barrel cover to move up and down.

The barrel cover can be driven to move up and down through the driving structure.

The driving structure comprises a stand column, a guide rail, a sliding block and an air cylinder, wherein the stand column is fixed on the base, the guide rail is vertically fixed on the stand column, the sliding block is arranged on the guide rail, the air cylinder is fixed on the stand column, a piston rod of the air cylinder is vertically downward, and the barrel cover is fixed on the sliding block.

The cylinder drives the sliding block to move up and down along the guide rail, and the sliding block drives the barrel cover to move up and down, so that the barrel cover can move up and down.

And two ends of the guide rail are provided with limiting blocks.

Still have four stirring portions of semicircular in shape on the agitator, and stirring portion is evenly distributed, is provided with respectively in the stirring portion and assists the stirring piece, and the shape of assisting the stirring piece is X-shaped, assists the stirring leaf and links to each other with a driving motor respectively, has a plurality of broken swoves that are triangle-shaped on the inner wall of stirring portion, still has the water conservancy diversion strip in the stirring portion.

When stirring a messenger raw materials stirring, under the effect of centrifugal force, on the agitator inner wall was got rid of more easily to the material of large granule, under the auxiliary action of water conservancy diversion strip, entered into stirring portion department, made its reverse flow through assisting the stirring leaf to the striking is on broken sword, thereby can carry out broken and local supplementary stirring to the raw materials, supplementary effectual.

Two unification thermoprinting machines include first frame, install the thermoprinting mechanism on first frame and be used for clearing up the carrier from the clearance mechanism of type membrane and stock surface dust, clearance mechanism includes two sets of air cocks, negative-pressure air fan, connects the gas pipeline between air cock and negative-pressure air fan, and one of them group of air cock is used for attracting the carrier from the dust on type membrane surface, and another group's air cock is used for attracting the dust on stock surface.

Before carrying out the thermoprint pressfitting, negative-pressure air fan starts, is in the negative pressure state around the air cock, and the carrier is in along the air admission air cock of type membrane and stock surface, then carries to negative-pressure air fan department and discharges along the gas transmission pipeline to effectively clear up the carrier from the dust on type membrane and stock surface, be favorable to improving the thermoprint quality.

The cleaning mechanism further comprises a first brush roller and a first driving piece, wherein the first brush roller abuts against the surface of the release film of the carrier, the first driving piece is used for driving the first brush roller to rotate, the first brush roller is rotatably connected to the first rack around the axis of the first brush roller, and the first brush roller is used for lifting dust on the surface of the release film of the carrier.

When utilizing the air cock to absorb dust or fibrous impurity, the adhesive force of part dust or fibrous impurity is stronger, and the suction of air current is less, and this part dust, impurity are difficult to clear up, and butt in the carrier is from the surface of type membrane when first brush roller pivoted to can raise dust, the impurity that adhesive force is stronger, make dust, impurity break away from the carrier and leave the type membrane, improve the clearance effect of clearance mechanism to dust, impurity.

The cleaning mechanism further comprises a second brush roller which is abutted to the surface of the printing stock and a second driving piece which is used for driving the second brush roller to rotate, the second brush roller is rotatably connected to the first rack around the axis of the second brush roller, and the second brush roller is used for lifting dust on the surface of the printing stock.

When the second brush roller rotates, dust and impurities on the surface of a printing stock can be raised, and the cleaning effect of the cleaning mechanism on the dust and the impurities is further improved.

The gas transmission pipeline is including being responsible for and connecting in the two branch pipes of being responsible for, two sets of air faucets set up respectively on two branch pipes, be responsible for including connecting in negative-pressure air fan's the section of giving vent to anger and from the carrier from the linkage segment that type membrane extends, the one end that negative-pressure air fan was kept away from to the section of giving vent to anger is connected in the intermediate position of linkage segment, the branch pipe is including the section of breathing in and the regulation section of fixed connection in the section of breathing in that is used for installing the air cock, the regulation section of two branch pipes is pegged graft the cooperation with the both ends of linkage segment respectively, be equipped with the locating part on regulation section and/or the linkage segment, the locating part is used for carrying out the axial spacingly to linkage segment and regulation section.

The regulation section of branch pipe is pegged graft each other with the linkage segment of being responsible for to the extending direction of linkage segment is from the carrier from type membrane towards the stock, consequently can be through the grafting length of adjusting linkage segment and regulation section, thereby adjusts the branch pipe and the carrier from the distance of type membrane, stock, changes the air cock promptly and the carrier from the distance of type membrane, stock, improves the controllability of air cock, is favorable to improving the clearance effect.

The adjusting section is inserted into the connecting section, the limiting part penetrates through the connecting section along the radial direction of the connecting section and abuts against the adjusting section, and the limiting part is in threaded connection with the connecting section.

The locating part utilizes the axial force butt regulation section that threaded connection produced to the relative displacement takes place for restriction regulation section and linkage segment, simple structure, easy to carry out.

And sealing rings are arranged at two ends of the connecting section.

The sealing ring is used for improving the connection sealing performance of the adjusting section and the connecting section, and is favorable for reducing the air pressure leakage of the air conveying pipeline.

And a filter screen bag for filtering and collecting dust is arranged in the gas transmission pipeline.

The dust or the impurities move in the air transmission pipeline along with the air flow, and due to the filtering effect of the filter screen bag, the dust or the impurities are retained in the filter screen bag, so that the dust or the impurities are reduced to be discharged to the working environment from the negative pressure fan as far as possible.

The filter screen bag is detachably arranged in the gas transmission pipeline.

The filter screen bag is convenient for workers to detach and clean dust and impurities in the filter screen bag in time so as to be used continuously.

Washing collator including first washing case, second wash the case and be used for carrying the surface fabric to first washing case and the second lead cloth subassembly that washs the case, lead cloth subassembly including all setting up first squeeze roll and the second squeeze roll that washs the case top in first, form the extrusion passageway that is used for supplying the surface fabric to pass through between first squeeze roll and the second squeeze roll, the extrusion passageway is used for carrying out the moisture extrusion to the surface fabric through first washing case.

After the fabric is cleaned by the first cleaning box, dirty water in the first cleaning box is adsorbed on the fabric, the fabric is extruded by the first squeezing roller and the second squeezing roller, and the dirty water is separated from the fabric and flows back to the first cleaning box below, so that the dirty water is effectively reduced and enters the second cleaning box along with the fabric, the water in the second cleaning box is prevented from being polluted as far as possible, and the fabric cleaning effect is improved.

The second squeeze roll rotates around the axis of the second squeeze roll and rotates around a straight line positioned outside the second squeeze roll, the first squeeze roll only has a degree of freedom rotating around the axis of the first squeeze roll, the cloth guide assembly further comprises an elastic piece, the elastic piece is connected to the second squeeze roll, and the elastic piece is used for pushing the second squeeze roll to rotate and abut against the first squeeze roll.

Under the effect of elastic component, the second squeeze roll butt in first squeeze roll, the surface fabric thickness that the actual can be looked at to the interval of first squeeze roll and second squeeze roll is adjusted, is favorable to extrudeing the surface fabric of different thickness.

The second squeezing roller is abutted to the first squeezing roller and is positioned below the axis of the first squeezing roller.

When the surface fabric from bottom to top passes through the extrusion passageway, because take place relative friction between surface fabric and the second squeeze roll, the second squeeze roll can receive the surface fabric and exert and ascending frictional force, then the second squeeze roll has the trend of upward movement, and the first squeeze roll can be supported tightly upwards to the second squeeze roll, and the pressure grow that the surface fabric received is favorable to improving the extrusion effect to the surface fabric.

The cleaning assembly comprises a third brush roller which is used for abutting against one side of the fabric and rolling relative to the fabric, and the third brush roller is arranged above the first cleaning box in a rotating mode around the axis of the third brush roller.

After the fabric is washed by the first washing box, dirty water is adsorbed on the fabric, solid dirt such as impurities and fibers can be attached to the surface of the fabric, the impurities and the fibers on the surface of the fabric can be cleaned when the third brush roller rotates, the solid dirt is prevented from entering the second washing box as far as possible, and the fabric washing effect is improved.

The cleaning assembly further comprises a fourth brush roller which is used for being abutted to the other side of the fabric and is arranged in a rolling mode relative to the fabric, and the fourth brush roller is arranged above the first cleaning box in a rotating mode around the axis of the fourth brush roller.

The fourth brush roller is used for cleaning impurities and fibers attached to the other side of the fabric, so that the fabric cleaning effect is improved.

The cleaning assembly further comprises a second driving motor used for driving the third brush roller and the fourth brush roller to rotate, a first gear is connected to the third brush roller in a clamped mode, a second gear is connected to the fourth brush roller in a clamped mode and meshed with the first gear, a driving gear is connected to an output shaft of the second driving motor in a clamped mode, and the driving gear is meshed with the first gear or the second gear.

The second driving motor can drive the third brush roller and the fourth brush roller to rotate simultaneously, and the brush device is simple in structure and convenient to implement.

The cloth guide assembly comprises a plurality of cloth guide rollers arranged in the first cleaning box and the second cleaning box, the cloth guide rollers are rotatably arranged around the axes of the cloth guide rollers, and the third brush roller and the cloth guide rollers which are positioned on the same side of the fabric as the third brush roller are opposite in rotating direction.

The conveying direction of the fabric is the same as the rotating linear speed direction of the cloth guide roller, and the rotating linear speed directions of the third brush roller and the fourth brush roller are opposite to the conveying direction of the fabric, so that the fabric cleaning effect of the third brush roller and the fourth brush roller can be improved.

And protective shells are arranged on the outer sides of the first gear, the second gear, the driving gear and the second driving motor.

Impurity, fibre that can avoid breaking away from the surface fabric surface as far as possible drop on driving medium such as first gear, second gear on the one hand, reduce the condition that transmission process took place to block, on the other hand avoids external moisture to drop to second driving motor as far as possible, improves second driving motor's waterproof nature.

The fabric cleaning device is characterized in that a floating plate is arranged between the first cleaning box and the second cleaning box, a tensioning roller used for assisting in tensioning of fabric is installed on the floating plate, the side part of the floating plate is connected with the first cleaning box and the side wall of the second cleaning box in a sealing mode through a rubber sheet, the bottom of the floating plate is connected with the first cleaning box and the bottom of the second cleaning box in a sealing mode through an elastic sheet, a plurality of springs are arranged in the elastic sheet, arc-shaped flow guide sheets are installed on two sides of the upper part of the floating plate, a linkage sheet I is installed at the end part, close to the floating plate, of a cloth guide roller in the first cleaning box, a power gear is installed at the end part, close to the floating plate, of the second cleaning box, a linkage sheet II is installed on the second cleaning box in a rotating mode, a reversing gear meshed with the power gear is installed on the linkage sheet II, and a collection box is further arranged between the first cleaning box and the second cleaning box.

Servo motor is when making the surface fabric remove, the surface fabric is the discontinuity removal, therefore the rate of tension of surface fabric is constantly changing, provide an elasticity to the tensioning roller through the flexure strip, the tensioning roller can carry out floating tensioning to the surface fabric, thereby ensure that the rate of tension of surface fabric remains the unanimity all the time, simultaneously, linkage piece one and linkage piece two can be with first washing incasement debris to the propelling movement of floating plate department with the second washing incasement, and move arc water conservancy diversion piece along with the floating plate and move downwards repeatedly, collect debris in the collection thing box, supplementary effectual.

Compared with the prior art, the manufacturing process of the antibacterial three-proofing foaming fabric has the advantages that:

the invention realizes the controllable expansion ratio of the coating with the volume of 1.5-2.5 times, which is very beneficial to the controllability of the thickness of the coating; in addition, after the coating foaming technology is adopted, the coating amount of the waterborne polyurethane can be greatly reduced, the heating and drying time is shortened, the production efficiency is improved, the wastewater discharge amount is reduced, and the method is a brand-new energy-saving and environment-friendly technology for the waterborne polyurethane coating.

Drawings

FIG. 1 is a schematic diagram of the steps of the present fabrication process.

FIG. 2 is a schematic plan view of the paint shaker.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic plan view of a guide ring in a paint mixer.

FIG. 5 is a schematic perspective view of a paint mixer with portions broken away.

FIG. 6 is a schematic plan view of a portion of the paint mixer with portions broken away.

Fig. 7 is a schematic perspective view of a two-in-one stamping machine.

FIG. 8 is a schematic plane structure diagram of the two-in-one stamping machine.

FIG. 9 is an exploded view of the cleaning mechanism of the two-in-one stamping machine.

FIG. 10 is a schematic perspective view of a finisher;

FIG. 11 is a schematic plan view of a water finisher;

FIG. 12 is a schematic perspective view of a portion of the finisher with portions removed.

FIG. 13 is a schematic plan view of a portion of the finisher removed from the wash.

In the figure, 1, a base; 2. a driven wheel; 3. a belt; 4. a driving wheel; 5. a reduction motor; 6. a drive shaft; 7. a stirring member; 8. a gas injection pipe; 9. a column; 10. a cylinder; 11. a slider; 12. a guide rail; 13. an air duct; 14. an air pump; 15. a barrel cover; 16. positioning a rod; 17. a guide ring; 17a, an annular groove; 18. a stirring barrel; 18a and a discharge hole; 18b, a stirring part; 18b1, crushing knife; 19. a valve; 20. a material pump; 21. a feed pipe; 22. a linkage seat; 23. an auxiliary lever; 23a, a chute; 24. a guide post; 25. a roller; 26. a flow guide strip; 27. auxiliary stirring blades; 28. a first frame; 29. a first unwinding roller; 30. a first wind-up roll; 31. a second unwinding roller; 32. a second wind-up roll; 33. a guide roller; 34. a first drive motor; 35. a printing roller; 36. an ink roller; 37. an ink cartridge; 38. a rubber roller; 39. a drying box; 40. an electric heating tube; 41. an abutment roller; 42. an air tap; 43. a negative pressure fan; 44. an air outlet section; 45. a connecting section; 46. a limiting member; 47. a seal ring; 48. a suction section; 49. an adjustment section; 50. a first brush roller; 51. a second brush roller; 52. a first driving member; 53. a second driving member; 54. a box cover; 55. a filter screen bag; 56. installing a plug; 57. a carrier release film; 58. a substrate; 59. a second frame; 61. a rotating shaft; 62. a support ear; 63. an elastic member; 64. a protective shell; 65. a first cleaning tank; 66. a second cleaning tank; 67. a first squeeze roll; 68. a second squeeze roll; 69. a third unwinding roller; 70. a third wind-up roll; 71. a cloth guide roller; 72. a servo motor; 73. a third brush roller; 74. a fourth brush roller; 75. a second drive motor; 76. a first gear; 77. a second gear; 78. a driving gear; 79. a linkage piece I; 80. an article collecting box; 81. a spring; 82. an elastic sheet; 83. a power gear; 84. a reversing gear; 85. a second linkage sheet; 86. a floating plate; 87. a tension roller; 88. arc-shaped flow deflector.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the manufacturing process of the antibacterial three-proofing foaming fabric comprises the following steps: A. two-in-one transfer thermoprinting; B. fitting; C. washing with water; D. drying; E. and (4) foaming and coating.

The step A specifically comprises the following steps: coating the first color paste on a carrier release film, drying a plurality of groups of drying ovens at low temperature, coating the second color paste on the dried first color paste layer, transferring and hot-stamping the coating of the carrier release film onto a color blank fabric, wherein the color blank fabric is dyed polyester fabric, and the equipment used in the step is a two-in-one hot-stamping machine; in the embodiment, the first color paste and the second color paste are commercially available products; the two-in-one transfer hot stamping process is introduced, the original two-step transfer hot stamping process is combined into one, and the hot stamping work of transferring the same carrier release film and two printing coatings at one time is realized; greatly simplifying the manufacturing steps and the flow and endowing the coating fabric with more colorful colors.

The step B specifically comprises the following steps: the bottom fabric is attached to the color blank fabric, the bottom fabric is one of polyester fabric, cotton fabric and polyester cotton fabric, and in this embodiment, the bottom fabric is polyester cotton fabric.

The step C is specifically as follows: the bonded fabric is placed into a washing finishing machine for washing, and a three-proofing agent and an antibacterial agent are placed into water, wherein the washing frequency is twice, in the embodiment, the three-proofing agent and the antibacterial agent are both commercially available auxiliary agents, and the pH value needs to be adjusted according to the actual condition, so that the coexistence stability of the three-proofing agent and the antibacterial agent is promoted, and the fabric is endowed with excellent three-proofing and antibacterial effects; the technology not only finishes three-proofing and antibacterial finishing in the washing process, eliminates the complicated step of independent finishing in the traditional process, but also finishes the molding of the imitation leather style of the fabric by the cooperative finishing of the washing method.

The step D is specifically as follows: the washed fabric is placed into a channel type drying oven, the drying temperature is controlled to be 120 ℃, in the embodiment, the washed fabric is placed into the channel type drying oven, and the drying temperature is controlled to be 110 ℃.

The step E specifically comprises the following steps: stirring various raw materials of the foaming coating by a coating stirrer, injecting air while stirring, controlling the foaming multiplying power to be 1.5-2.5, coating the foaming coating on the bottom fabric by a coating device, drying the bottom fabric again, controlling the drying temperature to be 120-130 ℃, controlling the drying speed to be 20-30M/min, in the embodiment, stirring various raw materials of the foaming coating by the coating stirrer, injecting air while stirring, controlling the foaming multiplying power to be 1.8, coating the foaming coating on the bottom fabric by the coating device, drying the bottom fabric again, controlling the drying temperature to be 130 ℃ and controlling the drying speed to be 30M/min.

The foaming paint is aqueous polyurethane foaming paint, and in the embodiment, the aqueous polyurethane foaming paint is prepared by adopting the existing formula on the market.

As shown in fig. 2-6, the paint mixer includes a base 1, a mixing barrel 18 with an opening at the upper part is fixed on the base 1, in this embodiment, the mixing barrel 18 is fixed on the base 1 by means of bolt connection; the stirring barrel 18 is detachably connected with the barrel cover 15, a small cover convenient to open is arranged on the upper portion of the stirring barrel 18, a discharge port 18a is formed in the lower portion of the stirring barrel 18, a valve 19 is arranged at the discharge port 18a, the discharge port 18a is further connected with a feed pipe 21, a material pump 20 is arranged on the feed pipe 21, a stirring piece 7 is rotatably arranged in the stirring barrel 18, the stirring piece 7 is connected with a power structure capable of driving the stirring piece to rotate, an auxiliary rod 23 is horizontally fixed on the stirring piece 7, a sliding groove 23a is formed in the auxiliary rod 23, a linkage seat 22 is arranged in the sliding groove 23a, a gas injection pipe 8 is vertically fixed on the linkage seat 22, and in the embodiment, the gas injection pipe 8 adopts the existing product available in the market; the gas injection pipe 8 is provided with a plurality of gas holes, the upper end of the gas injection pipe 8 is connected with the air pump 14 through the gas guide pipe 13, the linkage seat 22 is also provided with a guide post 24, the barrel cover 15 is provided with a guide ring 17 through a plurality of positioning rods 16, and in the embodiment, the number of the positioning rods 16 is three; the guide ring 17 is provided with an annular groove 17a which enables the guide post 24 to move back and forth, and the guide post 24 is arranged in the annular groove 17 a.

Add required raw materials in agitator 18, drive stirring 7 through power structure and rotate, stirring 7 stirs the raw materials, and simultaneously, through air pump 14 to gas injection pipe 8 in the air delivery, can carry the air inside the raw materials, cooperate with ring channel 17a on guide pillar 24 and the guide ring 17, make gas injection pipe 8 can the back and forth movement, thereby can make raw materials and air intensive mixing, obtain required waterborne polyurethane foaming coating, convenient to use.

The power structure comprises a speed reducing motor 5, a driving wheel 4, a driven wheel 2, a belt 3 and a driving shaft 6, wherein the speed reducing motor 5 is fixed on the base 1, and in the embodiment, the speed reducing motor 5 is fixed on the base 1 in a bolt connection mode; and the output shaft of gear motor 5 sets up vertically, and action wheel 4 is fixed at the output shaft tip of gear motor 5, and the bottom of drive shaft 6 middle part and agitator 18 rotates sealing connection, and drive shaft 6 upper end links to each other with stirring 7, and from the driving wheel 2 and the lower extreme of drive shaft 6 links to each other.

The driving wheel 4 is driven to rotate through the speed reduction motor 5, the main belt wheel drives the driven wheel 2 to rotate through the belt 3, the driven wheel 2 drives the driving shaft 6 to rotate, and therefore the driving shaft 6 can be driven to rotate.

The guide post 24 is also provided with a roller 25.

The barrel cover 15 is connected with a driving structure which can drive the barrel cover to move up and down.

The barrel cover 15 can be driven to move up and down through the driving structure.

The driving structure comprises a stand column 9, a guide rail 12, a sliding block 11 and a cylinder 10, wherein the stand column 9 is fixed on the base 1, the guide rail 12 is vertically fixed on the stand column 9, the sliding block 11 is arranged on the guide rail 12, the cylinder 10 is fixed on the stand column 9, a piston rod of the cylinder 10 is vertically downward, and the barrel cover 15 is fixed on the sliding block 11.

The cylinder 10 drives the sliding block 11 to move up and down along the guide rail 12, and the sliding block 11 drives the barrel cover 15 to move up and down, so that the barrel cover 15 can move up and down.

Both ends of the guide rail 12 are provided with limit blocks.

The stirring barrel 18 is further provided with four semicircular stirring parts 18b, the stirring parts 18b are uniformly distributed, auxiliary stirring blades are respectively arranged in the stirring parts 18b, the auxiliary stirring blades are X-shaped, the auxiliary stirring blades 27 are respectively connected with a driving motor, the inner wall of the stirring part 18b is provided with a plurality of triangular crushing blades 18b1, and the stirring part 18b is further provided with a flow guide strip 26.

When stirring 7 makes the raw materials stirring, under the effect of centrifugal force, on the agitator 18 inner wall was got rid of more easily to the material of large granule, under the auxiliary action of water conservancy diversion strip 26, entered into stirring portion 18b department, made its reverse flow through assisting stirring leaf 27 to the striking is on broken sword 18b1, thereby can carry out broken and local supplementary stirring to the raw materials, supplementary effectual.

As shown in fig. 7-9, the two-in-one stamping machine includes a first frame 28, a stamping mechanism mounted on the first frame 28, and a cleaning mechanism for cleaning dust on the surfaces of the carrier release film 57 and the printing material 58; through setting up clearance mechanism to the clearance carrier is from dust, the impurity on type membrane 57 and stock 58 surface, thereby improves the thermoprint effect.

The hot stamping mechanism comprises a winding and unwinding assembly, two groups of printing and dyeing assemblies, a drying assembly and a pressing assembly. The winding and unwinding assembly comprises a first unwinding roller 29 for unwinding the carrier release film 57, a first winding roller 30 for winding the carrier release film 57, a second unwinding roller 31 for unwinding the printing stock 58, a second winding roller 32 for winding the printing stock 58 and three guide rollers 33. First unreeling roller 29, second unreeling roller 31, first wind-up roller 30, second wind-up roller 32 and guide roll 33 all rotate and connect in first frame 28, and the one end of first wind-up roller 30 and second wind-up roller 32 all is connected with a first driving motor 34, and first driving motor 34 fixed mounting is in the lateral wall of first frame 28. The printing and dyeing assembly comprises a printing and dyeing roller 35 and an ink roller 36 arranged below the printing and dyeing roller 35, wherein the printing and dyeing roller 35 and the ink roller 36 are rotatably connected to the first frame 28 around the axes of the printing and dyeing roller 35 and the ink roller 36, and a printing and dyeing channel for the carrier release film 57 to pass through is formed between the printing and dyeing roller 35 and the ink roller 36. One end of the printing roller 35 is connected to an output shaft of a first drive motor 34, and the first drive motor 34 is also fixedly mounted on a side wall of the first frame 28. An ink box 37 is arranged below the ink roller 36, the ink box 37 is used for storing pigment color paste, and the ink box 37 is fixedly arranged on the first frame 28.

The stoving subassembly is located between two sets of printing and dyeing subassemblies, and the mill base of two kinds of different colours is stored respectively to the ink horn 37 of two sets of printing and dyeing subassemblies, is favorable to improving the richness of thermoprint color. The drying assembly comprises two rubber rollers 38, a drying box 39 and an electric heating pipe 40 arranged on the inner wall of the drying box 39, the drying box 39 is fixedly arranged on the first frame 28, the rubber rollers 38 are rotatably connected to the first frame 28 around the axes thereof, and the two rubber rollers 38 are positioned in the drying box 39. The two rubber rollers 38 are arranged in parallel, and a drying channel for the carrier release film 57 to pass through is formed between the two rubber rollers. The press fit assembly comprises two abutting rollers 41, the abutting rollers 41 are connected to the first machine frame 28 in a rotating mode around the axis of the abutting rollers 41, the two abutting rollers 41 are arranged in parallel, and a press fit channel for allowing the carrier release film 57 and the printing stock 58 to pass through simultaneously is formed between the two abutting rollers.

In the whole hot stamping process, the first unwinding roller 29 unwinds the carrier release film 57, the carrier release film 57 is firstly conveyed to the printing and dyeing assembly of the previous group under the winding action of the first winding roller 30, and the printing and dyeing assembly prints the color paste of the first color on the surface of the carrier release film 57; the carrier release film 57 is then conveyed to the drying assembly, and because the rubber rollers 38 are arranged in the drying box 39, the surface temperature of the rubber rollers 38 rises under the baking action of the electric heating tubes 40, and the two rubber rollers 38 dry the carrier release film 57 in a rolling manner to accelerate the drying of the color paste; and then the carrier release film 57 is conveyed to a next printing and dyeing assembly, the printing and dyeing assembly prints the color paste of the second color on the surface of the carrier release film 57, the carrier release film 57 is conveyed between two abutting rollers 41 of the press fit assembly under the action of the guide roller 33, meanwhile, the printing stock 58 is also conveyed between the two abutting rollers 41, the carrier release film 57 and the printing stock 58 are pressed together by the two abutting rollers 41, and thus, the pattern on the carrier release film 57 is transferred to the surface of the printing stock 58.

The cleaning mechanism is arranged in front of the pressing component and is used for carrying out ash cleaning treatment on the carrier release film 57 and the printing stock 58 after printing and dyeing are finished. The cleaning mechanism comprises two groups of air nozzles 42, a negative pressure fan 43 and an air pipeline connected between the air nozzles 42 and the negative pressure fan 43, wherein one group of air nozzles 42 is used for attracting dust on the surface of the carrier release film 57, and the other group of air nozzles 42 is used for attracting dust on the surface of the printing stock 58. Mainly to the surface fabric thermoprint, the stock 58 is the surface fabric promptly, before the carrier is from type membrane 57 and stock 58 pressfitting, thermoprint, negative-pressure air blower 43 starts, and two sets of air cocks 42 are in the air transmission pipeline with the outside air suction, and the carrier is from type membrane 57 and stock 58 surperficial dust, impurity along with the air is sucked in the air transmission pipeline together to discharge from negative-pressure air blower 43 along with the air current, thereby effectively reduce the carrier from type membrane 57 and stock 58 surperficial dust, impurity.

The gas transmission pipeline comprises a main pipe and two branch pipes connected with the main pipe, two groups of gas nozzles 42 are respectively arranged on the two branch pipes, and the number of each group of gas nozzles 42 depends on the actual situation; the main pipe comprises an air outlet section 44 connected to the negative pressure fan 43 and a connecting section 45 extending from the carrier release film 57 to the printing stock 58, one end of the air outlet section 44 far away from the negative pressure fan 43 is connected to the middle position of the connecting section 45, the branch pipes comprise air suction sections 48 used for installing air nozzles 42 and adjusting sections 49 fixedly connected to the air suction sections 48, the air suction sections 48 are perpendicular to the adjusting sections 49, and the adjusting sections 49 of the two branch pipes are respectively inserted into two ends of the connecting section 45.

The connecting section 45 is provided with a limiting member 46, and the limiting member 46 is used for axially limiting the connecting section 45 and the adjusting section 49. The limiting member 46 is a conventional hexagon socket screw, the limiting member 46 penetrates through the connecting section 45 along the radial direction of the connecting section 45 and abuts against the outer wall of the adjusting section 49, and the limiting member 46 is in threaded connection with the connecting section 45. Two ends of the connecting section 45 are respectively provided with two limiting parts 46, and the two limiting parts 46 at the same end of the connecting section 45 are symmetrically arranged around the axis of the connecting section 45. The inner walls of both ends of the connecting section 45 are provided with one annular seal ring 47, and the inner wall of the seal ring 47 abuts against the outer wall of the adjusting section 49, thereby improving airtightness. The negative pressure fan 43 is fixedly installed outside the first frame 28, one end of the air outlet section 44 far away from the connecting section 45 extends to the outside of the first frame 28, and a dust box for collecting dust is arranged at the part of the air outlet section 44 outside the first frame 28. The dust collection box comprises a box body and a box cover 54 arranged at the upper end of the box body, one end of the air outlet section 44 is communicated with the interior of the box body, a filter screen bag 55 is arranged in the box body, and the filter screen bag 55 is sewn by yarns and used for filtering dust and impurities in airflow. The open end of the filter screen bag 55 is fixedly connected with an installation plug 56 in a ring sleeve shape, the outer wall of the installation plug 56 is in transition fit with the inner wall of the main pipe, so that the whole filter screen bag 55 can be detachably installed in the dust collection box, and the negative pressure fan 43 is communicated with the dust collection box through a pipeline.

The cleaning mechanism further comprises a first brush roller 50 abutted to the surface of the carrier release film 57, a second brush roller 51 abutted to the surface of the printing material 58, a first driving member 52 and a second driving member 53, wherein the first brush roller 50 and the second brush roller 51 are connected to the first frame 28 in a rotating mode around the axes of the first brush roller and the second brush roller. The first driving member 52 and the second driving member 53 are both common motors and are mounted on the side wall of the first frame 28, and one end of the first brush roller 50 and one end of the second brush roller 51 are respectively clamped to the output shafts of the first driving member 52 and the second driving member 53; before the air nozzles 42 suck dust from the carrier release film 57 and the printing material 58, the first brush roller 50 and the second brush roller 51 rotate under the driving of the first driving piece 52 and the second driving piece 53, and generate relative friction with the surfaces of the carrier release film 57 and the printing material 58 in the rotating process, so that most of attached dust and impurities are lifted, the dust and the impurities are separated from the carrier release film 57 and the printing material 58, and the dust and the impurities are conveniently sucked into a gas pipeline by the subsequent air nozzles 42.

The principle of the two-in-one thermoprinting machine is as follows: by arranging the cleaning mechanism, dust on the surfaces of the carrier release film 57 and the printing stock 58 can be effectively cleaned, and the hot stamping quality can be improved; through the arrangement of the first brush roller 50 and the second brush roller 51, dust and impurities with strong adhesive force can be lifted, so that the dust and the impurities are separated from the carrier release film 57 or the printing stock 58, and the cleaning effect of the cleaning mechanism on the dust and the impurities is improved; through setting up regulation section 49 and linkage segment 45, regulation section 49 and linkage segment 45 peg graft each other to can adjust the distance that air cock 42 and carrier are from type membrane 57, stock 58, be favorable to improving the clearance effect.

As shown in fig. 10-13, the water washing and finishing machine includes a second frame 59, a first washing tank 65, a second washing tank 66, and a cloth guide assembly for conveying the fabric into the first washing tank 65 and the second washing tank 66, the cloth guide assembly includes a first squeezing roller 67 and a second squeezing roller 68 both disposed above the first washing tank 65, a squeezing channel for the fabric to pass through is formed between the first squeezing roller 67 and the second squeezing roller 68, and the squeezing channel is used for squeezing the fabric passing through the first washing tank 65 by moisture. Through setting up first squeeze roll 67 and second squeeze roll 68, the surface fabric is after first washing case 65 washs, and first squeeze roll 67 and second squeeze roll 68 extrude the surface fabric, and the absorptive dirty water pressurized of surface fabric breaks away from the surface fabric to flow back to in the first washing case 65, thereby reduce the pollution to the second washing case 66 normal water, be favorable to improving the cleaning performance to the surface fabric.

The cloth guide assembly further comprises a third unwinding roller 69, a third winding roller 70 and four cloth guide rollers 71, the third unwinding roller 69 and the third winding roller 70 are connected to the second rack 59 in a rotating mode around the axis of the third unwinding roller and the axis of the third winding roller 70, the two cloth guide rollers 71 are arranged in the first cleaning box 65, the two cloth guide rollers 71 are arranged in the second cleaning box 66, and the third unwinding roller 69, the third winding roller 70 and the cloth guide rollers 71 are all horizontally arranged. Two ends of the cloth guide roller 71 are rotatably connected to the inner wall of the first cleaning box 65 or the inner wall of the second cleaning box 66, one end of the third winding roller 70 is connected with a servo motor 72, and the servo motor 72 is used for driving the third winding roller 70 to rotate, so that the cleaned fabric is wound. The first squeezing roller 67 and the second squeezing roller 68 are installed on the second frame 59 and can rotate around the axes of the first squeezing roller 67 and the second squeezing roller 68, and the first squeezing roller 67 and the second squeezing roller 68 are located above the first cleaning box 65, so that dirty water generated after the fabric is squeezed can flow back to the first cleaning box 65.

Referring to the figures, the second frame 59 is provided with a rotating bracket, the rotating bracket includes a rotating shaft 61 rotatably connected to the second frame 59 and two supporting lugs 62 welded to the outer circumferential surface of the rotating shaft 61, and both ends of the second pressing roller 68 are rotatably connected to the two supporting lugs 62, respectively, so that the second pressing roller 68 can also rotate relative to the second frame 59 about the rotating shaft 61. The rotating shaft 61 is provided with an elastic member 63, the elastic member 63 is a torsion spring 81 sleeved on the outer peripheral surface of the rotating shaft 61, one end of the elastic member 63 is fixedly connected to the rotating shaft 61, and the other end of the elastic member 63 is fixedly connected to the second frame 59. The first pressing roller 67 is rotatably connected at both ends thereof to the second frame 59, so that the first pressing roller 67 has only a degree of freedom of rotation about its own axis, and the second pressing roller 68 has a degree of freedom of rotation about the rotary shaft 61 in addition to the degree of freedom of rotation about its own axis.

The first pressing roller 67 is arranged higher than the second pressing roller 68, the second pressing roller 68 has a tendency of moving to rotate upward around the rotating shaft 61 under the action of the elastic member 63, so that the second pressing roller 68 abuts against the first pressing roller 67, and the position where the second pressing roller 68 abuts against the first pressing roller 67 is located below the axis of the first pressing roller 67. Since the second squeezing roller 68 abuts against the first squeezing roller 67 by means of the elastic member 63, the distance between the first squeezing roller 67 and the second squeezing roller 68 can be automatically adjusted according to the thickness of the fabric. When the fabric passes through the first squeezing roller 67 and the second squeezing roller 68 from bottom to top, because relative friction occurs between the fabric and the second squeezing roller 68, the second squeezing roller 68 can receive upward friction applied by the fabric, the second squeezing roller 68 has a tendency of moving upward, the second squeezing roller 68 can upwards abut against the first squeezing roller 67, the pressure applied by the fabric is increased, and the squeezing effect on the fabric is favorably improved.

The cleaning assembly is used for cleaning impurities on the surface of the fabric and comprises a third brush roller 73, a fourth brush roller 74 and a second driving motor 75, and the third brush roller 73 and the fourth brush roller 74 are connected to the second frame 59 in a rotating mode around the axes of the third brush roller 73 and the fourth brush roller 74. The third brush roller 73 and the fourth brush roller 74 are located between the first cleaning tank 65 and the second squeezing roller 68, are at the same height and are located on both sides of the fabric, and both the third brush roller 73 and the fourth brush roller 74 abut against the fabric and are arranged to roll relative to the fabric. One end of the third brush roller 73 is connected with a first gear 76 in a clamping manner, one end of the fourth brush roller 74 in the same direction is connected with a second gear 77 in a clamping manner, the first gear 76 is meshed with the second gear 77, an output shaft of the second driving motor 75 is connected with a driving gear 78 in a clamping manner, and the driving gear 78 is meshed with the first gear 76 or the second gear 77, so that the second driving motor 75 can drive the third brush roller 73 and the fourth brush roller 74 to rotate simultaneously, the rotating directions of the third brush roller 73 and the fourth brush roller 74 are opposite, and the rotating directions of the third brush roller 73 and the cloth guide roller 71 which is positioned on the same side of the fabric with the third brush roller 73 are opposite.

Under the rotating action of the third winding roller 70, the fabric is conveyed by the fabric guide roller 71, and the fabric guide roller 71 also rotates due to relative friction between the fabric and the fabric guide roller 71 during conveying; if the first squeezing roller 67 and the cloth guide roller 71 which is positioned on the same side of the fabric as the first squeezing roller 67 rotate in opposite directions, the linear speed direction of the rotation of the first squeezing roller 67 is opposite to the conveying direction of the fabric, so that the third brush roller 73 and the fourth brush roller 74 can peel off impurities attached to the surface of the fabric more thoroughly, and the cleaning effect of the fabric is improved.

The second frame 59 is provided with a protective shell 64, and the second driving motor 75, the driving gear 78, the first gear 76 and the second gear 77 are all mounted in the protective shell 64. Impurity, fibre that can avoid on the one hand to break away from the surface fabric surface as far as possible drop on driving medium such as first gear 76, second gear 77, reduce the condition that transmission process took place to block, on the other hand avoids external moisture to drop to second driving motor 75 as far as possible, improves second driving motor 75's waterproof nature.

A floating plate 86 is arranged between the first cleaning box 65 and the second cleaning box 66, a tension roller 87 for assisting the tension of the fabric is arranged on the floating plate 86, the side part of the floating plate 86 is hermetically connected with the side walls of the first cleaning box 65 and the second cleaning box 66 through a rubber sheet, the bottom part of the floating plate 86 is connected with the first cleaning box 65 through an elastic sheet 82, the bottom of the second cleaning box 66 is hermetically connected, a plurality of springs 81 are arranged in the elastic sheet 82, arc-shaped flow deflectors 88 are arranged on two sides of the upper part of the floating plate 86, a first linkage sheet 79 is arranged at the end part of the cloth guide roller 71 close to the floating plate 86 in the first cleaning box 65, a power gear 83 is arranged at the end part of the cloth guide roller 71 close to the floating plate 86 in the second cleaning box 66, a second linkage sheet 85 is further rotatably arranged on the second cleaning box 66, a reversing gear 84 meshed with the power gear 83 is arranged on the second linkage sheet 85, and an object collecting box 80 is further arranged between the first cleaning box 65 and the second cleaning box 66; servo motor 72 is when making the surface fabric remove, the surface fabric is the discontinuity removal, therefore the rate of tension of surface fabric is constantly changing, provide an elasticity to tensioning roller 87 through flexure strip 82, tensioning roller 87 can carry out floating tensioning to the surface fabric, thereby ensure that the rate of tension of surface fabric remains the unanimity all the time, simultaneously, link piece 79 and link piece two 85 can be with the first debris that wash in case 65 and the second washing case 66 to the propelling movement of unsteady board 86 department, and drive arc water conservancy diversion piece 88 along with unsteady board 86 and move down repeatedly, collect debris in album thing box 80, supplementary effectual.

The principle of the water washing finishing machine is as follows: by arranging the first squeezing roller 67 and the second squeezing roller 68, the first squeezing roller 67 and the second squeezing roller 68 squeeze the fabric, dirty water is separated from the fabric and flows back to the first cleaning box 65 below, so that the dirty water entering the second cleaning box 66 along with the fabric is effectively reduced, the water in the second cleaning box 66 is prevented from being polluted as far as possible, and the fabric cleaning effect is improved; by arranging the elastic piece 63, the distance between the first extrusion roller 67 and the second extrusion roller 68 can be adjusted according to the actual thickness of the fabric, so that the fabric with different thicknesses can be extruded; through setting up third brush roller 73 and fourth brush roller 74, can clear up the surperficial impurity of surface fabric, fibre etc. avoid solid filth to get into the second as far as possible and wash case 66 in, be favorable to improving the cleaning performance to the surface fabric.

The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The manufacturing process of the antibacterial three-proofing foaming fabric is characterized by comprising the following steps of: A. two-in-one transfer thermoprinting; B. fitting; C. washing with water; D. drying; E. a foam coating;

the step A specifically comprises the following steps: coating the first color paste on a carrier release film, drying a plurality of groups of drying ovens at low temperature, coating the second color paste on the dried first color paste layer, transferring and hot-stamping the coating of the carrier release film onto a color blank fabric, wherein the color blank fabric is dyed polyester fabric, and the equipment used in the step is a two-in-one hot-stamping machine;

the two-in-one hot stamping machine comprises a first machine frame, a hot stamping mechanism arranged on the first machine frame and a cleaning mechanism used for cleaning the carrier release film and the dust on the surface of the printing stock, wherein the cleaning mechanism comprises two groups of air nozzles, a negative pressure fan and a gas pipeline connected between the air nozzles and the negative pressure fan, one group of air nozzles is used for attracting the dust on the surface of the carrier release film, and the other group of air nozzles is used for attracting the dust on the surface of the printing stock; the cleaning mechanism further comprises a first brush roller abutting against the surface of the carrier release film and a first driving piece for driving the first brush roller to rotate, the first brush roller is rotatably connected to the first rack around the axis of the first brush roller, and the first brush roller is used for lifting dust on the surface of the carrier release film; the cleaning mechanism further comprises a second brush roller which is abutted to the surface of the printing stock and a second driving piece which is used for driving the second brush roller to rotate, the second brush roller is rotatably connected to the first rack around the axis of the second brush roller, and the second brush roller is used for lifting dust on the surface of the printing stock.

2. The manufacturing process of the antibacterial three-proofing foaming fabric according to claim 1, wherein the step B specifically comprises the following steps: and (3) attaching a bottom fabric and the color blank fabric, wherein the bottom fabric is one of polyester fabric, cotton cloth and polyester cotton cloth.

3. The manufacturing process of the antibacterial three-proofing foaming fabric according to claim 1, wherein the step C is specifically as follows: and (3) putting the well-fitted fabric into a washing finishing machine for washing, and putting the three-proofing agent and the antibacterial agent into water, wherein the washing frequency is twice.

4. The manufacturing process of the antibacterial three-proofing foaming fabric according to claim 1, wherein the step D specifically comprises the following steps: and (3) putting the washed fabric into a channel type drying oven, and controlling the drying temperature at 100-120 ℃.

5. The manufacturing process of the antibacterial three-proofing foaming fabric according to claim 1, wherein the step E specifically comprises the following steps: stirring various raw materials of the foaming coating by a coating stirrer, injecting air while stirring, controlling the foaming multiplying power to be 1.5-2.5, coating the foaming coating on the bottom surface material of the semi-finished product by a coating device, and drying the bottom surface material of the semi-finished product again, wherein the drying temperature is 120 plus materials and the drying speed is controlled to be 20-30M/min.

6. The manufacturing process of the antibacterial three-proofing foamed fabric according to claim 5, wherein the foaming paint is a water-based polyurethane foaming paint.