Plastic yellow removing tablet and preparation method thereof

Abstract

The invention discloses a plastic yellow removing sheet which comprises the following components in percentage by mass: 10-36% of a surfactant, 20-35% of a washing assistant, 20-30% of a solubilizer and 2-3% of xanthan gum, and the solubilizer contains sodium bicarbonate. The detergent has two main improvement points: firstly, a conventional detergent is prepared into a tablet by adjusting a formula, so that the detergent is convenient to transport and is also convenient for a user to carry; and secondly, when the plastic yellow-removing tablet in a tablet form is explored, the packaging bag is partially swelled in the transportation process, but the technical problem is solved by compounding the raw material components such as xanthan gum and the like.

Description

Technical Field

[0001] The present invention relates to a plastic yellowing removal tablet and a preparation method thereof. Background Art

[0002] Most of the existing plastic yellowing removal products are in dosage forms, such as yellowing removal liquid. After production, they are usually packaged into containers of 150 / 250 / 300 ml for consumers to choose. However, this preparation method has the following problems: in the formula of the plastic yellowing remover, 40 - 60% is water, which not only increases the transportation cost, but also when the yellowing remover is usually filled into bottles, when cleaning plastic products, there will also be a problem that after squeezing the pump head, the pump head will automatically overflow, increasing the cleaning work after washing.

[0003] In view of the above situation, if the plastic yellowing remover is prepared into a plastic yellowing removal tablet dosage form, the above problems can be solved. However, when converting the formula of the laundry tablet to the plastic yellowing remover, there are the following defects: in the formula system with sodium bicarbonate as the main solubilizer, when made into plastic yellowing removal tablets and sealed with packaging bags, after long - distance transportation, there is a phenomenon of bulging in some packaging bags. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a plastic yellowing removal tablet and a preparation method thereof.

[0005] To solve the above - mentioned existing technical problems, the present invention adopts the following technical solutions:

[0006] A plastic yellowing removal tablet contains the following components by mass percentage of the composition: 10 - 36% surfactant, 20 - 35% washing aid, 20 - 30% solubilizer, and 2 - 3% xanthan gum, and the solubilizer includes sodium bicarbonate.

[0007] Preferably, the washing aid includes organic acid, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrant, and silicon powder.

[0008] Preferably, the solubilizer further includes polyethylene glycolic acid, potassium silicate, and table salt.

[0009] Preferably, it further includes compound phosphonate.

[0010] Preferably, it further includes thiourea dioxide.

[0011] To prepare the above - mentioned plastic yellowing removal tablet, the following steps are included:

[0012] Step (1): Put the organic acid, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrant, and silicon powder into a mixer and mix them evenly to obtain a first mixed powder for standby;

[0013] Step (2): After drying sodium bicarbonate and salt, add the remaining raw materials thereto and stir to mix evenly to obtain a second mixed powder.

[0014] Step (3): Add the second mixed powder prepared in step (2) to the first mixed powder prepared in step (1), mix evenly to obtain a third mixture, and reserve it.

[0015] Step (4): Add the third mixture prepared in step (3) to the inner mold of a tablet press for shaping to obtain a formed tablet of the plastic yellowing removal tablet.

[0016] Further, in step (4), the formed plastic yellowing removal tablet is in any one of an elliptical three-dimensional shape, a circular three-dimensional shape, and a square three-dimensional shape.

[0017] The beneficial effects of the present invention are as follows:

[0018] There are two main improvement points in this application: one is to prepare a conventional dosage form detergent into a tablet form by adjusting the formula, which facilitates transportation and is also convenient for users to carry; the other is that when exploring the tablet form of the plastic yellowing removal tablet, there is a phenomenon of partial bulging of the packaging bag during transportation, and this application overcomes this technical problem through the compounding of raw material components such as xanthan gum. Detailed Embodiments

[0019] Reference will now be provided in detail to embodiments of the present invention, one or more examples of which are described below. Each example is provided by way of explanation and not limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the scope or spirit of the present invention. For example, features illustrated or described as part of one embodiment can be used in another embodiment to yield a still further embodiment.

[0020] Accordingly, it is intended that the present invention cover such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the present invention are disclosed in or are apparent from the following detailed description. Those of ordinary skill in the art should understand that this discussion is only a description of exemplary embodiments and is not intended to limit the broader aspects of the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Except as otherwise indicated or shown in the operating examples, all numbers used in the specification and claims to indicate amounts of ingredients, physical and chemical properties, etc. are understood to be adjusted by the term "about" in all cases. For example, thus, unless otherwise stated, the numerical parameters listed in the above specification and the appended claims are approximate values, and those skilled in the art can appropriately change these approximate values to obtain the desired characteristics by using the teachings disclosed herein. The use of numerical ranges expressed with endpoints includes all numbers within that range and any range within that range. For example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5, and so on.

[0023] Table 1 Example of Experimental Formulation

[0024] Raw material name Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Xanthan gum 2g 2g - - - Carbomer - - - 2g - Hydroxyethyl cellulose - - - - 2g Surfactant 36g 36g 36g 36g 36g Washing aid 35g 34g 35g 35g 35g Solubilizer 25g 26g 25g 25g 25g

[0025] Taking Example 1 as an example, the surfactant can be selected from non-ionic surfactants and / or a combination of anionic surfactants. The washing aids can be selected from a compound of organic acids, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrants, and silicon powder. The solubilizers include polyethylene glycolic acid, sodium bicarbonate, potassium silicate, and table salt. The compounding mechanism of the above surfactants, washing aids, and solubilizers belongs to the mature technical means in the technical field, so it will not be elaborated herein.

[0026] The preparation method of Example 1 is as follows:

[0027] Step (1): Put organic acids, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrants, and silicon powder into a blender and mix them evenly to obtain a first mixed powder for standby;

[0028] Step (2): After drying sodium bicarbonate and table salt, add the remaining raw materials and stir and mix them evenly to obtain a second mixed powder;

[0029] Step (3): Add the second mixed powder prepared in Step (2) to the first mixed powder prepared in Step (1), mix them evenly to obtain a third mixed material for standby;

[0030] Step (4): Add the third mixed material prepared in Step (3) to the inner mold of a tablet press for shaping to obtain the formed tablets of plastic yellowing removal tablets.

[0031] Example 2 and Comparative Examples 1-3 can all refer to the preparation method of Example 1. Then, the tablets prepared in Examples 1-2 and Comparative Examples 1-3 are placed in a sealed packaging bag. During use, it is found that after the vacuum sealing of the packaging bag of the prepared anti-yellowing tablets, when transported to the terminal for sale, gas is generated in some packaging bags, and some bulging phenomena occur. After experimental research, it is found that this part of the gas is carbon dioxide. Initially speculated, it is because the formula contains sodium bicarbonate, and part of the sodium bicarbonate decomposes during transportation, thus generating carbon dioxide. Then, when consumers mix the anti-yellowing tablets with water during use, the foaming performance of the prepared detergent is reduced. Therefore, to overcome this problem, this application conducted parallel tests in Table 1. Then, the anti-yellowing tablets prepared in Table 1 are packaged with packaging bags and placed in a stability test chamber. The main function of the test chamber is to simulate the highest temperature during transportation, and the temperature can be set to about 50 degrees. After 10 days of testing, observe the state of the packaging bag. The instrument used for testing is the HGA-03 headspace gas analyzer produced and provided by Jinan Lang Optoelectronic Technology Co., Ltd. During the test, first fill the same amount of nitrogen into each packaging bag, and then test the content of carbon dioxide in the nitrogen.

[0032] Table 2 Test Results

[0033] Test item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Carbon dioxide content 0％ 0％ 7.2％ 8％ 6％ Foaming performance Qualified Qualified Unqualified Unqualified Unqualified

[0034] The experiments of this application prove that xanthan gum is added in Example 1 and Example 2. Through the compatibility of xanthan gum with other raw material components in the formula, it is found that the content of carbon dioxide in the packaging bags of Example 1 and Example 2 is 0 after testing. In the subsequent foaming performance test, its foaming property reaches a qualified state. On the contrary, in Comparative Examples 1-3, carbon dioxide is detected during the detection. Although the content is not very high, it directly affects the foaming performance, thus affecting the customer's use experience.

[0035] There are two main improvement points in this application: one is to prepare the conventional dosage form detergent into a tablet form through formula adjustment, which facilitates transportation and also facilitates the user to carry; the other is to explore the phenomenon that some bulging occurs in the packaging bag during the transportation of the plastic anti-yellowing tablets in tablet form, and this application has overcome this technical problem through the compounding of raw material components such as xanthan gum.

[0036] In the above technology, stabilizers such as compound phosphonates or reducing agents such as thiourea dioxide can also be added.

[0037] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made to the present invention without departing from the principles and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of this disclosure is only for explanation and not for limiting the present invention, but the scope of protection is defined by the content of the claims.

Claims

1. A plastic yellowing removal sheet, characterized in that: The composition contains the following components by mass percentage: 10-36% surfactant, 20-35% detergent builder, 20-30% solubilizer and 2-3% xanthan gum, wherein the solubilizer includes sodium bicarbonate.

2. A plastic yellowing removal sheet according to claim 1, characterized in that: The washing aid comprises organic acid, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrant and silicon powder.

3. A plastic yellowing removal sheet according to claim 1, characterized in that: The solubilizing agent also includes polyethylene glycol, potassium silicate and salt.

4. A plastic yellowing removal sheet according to claim 1, characterized in that: Also included are complex phosphonates.

5. A plastic yellowing removal sheet according to claim 1, characterized in that: Also included is thiourea dioxide.

6. A plastic yellowing removing sheet as claimed in claim 2, characterized in that: The following steps are included: Step (1): putting organic acid, sodium carboxymethyl starch, hydrogen peroxide particles, silicate penetrant and silicon powder into a blender and mixing them evenly to obtain a mixed powder 1 for later use; Step (2): drying sodium bicarbonate and salt, adding the remaining raw materials thereto, stirring and mixing evenly to obtain mixed powder II; Step (3): adding the mixed powder 2 prepared in step (2) to the mixed powder 1 prepared in step (1), mixing evenly to obtain a mixed material 3 for later use; Step (4): Add the mixture prepared in step (3) to the inner mold of a tablet press for molding to obtain plastic yellowing removal tablets.

7. The method for preparing a plastic yellowing removing sheet according to claim 6, characterized in that: In the step (4), the shape of the formed plastic yellowing removal sheet is any one of an elliptical three-dimensional shape, a circular three-dimensional shape, and a square three-dimensional shape.