CN111560129A - Rubber floor with surface printing and preparation process thereof - Google Patents

Rubber floor with surface printing and preparation process thereof Download PDF

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Publication number
CN111560129A
CN111560129A CN201910115336.5A CN201910115336A CN111560129A CN 111560129 A CN111560129 A CN 111560129A CN 201910115336 A CN201910115336 A CN 201910115336A CN 111560129 A CN111560129 A CN 111560129A
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rubber
roller
discharging
percent
thickness
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章斌
兰平
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Shanghai Jiafu New Material Technology Co ltd
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Shanghai Jiafu New Material Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06Copolymers with styrene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc

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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention discloses a rubber floor with surface printing and a preparation process thereof, wherein the rubber floor comprises the following raw materials in parts by weight: natural glue: 10 percent; styrene-butadiene rubber: 20 percent; accelerator (b): 2 percent; white carbon black: 15 percent; argil: 40 percent; pigment: 5 percent; 5% of zinc oxide; sulfur: 3 percent. The invention can provide various irregular printing patterns for consumers to select while the rubber floor meets the Shore hardness requirement.

Description

Rubber floor with surface printing and preparation process thereof
Technical Field
The invention relates to a manufacturing process of a rubber floor, in particular to a rubber floor with surface printing and a preparation process thereof.
Background
The current decorative floor on the market comprises a hardwood floor, a PVC elastic floor, a floor tile and the like, and the traditional wood floor has poor waterproof performance and large shrinkage deformation; although the waterproof performance of the PVC floor is good, compared with a rubber floor, the PVC floor has poor resistance to heavy pressure and rebound elasticity and insufficient comfort of feet feeling; the ceramic tile is hard and has insufficient anti-skid performance.
As a large country for rubber production, with the scrapping of a large number of rubber products such as tires, rubber tubes and the like, waste rubber appears before people as another large pollution source. The rubber floor is made of natural rubber, synthetic rubber and other high polymer materials. The rubber floor is bright and beautiful in appearance, soft in texture like rubber, is preferable for paving materials in places such as sports grounds, airports, libraries, high-speed rails and the like which have large people flow and have high requirements on wear resistance, foot feel and rebound performance of the floor, is popular with people due to the characteristics of good elasticity, excellent shock absorption, wear resistance, insulation and the like, and is widely applied to ground paving of various hotels and sports factories. The rubber floor has strong potential requirements in domestic and foreign markets due to the excellent performance of the rubber floor, and the development situation is good. Rubber flooring has been popular as a floor finishing material in developed countries abroad for several decades and has been widely used. But just recently emerged in China.
However, due to the limitation of the color matching process, the patterns and colors of the rubber floors popular in the current market have great selection limitation, and cannot meet the individual requirements of numerous consumers; meanwhile, in order to enable the rubber floor to have excellent heavy pressure resistance and rebound resilience after heavy pressure release, the hardness of the rubber floor is required to be more than Shore A70, and the foot feeling of the rubber floor is sacrificed to a certain extent.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the rubber floor with the surface printing and the preparation process thereof, so that the rubber floor can meet the Shore hardness requirement and can provide various irregular printing patterns for consumers to select.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the rubber floor with surface printing comprises the following raw materials in parts by weight:
natural glue: 10 percent;
styrene-butadiene rubber: 20 percent;
accelerator (b): 2 percent;
white carbon black: 15 percent;
argil: 40 percent;
pigment: 5 percent;
5% of zinc oxide;
sulfur: 3 percent.
The accelerant is accelerant M, CZ and TMTD.
In another aspect, a method for preparing a rubber flooring having a surface printing, includes: the production method comprises the following steps of (1) discharging rubber materials, manufacturing broken flowers, vulcanizing by a vulcanizing machine, polishing finished products, testing the finished products, inspecting, packaging and warehousing;
the sizing material sheet production comprises the following process steps:
firstly, placing main materials, auxiliary materials and accelerators required by qualified detection in a designated area, and conveniently weighing;
secondly, cutting the main material and the auxiliary material into rubber, plasticating, weighing and matching, mixing the rubber to form rubber, and weighing and matching the accelerator;
thirdly, mixing the sizing material and the accelerant obtained in the step two) by using an internal mixer, and then filtering;
fourthly, the rubber material obtained in the third step is remilled by a rubber mixing mill, sulfur powder is sieved after the rubber material is softened, and then the rubber material is dropped and taken out of a disc, cooled for standby and taken out of a test piece;
fifthly, carrying out three-roller sheet discharging on the test piece obtained in the step four) to form a semi-finished product, testing the semi-finished product, and hanging the semi-finished product on a rubber frame to be vulcanized after the semi-finished product is tested to be qualified;
the preparation of the chopped flower comprises the following steps: making cooked flowers, making raw flowers and making marbling;
the preparation method of the cooked flowers comprises the following process steps:
1) the color film is subjected to back refining and sulfur addition;
2) the exit thickness of the back-refined film is 1.3-1.8 mm;
3) vulcanizing the rubber sheet on a vulcanizing machine;
4) cutting the vulcanized film into small films with the length of 1-1.2 mm and the width of 45-50 mm, and then refrigerating, freezing and standing for 24 hours
5) Putting the small rubber sheets into a crusher for crushing;
6) sieving with coarse mesh sieve to remove broken pieces, sieving with fine mesh sieve to obtain qualified flower pieces, and pulverizing after sieving;
the production of the raw flower comprises the following process steps:
A) adding sulfur into the raw flower color material for remilling;
B) forming a film with the thickness of 0.8-1 mm and the width of 0.8-1 mm on a three-roller calender;
C) alternately compounding two or more color films on a compound machine into 3.5-4 mm films;
D) cutting the compounded film into small films with the thickness of 0.8-1 mm multiplied by 0.8-1 mm;
E) placing the cut small rubber sheets on a two-roller constant-speed calender and calendaring for several times to enable the thickness of the small rubber sheets to be 1.8-2 mm;
F) cutting the film obtained in the step E) into adhesive tapes with the width of 4.5-5.5 cm, standing for 24 hours, and then putting the adhesive tapes into a crusher to crush the adhesive tapes once;
G) sieving with coarse mesh sieve, removing broken pieces, sieving with fine mesh sieve to obtain qualified flos Chrysanthemi, and pulverizing again without sieving;
the marble pattern manufacturing comprises the following process steps:
a) respectively putting one rubber material serving as a base color and the other rubber material serving as a color matching color into corresponding remills for remilling and vulcanizing;
b) rolling the two sizing materials obtained in the step a), and then respectively placing the two sizing materials on corresponding piece discharging trolleys, so that the thickness of the rubber strip discharging of the two sizing materials is 1.2-1.6 cm, the width of the base color sizing material is 9-10 cm, and the width of the color matching sizing material is 1/3 of the width of the base color sizing material;
c) putting the two rubber strips obtained in the step b) into a screw extruder at the same time;
d) the rubber sheet passes through an extruder and then is changed into a continuous thick rubber sheet through a die plate, the rubber sheet reaches the width and the thickness of the technological requirement through a two-roller calender, and finally the rubber sheet with marble patterns is obtained;
the vulcanizing of the sulfur blowing machine comprises the following processes:
the steam pressure is 6.5-8 Mpa, the oil pump pressure is 19-21 Mpa, the motor speed is determined according to the requirement of the rubber plate thickness specification, the upper layer and the lower layer of the semi-finished rubber sheet are aligned and placed in the middle of the lining cloth, and each 1.5m of the semi-finished rubber sheet is2100g of chopped flowers are uniformly sprayed into the inner part.
In the rubber material sheet discharging step two), during plastication, the roller distance is less than or equal to 1mm, the roller temperature is less than or equal to 50 ℃, and the thin passing times are 10-15 times.
In the step two) of discharging the rubber material, the roller distance is 3-5 mm and the roller temperature is 40-55 ℃ during mixing.
And in the third step of discharging the rubber material, mixing by using an internal mixer, setting the temperature to be 70-90 ℃ in winter, setting the temperature to be 80-100 ℃ in summer, setting the time to be 5-8 min, performing primary plate falling by using two triangular bags with a roller spacing of 1-1.5 mm on an open mill after discharging, discharging the rubber material with a roller spacing of 6-7 mm on a filter vehicle for filtering, discharging the rubber material with a roller spacing of 6-7 mm according to each vehicle, hanging and cooling after a water tank is immersed, cooling the rubber material to be below 35 ℃, numbering and stacking.
And in the step four) of discharging the rubber material, an 18-inch rubber mixing machine is adopted, the roller temperature is set to be 40-55 ℃, the roller spacing is 5-7 mm, sulfur powder is uniformly sieved by a small circular sieve after the rubber material is softened, then the left and right large reverse knives are used twice, two triangular bags with the roller spacing of 1-1.5 mm are used for one-time tray falling, then the roller spacing of 5-7 mm is used for discharging the rubber material, and the rubber material is cooled for standby use and the test piece is taken.
And in the step five) of discharging the rubber material, the three-roller temperature is 60-80 ℃ of the upper roller, 60-80 ℃ of the middle roller and 60-70 ℃ of the lower roller respectively, the rubber material on two sides to be discharged is thinly passed once by the thickness of less than or equal to 0.5mm, then the rubber material is refined again to be discharged, the sheet discharging width is 1000-1200 mm, the thickness of the sheet discharging surface layer is 0.5-0.6 mm, and the thickness of the bottom layer is 1.3-1.4 mm.
The semi-finished product and finished product testing comprises the following steps: the method comprises the steps of quick test and inspection of rubber compound, conventional physical and mechanical performance test and inspection of antistatic index of finished products.
In the technical scheme, the rubber floor with the surface printing and the preparation process thereof provided by the invention not only ensure that the rubber floor meets the requirement of hardness shore, so that the rubber floor has better foot feeling comfort and elasticity, but also can keep all performances of the rubber floor on the market. And various natural irregular printing patterns can be selected by consumers in various aspects.
Drawings
FIG. 1 is a flow chart of the manufacturing process of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
The invention provides a rubber floor with surface printing, which comprises the following raw materials in parts by weight:
natural glue: 10 percent;
styrene-butadiene rubber: 20 percent;
accelerator (b): 2 percent;
white carbon black: 15 percent;
argil: 40 percent;
pigment: 5 percent;
5% of zinc oxide;
sulfur: 3 percent.
Preferably, the promoter is M, CZ or TMTD.
As shown in fig. 1, the present invention also provides a method for preparing a rubber floor having a surface print, comprising: the production method comprises the following steps of (1) discharging rubber materials, manufacturing broken flowers, vulcanizing by a vulcanizing machine, polishing finished products, testing the finished products, inspecting, packaging and warehousing;
preferably, the sizing material sheet production comprises the following process steps:
firstly, placing main materials, auxiliary materials and accelerators required by qualified detection in a designated area, and conveniently weighing;
the raw materials were tested as follows:
natural glue: the impurity content (m/m) is less than or equal to 0.05, the initial Plasticity (PO) is more than or equal to 30, the Plasticity Retention Index (PRI) is more than or equal to 60, the volatile matter content (m/m) is less than or equal to 1.0, the nitrogen content (m/m) is less than or equal to 0.6, and the ash content (m/m) is less than or equal to 0.6.
Styrene-butadiene rubber: volatile components (%) < 0.75, ash (%) < 1.5, organic acid (%) 4.75-7.00, rosin acid soap (%) < 0.5, combined styrene (%) 23.5 +/-1.0, crude rubber ML1+4, temperature of 100 ℃ 46-58, elongation (35 min)% > 330, tensile strength (35 min)% Mpa (kg +/cm)2) Not less than 24.5(250), 300% stress at definite elongation of Mpa (kg +/cm)2)≥17.2(175)。
White carbon black: DB iodine value (g/kg) of 80-95, DBP absorption value (cm)3100 to 120/100 g), DBP absorption value (cm) of compressed sample3100g) 80-100, CTAB adsorption surface area (m/g) 80-100, coloring strength (%) 105, heating decrement (%) less than or equal to 3, ash content (%) < 1, and 100-mesh screen residue (%) < 1.
The accelerator test items are shown in the following table:
Figure BDA0001969118330000061
secondly, cutting the main material and the auxiliary material into rubber, plasticating, weighing and matching, mixing the rubber to form rubber, and weighing and matching the accelerator; during plastication, the roller spacing is less than or equal to 1mm, the roller temperature is less than or equal to 50 ℃, the thin passing times are 10-15 times, and the capacity is about 60 kg. During mixing, the roller spacing is 3-5 mm, the roller temperature is 40-55 ℃, raw rubber is weighed according to a formula list, two rubber materials are basically and uniformly turned, then the roller spacing is 1mm, two triangular bags are used for four times of tray falling, and a 16-inch open mill is used, wherein the general capacity is about 36 kg.
The weighing and proportioning process comprises the following steps:
i) cleaning a working site and a working platform of a batching room at first;
II) placing the required platform scale, balance scale and the like at proper positions and correcting;
III) detecting the main materials and the auxiliary materials to be qualified, arranging the main materials and the auxiliary materials at proper positions and conveniently weighing the main materials and the auxiliary materials;
IV) main material: raw rubber; the auxiliary materials are divided into fine materials and coarse materials, and the fine materials are as follows: accelerator, coarse material: carbon black, calcium carbonate;
v) checking the current production task before batching, wherein the weight of the main material and the auxiliary material is consistent with the weight of the formula list, the main material is weighed by a platform scale, the fine material is weighed by a platform scale, the material with the weight less than 50g is weighed by a balance scale, and quality supervision is performed once a day and recorded;
VI) after the main and auxiliary materials are prepared, the weight and variety of various compounding agents are corrected and stacked in a proper position and marked by a paperboard block;
VII) the weight error of the main material is +/-100 g, the weight error of the coarse material is +/-250 g, and the weight error of the fine material is +/-5 g.
Thirdly, mixing the sizing material and the accelerant obtained in the step two) by using an internal mixer, and then filtering; mixing by using an internal mixer, setting the temperature to be 70-90 ℃ in winter, setting the temperature to be 80-100 ℃ in summer, and setting the time to be 5-8 min, performing primary plate falling by using two triangular bags with a roller spacing of 1-1.5 mm on an open mill after discharging, discharging the rubber material by using a roller spacing of 6-7 mm, filtering by using a filter vehicle, discharging the rubber material by using a roller spacing of 6-7 mm per vehicle, hanging up for cooling after soaking in a water tank, and numbering and stacking after the rubber temperature is cooled to be below 35 ℃.
Fourthly, the rubber material obtained in the third step is remilled by a rubber mixing mill, sulfur powder is sieved after the rubber material is softened, and then the rubber material is dropped and taken out of a disc, cooled for standby and taken out of a test piece; adopting an 18-inch rubber mixing mill, setting the roll temperature at 40-55 ℃, setting the roll spacing at 5-7 mm, uniformly sieving sulfur powder by using a small circular sieve after the rubber material is softened, then carrying out left and right large reverse cutting twice, carrying out primary tray falling by using two triangular bags with the roll spacing of 1-1.5 mm, then carrying out sheet discharging with the roll spacing of 5-7 mm, cooling for later use, and taking the test piece.
Fifthly, carrying out three-roller sheet discharging on the test piece obtained in the step four) to form a semi-finished product, testing the semi-finished product, and hanging the semi-finished product on a rubber frame to be vulcanized after the semi-finished product is tested to be qualified; the three-roller temperature is 60-80 ℃ of the upper roller, 60-80 ℃ of the middle roller and 60-70 ℃ of the lower roller respectively, the thickness of the sizing material on two sides of the sheet to be discharged is less than or equal to 0.5mm, the sheet is thin-passed once, then the sheet is refined again, the sheet discharging width is determined according to the needs of users, the thickness of the sheet discharging surface layer is generally 1000-1200 mm, the thickness of the sheet discharging surface layer is 0.5-0.6 mm, and the thickness of the bottom layer is 1.3-1.4 mm. The film-out rubber mat cloth cannot have wrinkles, needs to be rolled tightly and uniformly, the diameter of each roll cannot exceed 800mm, needs to be cooled by adopting equipment such as a fan and the like when the film is hot to be discharged, writes the information such as the name, the specification, the semi-product inspection certificate and the like of the rubber material after the film is finally rolled, hangs the film on a rubber frame to be vulcanized, and is put into production within 24 hours.
Preferably, the flower shreds are made by the following steps: making cooked flowers, making raw flowers and making marbling;
the preparation method of the cooked flowers comprises the following process steps:
1) the color film is subjected to back refining and sulfur addition;
2) the exit thickness of the back-refined film is 1.3-1.8 mm;
3) vulcanizing the rubber sheet on a vulcanizing machine;
4) cutting the vulcanized film into small films with the length of 1-1.2 mm and the width of 45-50 mm, and then refrigerating and freezing for 24 hours at the temperature of-10 to-30 ℃;
5) putting the small rubber sheets into a crusher for crushing;
6) sieving with a special 30-mesh sieve, removing broken pieces, sieving with a 10-mesh sieve to obtain qualified flower chips, and pulverizing without sieving;
the production of the raw flower comprises the following process steps:
A) adding sulfur into the raw flower color material for remilling;
B) forming a film with the thickness of 0.8-1 mm and the width of 0.8-1 mm on a three-roller calender;
C) alternately compounding two or more color films on a compound machine into 3.5-4 mm films;
D) cutting the compounded film into small films with the thickness of 0.8-1 mm multiplied by 0.8-1 mm;
E) placing the cut small rubber sheets on a two-roller constant-speed calender and calendaring for several times to enable the thickness of the small rubber sheets to be 1.8-2 mm;
F) cutting the film obtained in the step E) into adhesive tapes with the width of 4.5-5.5 cm, refrigerating, freezing and standing for 24 hours, and then putting the adhesive tapes into a crusher to crush once at the temperature of-10-30 ℃;
G) sieving with a special 30-mesh sieve, removing broken pieces, sieving with a 10-mesh sieve, sieving to obtain qualified raw flowers, and pulverizing again if not sieving;
H) paying attention to the temperature of the pulverizer, and enabling the sizing material to agglomerate due to overheating, beating and stopping according to actual conditions, and cooling equipment;
I) the film is required to be beaten after being cold refined in 5-10 months (particularly in summer) to prevent heat agglomeration.
The marble pattern manufacturing comprises the following process steps:
a) respectively putting one rubber material serving as a base color and the other rubber material serving as a color matching color into corresponding remills for remilling and vulcanizing;
b) rolling the two sizing materials obtained in the step a), and then respectively placing the two sizing materials on corresponding piece discharging trolleys, so that the thickness of the rubber strip discharging of the two sizing materials is 1.2-1.6 cm, the width of the base color sizing material is 9-10 cm, and the width of the color matching sizing material is 1/3 of the width of the base color sizing material;
c) putting the two rubber strips obtained in the step b) into a screw extruder at the same time;
d) the rubber sheet passes through an extruder and then is changed into a continuous thick rubber sheet through a die plate, the rubber sheet reaches the width and the thickness of the technological requirement through a two-roller calender, and finally the rubber sheet with marble patterns is obtained;
preferably, the vulcanizing by the sulfur drum comprises the following processes:
i) according to the general operation process of a sulfur blowing machine;
II) the steam pressure is 6.5-8 Mpa, the oil pump pressure is 19-21 Mpa, and the motor rotating speed is determined according to the specification requirement of the thickness of the rubber plate;
III) vulcanizing the antistatic rubber plate, wherein the upper layer and the lower layer are aligned, the specification type is determined according to the process card, the vulcanized antistatic rubber plate is placed in the middle of lining cloth, and tools such as a machine table, a cushion belt and a steel belt are selected;
IV) during vulcanization, if color difference, particles, material shortage and the like are found to be inconsistent with the standard semi-finished product film, the semi-finished product film is immediately stopped to be replaced and reported;
v) the vulcanized rubber plate needs to be flat and straight, a piece of padding cloth needs to be padded on the bright part, and the length is measured according to the requirement;
VI) the flower is broken on the semi-finished film with the diameter of 1.5m2100g of chopped flowers are uniformly sprayed into the container;
VII) sprinkling broken flowers uniformly without piling, and sprinkling the broken flowers uniformly on the edges.
Preferably, the floor sanding comprises:
i) rolling the vulcanized floor according to specifications;
II) putting the floor with the same specification into a continuous grinding machine for grinding;
III) polishing the back surface of the floor;
IV) adjusting the polishing thickness according to the specific thickness of the floor;
v) grinding is required to be uniform, and if places which are not ground exist, the places need to be manually repaired and ground by using sand paper;
VI) finally cleaning the polished floor, cutting according to the specification requirement, inspecting and packaging.
Preferably, the semi-finished product and finished product testing includes:
i) quick test inspection of the rubber compound, the inspection standards are shown in the following table:
Figure BDA0001969118330000091
it should be noted that: (1) the flame-retardant broken-flower civil floor, the flame-retardant marble civil floor and the flame-retardant raw-flower civil floor have the same formula of the fabric and the base material;
(2) the patterns are divided into three types, namely marble, raw flower and cooked flower according to requirements.
II) testing the conventional physical and mechanical properties of the product, wherein the test standards are shown in the following table:
Figure BDA0001969118330000092
III) testing and checking the antistatic index of the finished product, wherein the test standards are as follows:
(1) main equipment, name and model for inspection:
ZL-90B digital megohmmeter;
a standard electrode;
and the HT-8001C digital temperature and humidity measuring meter.
Environmental conditions at the time of inspection: the temperature is 23 +/-1 ℃, and the humidity is more than or equal to 60 percent.
(2) The inspection basis is as follows:
④SJ/T10694-2004,GB/T14437-97;
⑤ Point-to-Point resistance surface layer 1 × 105Ω~1×109Omega, bottom layer 1 × 103Ω~9.99×105Ω;
⑥ System resistance 1 × 105Ω~1×109Ω。
(3) And (3) the inspection standard of the appearance quality of the finished product is as follows:
firstly, the surface of the rubber plate is smooth, the color is uniform and has no color difference, the edge is neat, and the defects of cracks, mechanical damage, crease perforation, abnormal adhesion parts and the like which influence the use cannot exist;
② dent depth: not more than 30% of the thickness of the rubber plate;
③ impurity per 1m2Must not exceed 9mm2
④ bubble content of 30% or less per 1m2Must not exceed 7mm2
And finally, inspecting, packaging and warehousing, putting the rolled products into corresponding cartons according to the order information, sealing and packaging, marking the product information on the cartons, and finally warehousing and storing.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (9)

1. The rubber floor with the surface printing function is characterized by comprising the following raw materials in parts by weight:
natural glue: 10 percent;
styrene-butadiene rubber: 20 percent;
accelerator (b): 2 percent;
white carbon black: 15 percent;
argil: 40 percent;
pigment: 5 percent;
5% of zinc oxide;
sulfur: 3 percent.
2. A rubber floor having surface printing according to claim 1, wherein: the accelerant is accelerant M, CZ and TMTD.
3. A method for preparing the rubber flooring with surface printing according to any one of claims 1 to 2, comprising: the production method comprises the following steps of (1) discharging rubber materials, manufacturing broken flowers, vulcanizing by a vulcanizing machine, polishing finished products, testing the finished products, inspecting, packaging and warehousing;
the sizing material sheet production comprises the following process steps:
firstly, placing main materials, auxiliary materials and accelerators required by qualified detection in a designated area, and conveniently weighing;
secondly, cutting the main material and the auxiliary material into rubber, plasticating, weighing and matching, mixing the rubber to form rubber, and weighing and matching the accelerator;
thirdly, mixing the sizing material and the accelerant obtained in the step two) by using an internal mixer, and then filtering;
fourthly, the rubber material obtained in the third step is remilled by a rubber mixing mill, sulfur powder is sieved after the rubber material is softened, and then the rubber material is dropped and taken out of a disc, cooled for standby and taken out of a test piece;
fifthly, carrying out three-roller sheet discharging on the test piece obtained in the step four) to form a semi-finished product, testing the semi-finished product, and hanging the semi-finished product on a rubber frame to be vulcanized after the semi-finished product is tested to be qualified;
the preparation of the chopped flower comprises the following steps: making cooked flowers, making raw flowers and making marbling;
the preparation method of the cooked flowers comprises the following process steps:
1) the color film is subjected to back refining and sulfur addition;
2) the exit thickness of the back-refined film is 1.3-1.8 mm;
3) vulcanizing the rubber sheet on a vulcanizing machine;
4) cutting the vulcanized film into small films with the length of 1-1.2 mm and the width of 45-50 mm, and then refrigerating, freezing and standing for 24 hours;
5) putting the small rubber sheets into a crusher for crushing;
6) sieving with coarse mesh sieve to remove broken pieces, sieving with fine mesh sieve to obtain qualified flower pieces, and pulverizing after sieving;
the production of the raw flower comprises the following process steps:
A) adding sulfur into the raw flower color material for remilling;
B) forming a film with the thickness of 0.8-1 mm and the width of 0.8-1 mm on a three-roller calender;
C) alternately compounding two or more color films on a compound machine into 3.5-4 mm films;
D) cutting the compounded film into small films with the thickness of 0.8-1 mm multiplied by 0.8-1 mm;
E) placing the cut small rubber sheets on a two-roller constant-speed calender and calendaring for several times to enable the thickness of the small rubber sheets to be 1.8-2 mm;
F) cutting the film obtained in the step E) into adhesive tapes with the width of 4.5-5.5 cm, refrigerating, freezing and standing for 24 hours, and then putting the adhesive tapes into a crusher for crushing once;
G) sieving with coarse mesh sieve, removing broken pieces, sieving with fine mesh sieve to obtain qualified flos Chrysanthemi, and pulverizing again without sieving;
the marble pattern manufacturing comprises the following process steps:
a) respectively putting one rubber material serving as a base color and the other rubber material serving as a color matching color into corresponding remills for remilling and vulcanizing;
b) rolling the two sizing materials obtained in the step a), and then respectively placing the two sizing materials on corresponding piece discharging trolleys, so that the thickness of the rubber strip discharging of the two sizing materials is 1.2-1.6 cm, the width of the base color sizing material is 9-10 cm, and the width of the color matching sizing material is 1/3 of the width of the base color sizing material;
c) putting the two rubber strips obtained in the step b) into a screw extruder at the same time;
d) the rubber sheet passes through an extruder and then is changed into a continuous thick rubber sheet through a die plate, the rubber sheet reaches the width and the thickness of the technological requirement through a two-roller calender, and finally the rubber sheet with marble patterns is obtained;
the vulcanizing of the sulfur blowing machine comprises the following processes:
the steam pressure is 6.5-8 Mpa, the oil pump pressure is 19-21 Mpa, the motor speed is determined according to the requirement of the rubber plate thickness specification, the upper layer and the lower layer of the semi-finished rubber sheet are aligned and placed in the middle of the lining cloth, and each 1.5m of the semi-finished rubber sheet is2100g of chopped flowers are uniformly sprayed into the inner part.
4. A method for preparing the rubber floor having surface printing according to claim 2, wherein: in the rubber material sheet discharging step two), during plastication, the roller distance is less than or equal to 1mm, the roller temperature is less than or equal to 50 ℃, and the thin passing times are 10-15 times.
5. A method for preparing the rubber floor having surface printing according to claim 2, wherein: in the step two) of discharging the rubber material, the roller distance is 3-5 mm and the roller temperature is 40-55 ℃ during mixing.
6. A method for preparing the rubber floor having surface printing according to claim 2, wherein: and in the third step of discharging the rubber material, mixing by using an internal mixer, setting the temperature to be 70-90 ℃ in winter, setting the temperature to be 80-100 ℃ in summer, setting the time to be 5-8 min, performing primary plate falling by using two triangular bags with a roller spacing of 1-1.5 mm on an open mill after discharging, discharging the rubber material with a roller spacing of 6-7 mm on a filter vehicle for filtering, discharging the rubber material with a roller spacing of 6-7 mm according to each vehicle, hanging and cooling after a water tank is immersed, cooling the rubber material to be below 35 ℃, numbering and stacking.
7. A method for preparing the rubber floor having surface printing according to claim 2, wherein: and in the step four) of discharging the rubber material, an 18-inch rubber mixing machine is adopted, the roller temperature is set to be 40-55 ℃, the roller spacing is 5-7 mm, sulfur powder is uniformly sieved by a small circular sieve after the rubber material is softened, then the left and right large reverse knives are used twice, two triangular bags with the roller spacing of 1-1.5 mm are used for one-time tray falling, then the roller spacing of 5-7 mm is used for discharging the rubber material, and the rubber material is cooled for standby use and the test piece is taken.
8. A method for preparing the rubber floor having surface printing according to claim 2, wherein: and in the step five) of discharging the rubber material, the three-roller temperature is 60-80 ℃ of the upper roller, 60-80 ℃ of the middle roller and 60-70 ℃ of the lower roller respectively, the rubber material on two sides to be discharged is thinly passed once by the thickness of less than or equal to 0.5mm, then the rubber material is refined again to be discharged, the sheet discharging width is 1000-1200 mm, the thickness of the sheet discharging surface layer is 0.5-0.6 mm, and the thickness of the bottom layer is 1.3-1.4 mm.
9. A method for preparing the rubber floor having surface printing according to claim 2, wherein: the semi-finished product and finished product testing comprises the following steps: the method comprises the steps of quick test and inspection of rubber compound, conventional physical and mechanical performance test and inspection of antistatic index of finished products.
CN201910115336.5A 2019-02-14 2019-02-14 Rubber floor with surface printing and preparation process thereof Pending CN111560129A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB756383A (en) * 1953-12-19 1956-09-05 Semtex Ltd Marbled thermoplastic sheet materials and marbled rubber-composition sheet materials
CN1827675A (en) * 2005-03-01 2006-09-06 恒昌(昆山)精密模具有限公司 High-strength wearable floor rubber and process for preparing same
CN102632558A (en) * 2012-04-06 2012-08-15 上海加富橡胶制品有限公司 Marbling rubber floor and production method thereof
CN106346815A (en) * 2016-11-23 2017-01-25 刘浩杰 Processing method of colorful compounded rubber floor
CN107100055A (en) * 2017-05-27 2017-08-29 南京东润特种橡塑有限公司 A kind of colorful rubber motion ground cushion and preparation method thereof
CN107674268A (en) * 2017-10-11 2018-02-09 陕西秦力橡胶有限责任公司 A kind of artificial granite line rubber floor covering and its production method
CN109320788A (en) * 2017-07-31 2019-02-12 傲优新材料科技(上海)有限公司 A kind of fireproof rubber floor and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB756383A (en) * 1953-12-19 1956-09-05 Semtex Ltd Marbled thermoplastic sheet materials and marbled rubber-composition sheet materials
CN1827675A (en) * 2005-03-01 2006-09-06 恒昌(昆山)精密模具有限公司 High-strength wearable floor rubber and process for preparing same
CN102632558A (en) * 2012-04-06 2012-08-15 上海加富橡胶制品有限公司 Marbling rubber floor and production method thereof
CN106346815A (en) * 2016-11-23 2017-01-25 刘浩杰 Processing method of colorful compounded rubber floor
CN107100055A (en) * 2017-05-27 2017-08-29 南京东润特种橡塑有限公司 A kind of colorful rubber motion ground cushion and preparation method thereof
CN109320788A (en) * 2017-07-31 2019-02-12 傲优新材料科技(上海)有限公司 A kind of fireproof rubber floor and preparation method thereof
CN107674268A (en) * 2017-10-11 2018-02-09 陕西秦力橡胶有限责任公司 A kind of artificial granite line rubber floor covering and its production method

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