Large-package wet tissue and preparation method thereof

Abstract

The invention relates to the field of wet tissues, provides a large-package wet tissue and a preparation method thereof, and solves the defect that the large-package wet tissue in the prior art is easy to be dry at the upper part and wet at the lower part. Comprising a wet tissue body and a cleaning composition applied to the wet tissue body, the wet tissue body is base cloth, and the cleaning composition is prepared from the following raw materials in parts by weight: 0.5-2.0 parts of a soapberry fruit extracting solution, 0.5-2.0 parts of a tea saponin extracting solution, 0.02-0.2 part of sabinol ketone, 0.5-5.0 parts of polyol, 0.005-0.02 part of silver ions and the balance of deionized water. The weight ratio of the base cloth to the cleaning composition is 1: (3-5).

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of wet wipes, and more particularly to a bulk pack wet wipe and a method of making the same. BACKGROUND

[0002] The market size of wet wipes is growing year by year, among which the personal care wet wipes and baby wet wipes are the main categories, and the bulk pack of 80 pieces of wet wipes is the main packaging type. The bulk pack products are convenient for family use, such as baby wet wipes, toilet wet wipes, and kitchen wet wipes. Compared with small pack products such as 7 pieces, 8 pieces, and 10 pieces, the bulk pack products have lower single piece cost and higher cost performance.

[0003] It is well known that the composition of a wet wipe generally consists of water, a carrier cloth (nonwoven fabric), and functional additives (moisturizers, preservatives, antibacterial agents, and cleaning agents, etc.). In a bulk pack of vertically stacked wet wipes, gravity will promote the downward movement of the liquid. Low surface tension liquid, due to its excellent wettability, will be "pumped" from the pores of the upper layer of wet wipes to the pores of the lower layer of wet wipes by capillary action in cooperation with gravity, resulting in excessive liquid (dripping liquid) in the bottom wet wipes and dry upper wet wipes. In order to prevent the downward infiltration of liquid to the bottom of the package, some thickening agents may be added to the bulk pack product to avoid the situation of wet bottom and dry top. However, the addition of various additives not only increases the cost, but also affects the skin feel of the wet wipes, such as too slippery and too sticky.

[0004] Chinese patent application No. 200880113853.9 discloses fluid migration control in a wet wipe, which includes applying a thickening or gelling polymer to a substrate, and applying a liquid portion comprising an aqueous phase and a thickening or gelling agent to the substrate, thereby thickening or gelling the liquid portion, wherein the thickening or gelling polymer and the thickening or gelling agent comprise a binary pair, wherein the binary pair is selected from the group consisting of sodium alginate and Ca 2+ salt; carboxymethyl cellulose and Al 3+ salt; guar gum derivatives (such as HP-guar (hydroxypropyl guar), HE-guar (hydroxyethyl guar), CM-guar (carboxymethyl guar), M-guar (methyl guar), HPM-guar (hydroxypropyl methyl guar), cationic guar, cationic HM guar (cationic hydrophobically modified guar), anionic HM guar (anionic hydrophobically modified guar), and HM guar (hydrophobically modified guar), and borax; pectin and Ca 2+ salt; carrageenan and K +Salt; polyvinyl alcohol and borax; cross-linked polyacrylic acid and neutral sub-liquid; xanthan gum, guar gum, and gellan gum and divalent cations; ionic polymers or surfactants with a charge and polymers or surfactants with an opposite charge, and any combination of the binary pair. The application makes the fluid in the wet wipe not easily migrate downward due to gravity by adding thickening agent in the wet wipe, makes the surface layer of the multi-layer wet wipe not easily dry, but it still affects the skin feel of the wet wipe. SUMMARY

[0005] Therefore, in order to solve the above problems, the present application provides a large package wet wipe and a preparation method thereof, which solves the defect that the large package wet wipe of the prior art is prone to dry on top and wet on bottom.

[0006] To achieve the above object, the present application adopts the following technical scheme: a large package wet wipe, comprising a wet wipe body and a cleaning composition applied on the wet wipe body, wherein the wet wipe body is a base cloth, and the cleaning composition is composed of the following raw materials in parts by weight: soapberry fruit extract 0.5-2.0 parts, tea saponin extract 0.5-2.0 parts, cypressolone 0.02-0.2 parts, polyhydric alcohol 0.5-5.0 parts, silver ion 0.005-0.02 parts, and deionized water in residual amount; and the weight ratio of the base cloth to the cleaning composition is 1:3-5.

[0007] Further, the polyhydric alcohol is a mixture of one or more than two of glycerol, polyethylene glycol, 1,3-butanediol, and propylene glycol in any ratio.

[0008] Further, the base cloth is any one of viscose fiber cloth, pure cotton cloth, spunlace non-woven fabric, and viscose polyester cloth.

[0009] A preparation method of a large package wet wipe, comprising the following preparation steps:

[0010] (1) preparing composition A: adding cypressolone into polyhydric alcohol, stirring and dissolving in a water bath at 40℃±5℃ to obtain composition A; (2) preparing composition B: taking a part of deionized water, sequentially adding soapberry fruit extract, tea saponin extract, and the composition A, stirring uniformly to obtain composition B; (3) preparing composition C: taking the remaining part of deionized water, adding silver ion, stirring uniformly to obtain composition C; (4) first feeding: applying composition B to the base cloth by roller coating, and the weight ratio of the composition B to the base cloth is 0.5-1.0:1; (5) second feeding: cutting and stacking the base cloth after the first feeding, and spraying composition C to the base cloth, and the weight ratio of the composition C to the base cloth is 2.5-4.0:1.

[0011] Further: the base cloth is any one of viscose fabric, pure cotton cloth and viscose polyester cloth, the number of base cloth is greater than or equal to 40 pieces, and the product height is greater than or equal to 60 mm.

[0012] Further: the ambient humidity is controlled at 50%-60% and the temperature is controlled at 20-25 DEG C during stacking in step (5).

[0013] Further: the saponin content in the soapberry fruit extract solution is greater than or equal to 22%.

[0014] Further: the molecular weight of the polyethylene glycol is 200-1000.

[0015] By adopting the foregoing technical solutions, the application has the following beneficial effects:

[0016] 1. The application can save cost and keep each wet wipe moist by selecting raw materials and reasonably compounding the formula to prepare a wet wipe for a large package of cleaning composition, without affecting the cleaning effect.

[0017] 2. The prior art solves the liquid infiltration problem by adding a thickening agent, but brings the side effect of sticky skin feeling. The application does not increase the viscosity, but actively controls the surface tension of the liquid to a high level (> 40 mN / m), and uses a two-step feeding method of "first roller coating high-activity ingredients, then spraying preservative ingredients", which fundamentally slows down the infiltration of liquid caused by gravity and capillary action from the physical principle. This "physical control" instead of "chemical thickening" is a fundamental innovation that distinguishes the application from the prior art.

[0018] 3. The application creatively compounds soapberry fruit extract solution and tea saponin extract solution, which not only maintains the cleaning effect, but also unexpectedly reduces the irritation of soapberry to sensitive skin.

[0019] 4. The application constructs a composite preservative system of "cypress phenol ketone (oil-soluble) + silver ion (water-soluble)", which acts on different parts of microbial cell membranes or different types of microorganisms, and has a broad-spectrum and efficient synergistic antibacterial effect. In particular, in the two-step feeding process, the two are added separately, which may reduce the antagonistic reaction that may occur when mixed in advance, and ensures the preservative stability of the final product.

[0020] 5、Further, the application preferably prepares 80 pieces of large packaging wet wipes, 20 pieces as a stack, the uppermost 20 pieces as the first stack, and the last 20 pieces as the fourth stack. The weight of the first stack and the fourth stack is measured respectively, and the deviation value from the average weight is calculated. The average weight is the weight of each 20 pieces in each package of wet wipes. The average deviation value of the first stack is denoted as the upper deviation, and the average deviation value of the fourth stack is denoted as the lower deviation. Through testing, the upper deviation of the first stack is between -5% and 0%, and the lower deviation of the fourth stack is between 0% and 5%. However, the upper deviation of the competitive wet wipes on the market is below -20%, and the lower deviation is above 20%. DETAILED DESCRIPTION

[0021] Example One

[0022] A large packaging wet wipe comprises a wet wipe body and a cleaning composition applied on the wet wipe body. The wet wipe body is pure cotton cloth, the number of pieces of the pure cotton cloth is 80 pieces, and the cleaning composition is composed of the following weight parts of raw materials: soapberry fruit extract 0.5 parts, tea saponin extract 0.5 parts, cypressolone 0.02 parts, polyethylene glycol 0.5 parts, silver ion 0.005 parts, and deionized water in a remainder amount. The weight ratio of the pure cotton cloth to the cleaning composition is 1:3.

[0023] The preparation method of the above-mentioned large packaging wet wipe comprises the following preparation steps:

[0024] (1) Preparation of composition A: cypressolone is added to polyethylene glycol, stirred and dissolved in a 40℃ water bath to obtain composition A; (2) Preparation of composition B: a part of deionized water is taken, and soapberry fruit extract, tea saponin extract and the composition A are sequentially added and stirred uniformly to obtain composition B; (3) Preparation of composition C: the remaining part of deionized water is taken and silver ion is added and stirred uniformly to obtain composition C; (4) First feeding: composition B is applied to pure cotton cloth by roller coating, and the weight ratio of composition B to pure cotton cloth is 0.5:1; (5) Second feeding: after the pure cotton cloth after the first feeding is cut and stacked, composition C is sprayed on the pure cotton cloth, and the weight ratio of composition C to pure cotton cloth is 3:1.

[0025] In step (5), the environmental humidity is controlled at 50% and the temperature is controlled at 20℃ during stacking. The saponin content in the soapberry fruit extract is 22%, and the molecular weight of the polyethylene glycol is 200.

[0026] Example Two

[0027] A large package wet tissue comprises a wet tissue body and a cleaning composition applied on the wet tissue body, the wet tissue body is viscose fiber cloth, the number of pieces of the viscose fiber cloth is 80 pieces, the cleaning composition is composed of the following weight parts of each raw material: soapberry fruit extract 1.0 parts, tea saponin extract 1.0 parts, cypress phenol ketone 0.1 parts, glycerol 2.5 parts, silver ion 0.01 parts and deionized water in balance; the weight ratio of the viscose fiber cloth to the cleaning composition is 1:4.

[0028] The preparation method of the above-mentioned large package wet tissue comprises the following preparation steps:

[0029] (1) Preparation of composition A: cypress phenol ketone is added to glycerol, stirred and dissolved in a 35℃ water bath to obtain composition A; (2) Preparation of composition B: a part of deionized water is taken, and soapberry fruit extract, tea saponin extract and the composition A are sequentially added and stirred uniformly to obtain composition B; (3) Preparation of composition C: the remaining part of deionized water is taken and silver ion is added and stirred uniformly to obtain composition C; (4) First feeding: composition B is applied to viscose fiber cloth by roller coating, and the weight ratio of the composition B to the base cloth is 0.8:1; (5) Second feeding: after the viscose fiber cloth after the first feeding is cut and stacked, the composition C is sprayed on the viscose fiber cloth, and the weight ratio of the composition C to the viscose fiber cloth is 4:1.

[0030] In step (5), the environmental humidity is controlled at 55% and the temperature is controlled at 23℃ when stacking, and the saponin content in the soapberry fruit extract is ≥22%.

[0031] Example three

[0032] A large package wet tissue comprises a wet tissue body and a cleaning composition applied on the wet tissue body, the wet tissue body is water-jet non-woven fabric, the number of pieces of the water-jet non-woven fabric is 80 pieces, and the grammage of the water-jet non-woven fabric is 50g / m 2 , the cleaning composition is composed of the following weight parts of each raw material: soapberry fruit extract 2.0 parts, tea saponin extract 2.0 parts, cypress phenol ketone 0.2 parts, propylene glycol 5.0 parts, silver ion 0.02 parts and deionized water in balance; the weight ratio of the water-jet non-woven fabric to the cleaning composition is 1:4.

[0033] A preparation method of a large package wet tissue comprises the following preparation steps:

[0034] (1) Preparation of composition A: add cedropone to propylene glycol, dissolve in a 45℃ water bath with stirring to obtain composition A; (2) Preparation of composition B: take a portion of deionized water, add the soapberry fruit extract, tea saponin extract and the composition A in sequence, stir to obtain composition B; (3) Preparation of composition C: take the remaining portion of deionized water, add silver ions, stir to obtain composition C; (4) First feeding: apply composition B to the spunlace non-woven fabric by roller coating, the weight ratio of composition B to spunlace non-woven fabric is 1.0:1; (5) Second feeding: after the first feeding, cut and stack the spunlace non-woven fabric, then spray composition C onto the spunlace non-woven fabric, the spraying pressure is 0.15 MPa, so that composition C is evenly distributed, the weight ratio of composition C to spunlace non-woven fabric is 4.0:1.

[0035] The environmental humidity is controlled at 60% and the temperature is controlled at 25℃ during stacking in step (5), and the saponin content in the soapberry fruit extract is 27%.

[0036] Example Four

[0037] A large package of wet wipes, comprising a wet wipe body and a cleaning composition applied to the wet wipe body, the wet wipe body being viscose polyester fabric, the number of pieces of the viscose polyester fabric being 80 pieces, the cleaning composition being composed of the following weight parts of each raw material: soapberry fruit extract 0.9 parts, tea saponin extract 1.1 parts, cedropone 0.12 parts, 1,3-butanediol 3 parts, silver ions 0.012 parts, and deionized water in residual amount; the weight ratio of the viscose polyester fabric to the cleaning composition being 1:3.5.

[0038] The preparation method of the above-mentioned large package of wet wipes comprises the following preparation steps:

[0039] (1) Preparation of composition A: add cedropone to polyol, dissolve in a 37℃ water bath with stirring to obtain composition A; (2) Preparation of composition B: take a portion of deionized water, add the soapberry fruit extract, tea saponin extract and the composition A in sequence, stir to obtain composition B; (3) Preparation of composition C: take the remaining portion of deionized water, add silver ions, stir to obtain composition C; (4) First feeding: apply composition B to the viscose polyester fabric by roller coating, the weight ratio of composition B to viscose polyester fabric is 0.6:1; (5) Second feeding: after the first feeding, cut and stack the viscose polyester fabric, then spray composition C onto the viscose polyester fabric, the weight ratio of composition C to viscose polyester fabric is 3.5:1.

[0040] The environmental humidity is controlled at 53% and the temperature is controlled at 21℃ during stacking in step (5), and the saponin content in the soapberry fruit extract is 22%.

[0041] Example Five

[0042] A large package wet tissue, comprising a wet tissue body and a cleaning composition applied on the wet tissue body, the wet tissue body is a spunlace non-woven fabric, the spunlace non-woven fabric is 80 pieces, the cleaning composition is composed of the following raw materials in parts by weight: soapberry fruit extract 0.5-2.0 parts, tea saponin extract 0.5-2.0 parts, cypressolone 0.02-0.2 parts, glycerol 0.5 parts, polyethylene glycol 1 part, silver ion 0.005-0.02 parts, and deionized water in balance; the weight ratio of the spunlace non-woven fabric to the cleaning composition is 1:3-5.

[0043] The preparation method of the above-mentioned large package wet tissue, comprising the following preparation steps:

[0044] (1) Preparation of composition A: cypressolone is added to glycerol and polyethylene glycol, stirred and dissolved in a 42℃ water bath to obtain composition A; (2) Preparation of composition B: take a part of deionized water, add soapberry fruit extract, tea saponin extract and the composition A in turn, stir uniformly to obtain composition B; (3) Preparation of composition C: take the remaining part of deionized water and add silver ion, stir uniformly to obtain composition C; (4) First feeding: apply composition B to spunlace non-woven fabric by roller coating, the weight ratio of composition B to spunlace non-woven fabric is 0.8:1; (5) Second feeding: after the first feeding, the spunlace non-woven fabric is cut and stacked, and composition C is sprayed on the spunlace non-woven fabric, the weight ratio of composition C to spunlace non-woven fabric is 2.9:1.

[0045] The environmental humidity is controlled at 60% and the temperature is controlled at 25℃ during stacking in step (5), the saponin content in the soapberry fruit extract is 24%, and the molecular weight of the polyethylene glycol is 800.

[0046] Example Six

[0047] A large package wet tissue, comprising a wet tissue body and a cleaning composition applied on the wet tissue body, the wet tissue body is pure cotton cloth, the pure cotton cloth is 80 pieces, the cleaning composition is composed of the following raw materials in parts by weight: soapberry fruit extract 2.0 parts, tea saponin extract 1.0 part, cypressolone 0.1 part, propylene glycol 4 parts, silver ion 0.02 parts, and deionized water in balance; the weight ratio of the pure cotton cloth to the cleaning composition is 1:3.

[0048] The preparation method of the above-mentioned large package wet tissue, comprising the following preparation steps:

[0049] (1) Preparation of composition A: junenol ketone is added into propylene glycol, dissolved by stirring in a 45℃ water bath to obtain composition A; (2) Preparation of composition B: a portion of deionized water is taken, and the soapberry fruit extract, tea saponin extract and the composition A are sequentially added and stirred to obtain composition B; (3) Preparation of composition C: the remaining portion of deionized water is taken and silver ions are added and stirred to obtain composition C; (4) First feeding: the composition B is applied to the pure cotton cloth by roller coating, and the weight ratio of the composition B to the pure cotton cloth is 1.0:1; (5) Second feeding: after the first feeding, the pure cotton cloth is cut and stacked, and the composition C is sprayed onto the pure cotton cloth, and the weight ratio of the composition C to the pure cotton cloth is 3.0:1.

[0050] The environment humidity is controlled at -60% and the temperature is controlled at 22℃ during the stacking in step (5), and the saponin content in the soapberry fruit extract is 28%.

[0051] Comparative Example One

[0052] In Reference Example Two, 80 pieces of large packaging wet wipes of the present comparative example do not have material twice feeding, and all raw materials are directly mixed once and applied to the viscose fiber cloth by one spraying, and other technical solutions are the same as those of Example Two.

[0053] Comparative Example Two

[0054] In Reference Example Two, 80 pieces of large packaging wet wipes of the present comparative example directly add silver ions into the composition B, and then adopt one-step roller coating feeding, that is, the preparation and spraying steps of the composition C are cancelled, and other technical solutions are consistent with those of Example Two.

[0055] Comparative Example Three

[0056] In Reference Example Two, the present comparative example uses equal weight parts of a conventional chemical surfactant lauryl glucoside to replace the soapberry fruit extract and the tea saponin extract, the cleaning composition prepared by the formula has a surface tension lower than 30 mN / m, and other technical solutions are the same as those of Example Two.

[0057] Comparative Example Four

[0058] In Reference Example Two, the present comparative example omits junenol ketone and only relies on silver ions as a preservative, and 80 pieces of large packaging wet wipes of the present comparative example do not have material twice feeding, and all raw materials are directly mixed once and applied to the viscose fiber cloth by one spraying, and other technical solutions are the same as those of Example Two.

[0059] Comparative Example Five

[0060] Reference Example 2, the wet wipe composition of the present comparative example contains 2.5 parts of glycerol, 0.01 parts of silver ion and deionized water as the cleaning composition, and all the raw materials are mixed by one-step method and sprayed on the viscose fiber cloth once, and other technical solutions are the same as those of Example 2.

[0061] Comparative Example 6

[0062] Reference Example 2, the wet wipe composition of the present comparative example contains 2.5 parts of glycerol, 0.01 parts of silver ion and deionized water as the cleaning composition, and all the raw materials are mixed by one-step method and sprayed on the viscose fiber cloth once, and other technical solutions are the same as those of Example 2.

[0063] The wetting performance of the wet wipes of Examples 1-6 and Comparative Examples 1-6 of the present application was tested, and the results are shown in the following table:

[0064] Test method

[0065] Taking 80 pieces of large package wet wipes as an example, the uppermost 20 pieces are the first pile, the next 20 pieces are the second pile, the next 20 pieces are the third pile, and the last 20 pieces are the fourth pile. The weight of the first pile and the fourth pile was measured, and the average weight was calculated. The average weight was the weight of every 20 pieces in each package of wet wipes, which was calculated as a percentage. The average deviation of the first pile was recorded as the upper deviation, and the average deviation of the fourth pile was recorded as the lower deviation.

[0066]

[0067] Upper deviation / % Lower deviation / % Comparative Example 1 -15.8 17.7 Comparative Example 2 -25.5 19.7 Comparative Example 3 -16.1 16.0 Comparative Example 4 -20.7 19.6 Comparative Example 5 -18.3 20.5 Comparative Example 6 -16.4 16.9

[0068] It can be found through the test that the moisturizing property of the first pile of the large package wet wipes of the present application is stronger than that of the comparative example.

[0069] Although the present application has been specifically shown and described with reference to preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail can be made therein without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A bulk package of wet wipes, comprising a wipe body and a cleaning composition applied to the wipe body, wherein the wipe body is a base fabric, characterized in that: The cleaning composition comprises the following raw materials in parts by weight: 0.5-2.0 parts of Sapindus mukorossi fruit extract, 0.5-2.0 parts of tea saponin extract, 0.02-0.2 parts of juniper ketone, 0.5-5.0 parts of polyol, 0.005-0.02 parts of silver ions, and the balance being deionized water; the weight ratio of the base fabric to the cleaning composition is 1:3-5.

2. The bulk-packaged wet wipes according to claim 1, characterized in that: The polyol is one or more of glycerol, polyethylene glycol, 1,3-butanediol, and propylene glycol in any ratio.

3. The bulk-packaged wet wipes according to claim 1, characterized in that: The base fabric is any one of viscose fiber fabric, pure cotton fabric, spunlace nonwoven fabric, and viscose polyester fabric.

4. A method for preparing a large package of wet wipes, characterized in that, The preparation steps include the following: (1) Preparation of composition A: Add juniper ketone to polyol and stir to dissolve in a water bath at 40℃±5℃ to obtain composition A; (2) Preparation of composition B: Take a portion of deionized water and add soapberry fruit extract, tea saponin extract and composition A in sequence, stir evenly to obtain composition B; (3) Preparation of composition C: Take the remaining portion of deionized water and add silver ions, stir evenly to obtain composition C; (4) First loading: Apply composition B to the base fabric by roller coating, the weight ratio of composition B to base fabric is 0.5-1.0:1; (5) Second loading: After the base fabric after the first loading is cut and stacked, spray composition C onto the base fabric, the weight ratio of composition C to base fabric is 2.5-4.0:

1.

5. The method for preparing a large package of wet wipes according to claim 4, characterized in that: The base fabric is any one of viscose fiber cloth, pure cotton cloth, and viscose polyester cloth, the number of base fabrics is ≥40 pieces, and the product height is ≥60mm.

6. The method for preparing a large package of wet wipes according to claim 1, characterized in that: In step (5), the ambient humidity is controlled at 50%-60% and the temperature is controlled at 20-25℃ during stacking.

7. The method for preparing a large package of wet wipes according to claim 1, characterized in that: The saponin content in the Sapindus mukorossi fruit extract is ≥22%.

8. The method for preparing a large package of wet wipes according to claim 1, characterized in that: The molecular weight of the polyethylene glycol is 200-1000.

Images