Foaming football piece production process

Abstract

The invention belongs to the technical field of football sheet production, and discloses a foamed football sheet production process which comprises the following components: polyether polyol, isocyanate, a catalyst, a foaming agent, a plasticizer, a bio-based polymer, degradable plastic and polyvinyl chloride (PVC). According to the process, the catalyst, the foaming agent, the plasticizer, the bio-based polymer and the degradable plastic are slowly added into a stirrer, the mixed raw materials are poured into a mold to be subjected to reaction treatment, and according to the process, the raw material ratio and the processing conditions are accurately controlled, so that the produced football piece has good elasticity and abrasion resistance; the high requirement of professional football games for the performance of the ball piece can be met, and secondly, the bio-based polymer and the degradable plastic are adopted as degradable materials, so that the ball piece has the environment-friendly characteristic, environmental pollution is reduced, the production efficiency and quality of the football piece are improved, and the purposes of environmental protection and sustainable development are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of soccer ball sheet production, in particular to a foamed soccer ball sheet production process. Background Art

[0002] have.

[0003] In the prior art, Summary of the invention

[0004] The object of the present invention is to provide a foamed soccer ball sheet production process to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a production process of a foamed soccer ball sheet, wherein the foamed soccer ball sheet is composed of the following components:

[0006] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0007] Degradable materials: bio-based polymers, degradable plastics;

[0008] Outer material: polyvinyl chloride (PVC);

[0009] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0010] As a further embodiment of the present invention: the polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0011] As a further solution of the present invention: the plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0012] A foamed soccer ball sheet production process comprises the following steps:

[0013] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0014] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0015] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0016] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0017] As a further solution of the present invention: the time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0018] As a further solution of the present invention: the humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled at 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0019] As a further solution of the present invention: the heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0020] As a further solution of the present invention: after the outer skin hot pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0021] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0022] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0023] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The process of the present invention precisely controls the raw material ratio and processing conditions, so that the produced football ball piece has good elasticity and wear resistance, which can meet the high requirements of professional football matches for the performance of the ball piece. Secondly, bio-based polymers and degradable plastics are used as degradable materials, so that the ball piece has environmental protection characteristics, which is beneficial to reducing environmental pollution. It not only improves the production efficiency and quality of the football ball piece, but also achieves the goals of environmental protection and sustainable development. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0029] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0030] Degradable materials: bio-based polymers, degradable plastics;

[0031] Outer material: polyvinyl chloride (PVC);

[0032] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0033] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0034] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0035] A foamed soccer ball sheet production process comprises the following steps:

[0036] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0037] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0038] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0039] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0040] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0041] The humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled to 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0042] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0043] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0044] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0045] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0046] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0047] Embodiment 2:

[0048] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0049] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0050] Degradable materials: bio-based polymers, degradable plastics;

[0051] Outer material: polyvinyl chloride (PVC);

[0052] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0053] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0054] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0055] A foamed soccer ball sheet production process comprises the following steps:

[0056] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0057] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0058] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0059] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0060] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0061] The humidity parameter in the foaming reaction is controlled to 50%, and the foaming temperature is controlled to 70° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0062] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0063] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0064] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0065] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0066] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0067] Embodiment 3:

[0068] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0069] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0070] Degradable materials: bio-based polymers, degradable plastics;

[0071] Outer material: polyvinyl chloride (PVC);

[0072] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0073] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0074] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0075] A foamed soccer ball sheet production process comprises the following steps:

[0076] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0077] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0078] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0079] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0080] The time for mixing the raw materials is controlled within 2 minutes to ensure that the raw materials are fully mixed.

[0081] The humidity parameter in the foaming reaction is controlled to 40%, and the foaming temperature is controlled to 70° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0082] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0083] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0084] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0085] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0086] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0087] Embodiment 4:

[0088] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0089] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0090] Degradable materials: bio-based polymers, degradable plastics;

[0091] Outer material: polyvinyl chloride (PVC);

[0092] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0093] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0094] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0095] A foamed soccer ball sheet production process comprises the following steps:

[0096] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0097] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0098] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0099] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0100] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0101] The humidity parameter in the foaming reaction is controlled to 70%, and the foaming temperature is controlled to 90° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0102] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0103] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0104] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0105] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0106] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0107] Embodiment 5:

[0108] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0109] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0110] Degradable materials: bio-based polymers, degradable plastics;

[0111] Outer material: polyvinyl chloride (PVC);

[0112] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0113] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0114] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0115] A foamed soccer ball sheet production process comprises the following steps:

[0116] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0117] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0118] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0119] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0120] The time for mixing the raw materials is controlled within 1 minute to ensure that the raw materials are fully mixed.

[0121] The humidity parameter in the foaming reaction is controlled to 40%, and the foaming temperature is controlled to 60° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0122] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0123] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0124] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0125] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0126] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0127] Embodiment 6:

[0128] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0129] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0130] Degradable materials: bio-based polymers, degradable plastics;

[0131] Outer material: polyvinyl chloride (PVC);

[0132] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0133] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0134] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0135] A foamed soccer ball sheet production process comprises the following steps:

[0136] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0137] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0138] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0139] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0140] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0141] The humidity parameter in the foaming reaction is controlled to 70%, and the foaming temperature is controlled to 90° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0142] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0143] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0144] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0145] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0146] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0147]

[0148] As can be seen from Examples 1-6, the mixing time in Examples 1 and 2 is 4 minutes, while the mixing time in Examples 3 and 5 is 2 minutes and 1 minute, respectively. Short mixing time may lead to uneven mixing of raw materials, affecting the foaming quality. The heat resistance test temperature of Examples 1 and 2 is relatively high, which may indicate that a longer mixing time helps to improve the heat resistance of the foamed soccer ball sheet. After optimizing the overall parameters, the foam layer of the ball sheet is more uniform, thereby improving the overall quality and appearance of the product. The uniform foaming structure can provide more consistent elasticity and durability. Stable process parameters reduce adjustments and downtime during the production process and improve the operating efficiency of the production line.

[0149] Embodiment 7:

[0150] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0151] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0152] Degradable materials: bio-based polymers, degradable plastics;

[0153] Outer material: polyvinyl chloride (PVC);

[0154] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0155] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0156] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0157] A foamed soccer ball sheet production process comprises the following steps:

[0158] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0159] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0160] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0161] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0162] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0163] The humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled to 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0164] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0165] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0166] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0167] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0168] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0169] Embodiment 8:

[0170] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0171] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0172] Degradable materials: bio-based polymers, degradable plastics;

[0173] Outer material: polyvinyl chloride (PVC);

[0174] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0175] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0176] The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

[0177] A foamed soccer ball sheet production process comprises the following steps:

[0178] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0179] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0180] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0181] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0182] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0183] The humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled to 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0184] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0185] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0186] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0187] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0188] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0189] Embodiment 9:

[0190] A production process for a foamed soccer ball sheet, the foamed soccer ball sheet comprising the following components:

[0191] Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer;

[0192] Outer material: polyvinyl chloride (PVC);

[0193] The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

[0194] The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the blowing agent is azobisisobutyronitrile.

[0195] The plasticizer is di(2-ethylhexyl) phthalate (DOP).

[0196] A foamed soccer ball sheet production process comprises the following steps:

[0197] Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer;

[0198] Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment;

[0199] Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball;

[0200] Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

[0201] The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

[0202] The humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled to 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

[0203] The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

[0204] After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps:

[0205] Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches.

[0206] Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance.

[0207] Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

[0208]

[0209] As can be seen from Examples 7-9, Examples 7 and 8 provide a shorter degradation cycle by adding bio-based polymers and degradable plastics, which is beneficial to environmental protection, while Example 9 does not add these materials and therefore has a longer degradation cycle, which is convenient for subsequent recycling.

[0210] From the above, we can see that this process precisely controls the raw material ratio and processing conditions, so that the produced football ball pieces have good elasticity and wear resistance, which can meet the high requirements of professional football matches for ball piece performance. Secondly, the use of bio-based polymers and degradable plastics as degradable materials makes the ball pieces environmentally friendly and helps reduce environmental pollution. It not only improves the production efficiency and quality of football ball pieces, but also achieves the goals of environmental protection and sustainable development.

[0211] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foamed soccer ball sheet, characterized in that: The foamed soccer ball sheet is composed of the following ingredients: Raw materials: polyether polyol, isocyanate, catalyst, foaming agent, plasticizer; Degradable materials: bio-based polymers, degradable plastics; Outer material: polyvinyl chloride (PVC); The content of the polyether polyol is controlled at 30%-60%, the content of the isocyanate is controlled at 10%-20%, the content of the catalyst is controlled at 1%-3%, the content of the foaming agent is controlled at 5%-15%, the content of the plasticizer is controlled at 2%-5%, the content of the bio-based polymer is controlled at 10%-30%, the content of the degradable plastic is controlled at 10%-40%, and the thickness of the polyvinyl chloride (PVC) is controlled between 1-3 mm.

2. The foamed soccer ball sheet according to claim 1, characterized in that: The polyether polyol includes polyether diol and triol, the isocyanate is MDI, the catalyst is dibutyltin, and the foaming agent is azobisisobutyronitrile.

3. The foamed soccer ball sheet according to claim 1, characterized in that: The plasticizer is di(2-ethylhexyl) phthalate (DOP), the bio-based polymer is polylactic acid (PLA), and the degradable plastic is polycaprolactone (PCL).

4. A foamed soccer ball production process, according to any one of claims 1-3, characterized in that: The following steps are involved: Mixing raw materials: Mix polyether polyol and isocyanate in a certain proportion, and then slowly add catalyst, foaming agent, plasticizer, bio-based polymer and degradable plastic in a mixer; Foaming reaction: Pour the mixed raw materials into the mold for reaction treatment; Skin hot pressing: After the foam layer is solidified, the pre-cut polyvinyl chloride (PVC) is hot pressed onto the foam layer according to the shape of the ball; Molding and cooling: During the hot pressing process, keep the pressure and temperature constant until the outer skin material and the foam layer are fully bonded, then turn off the heating system and let the ball cool naturally.

5. The foamed soccer ball sheet production process according to claim 1, characterized in that: The time for mixing the raw materials is controlled within 4 minutes to ensure that the raw materials are fully mixed.

6. The foamed soccer ball sheet production process according to claim 1, characterized in that: The humidity parameter in the foaming reaction is controlled to 55%, and the foaming temperature is controlled to 75° C., so that the raw materials undergo a chemical reaction in the mold to form the desired foaming layer.

7. The foamed soccer ball sheet according to claim 1, characterized in that: The heating temperature of the outer skin hot pressing is controlled between 120-180° C. to ensure good adhesion between the outer skin material and the foam layer.

8. The foamed soccer ball sheet production process according to claim 1, characterized in that: After the outer skin heat pressing step is completed, the foamed soccer ball sheet is subjected to additional performance optimization treatment, including the following steps: Performance testing: The foamed soccer ball is tested for elasticity, wear resistance and impact resistance to ensure it meets the standards for professional soccer matches. Surface treatment: The surface of the ball piece is polished or coated to improve its wear resistance and water resistance. Quality control: The ball pieces are inspected for size and appearance defects through an automated inspection system to ensure the quality consistency and reliability of each ball piece.

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