Handle type konjak polysaccharide sponge and preparation method thereof

Abstract

The application provides a handle type konjak polysaccharide sponge, which comprises a handle, a full-cotton spunlace non-woven fabric and a konjak polysaccharide sponge; the handle comprises a handle rod, a connecting rod and a handle bottom, the connecting rod is arranged at the front end of the handle rod and extends downward from the bottom of the handle rod, the connecting rod extends into the interior of the konjak polysaccharide sponge and is connected with the handle bottom; wherein the connecting rod extending into the interior of the konjak polysaccharide sponge and the periphery of the handle bottom are wrapped with the full-cotton spunlace non-woven fabric, the full-cotton spunlace non-woven fabric is adhesively connected with the connecting rod and the handle bottom, and the full-cotton spunlace non-woven fabric is cross-linked and embeddedly connected with the konjak polysaccharide sponge. The application also provides a preparation method of the handle type konjak polysaccharide sponge. The full-cotton spunlace non-woven fabric is used as a connecting medium, so that the problem that the handle is not easy to combine with the konjak polysaccharide fiber is solved, and the friction between the handle bottom and the konjak polysaccharide fiber during use of the handle is buffered, thereby prolonging the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily necessities, in particular to a handle type konjac polysaccharide sponge and a preparation method thereof. BACKGROUND

[0002] Amorphophallus Blume, also known as konjac (Amorphophallus konjac), is a perennial herbaceous plant of Araceae konjac, alkaline plant, which has been planted for more than 2,000 years in China, and the resources are abundant. Konjac is a traditional healthy food, which has been approved as a food additive in Japan, the United States and the European Union. In China, konjac powder has also been approved as a food additive and food raw material. The tuber of konjac contains a large amount of glucomannan (KGM), and the content is about 44-64%. Konjac glucomannan is a water-soluble natural high molecular polysaccharide, which has good biocompatibility, biodegradability, and biological activities such as anti-tumor, cholesterol-lowering, blood lipid-regulating, anti-hyperglycemia, anti-inflammatory and immune regulation, which makes it show good application prospect in the field of biomedicine. Glucomannan has many excellent properties, and can be used as gelling agent, thickening agent, stabilizer, emulsifier, additive, etc., and is widely used in food, medicine, printing and dyeing, building, coating, textile and papermaking fields, and has great market application value.

[0003] In recent years, konjac polysaccharide sponge produced by konjac glucomannan as the main raw material is loved by consumers at home and abroad due to its natural source, no irritation to the skin, no side effects, safety and biodegradability, and can be used for bathing, washing dishes and utensils, etc. However, the existing konjac polysaccharide sponge is completely composed of 3D network polysaccharide plant fiber structure, and the use environment is mostly humid, which makes it not easy to be directly embedded with plastic, rubber, wood, metal and other material handles. At the same time, the polysaccharide fiber structure is generally more fragile than the synthetic sponge structure, and the joint between the handle and the sponge body is easily damaged, resulting in a very short product service life and failing to meet the use requirements. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a new handle type konjac polysaccharide sponge and a preparation method thereof, which can be used for bathing, washing dishes and utensils, so as to avoid the problems of difficulty in combining the handle with the polysaccharide fiber and damage of the polysaccharide fiber structure by the handle when using the existing konjac polysaccharide sponge.

[0005] The present application solves the above technical problems by adopting the following technical solutions:

[0006] A handle type konjac polysaccharide sponge, comprising a handle, a full cotton spunlace non-woven fabric and a konjac polysaccharide sponge; the handle comprises a handle rod, a connecting rod and a handle bottom, the connecting rod is arranged at the front end of the handle rod and extends downward from the bottom of the handle rod, the connecting rod extends into the interior of the konjac polysaccharide sponge and is connected with the handle bottom; wherein the connecting rod extending into the interior of the konjac polysaccharide sponge and the outer periphery of the handle bottom are wrapped with the full cotton spunlace non-woven fabric, the full cotton spunlace non-woven fabric is adhesively bonded between the connecting rod and the handle bottom, and the full cotton spunlace non-woven fabric and the konjac polysaccharide sponge are cross-linked and embeddedly connected.

[0007] As one of the preferred modes of the present application, the handle is made of plastic, wood or rubber material.

[0008] As one of the preferred modes of the present application, in the handle: the handle rod adopts a straight rod structure or an arc-shaped curved structure, and a hole for hooking is arranged at the rear end of the handle rod.

[0009] As one of the preferred modes of the present application, the handle rod and the connecting rod are connected through buckles / screws, and the included angle is 90-180°.

[0010] As one of the preferred modes of the present application, the connecting rod is perpendicular to the middle part of the handle bottom, and at the same time, the connecting rod and the handle bottom are integrally formed or fixed through an adhesive / bolt / buckle.

[0011] As one of the preferred modes of the present application, the shape of the handle bottom is circular, square or special-shaped.

[0012] As one of the preferred modes of the present application, the full cotton spunlace non-woven fabric is prepared from natural fiber pure cotton as raw material, and the konjac polysaccharide sponge is prepared from konjac powder, a gelling agent and a cross-linking agent as raw materials.

[0013] As one of the preferred modes of the present application, the shape of the konjac polysaccharide sponge is square, circular, oval or special-shaped.

[0014] As one of the preferred modes of the present application, the cross-linking and embeddedly connecting between the full cotton spunlace non-woven fabric and the konjac polysaccharide sponge is realized through the following method:

[0015] The konjac powder is added into a water solution containing a gelling agent and a cross-linking agent prepared in advance, stirred thoroughly and then injected into a mold to form a preliminary blank; a handle bottom and a connecting rod combined body, which is previously bonded with a full cotton spunlace non-woven fabric, is placed in the mold, so that the prepared preliminary blank body wraps the combined body and covers the area of the full cotton spunlace non-woven fabric; after the preliminary blank is placed, it is subjected to steaming, freezing, and then the handle rod is connected to the preliminary blank after the preliminary blank is thawed, demolded, washed, trimmed and dried, so that the handle type konjac polysaccharide sponge required by the target is obtained. Based on this, the cross-linking and embeddedly connecting between the full cotton spunlace non-woven fabric and the konjac polysaccharide sponge is realized.

[0016] A preparation method of the handle type konjac polysaccharide sponge, comprising the following steps:

[0017] (1) adding konjac powder into a water solution containing a gelling agent and a crosslinking agent prepared in advance, fully stirring, and then pouring into a mold to form a preliminary blank;

[0018] (2) placing a handle bottom and a connecting rod combination body with a full cotton spunlace non-woven fabric pre-bonding on the handle bottom into the mold, so that the preliminary blank prepared in step (1) wraps the combination body and covers the area of the full cotton spunlace non-woven fabric;

[0019] (3) after the preliminary blank is placed for 10-20 hours, it is cooked at 100-110 DEG C for 2-4 hours, and then is placed in a freezer at-25 DEG C or below for 3-5 days to obtain a parison;

[0020] (4) after the parison is thawed, demolded, washed, trimmed and dried, the parison is connected with the handle rod to obtain the target handle type konjac polysaccharide sponge.

[0021] As one of the preferred modes of the present application, the content of glucomannan in the konjac powder is greater than or equal to 90%, and the addition amount of the konjac powder is 3-15% of the water solution.

[0022] As one of the preferred modes of the present application, the gelling agent is at least one of calcium hydroxide, calcium acetate and calcium citrate, and the addition amount of the gelling agent is 0.01-0.05% of the water solution.

[0023] As one of the preferred modes of the present application, the crosslinking agent is a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1, and the addition amount of the crosslinking agent is 0.1-0.3% of the water solution.

[0024] As one of the preferred modes of the present application, the handle bottom and the connecting rod combination body are wrapped by the preliminary blank and are fixed by a Y-shaped support.

[0025] The present application has the following advantages compared with the prior art:

[0026] (1) The full cotton spunlace non-woven fabric of the present application is a natural cellulose polysaccharide, which has a similar rich sugar hydroxyl structure to konjac polysaccharide and can be tightly combined with konjac polysaccharide fiber without separation;

[0027] (2) The present application uses full cotton spunlace non-woven fabric as a connecting medium, which not only solves the problem that the handle is not easy to combine with konjac polysaccharide fiber, but also can buffer the friction between the handle bottom and the konjac polysaccharide fiber during use, thereby prolonging the service life;

[0028] (3) The product of the present application can be used for bathing, scrubbing dishes and cookware, and all raw materials of the product are selected from green natural substances, which is safe. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the handle type konjac polysaccharide sponge in Example 1;

[0030] Figure 2 is a partial cutaway view of Figure 1 .

[0031] In the figure: 1 is a handle, 11 is a handle rod, 111 is a hole, 12 is a connecting rod, 13 is a handle bottom, 14 is a buckle, 2 is a full cotton spunlace nonwoven fabric, and 3 is a konjac polysaccharide sponge. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described in detail below, which are implemented on the premise of the technical solutions of the present application, and detailed implementation modes and specific operation processes are given, but the protection scope of the present application is not limited to the following embodiments.

[0033] Example 1

[0034] As shown in Figure 1 , 2 , a handle type konjac polysaccharide sponge of the present embodiment comprises a handle 1, a full cotton spunlace nonwoven fabric 2 and a konjac polysaccharide sponge 3. The handle 1 comprises a handle rod 11, a connecting rod 12 and a handle bottom 13, the connecting rod 12 is arranged at the front end of the handle rod 11 and extends downward from the bottom of the handle rod 11, the connecting rod 12 extends into the inside of the konjac polysaccharide sponge 3 and is connected with the handle bottom 13. Among them, the connecting rod 12 extending into the inside of the konjac polysaccharide sponge 3 and the handle bottom 13 are wrapped with the full cotton spunlace nonwoven fabric 2, the full cotton spunlace nonwoven fabric 2 is adhesively connected between the connecting rod 12 and the handle bottom 13, and the full cotton spunlace nonwoven fabric 2 is crosslinked and embeddedly connected with the konjac polysaccharide sponge 3.

[0035] Specifically, in the present embodiment, the handle 1 is made of plastic material.

[0036] And in the handle 1: the handle rod 11 adopts a straight rod structure, and the rear end of the handle rod 11 is provided with a hole 111 for hooking and cooperating.

[0037] The handle rod 11 and the connecting rod 12 are connected through the buckle 14, and the included angle is 90°.

[0038] The connecting rod 12 is perpendicular to the middle part of the handle bottom 13, and at the same time, the connecting rod 12 and the handle bottom 13 are integrally formed.

[0039] The depth of the connecting rod 12 extending into the konjac polysaccharide sponge 3 is 1.5-2.0 cm.

[0040] The shape of the handle bottom 13 is square.

[0041] Specifically, in this embodiment, the full-cotton spunlace nonwoven fabric 2 is prepared from natural fiber pure cotton.

[0042] The konjac polysaccharide sponge 3 is prepared from konjac powder, gelling agent and crosslinking agent, and has a square shape.

[0043] The specific preparation method of the handle-type konjac polysaccharide sponge of this embodiment is as follows:

[0044] (1) 450 g of konjac powder (glucomannan content ≥ 90%) is added to a 15000 g aqueous solution containing 1.5 g of gelling agent (calcium hydroxide) and 15 g of crosslinking agent (a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1) prepared in advance, and after being fully stirred, it is injected into a mold to form a preliminary blank.

[0045] (2) The handle bottom 13 and the connecting rod 12 combination body to which the full-cotton spunlace nonwoven fabric 2 is previously bonded are slowly placed in the mold, so that the preliminary blank body prepared in step (1) slowly wraps the combination body and covers the area of the full-cotton spunlace nonwoven fabric 2, and is fixed with a Y-shaped support.

[0046] (3) After the preliminary blank is placed for 10 h, it is cooked at 100℃ for 2 h, and after completion, it is placed in a freezer at-25℃ or below for 3-5 days to obtain a parison.

[0047] (4) After the parison is thawed, demolded, washed, trimmed and dried, it is connected with the handle rod 11 to obtain the target handle-type konjac polysaccharide sponge.

[0048] Embodiment 2

[0049] The handle-type konjac polysaccharide sponge of this embodiment is basically the same as that of Embodiment 1, and the main difference is that:

[0050] I. Structure, raw materials:

[0051] In this embodiment, the handle 1 of the handle-type konjac polysaccharide sponge is made of wood.

[0052] In the handle 1, the handle rod 11 has an arc-shaped curved structure.

[0053] The handle rod 11 and the connecting rod 12 are connected by screws, and the included angle is 135°.

[0054] The connecting rod 12 is perpendicular to the middle part of the handle bottom 13, and at the same time, the connecting rod 12 and the handle bottom 13 are fixed by an adhesive.

[0055] The handle bottom 13 has a circular shape.

[0056] The konjac polysaccharide sponge 3 has a circular shape.

[0057] The specific preparation method of the handle-type konjac polysaccharide sponge of this embodiment is as follows:

[0058] II. Preparation method:

[0059] (1) 1000g of konjac powder (glucomannan content ≥ 90%) is added to a previously prepared 15000g aqueous solution containing 4.5g of gelling agent (calcium acetate), 30g of crosslinking agent (a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1), stirred thoroughly, and then injected into a mold to form a preliminary blank.

[0060] (2) The handle base 13 and connecting rod 12 combination body with cotton spunlace non-woven fabric 2 pre-bonded is slowly placed in the mold, the preliminary blank body prepared in step (1) is slowly wrapped around the combination body and covers the area of the cotton spunlace non-woven fabric 2, and is fixed with a Y-shaped support.

[0061] (3) After the preliminary blank is placed for 15h, it is cooked at 105℃ for 3h, and after completion, it is frozen in a refrigerator at -25℃ or below for 4 days to obtain a parison.

[0062] (4) After the parison is thawed, demolded, washed, trimmed, and dried, it is connected with the handle rod 11 to obtain the target handle type konjac polysaccharide sponge.

[0063] Example 3

[0064] The handle type konjac polysaccharide sponge of this example is basically the same as that of Example 1, with the main difference being:

[0065] I. Structure, raw materials:

[0066] The handle type konjac polysaccharide sponge of this example uses rubber material for the handle 1.

[0067] And in the handle 1: the included angle between the handle rod 11 and the connecting rod 12 is 140°.

[0068] The connecting rod 12 is perpendicular to the middle part of the handle base 13, and at the same time, the connecting rod 12 and the handle base 13 are fixed by bolts.

[0069] The shape of the handle base 13 is or is not.

[0070] The shape of the konjac polysaccharide sponge 3 is oval.

[0071] I. Preparation method:

[0072] (1) 1000g of konjac powder (glucomannan content ≥ 90%) is added to a previously prepared 15000g aqueous solution containing 4.5g of gelling agent (calcium acetate), 30g of crosslinking agent (a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1), stirred thoroughly, and then injected into a mold to form a preliminary blank.

[0073] (2) Slowly place the handle bottom 13, connecting rod 12 combination body with the full cotton spunlace non-woven fabric 2 pre-adhered in the mold, so that the initial embryo material body prepared in step (1) slowly wraps the combination body and covers the area of the full cotton spunlace non-woven fabric 2, and is fixed with a Y-shaped support.

[0074] (3) After the initial embryo is placed for 20 h, it is cooked at 110°C for 4 h, and after completion, it is placed in a freezer at-25°C or below for 5 days to obtain a parison.

[0075] (4) After the parison is thawed, demolded, washed, trimmed, and dried, it is connected with the handle rod 11 to obtain a handle type konjac polysaccharide sponge required by the target.

[0076] Example 4

[0077] The handle type konjac polysaccharide sponge of the present embodiment is basically the same as that of Example 1, and the main difference is that:

[0078] I. Structure, raw materials:

[0079] The handle type konjac polysaccharide sponge of the present embodiment uses wooden material for the handle 1.

[0080] And in the handle 1: the handle rod 11 adopts an arc-shaped curved structure.

[0081] The included angle between the handle rod 11 and the connecting rod 12 is 180°.

[0082] The connecting rod 12 is perpendicular to the middle part of the handle bottom 13, and at the same time, the connecting rod 12 and the handle bottom 13 are also fixed through the buckle 14.

[0083] The shape of the handle bottom 13 is square.

[0084] The shape of the konjac polysaccharide sponge 3 is square.

[0085] II. Preparation method:

[0086] (1) 2250 g of konjac powder (glucomannan content ≥ 90%) is added to a 15000 g aqueous solution containing 7.5 g of gelling agent (calcium hydroxide) and 45 g of crosslinking agent (a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1) prepared in advance, and after being fully stirred, it is injected into a mold to form an initial blank.

[0087] (2) Slowly place the handle bottom 13, connecting rod 12 combination body with the full cotton spunlace non-woven fabric 2 pre-adhered in the mold, so that the initial embryo material body prepared in step (1) slowly wraps the combination body and covers the area of the full cotton spunlace non-woven fabric 2, and is fixed with a Y-shaped support.

[0088] (3) After the initial embryo is placed for 20 h, it is cooked at 110°C for 4 h, and after completion, it is placed in a freezer at-25°C or below for 5 days to obtain a parison.

[0089] (4) After the parison is thawed, demolded, cleaned, trimmed and dried, it is connected with the handle 11 to obtain the target handle type konjac polysaccharide sponge.

[0090] Comparative Example

[0091] The handle type konjac polysaccharide sponge of the present comparative example is basically the same as that of Example 2, and the main difference is that the handle base 13 and the connecting rod 12 combination in step (2) of the preparation process do not need to be adhered to the full cotton spunlace non-woven fabric 2.

[0092] Test Example

[0093] The present test is used to test the use effect of the handle type konjac polysaccharide sponge prepared by the present application.

[0094] Test Method:

[0095] The handle type konjac polysaccharide sponge is prepared according to the method of the present application (taking Example 2 as an example) and the method of the comparative example, respectively, and the use test is carried out by simulating the kitchen environment to brush the stainless steel pot.

[0096] Test Results: The results are shown in Table 1, respectively.

[0097] Table 1 Use Test Results

[0098] Sample type Brushing time min / occasion Number of brushings before breakage Description of breakage Example 2 sample 1 2 415 Fiber breakage at sponge to pot contact surface Example 2 sample 2 2 399 Mid-sponge breakage Example 2 sample 3 2 406 Fiber breakage at sponge to pot contact surface Comparative sample 1 2 57 Sponge breakage, handle bottom leakage Comparative sample 2 2 43 Sponge loosening, tear at connecting rod Comparative sample 3 2 60 Sponge breakage, handle bottom leakage

[0099] As can be seen from the results in Table 1, the present application uses full cotton spunlace non-woven fabric as a connecting medium, which not only solves the problem that the handle is not easy to combine with the konjac polysaccharide fiber, but also can buffer the friction between the handle base and the konjac polysaccharide fiber during use, greatly prolonging the service life.

[0100] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A handle-type konjac polysaccharide sponge, characterized in that, The device includes a handle, a cotton spunlace nonwoven fabric, and a konjac polysaccharide sponge. The handle includes a stem, a connecting rod, and a handle base. The connecting rod is located at the front end of the stem and extends downward from the bottom of the stem. The end of the connecting rod extends into the interior of the konjac polysaccharide sponge and connects to the handle base. The connecting rod extending into the interior of the konjac polysaccharide sponge and the handle base are wrapped with cotton spunlace nonwoven fabric. The cotton spunlace nonwoven fabric is adhesively bonded to the connecting rod and the handle base. The cotton spunlace nonwoven fabric and the konjac polysaccharide sponge are cross-linked and interlocked. The cross-linking and interlocking connection between the all-cotton spunlace nonwoven fabric and the konjac polysaccharide sponge is specifically achieved by placing the handle bottom and connecting rod of the all-cotton spunlace nonwoven fabric pre-bonded to a mold containing a pre-prepared aqueous solution of konjac flour containing a gelling agent and a cross-linking agent. This allows the pre-prepared material to envelop the connector and cover the area of ​​the all-cotton spunlace nonwoven fabric. After standing for 10-20 hours, it is steamed at 100-110℃ for 2-4 hours. After completion, it is frozen in a cold storage below -25℃ for 3-5 days.

2. The handle-type konjac polysaccharide sponge according to claim 1, characterized in that, The handle is made of plastic, wood, or rubber.

3. The handle-type konjac polysaccharide sponge according to claim 1, characterized in that, In the handle: the handle rod adopts a straight rod structure or an arc-shaped curved structure, and the rear end of the handle rod is provided with a hole for hooking and engaging.

4. The handle-type konjac polysaccharide sponge according to claim 1, characterized in that, The handle and the connecting rod are connected by a snap-fit / screw, and the included angle is 90~180°.

5. The handle-type konjac polysaccharide sponge according to claim 1, characterized in that, The connecting rod is perpendicular to the middle of the handle bottom, and the connecting rod and the handle bottom are integrally formed, or fixed by adhesive / bolt / clip.

6. The handle-type konjac polysaccharide sponge according to claim 1, characterized in that, The all-cotton spunlace nonwoven fabric is made from natural fiber pure cotton, and the konjac polysaccharide sponge is made from konjac flour, gelling agent, and cross-linking agent.

7. A method for preparing a handle-type konjac polysaccharide sponge as described in any one of claims 1 to 6, characterized in that, Includes the following steps: (1) Add konjac flour to a pre-prepared aqueous solution containing gelling agent and cross-linking agent, stir thoroughly, and then pour into a mold to form a preliminary blank; (2) Place the handle bottom and connecting rod assembly pre-bonded with cotton spunlace nonwoven fabric in the mold, so that the pre-form material obtained in step (1) wraps the assembly and covers the area of ​​the cotton spunlace nonwoven fabric. (3) After the initial embryo is left to stand for 10-20 hours, it is steamed at 100-110℃ for 2-4 hours. After completion, it is placed in a cold storage below -25℃ and frozen for 3-5 days to obtain the blank. (4) After the blank is thawed, demolded, cleaned, trimmed and dried, it is connected to the handle to obtain the desired handle-type konjac polysaccharide sponge.

8. The method for preparing the handle-type konjac polysaccharide sponge according to claim 7, characterized in that, The konjac flour has a glucomannan content of ≥90%, and the amount of konjac flour added is 3~15% of the aqueous solution.

9. The method for preparing the handle-type konjac polysaccharide sponge according to claim 7, characterized in that, The gelling agent is at least one of calcium hydroxide, calcium acetate, and calcium citrate, and the amount of gelling agent added is 0.01~0.05% of the aqueous solution.

10. The method for preparing the handle-type konjac polysaccharide sponge according to claim 7, characterized in that, The crosslinking agent is a mixture of sodium trimetaphosphate and disodium hydrogen phosphate in a mass ratio of 2:1, and the amount of crosslinking agent added is 0.1~0.3% of the aqueous solution.

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