TW201838535A - Improved shoe making assembly process - Google Patents

Abstract

An improved shoe making assembly process which adding the correction solutions of different concentrations to the TPU adhesive with a single viscosity based on the porosity or density of the adhesive material, so as to achieve the TPU adhesive viscosity management method, thus overcoming the problem of storing and managing all types of adhesives.

Description

Improved shoe assembly method and application correction solution

The present invention relates to a method of manufacturing a footwear, and more particularly to a shoemaking assembly step.

The invention further relates to a correction solution to which the aforementioned shoe assembly step is applied.

The general method for manufacturing footwear includes a number of steps and procedures, one of which is to connect a sole made of rubber and EVA (polyvinyl acetate) with a vamp material (substrate), and bond the sole and the upper. Assembled together, the material of the aforementioned upper may be PU (polyurethane), synthetic leather, leather, mesh structure or fabric;

In order to allow the upper and the sole to be reliably and firmly combined, a continuous pre-treatment procedure is required for each part of the shoe (sole, upper), such as: degreasing, polishing, painting, oven heating, marking and coating. a rubberized mixture, and the aforementioned procedure for applying the adhesive can be applied to the sole or the upper separately, or can be applied to the sole and the upper at the same time;

The glue commonly used in shoemaking is a glue suitable for PU (polyurethane). Such glue can be presented in different forms, such as: solution, adhesive, hot melt film and powder hot melt adhesive (TPU-thermoplastic) PU) and other types.

Wherein, the solution is formed by using a solution or an adhesive as a solvent/water-based glue, and a wet layer thickness of about 100-200 micrometers is generated before the adhesive is dried, and the thickness is 20- after the adhesive is dried and activated. 60 microns, therefore, in the case of coating a thicker layer of glue, it requires very long drying time and requires high energy consumption; conversely, in the case of thin coating of the glue layer, it may result in In the case of insufficient adhesion or even failure (air cavity adhering to the surface), for the foregoing reasons, a single layer of solvent/water based glue applied to a single surface does not provide adequate adhesion of the shoe components (sole and upper).

In order to solve the above problems, the industry solution is to apply a glue/adhesive layer on the sole and the upper, respectively. In some special cases (depending on the characteristics of the material), it is necessary to separately A double-layer adhesive is applied to the upper to achieve proper adhesion.

A good adhesion between the sole and the upper is the use of a powdered hot melt thermoplastic polyurethane (TPU) adhesive, such as the U.S. Patent Application No. 20140093655, which is a method of bonding a shoe component, which is a thermoplastic polyurethane (TPU). Powder glue.

Due to the chemical nature of thermoplastic polyurethane (TPU), there is no need for solvent/water evaporation procedures and it can be applied to only a single layer with a thickness of 100 to 500 microns, so it can be applied to only one side (sole and On one side of the upper, it can be adhered to the shape of any 3D substrate by applying a layer of viscous liquid or by electrostatic force to the surface of the shoe material.

It can be used to bond any shoe component material type (porous or dense) and is environmentally friendly during short-term activation without toxic solvents (VOC) volatilization.

Although TPU materials have the aforementioned advantages, there may be some limitations, such as:

In order to achieve proper bonding between the sole material (material coated with TPU adhesive) and the upper material, it is desirable to have a variety of upper materials or different types of painting compositions, each having a specific coating composition Viscosity to match the porosity of the upper material to be bonded.

For example, a porous upper substrate (e.g., mesh) that is susceptible to gel penetration may require a high viscosity primer (3000-6000 cP) to fill the pores;

The low-viscosity primer (less than 3000cP) will penetrate into the bottom of the mesh without forming a continuous adhesion on the surface of the mesh. Therefore, a dense material may need to be treated with a low-viscosity primer solution for the treatment agent. It is easier to penetrate into the material hole.

In order to be able to "process" upper materials corresponding to different characteristics, different types of treatment agents must be handled and managed to suit the needs of different materials, which will cause inventory problems and expiration dates, resulting in expensive costs. .

In addition, in the conventional shoe assembly step, the sole and the upper require cumbersome pretreatment, and the specific implementation method is as shown in FIG. 1:

The sole must be sequentially executed: a sole cleaning step 51, a sole sole brushing step 52, a sole applying a viscous liquid step 53, a coating powder step 54;

The upper must be sequentially executed: a cleaning step 61, a marking step 62, a coating processing step 63, and a second baking step 64;

After the aforementioned pre-treatment steps are performed on the sole and the upper, the drying processing step 71 and the assembly step 72 can be performed, and the process is rather cumbersome.

SUMMARY OF THE INVENTION The present invention provides an improved shoe assembly method that is primarily capable of bonding different types of shoe substrate materials through a single type of TPU glue/adhesive to overcome the problem of having to store and manage various types of adhesives.

In order to achieve the foregoing objects, the improved shoemaking method of the present invention comprises:

a sole cleaning step of cleaning a sole surface so that the sole surface can be coated with TPU powder;

Shoe coating step, applying primer to enable the surface of the sole to be coated with TPU powder;

Applying a viscous liquid to the sole, applying a related brushing process to apply a layer of viscous or conductive liquid;

The sole is coated with a TPU powder step, and the TPU powder is applied to the viscous or conductive liquid layer, and the TPU powder can provide adhesion by the viscosity of the viscous liquid layer or the static electricity of the conductive liquid;

An adjustment step of applying a correction solution to the TPU powder;

An upper cleaning step for cleaning an upper to be assembled;

a drying treatment step of heating to dry the correction solution and activating the TPU powder;

The assembly step is to connect the pressing sole surface and the upper.

The invention further provides a correction solution comprising:

Adding 5~90% plasticizer or adjusting solvent;

Adding a crosslinking agent in an amount of 2 to 15%;

Adding an amount of 0.01 to 2% of the surfactant;

The amount added is an appropriate amount such that the sum of the three is 100%.

The improved shoemaking method of applying a correction solution enables the present invention to overcome the problem of having to store and manage various types of adhesives while also simplifying the procedure.

To enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please follow the brief description of the following:

Each of the hot melt thermoplastic polyurethanes (hereinafter referred to as TPU) is characterized by a viscosity generated at an activation temperature which is a temperature at which the TPU substance reaches the bonding process.

The TPU adhesive applied to the base shoe material (the rubber sole in this embodiment) must adjust the viscosity according to the porosity of the shoe material (for example, the upper material) to be bonded, and the porous substrate material which is easy to penetrate the glue needs to be coated. A relatively low-viscosity melted TPU adhesive (3000-6000 cP), while a denser substrate requires a higher viscosity melted TPU adhesive (15000-20000 cP) on the shoe base material.

It is worth mentioning that the aforementioned porosity or void ratio is a measure of the void volume of the upper material and is the ratio of the volume of the void to the total volume of the material, which is a percentage between 0 and 100%. The size of the pores plays an important role because the penetration of the TPU binder into the pores is more difficult than the penetration of the pores.

The specific embodiments of the present invention are described in detail as follows:

The present invention provides a method for managing the viscosity of a TPU adhesive by adding a correction solution 10 comprising a plasticizer 111 or a conditioning solvent 112 to a TPU adhesive 20 of a single viscosity, and adding a conditioning solvent 112 in the present invention. The correction solution 10 is a preferred embodiment. In the present embodiment, the single viscosity TPU adhesive 20 is a higher viscosity.

According to the porosity or density of the material to be bonded, and by adding the correction solution 10 (including the plasticizer 111 or the adjusting solvent 112) to reduce the viscosity of the TPU adhesive 20 of a single viscosity, thereby forming one of the adjusted TPU adhesives X, The adjusted TPU adhesive X can achieve good glue penetration and optimal bonding of the shoe material. In addition, since the adhesive strength penetrates into the substrate through mechanical perfusion, no brushing or filling is required. .

Since the amount of the correction solution 10 added to the TPU adhesive 20 of a single viscosity is very small compared to the TPU adhesive 20 of a single viscosity, a carrier 13 becomes indispensable in the process of the standard coating, and The TPU adhesive 20 having the single viscosity of the correction solution 10 has poor humidity, so the addition of the adjusted one of the surfactants 14 is a solution to the problem, and the adjustment solvent 112 / the plasticizer 111 is mixed according to the adjustment amount. A crosslinking agent 12, the carrier 13 is formed to form the correction solution 10. Preferably, the correction solution 10 may further comprise the surfactant 14.

According to the present invention, the addition of the correction solution 10 containing different concentrations of the plasticizer 111 or the adjustment solvent 112 to the single-viscosity TPU adhesive 20 can produce the adjusted TPU adhesive X with different viscosities, and the concentrations are based on The porosity of the shoe material to be bonded depends on the porosity characteristics.

According to the present invention, the single viscosity TPU adhesive 20 must be pre-defined and selected. The single viscosity TPU adhesive 20 should be preselected to have the highest viscosity during the conventional bonding process and can be applied to the most dense (lowest porosity) shoe substrate. The TPU adhesive of the material, so that the correction solution 10 containing different doses of the plasticizer 111 or the adjustment solvent 112 can be added to the TPU adhesive 20 of a single viscosity according to the shoe substrate material of different porosity, and the adjusted one is formed. TPU Adhesive X, the adjusted TPU Adhesive X can interact with the specific porosity of the shoe substrate material to achieve the best adhesion.

The aforementioned adjustment solvent 112 or plasticizer 111 can be designed in a series of different concentrations, so that the formed adjusted TPU adhesive X can be applied to various shoe substrate materials, from the lowest porosity (low permeability) to the highest porosity ( Porous) shoe substrate material.

The adjusting solvent 112 disclosed in the present invention is: cyclohexanone, dimethyl fluorene (DMOS), perchloroethylene and other suitable solvents, and is not limited thereto.

The selected adjustment solvent 112 has the following limit conditions

1. The boiling point is above 100 ° C to prevent evaporation of the solvent prior to activation.

2. The boiling point is below 250 ° C, allowing the solvent to evaporate within 48 hours.

3. It is an environmentally friendly solvent, no danger and no odor.

In the present invention, the preferred conditioning solvent 112 is dimethyl fluorene (DMOS);

The correction solution 10 can be composed of four main components, as shown in FIG. 4: (1) The plasticizer 111 or the adjustment solvent 112 is added in an amount of 5 to 90%; (2) The addition amount is 2 to 15%. The cross-linking agent 12; (3) is added in an amount of 0.01 to 2% of the surfactant 14; (4) The amount of the carrier 13 is added in an amount such that the sum of the four is 100%, and the carrier 13 may be a solvent or water.

Examples of the ratio of the porosity to the correction solution 10 are: the porosity of the mesh material is about 80-95%, the porosity of the pig skin is about 40%, and the porosity of the synthetic PU skin is about 0-20%. In a general state, the ratio of one of the single viscosity TPU adhesives 20 (ie, TPU powder) to the correction solution 10 is 1:0.2 to 1:3.5, wherein a ratio of 1:0.2 is suitable for materials having a low porosity (for example) , synthetic leather 0-20% porosity), 1:3.5 ratio is suitable for high porosity materials (such as mesh materials), the optimal ratio of specific materials requires a series of powder tests, and then adjust and correct the different proportions.

The following is an example of a specific correction solution 10 based on water or methyl ethyl ketone (carrier 13):

Formulation 1 : (1). Addition amount of 20% dimethyl hydrazine (DMOS) (2). Addition amount of 10% crosslinker R490 (Artecola) (3). Addition amount is 70% methyl Ethyl ketone.

Formulation 2 : (1). Addition amount of 20% dimethyl hydrazine (DMOS) (2). Addition amount of 10% crosslinker R490 (Artecola) (3). Addition amount is 69.9% methyl Ethyl ketone. (4). A 0.1% fluorosurfactant (Capstone FD-51) was added.

In addition, the single viscosity TPU adhesive 20 can be TPU powder, the TPU powder can be selected from Lubrizol, BASF, TPUCO; the TPU powder produced by other companies can also be used, and the selected TPU powder should conform to the shoe assembly process. Specifications and requirements, and can be adapted to change the viscosity by adding a correction solution to reduce the viscosity of the TPU. The mechanical range from pure TPU to highly plasticized TPU should cover the requirements of all shoe materials, which can be limited by the following TPU To achieve: (1). The type of TPU is: polyester, polyether, caprolactam, aliphatic and other copolymers. (2). Hardness: more than 50A (3). Melting point viscosity: less than 100g/10 minutes (ASTM D-1238 - 170C, 2.16kg) (4). Glass transition temperature (Tg): less than -20 °C (5). Activation temperature: 40~80 °C (Kofler LA-17 method)

Any method capable of applying the correction solution 10 to the TPU adhesive 20 of a single viscosity may be suitable by mixing with the TPU powder, spraying on the TPU powder layer, and applying the coating to the substrate. Other methods known in the art on TPU powder layers. The above method can be performed manually or automatically.

Fig. 2 is a flow chart showing the assembly of the rubber sole (as a base material) and the upper (target material) proposed by the present invention. In the assembly process, only a single viscosity TPU powder 20 is applied to the substrate, and then a "mixed" treatment is performed using the defined concentration of the correction solution 10, and the adjusted TPU adhesive X is obtained, and the correction solution 10 is inside. The concentration of the conditioning solvent 112 is determined by the upper to be bonded.

The shoemaking assembly step of the present invention, as shown in FIG. 2, includes:

Sole cleaning step A, cleaning a sole surface so that the sole surface can be coated with TPU powder;

The sole is brushed in step B1, and the primer is applied to enable the surface of the sole to be coated with TPU powder;

Applying a viscous liquid step B2 to the sole, applying a related brushing process to apply a layer of viscous or conductive liquid;

The sole is coated with TPU powder step C, and the TPU powder is applied to the viscous or conductive liquid layer, and the TPU powder can provide adhesion by the viscosity of the viscous liquid or the static electricity of the conductive liquid layer;

Adjusting step D to apply the correction solution to the TPU powder;

The upper cleaning step E, cleaning an upper to be assembled;

Drying step F, heating to dry the correction solution and activate the TPU powder;

Assembly step G, pressing and bonding the sole surface and the upper.

In another embodiment, the shoemaking assembly step, as shown in FIG. 3, includes:

Sole cleaning step A, cleaning a sole surface so that the sole surface can be coated with TPU powder;

The sole is brushed in step B1, and the primer is applied to enable the surface of the sole to be coated with TPU powder;

Applying a viscous liquid step B2 to the sole, applying a related brushing process to apply a layer of viscous or conductive liquid;

The sole is coated with TPU powder step C, and the TPU powder is coated on the viscous or conductive liquid layer, and the TPU powder can provide adhesion by the viscosity of the viscous liquid layer or the static electricity of the conductive liquid to form a powder layer;

Judging step H, determining the porosity of a vamp material, and then determining whether to perform the adjustment step D, if necessary, performing the adjustment step D, if not necessary, performing the drying process step F;

Adjusting step D, applying the correction solution 10 to the powder layer;

Drying step F, heating to activate the TPU powder;

The upper cleaning step E, cleaning the upper to be assembled; and

Assembly step G, connecting the sole surface and the upper.

The following are examples of applying different concentrations of solvent to the upper material according to different porosities, and are also specific examples of the steps:

Example 1: (a). Sole coating viscous liquid Step B2: Coating the sole (rubber) with a viscous liquid (dispersion of TPU in water); (b) Applying TPU powder to the sole Step C: Using Orisol The machine produced (model OPS 410) is coated with a high molecular weight powdered TPU on a viscous liquid, each coated with 3 g, respectively (it is worth mentioning that the aforementioned high molecular weight powdery The TPU may be Artepowder 7080 manufactured by Orisol; (c) Drying step F: The powdered TPU having a high molecular weight on the sole is heated in an oven at 65 ° C / 3 minutes and activated by a flash activator ( Up to 90 ° C on the surface); (d) Assembly step G: Adhesion to the upper part made of mesh without any pretreatment, (e) Test procedure: Peel test after 48 hours It is confirmed that there is low adhesion between the mesh of the upper and the sole, and the aforementioned adhesion is between 2 and 10 N/cm.

Example 2: (a). Sole coating viscous liquid Step B2: Coating the sole (rubber) with a viscous liquid (dispersion of TPU in water); (b). Sole coating TPU powder Step C: Using Orisol The machine produced by the company (model OPS 410) coats the powdered TPU with high molecular weight on the viscous liquid, and each sole is coated with 3g respectively. (It is worth mentioning that the above-mentioned powder with high molecular weight The TPU may be Artepowder 7080) produced by Orisol; (c). Adjustment step D: coated with 3 g of the correction solution 10 on a powdered TPU layer having a high molecular weight, the above-mentioned correction solution 10 is the above preparation 1; (d). Drying treatment step F: After the aforementioned spraying step, the powdered TPU having a high molecular weight on the sole is heated in an oven at 65 ° C / 3 minutes and activated by a flash activator (up to 90 on the surface) °C); (e) Assembly step G: Adhesion to the upper part made of mesh without any pretreatment; (f) Test procedure: Peel test after 48 hours, the average peel force is 62N / cm, with 30N / cm as a pass or not test Quasi.

Example 3: (a). Sole coating viscous liquid Step B2: Coating the sole with a viscous liquid (dispersion of TPU in water), the material of the sole is rubber mixed EVA (polyvinyl acetate); (b Sole coated TPU powder Step C: Using a machine made by Orisol (model OPS 410), a powdered TPU with high molecular weight is applied to the viscous liquid, and each sole is coated with 3g respectively. It is to be noted that the aforementioned powdered TPU having a high molecular weight may be Artepowder 7080 manufactured by Orisol; (c). Adjustment step D: using 3 g of the correction solution 10 on a powdery TPU layer having a high molecular weight Coating, the aforementioned correction solution 10 is the above-mentioned preparation 1; (d). Drying treatment step F: After the aforementioned spraying step, the powdered TPU having a high molecular weight on the sole is heated in an oven at 65 ° C / 3 minutes and Activated by flash activator (up to 90 ° C on the surface); (e) Assembly step G: Adhesive to the upper part made of artificial leather without any pretreatment, the artificial leather will have a partial area Immediately after assembly and crimping, it is separated from the upper.

Example 4: (a). Sole coating viscous liquid Step B2: Coating the sole with a viscous liquid (dispersion of TPU in water), the material of the sole is rubber mixed EVA (polyvinyl acetate); (b Sole coated TPU powder Step C: Using a machine made by Orisol (model OPS 410), a powdered TPU with high molecular weight is applied to the viscous liquid, and each sole is coated with 3g respectively. It is to be noted that the aforementioned powdered TPU having a high molecular weight may be Artepowder 7080 manufactured by Orisol; (c). Adjustment step D: 1.5 g of the correction solution on a powdery TPU layer having a high molecular weight 10 coating, the aforementioned correction solution 10 is the above preparation 1; (d). Drying treatment step F: After the aforementioned spraying step, the powdered TPU having a high molecular weight on the sole is heated in the oven at 65 ° C / 3 minutes. And dried by flash activator (up to 90 ° C on the surface); (e) Assembly step G: Adhesive to the upper part made of artificial leather without any pretreatment, so that the last shoe body No separation problem; (f) Test procedure: 48 small The peel test was carried out afterwards, and the average peeling force was 57 N / cm, and 35 N / cm was used as the test standard for pass or fail.

Example 5: (a). Sole coating viscous liquid Step B2: Coating the sole with a viscous liquid (dispersion of TPU in water), the sole is made of rubber; (b). Sole coating TPU powder Step C : Using a machine made by Orisol (model OPS 410), a powdered TPU with a high molecular weight is applied to the viscous liquid, and each sole is coated with 3 g, respectively (it is worth mentioning that the aforementioned high molecular weight) The powdered TPU may be Artepowder 7080 manufactured by Orisol; (c). Adjustment step D: coating with 3 g of the correction solution 10 on a powdery TPU layer having a high molecular weight, the above-mentioned correction solution 10 being the above Formulation 2; (d). Drying treatment step F: After the aforementioned spraying step, the powdered TPU having a high molecular weight on the sole is heated in an oven at 65 ° C / 3 minutes and dried by a flash activator (at (90°C on the surface); (e) Assembly step G: Adhesion to the upper part made of mesh without any pretreatment; (f) Test procedure: Peel test after 48 hours, average The peel force is 45N / cm and is qualified at 30N / cm No. of test standards.

"Knowledge Technology"

51‧‧‧Sole cleaning steps

52‧‧‧Sole sole painting step

53‧‧‧ Steps for applying viscous liquid to the sole

54‧‧‧ Coating powder step

61‧‧‧cleaning steps

62‧‧‧Marking steps

63‧‧‧ Coating process steps

64‧‧‧Second baking step

71‧‧‧Drying process steps

72‧‧‧ Assembly steps

"this invention"

A‧‧‧Sole cleaning steps

B1‧‧‧Sole brushing steps

B2‧‧‧Sole coating viscous liquid step

C‧‧‧Sole coating TPU powder step

D‧‧‧Adjustment steps

E‧‧‧Shoe cleaning steps

F‧‧‧ drying process steps

G‧‧‧assembly steps

H‧‧‧ Judgment step

10‧‧‧correction solution

20‧‧‧TPU adhesive with a single viscosity

111‧‧‧ plasticizer

112‧‧‧Adjust solvent

12‧‧‧Reagent

13‧‧‧ Carrier

14‧‧‧Interfacial active agent

X‧‧‧TPU adhesive

Figure 1 is a schematic illustration of the workflow required for conventional rubber sole and upper materials during assembly. 2 is a schematic view showing a preferred working process of the rubber sole and the upper material in the assembly process of the present invention. 3 is a schematic view showing another assembly work flow of the rubber sole and the upper material of the present invention. Figure 4 is a composition of the TPU adhesive used in the assembly process of the rubber sole and upper material of the present invention.

Claims (14)

An improved footwear assembly method comprising the steps of: a sole cleaning step of cleaning a sole surface to enable a TPU powder to be coated on the sole surface; a sole painting step, applying a primer to enable the sole surface to be coated with TPU powder The sole is coated with a viscous liquid step, and the relevant painting process is applied to apply a viscous or conductive liquid layer; the sole is coated with a TPU powder step, and the TPU powder is applied to the viscous or conductive liquid layer, and the TPU powder is adhered by The viscosity of the liquid layer or the static electricity of the conductive liquid provides adhesion to form a powder layer; the adjustment step applies a correction solution to the powder layer; the upper cleaning step, cleaning an upper to be assembled; a dry treatment step of heating to dry the correction solution and activating the TPU powder; and an assembly step of pressing the surface of the sole and the upper. The improved shoemaking method according to the first aspect of the invention, wherein the ratio of the TPU powder to the correction solution is between 1:0.2 and 1:3.5. The improved shoemaking method of claim 1, wherein the correction solution comprises a plasticizer or a conditioning solvent. The improved shoemaking method of claim 1, wherein the correction solution is sprayed onto the powder layer. The improved shoemaking method of claim 1, wherein the correction solution is applied to the powder layer by brushing. The improved shoemaking method according to claim 1, wherein the TPU powder has the following characteristics: (1) The type of the TPU is: polyester, polyether, caprolactam, aliphatic and other copolymerization. (2). Hardness: more than 50A; (3). Melting point viscosity: less than 100g/10 minutes (ASTM D-1238 - 170C, 2.16kg); (4). Glass Transition Temperature (Tg): Below -20 ° C; (5). Activation temperature: 40 ~ 80 ° C (Kofler LA-17 method). The improved shoemaking assembling method according to claim 3, wherein the adjusting solvent comprises the following characteristics: (1) a boiling point higher than 100 ° C (2) a boiling point lower than 250 ° C (3) having a good poly Asian Urethane absorption capacity. The improved shoemaking method of claim 1, wherein the correction solution is based on water or methyl ethyl ketone. The improved shoemaking method as described in claim 1 is applicable to the assembly and assembly of the shoemaking process. An improved footwear assembly method comprising the steps of: a sole cleaning step of cleaning a sole surface to enable a TPU powder to be coated on the sole surface; a sole painting step, applying a primer to enable the sole surface to be coated with TPU powder The sole is coated with a viscous liquid, and the relevant brushing process is applied to apply a layer of viscous or conductive liquid; the sole is coated with a TPU powder step, and the TPU powder is applied to the viscous or conductive liquid layer, and the TPU powder can be used. The viscosity of the viscous liquid or the static electricity of the conductive liquid provides an adhesion force to form a powder layer; the judging step determines the porosity of the material of the upper, and further determines whether the adjustment step is performed, and if necessary, performs the adjustment step, such as If not required, the drying treatment step is performed; the adjusting step applies the correction solution to the powder layer; the drying treatment step, heating to activate the TPU powder; the upper cleaning step, cleaning the upper to be assembled; and the assembling step , the connection presses the sole surface and the upper. A correction solution comprising: adding a plasticizer or adjusting solvent in an amount of 5 to 90%; adding a crosslinking agent in an amount of 2 to 15%; adding an appropriate amount of the carrier, so that the sum of the three is 100%. A correction solution comprising: adding a plasticizer or adjusting solvent in an amount of 5 to 90%; adding a crosslinking agent in an amount of 2 to 15%; adding an amount of 0.01 to 2% of an interface active agent; The carrier is such that the sum of the four is 100%. The correction solution of claim 11 or 12, wherein the carrier is a solvent or water. The modified solution according to claim 11 or 12, wherein the adjusting solvent is dimethyl fluorene (DMOS).